10 jobs found

Location: London (Office) On-Site Full-time Compensation: $250K - $300K We are hiring on behalf of our client who is a high-growth development firm behind a market-leading digital asset launchpad. Operating at a massive scale with over $750M in daily trading volume and nearly $1B in revenue generated over the last two years, the organization maintains a lean, high-impact team of fewer than 100 people. The environment is fast-paced, data-driven, and maintains a high bar for engineering excellence. Decisions are made through experimentation, bureaucracy is kept to a minimum, and engineers are granted end-to-end ownership of their platforms. Our client is seeking a Senior Payments Platforms Engineer to own and scale the infrastructure backbone powering critical fiat-to-crypto payment flows. This is a senior technical contributor role designed for an expert who builds cloud-native platforms and defines engineering standards to enable high-velocity product teams. The successful candidate will bring deep experience from a neobank, payment service provider (PSP), or tier-1 financial institution. This individual will be responsible for ensuring that cloud infrastructure remains reliable, scalable, and compliant under real-world financial constraints and rigorous regulatory expectations. Key Responsibilities Infrastructure Architecture: Design and operate multi-region, highly available AWS-based payments infrastructure with financial-grade resilience (active-active/active-passive failover and RTO/RPO commitments). Infrastructure as Code (IaC): Manage the full lifecycle of AWS resources (VPC, EKS/ECS, RDS/Aurora, SQS/SNS, API Gateway) using Terraform, Pulumi, or CDK. Network Security: Design and enforce network architecture for regulated environments, including private subnets, PrivateLink integrations for third-party providers (e.g., Plaid, Stripe), and WAF/Shield Advanced configurations. CI/CD & Deployment: Build and maintain pipelines supporting high-frequency production deployments, including blue/green releases, automated rollbacks, and SLO-gated deployment controls. Security & Compliance: Define secrets management strategies (KMS, HSM integration) and design infrastructure controls to satisfy PCI DSS, SOC 2, and regulatory (FCA) audit requirements. Observability: Own the monitoring stack (OpenTelemetry, CloudWatch, OpenSearch) to surface payment failures, latency spikes, and compliance anomalies. Data Platform Management: Manage RDS Aurora PostgreSQL and event streaming (MSK/Kafka) for high-stakes transactional and reconciliation workloads. Reliability & Disaster Recovery: Build automated runbooks, chaos engineering experiments, and load-test harnesses. Maintain and test multi-region disaster recovery scenarios. Mentorship & Cost Engineering: Drive platform cost efficiency and mentor backend engineers on containerization and 12-factor app best practices. Requirements Deep AWS Expertise: Extensive production experience across core compute, networking, storage, and security services. Financial Services Background: Proven track record at a neobank (e.g., Monzo, Revolut), PSP (e.g., Stripe, Adyen, ), or a major bank's infrastructure division. IaC & Containers: Mastery of Terraform at scale and strong experience with Kubernetes (EKS) or ECS operations. Database & Messaging: Experience running RDS/Aurora PostgreSQL for transactional workloads and operating Kafka (MSK) or Kinesis for financial event pipelines. Compliance Literacy: Familiarity with the infrastructure obligations of PCI DSS, SOC 2, or FCA/PRA regulated environments. Operational Maturity: Experience in 24/7 on-call rotations for financial systems with a focus on incident response and post-mortems. Preferred Qualifications: Experience with Solana or EVM blockchain infrastructure, policy-as-code (OPA), or FinOps certifications. Proficiency in Rust, Python, or Go for tooling is a significant plus. Benefits Compensation: $250K - $300K High Impact: Direct ownership of systems reaching hundreds of thousands of users with immediate production impact. Location: This is an in-person role based in London. Environment: A high-intensity, low-bureaucracy culture where performance is rewarded with significant autonomy. Interview Process Recruiter / HR Screening Call Founder / CEO Interview Technical Interview I Technical Interview II Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search. Commitment to Equality and Accessibility At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing . MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd's Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting .

Location: London (Office) On-Site Full-time Compensation: $250K - $300K We are hiring on behalf of our client who is a high-growth development firm behind a market-leading digital asset launchpad. Operating at a massive scale with over $750M in daily trading volume and nearly $1B in revenue generated over the last two years, the organization maintains a lean, high-impact team of fewer than 100 people. The environment is fast-paced, data-driven, and maintains a high bar for engineering excellence. Decisions are made through experimentation, bureaucracy is kept to a minimum, and engineers are granted end-to-end ownership of their platforms. Our client is seeking a Senior Payments Platforms Engineer to own and scale the infrastructure backbone powering critical fiat-to-crypto payment flows. This is a senior technical contributor role designed for an expert who builds cloud-native platforms and defines engineering standards to enable high-velocity product teams. The successful candidate will bring deep experience from a neobank, payment service provider (PSP), or tier-1 financial institution. This individual will be responsible for ensuring that cloud infrastructure remains reliable, scalable, and compliant under real-world financial constraints and rigorous regulatory expectations. Key Responsibilities Infrastructure Architecture: Design and operate multi-region, highly available AWS-based payments infrastructure with financial-grade resilience (active-active/active-passive failover and RTO/RPO commitments). Infrastructure as Code (IaC): Manage the full lifecycle of AWS resources (VPC, EKS/ECS, RDS/Aurora, SQS/SNS, API Gateway) using Terraform, Pulumi, or CDK. Network Security: Design and enforce network architecture for regulated environments, including private subnets, PrivateLink integrations for third-party providers (e.g., Plaid, Stripe), and WAF/Shield Advanced configurations. CI/CD & Deployment: Build and maintain pipelines supporting high-frequency production deployments, including blue/green releases, automated rollbacks, and SLO-gated deployment controls. Security & Compliance: Define secrets management strategies (KMS, HSM integration) and design infrastructure controls to satisfy PCI DSS, SOC 2, and regulatory (FCA) audit requirements. Observability: Own the monitoring stack (OpenTelemetry, CloudWatch, OpenSearch) to surface payment failures, latency spikes, and compliance anomalies. Data Platform Management: Manage RDS Aurora PostgreSQL and event streaming (MSK/Kafka) for high-stakes transactional and reconciliation workloads. Reliability & Disaster Recovery: Build automated runbooks, chaos engineering experiments, and load-test harnesses. Maintain and test multi-region disaster recovery scenarios. Mentorship & Cost Engineering: Drive platform cost efficiency and mentor backend engineers on containerization and 12-factor app best practices. Requirements Deep AWS Expertise: Extensive production experience across core compute, networking, storage, and security services. Financial Services Background: Proven track record at a neobank (e.g., Monzo, Revolut), PSP (e.g., Stripe, Adyen, ), or a major bank's infrastructure division. IaC & Containers: Mastery of Terraform at scale and strong experience with Kubernetes (EKS) or ECS operations. Database & Messaging: Experience running RDS/Aurora PostgreSQL for transactional workloads and operating Kafka (MSK) or Kinesis for financial event pipelines. Compliance Literacy: Familiarity with the infrastructure obligations of PCI DSS, SOC 2, or FCA/PRA regulated environments. Operational Maturity: Experience in 24/7 on-call rotations for financial systems with a focus on incident response and post-mortems. Preferred Qualifications: Experience with Solana or EVM blockchain infrastructure, policy-as-code (OPA), or FinOps certifications. Proficiency in Rust, Python, or Go for tooling is a significant plus. Benefits Compensation: $250K - $300K High Impact: Direct ownership of systems reaching hundreds of thousands of users with immediate production impact. Location: This is an in-person role based in London. Environment: A high-intensity, low-bureaucracy culture where performance is rewarded with significant autonomy. Interview Process Recruiter / HR Screening Call Founder / CEO Interview Technical Interview I Technical Interview II Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search. Commitment to Equality and Accessibility At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing . MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd's Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting .

Elliptic has helped trace and disrupt over $21.8 billion in illicit crypto laundered across blockchains, from sanctioned nation states to organized crime networks hiding funds through token swaps and unregulated exchanges. It's how compliance and investigations teams fight back, tracking and screening transactions with 99% market coverage. Elliptic's underlying infrastructure must be as resilient and sharp as the intelligence it delivers. We are looking for a Senior DevOps Engineer with a strong background in DevOps and extensive hands on experience with Kubernetes, someone who thrives on taking ownership, driving initiatives from concept to delivery, making informed decisions, and proactively improving systems and processes. You'll play a key role in shaping our platform strategy, collaborating with talented engineers, and fostering a culture of reliability, security, and efficiency. Impact you will have You will have a transformative impact across Elliptic by evangelising DevOps, security, and reliability principles and fostering a culture of efficiency and autonomy. You will join a growing team of experienced and passionate engineers who are not afraid to fail and enjoy tackling difficult problems head on. What you will do Provide senior DevOps expertise and leadership across Engineering at all layers of the stack Evangelise DevOps, security and reliability engineering across the Engineering team at large Provision resilient infrastructure across multiple regions and AZs Build compliant, reliable and featureful developer platforms centered on container orchestration Enable Continuous Delivery and Deployment capabilities using CICD pipelines and GitOps tooling Enable shifting left on security and testing, and facilitate progressive delivery in production Measure and improve developer productivity and experience across the SDLC Cost optimise infra through rightsizing and creating ephemeral, on demand environments Proactively monitor for security and reliability using Observability tooling including SIEM, APM, tracing, infrastructure metrics, logs and dashboards Durably engineer away toil Great fit Are passionate about DevOps and, Security and Reliability engineering Are passionate about helping engineering teams become high performing teams Are passionate about helping build reliable and performant cloud native applications Act like an owner in every decision you take Take challenges as opportunities Enable our customers to achieve their mission Are open with success, failure and learnings Continuously test, learn and improve Ideal candidate experience Kubernetes container orchestration platform with an understanding of the cluster lifecycle, API, Operator pattern, Helm charts, addons and components from the CNCF landscape Writing Infrastructure as Code using Terraform against AWS, GCP, considering internal and external modularisation, multi environment branching strategies, state manipulation, working to multiple versions Provisioning cloud infrastructure to AWS, GCP, through Kubernetes controllers such as Crossplane, ACK, KRO Building cloud native container and serverless applications in distributed architectures on Kubernetes and Service Meshes such as Istio, Linkerd, App Mesh Writing Helm charts to package and deliver application stacks into production Delivering applications and infrastructure continuously using CI/CD tools such as GitlabCI, CircleCI, Github Actions, and GitOps using ArgoCD, FluxCD Troubleshooting and debugging applications using Observability tooling across microservices and serverless applications such as Splunk, DataDog Managing ephemeral secrets and credentials using Hashicorp Vault Managing least privileged access to cloud resources using TPAM solutions such as Hashicorp Boundary Bonus points Production experience architecting provisioning and testing strategies for multi cluster Kubernetes deployments Development and testing strategies for Terraform for Production Production experience with advanced multi cluster Service Mesh capabilities on Kubernetes Production experience developing Kubernetes Operators Production experience with OSS API Gateways and Ingress controllers Production Software Engineering using a high level language like Go, Java, JavaScript, Python Distributed Software Architecture exposure in high volume production scenarios Working with Data Mesh, BigData technologies such as EMR, Spark, Databricks Designing, tracking and testing to SLOs and Chaos Engineering toError Budgets Implementing Business Continuity (BCP) and Disaster Recovery (DRP) plans including tracking RTO and RPO CryptoCurrency domain knowledge and infrastructure experience running Currency Daemons, integrating provider APIs We know Diversity and Inclusion are much deeper than just hiring, but it's important for us to mention it here. We welcome and embrace individuals of all backgrounds and identities at Elliptic, which is our ongoing priority. We know incredible people don't all think in the same way. We want to be challenged every day. We believe our diverse team of individuals underpins this by bringing creative thinking and innovation to Elliptic every day. We are committed to creating a diverse, inclusive and equitable workplace, so we welcome applications from everyone, even if you may not think you fit all of the requirements of our roles. We foster an environment of psychological safety where everyone feels comfortable bringing their whole self to work. Job Benefits Hybrid working and the option to work from almost anywhere for up to 90 days per year £500 Remote working budget to set up your home office space $1,000 Learning & Development budget to use on anything (agreed with your manager) that contributes to your growth and development Holidays: 25 days of annual leave + bank holidays An extra day for your birthday Enhanced parental leave: we provide eligible employees, regardless of gender or whether they become a parent by birth or adoption, 16 weeks fully paid leave and leave. Private Health Insurance - we use Vitality! Full access to Spill Mental Health Support Life Assurance: we hope you will never need this - but our cover is for 4 times your salary to your beneficiaries £100 Crypto for you! Cycle to Work Scheme

As a Software Engineer II, you will join our London-based engineering team, contributing to the design, development, and delivery of Java, Python and TypeScript-based blockchain applications. Working alongside experienced engineers with decades of Markets expertise, you'll build production-grade blockchain services, learn cutting edge DLT technologies, and help transform the financial ecosystem from the inside. This role offers the opportunity to grow your skills in blockchain and distributed systems while working on high impact projects with direct visibility to business leaders across the industry's leading markets business. Markets Digital Assets focuses on designing and building production grade solutions leveraging Blockchain and Distributed Ledger Technologies (DLT) to transform JPMorgan's CIB Markets business. We partner closely with Front Office, Product, Operations, and core platform teams to deliver secure, scalable, and compliant digital asset capabilities across our private blockchain network, Kinexys Digital Assets, and public blockchains. Job Responsibilities Develop scalable, secure services using Java Spring Boot, TypeScript/NestJS, ReactJS, and Python Contribute to end to end delivery: implementation, testing, CI/CD, deployment, and production support Write clean, maintainable code and participate in code reviews to uphold engineering standards for quality, observability, and performance Collaborate with Front Office, Product, Operations, and platform teams to build and deliver transformative DLT use cases Learn and apply blockchain technologies in a full stack DApps build environment across private and public blockchains Work with enterprise development toolchains including Git, Jenkins, and CI/CD pipelines Engage with senior engineers and architects to understand distributed systems design and best practices Participate in team knowledge sharing, hackathons, and experimentation with emerging technologies Contribute to the team's technical output and help advocate for DLT within the firm Required qualifications, capabilities and skills Hands on software engineering experience with Java Spring Boot/Python or similar modern backend frameworks Understanding of software development fundamentals: data structures, algorithms, object oriented design Experience with version control (Git) and working in collaborative development environments Eagerness to learn distributed systems, blockchain technologies, and cloud native architectures Strong problem solving skills and ability to work effectively in a team Excellent communication and collaboration skills; comfort working with diverse stakeholder groups Familiarity with CI/CD pipelines, automated testing, and DevOps practices Interest in or exposure to blockchain and Distributed Ledger Technologies (DLT) Preferred qualifications, capabilities and skills Familiarity with TypeScript, JavaScript, or front end development (ReactJS or similar frameworks) Experience building on public or permissioned blockchain platforms (e.g., Solana, Ethereum/EVM, Hyperledger, Polkadot, Cosmos, Avalanche, Canton) Understanding of cryptographic protocols, smart contracts, or key management Experience with AWS services and cloud native architectures Interest in front office or trade processing environments within financial services We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation.

Since being founded in 2018, Copper has been building the standard for institutional digital asset infrastructure with a focus on custody, collateral management, and prime services. Led by Amar Kuchinad, Copper's Global CEO, the firm provides a comprehensive suite of custody, trading and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets. At the heart of Copper's offering is Multi-Party Computation (MPC) technology - the gold standard in secure custody. Copper's multi award winning custody system is unique in that it can be connected to centralised exchanges, DeFi applications and even staking pools without the assets leaving the custody. Built on top of this state of the art custody, ClearLoop is the first solution in the market that overcomes a growing industry challenge; counterparty risk with exchanges. This solution underpins a full prime services offering, connecting global exchanges, and enabling customers to trade and settle directly from the safety of their MPC secured wallets. By reducing settlement time for transfers to a few milliseconds (without blockchain network dependency) and offering enhanced security measures, ClearLoop is rapidly reshaping the way asset managers trade and manage capital. In addition to industry leading security certifications, Copper has one of the strongest insurance coverages in the industry from an A+ rated insurer, positioning the firm as the partner of choice for institutions seeking to safeguard their assets. Department/Team Purpose The Engineering department is the backbone of Copper; entrusted with the critical responsibility of building and securing the infrastructure that safeguards billions of dollars in digital assets. We operate at the intersection of traditional institutional finance and decentralized blockchain technology. We believe the best infrastructure comes from curious minds working openly together. Our engineering organisation brings together people with diverse backgrounds and experiences who genuinely enjoy solving hard problems. We foster a blame free, intellectually honest environment where you're encouraged to take thoughtful risks and think big. You'll have the autonomy to own meaningful projects while gaining the support you need to grow your skills and advance your career. Role Purpose We're looking for a Senior DevOps engineer at the intersection of software development and platform engineering. In this role, your focus will be enabling fast, reliable, and secure delivery of our systems, whilst continuously improving how our infrastructure is built and operated, including our blockchain environments. Day to day, you'll tackle platform and deployment challenges through pragmatic engineering and automation. You'll build and operate scalable, self service infrastructure, CI/CD pipelines, and blockchain platforms, including node provisioning, network deployment, and lifecycle management. You'll optimise build and release pipelines, improve system resilience, and ensure 'traditional' and blockchain infrastructure can scale with the needs of the business. You will collaborate closely with engineering and SRE teams, focusing on infrastructure as code, developer experience, and operational scalability across the engineering organisation, with ownership of the reliability and performance of blockchain nodes and supporting systems. Key Responsibilities Building a fault tolerant, geographically distributed infrastructure: support of multiple data centres, providing replication, sharding, auto balancing and failover. Participating in deployment of services with strict availability requirements on a large scale environment and working together with other Engineers to ensure our systems meet current and future demand. Develop and maintain code for automated infrastructure management (DevOps, Infrastructure as Code) with the use of Ansible and Terraform. Working collaboratively with the Backend Engineering team to increase our resilience through insightful systems and application metrics. Improving our CI/CD pipeline to provide new integration vectors. Building and maintaining infrastructure for its own fleet of blockchain nodes (>25 layer 1 protocols now, and more to come). On Call support to ensure 24/7 availability of all systems. Skills and Experience Essential 5+ year's experience as a DevOps Engineer operating production grade infrastructure. Hands on experience running and maintaining blockchain infrastructure (e.g. node deployment, syncing, upgrades, monitoring, and troubleshooting). Strong experience with Infrastructure as Code (e.g. Terraform, CloudFormation) and automated environment provisioning. Strong experience with containerisation and Kubernetes, including production operations and cluster management; EKS preferred. Experience building and operating CI/CD pipelines using GitHub Actions and deployment tools such as ArgoCD. Solid understanding of networking fundamentals (VPCs, routing, load balancing, DNS, firewalls). Experience implementing and operating secure systems (IAM, secrets management, network security controls, vulnerability management). Proficiency with at least one development language (e.g., bash, Python, Go). Strong troubleshooting skills across distributed systems and production environments. Strong problem solving and troubleshooting abilities. Excellent communication and collaboration abilities. Desirable Experience working within crypto organisation. Experience in Financial Services. Benefits Paid Time Off - A minimum of 35 days of paid time off per year, inclusive of annual leave and public holidays. Employees also receive one additional day of annual leave for each year of service. Comprehensive Medical Insurance - Inclusive of dental, optical, audiology, and mental health coverage, with medical history disregarded. Life Insurance. Enhanced Pension Contributions - Includes an enhanced employer matching contribution. 24/7 Employee Assistance Programme (EAP). Copper is an equal opportunity employer. We embrace diversity and equal opportunities in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be. So, bring us your experience, perspectives, and skills. It is in our differences that we will continue to grow and ensure Copper is transforming how institutional investors engage with digital assets. Copper is a Disability Confident Employer, please let us know if you have a disability. If you require us to provide any assistance during the recruitment process, then we would ask you to highlight this to us and we will be happy to accommodate.

Since being founded in 2018, Copper has been building the standard for institutional digital asset infrastructure with a focus on custody, collateral management, and prime services. Led by Amar Kuchinad, Copper's Global CEO, the firm provides a comprehensive suite of custody, trading and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets. At the heart of Copper's offering is Multi-Party Computation (MPC) technology - the gold standard in secure custody. Copper's multi-award winning custody system is unique in that it can be connected to centralised exchanges, DeFi applications and even staking pools without the assets leaving the custody. Built on top of this state of the art custody, ClearLoop is the first solution in the market that overcomes a growing industry challenge; counterparty risk with exchanges. This solution underpins a full prime services offering, connecting global exchanges, and enabling customers to trade and settle directly from the safety of their MPC secured wallets. By reducing settlement time for transfers to a few milliseconds (without blockchain network dependency) and offering enhanced security measures, ClearLoop is rapidly reshaping the way asset managers trade and manage capital. In addition to industry leading security certifications, Copper has one of the strongest insurance coverages in the industry from an A+ rated insurer, positioning the firm as the partner of choice for institutions seeking to safeguard their assets. Department/Team Purpose The Engineering department is the backbone of Copper; entrusted with the critical responsibility of building and securing the infrastructure that safeguards billions of dollars in digital assets. We operate at the intersection of traditional institutional finance and decentralized blockchain technology. We believe the best infrastructure comes from curious minds working openly together. Our engineering organisation brings together people with diverse backgrounds and experiences who genuinely enjoy solving hard problems. We foster a blame free, intellectually honest environment where you're encouraged to take thoughtful risks and think big. You'll have the autonomy to own meaningful projects while gaining the support you need to grow your skills and advance your career. Role Purpose We're looking for a Senior DevOps engineer at the intersection of software development and platform engineering. In this role, your focus will be enabling fast, reliable, and secure delivery of our systems, whilst continuously improving how our infrastructure is built and operated, including our blockchain environments. Day to day, you'll tackle platform and deployment challenges through pragmatic engineering and automation. You'll build and operate scalable, self service infrastructure, CI/CD pipelines, and blockchain platforms, including node provisioning, network deployment, and lifecycle management. You'll optimise build and release pipelines, improve system resilience, and ensure 'traditional' and blockchain infrastructure can scale with the needs of the business. You will collaborate closely with engineering and SRE teams, focusing on infrastructure as code, developer experience, and operational scalability across the engineering organisation, with ownership of the reliability and performance of blockchain nodes and supporting systems. Key Responsibilities Building a fault tolerant, geographically distributed infrastructure: support of multiple data centres, providing replication, sharding, auto balancing and failover. Participating in deployment of services with strict availability requirements on a large scale environment and working together with other Engineers to ensure our systems meet current and future demand. Develop and maintain code for automated infrastructure management (DevOps, Infrastructure as Code) with the use of Ansible and Terraform. Working collaboratively with the Backend Engineering team to increase our resilience through insightful systems and application metrics. Improving our CI/CD pipeline to provide new integration vectors. Building and maintaining infrastructure for its own fleet of blockchain nodes (>25 layer 1 protocols now, and more to come) On Call support to ensure 24/7 availability of all systems. Skills and Experience 5+ year's experience as a DevOps Engineer operating production grade infrastructure. Hands on experience running and maintaining blockchain infrastructure (e.g. node deployment, syncing, upgrades, monitoring, and troubleshooting). Strong experience with Infrastructure as Code (e.g. Terraform, CloudFormation) and automated environment provisioning. Strong experience with containerisation and Kubernetes, including production operations and cluster management; EKS preferred. Experience building and operating CI/CD pipelines using GitHub Actions and deployment tools such as ArgoCD. Solid understanding of networking fundamentals (VPCs, routing, load balancing, DNS, firewalls). Experience implementing and operating secure systems (IAM, secrets management, network security controls, vulnerability management). Proficiency with at least one development language (e.g., bash, Python, Go). Strong troubleshooting skills across distributed systems and production environments. Strong problem solving and troubleshooting abilities. Excellent communication and collaboration abilities. Experience working within crypto organisation. Experience in Financial Services. Why Copper? At Copper, we keep innovation, openness, and curiosity at the centre of everything we do. Here, bold ideas get the spotlight, learning is constant, and diversity shapes our team from the ground up. Jump into a fast moving, dynamic team that loves a challenge and knows how to have fun along the way. Collaboration is just as important as results-you'll be surrounded by smart, driven colleagues in London and across our APAC, Switzerland, UAE, and US offices. Hybrid working model - we believe in the value of bringing people together and at the same time we embrace the adaptability of flexibly working. Diversity and inclusion matter to us - they're woven into Copper life. From employee led groups like Women at Copper to a committee focused on community and wellbeing, you'll have a network that supports you from day one. Everyone's voice matters. If you're looking to ramp up your career, or keen to do something new in your field, with us, you'll keep moving forward. Ready to make your mark, keep growing, and join a supportive, dynamic team? Copper's the place. The interview process at Copper Our interview process is designed to be thoughtful, efficient, and engaging. While specific steps may vary slightly depending on the role, the typical journey includes: Initial Screening A brief conversation with our Talent Acquisition team to explore your background, motivations, and alignment with the role. Technical Interview A virtual session conducted via Microsoft Teams, where you'll engage with team members to discuss relevant skills, problem solving approaches, and technical experience. In Person Interview A conversation focused on team dynamics, collaboration style, and any final technical questions. This may be with cross functional peers or leadership. Additional steps may be added based on the role's complexity or seniority. We aim to keep the process transparent and respectful of your time. Benefits Paid Time Off - A minimum of 35 days of paid time off per year, inclusive of annual leave and public holidays. Employees also receive one additional day of annual leave for each year of service. Comprehensive Medical Insurance - Inclusive of dental, optical, audiology, and mental health coverage, with medical history disregarded. Life Insurance Enhanced Pension Contributions - Includes an enhanced employer matching contribution. 24/7 Employee Assistance Programme (EAP) Copper is an equal opportunity employer. We embrace diversity and equal opportunities in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be. So, bring us your experience, perspectives, and skills. It is in our differences that we will continue to grow and ensure Copper is transforming how institutional investors engage with digital assets. Copper is a Disability Confident Employer, please let us know if you have a disability. If you require us to provide any assistance during the recruitment process, then we would ask you to highlight this to us and we will be happy to accommodate.

You'll be the hands on security engineer embedded with the Institutional Trading and Financial Operations (FinOps) team. Your focus is the secure operation of off chain trading processes and infrastructure that empowers our institutional business: integrations, signing flows, key custody interfaces, middle office workflows, order routing and settle pipelines that handle significant capital. You will support risk assessments, operating controls, automation to detect operational anomalies and remediation coordination. This is a high visibility role where you will focus on operational security engineering-ensuring that the tools and processes our traders use are resilient against both external threats and internal errors. This role does not require smart contract auditing. What You Will Do Partner with Trading, Middle Office and Quant (Institutional FinOps) teams to map out inventory trading systems, data flows, third party integrations and custody/settlement touchpoints. Conduct deep dive assessments mapping critical assets and workflows to identify structural vulnerabilities. You will be responsible for defining the Target State and drafting the strategic Risk Treatment Plans (RTP) required to meet institutional grade standards (e.g., CCSS, NIST, DORA). Act as the primary security liaison for Senior Management and third party vendors. You will translate complex technical gaps into actionable business risk summaries, drive vendor evaluations for core security infrastructure, and manage the project lifecycle for high impact posture uplifts. Implement and maintain monitoring for FinOps specific security signals such as abnormal order patterns, signature misuse, unusual settlements. You will integrate these signals into our SIEM/SOAR for real time response. Support secrets and key management hygiene. You will ensure app/service keys are stored in KMS/Vault, scoped to least privilege and rotated automatically to prevent credential leakage. Assist product security in triage of SAST/SCA findings for FinOps related repositories. You will help implement CI checks and remediation playbooks. Participate in incident exercises, post incident reviews and remediation tracking for trading incidents. Document controls and produce concise risk summaries for FinOps leads and the Security. What You Will Need 5+ years in security engineering, platform security, or application security experience. Proven expertise in Threat Modeling. Ability to perform structured reviews (e.g., STRIDE) of complex data flows and operational processes. Experience with observability and detection tooling (SIEM, logs, metrics) and ability to write basic detection rules. Practical experience with KMS/HSM, secrets management platforms (Vault, 1Password, AWS/GCP KMS), IAM patterns and least privilege. Exceptional ability to translate "Technical Debt" into Business Risk for C suite stakeholders (CFO, CTO, Head of Trading). Ability to raise, read and audit Pull Requests in at least one language used in our stack (TypeScript, Java/Kotlin, Python). Experience conducting technical due diligence and scoping for third party security integrations. Nice to Have Familiarity with trading systems or financial operations (market making, execution, settlement) or close collaboration background with trading/quant teams. Exposure to blockchain on chain concepts (wallets, addresses, transactions) but no requirement to audit contracts. Familiarity with SOC operations, and post incident forensic analysis. Familiarity with SOC2, ISO 27001, or financial audit requirements Any relevant industry certification Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time. You may contact our Data Protection Officer by email at . Your personal data will be processed for the purposes of managing Controller's recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller's behalf. Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses. 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The technical expert who ensures our systems are scalable, secure, and well-architected as we transition to microservices and epithelial infrastructure. 10th February, 2026 Permax Recruitment is working in partnership with a London based firm who are on the lookout for a Software Engineer. For nearly a century, our client has been building a firm as accountants, auditors, tax specialists and close advisors to clients operating in emerging markets, disrupting the status quo. This has accelerated thanks to the blockchain. In 2017, a client asked to help with an ICO and they have been crypto pilled ever since, developing into what is currently the leading professional services firm on chain. In 2023, they opened a new leg of the business to carve out a team dedicated to all things Web3, which is now over 80 strong and servicing near 600 digital asset clients globally. They partner with some of the industry's most influential players-cryptocurrency exchanges, blockchain innovators, Web3 pioneers, and digital asset funds-offering tailored audit, tax, and advisory services that keep pace with this fast evolving landscape. Senior Software Engineer (Cloud Infrastructure & DevOps) Location: London (Three days in office, two days wfh) Salary: Approx £100,000 + Bonus While our team builds data pipelines and reporting tools that enable accountancy teams to work efficiently, this role focuses primarily on managing our AWS infrastructure, supporting the team with robust DevOps practices, and mentoring other developers. You'll be the technical expert who ensures our systems are scalable, secure, and well-architected as we transition to microservices and atheist infrastructure. Key Responsibilities Cloud Infrastructure & DevOps (Primary Focus) Own and manage our AWS infrastructure, acting as the team's cloud platform expert Be one of the leaders in the migration toward microservices and stray architecture Lead in infrastructure as code Establish and maintain CI/CD pipelines for the team's data and application projects Lead the implementation of monitoring, logging, and alerting systems to ensure reliability in our solutions Manage cloud security, IAM policies, and compliance requirements Provide infrastructure support and guidance to team members working on data pipelines and applications Troubleshoot infrastructure and deployment issues Mentor other developers on DevOps practices, cloud architecture, and infrastructure concepts, jointly with other senior members Support and encourage team members in deploying and managing their data pipelines and applications Conduct code and infrastructure reviews Develop and share best practices for cloud-native development Foster a collaborative learning environment within the team Contribute to technical documentation Team Leadership & Mentorship Mentor other developers on DevOps practices, cloud architecture, and infrastructure concepts, jointly with other senior members Support and encourage team members in deploying and managing their data pipelines and applications Conduct code and infrastructure reviews Develop and share best practices for cloud-native development Foster a collaborative learning environment within the team Contribute to technical documentation Collaboration & Technical Enablement Enable the team to build and deploy data pipelines efficiently by providing templates and guidance on infrastructure Work with colleagues to understand their infrastructure needs and provide solutions Translate infrastructure requirements into scalable, maintainable solutions Communicate technical concepts clearly to both technical and non-technical stakeholders Collaborate with accountancy teams to ensure data platform reliability and performance Technical 5+ years of software engineering experience with a significant cloud infrastructure focus Understanding of networking, security, and cloud best practices Hands on experience with AWS services Proficiency with infrastructure as code tools Experience designing and implementing CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins, or similar) Solid understanding of containerization and orchestration (Docker, Kubernetes, ECS) Experience with monitoring and observability tools (CloudWatch, Datadog, Prometheus, or similar) Proficiency in bash Experience supporting development teams with infrastructure and deployment needs Knowledge of microservices architecture and serverless patterns Leadership Experience working in teams outside the realm of Software Engineering Demonstrated experience mentoring or managing junior Engineers Strong communication skills with both technical and non-technical audiences Ability to provide clear technical guidance and support Pragmatic approach to balancing technical delivery with business needs Desirable Python experience for infrastructure automation and tooling Familiarity with data pipeline infrastructure (supporting ETL workloads, data warehousing) Experience with data governance and compliance requirements Cloud cost and resource utilisation optimisation Experience migrating from monolithic to microservice architectures What We Offer Opportunity to shape and own the technical infrastructure Small, collaborative team environment where your expertise will have a direct impact Opportunity to create and develop solutions that are new, be impactful Dress for your diary. Flexible working hours. A technology enabled firm. A Family environment, fantastic retention, hiring due to exceptional growth and internal promotions. A Fixed profit sharing bonus scheme payable to all staff. Brand new central London office. Plenty of socialising opportunities. Free breakfast and fresh fruit provided daily.

As a Software Engineer II, you will join our London-based engineering team, contributing to the design, development, and delivery of Java, Python and TypeScript-based blockchain applications. Working alongside experienced engineers with decades of Markets expertise, you'll build production-grade blockchain services, learn cutting-edge DLT technologies, and help transform the financial ecosystem from the inside. This role offers the opportunity to grow your skills in blockchain and distributed systems while working on high-impact projects with direct visibility to business leaders across the industry's leading markets business. Markets Digital Assets focuses on designing and building production-grade solutions leveraging Blockchain and Distributed Ledger Technologies (DLT) to transform JPMorgan's CIB Markets business. We partner closely with Front Office, Product, Operations, and core platform teams to deliver secure, scalable, and compliant digital asset capabilities across our private blockchain network, Kinexys Digital Assets, and public blockchains. Job Responsibilities Develop scalable, secure services using Java Spring Boot, TypeScript/NestJS, ReactJS, and Python Contribute to end-to-end delivery: implementation, testing, CI/CD, deployment, and production support Write clean, maintainable code and participate in code reviews to uphold engineering standards for quality, observability, and performance Collaborate with Front Office, Product, Operations, and platform teams to build and deliver transformative DLT use cases Learn and apply blockchain technologies in a full-stack DApps build environment across private and public blockchains Work with enterprise development toolchains including Git, Jenkins, and CI/CD pipelines Engage with senior engineers and architects to understand distributed systems design and best practices Participate in team knowledge-sharing, hackathons, and experimentation with emerging technologies Contribute to the team's technical output and help advocate for DLT within the firm Required qualifications, capabilities and skills Hands on software engineering experience with Java Spring Boot/Python or similar modern backend frameworks Understanding of software development fundamentals: data structures, algorithms, object oriented design Experience with version control (Git) and working in collaborative development environments Eagerness to learn distributed systems, blockchain technologies, and cloud native architectures Strong problem solving skills and ability to work effectively in a team Excellent communication and collaboration skills; comfort working with diverse stakeholder groups Familiarity with CI/CD pipelines, automated testing, and DevOps practices Interest in or exposure to blockchain and Distributed Ledger Technologies (DLT) Preferred qualifications, capabilities and skills Familiarity with TypeScript, JavaScript, or front end development (ReactJS or similar frameworks) Experience building on public or permissioned blockchain platforms (e.g., Solana, Ethereum/EVM, Hyperledger, Polkadot, Cosmos, Avalanche, Canton) Understanding of cryptographic protocols, smart contracts, or key management Experience with AWS services and cloud native architectures Interest in front office or trade processing environments within financial services

About Us In partnership with one of the largest financial conglomerates, we aim to bring the majority of Japanese equities on chain, creating a secure, transparent, and high performance trading infrastructure that can support institutional volumes while remaining accessible to retail participants. We are building a next generation decentralized exchange with a fully on chain order book. Our system is built with a custom state transition function and consensus layer, purpose designed for high performance, low latency trading. The goal is to deliver a trustless platform that matches the speed and efficiency of traditional trading engines while providing full transparency by running execution as close as possible to the blockchain itself. Position Overview We are looking for a Senior Rust Engineer with strong expertise in system architecture and execution engines. You will be responsible for designing and implementing the CLOB execution layer, including the order book, matching engine, and blockchain client logic. This role is highly technical and requires end to end ownership of critical components, from architecture to optimization. While you'll primarily collaborate with a remote team of experienced engineers, there will occasionally be opportunities to work onsite during off site sessions to support onboarding and enable more efficient collaboration. Joining at this early stage of development offers a unique opportunity to influence critical technical decisions, achieve career growth, and enjoy competitive compensation. Key Responsibilities Architect and implement the on chain order book and matching engine in Rust. Design and extend exchange specific logic (order execution, risk checks, account/state management). Design and develop protocol level components, such as state transition logic, consensus, validator interaction, and transaction processing pipelines. Implement integration with oracles, bridges, and external data providers, ensuring correctness and resilience in adversarial conditions. Optimize for low latency execution, concurrency, and gas efficiency. Conduct benchmarking and stress testing to identify and address potential performance/throughput bottlenecks. Develop and maintain a comprehensive suite of unit, integration, and end to end tests to ensure code reliability and functionality. Requirements 5+ years of systems programming experience, with 3+ years in Rust. Proven track record building trading platforms, execution engines, or exchanges (DEX or centralized). Contributions to Rust based L1 protocol projects (e.g., Solana, Cosmos SDK, Substrate). Deep understanding of distributed computing principles, including consensus algorithms, peer to peer (P2P) networking, and high performance data structures. Deep knowledge of decentralized trading models (on chain order books, AMMs, hybrid architectures). Ability to design and implement complex, production grade systems independently. Big Bonus Experience with competitive programming or algorithmic problem solving. Expertise in low latency design, concurrency, and performance optimization. Hiring Blog You can find a related interview blog: