SLAMcore

SLAMcore is seeking a Webflow Developer / Front-End Engineer in Greater London to create high-performance experiences on the marketing site. Responsibilities include building components in Webflow, implementing JavaScript functionality, and supporting technical SEO systems. A strong background in Webflow, HTML, CSS, and JavaScript is essential, along with knowledge of technical SEO principles. This is a unique opportunity to grow within a fast-paced AI company, offering a blend of front-end engineering and backend tooling.

SLAMcore is on the lookout for a highly skilled Mid-weight Designer to enhance our Customer Services Content Creation Team. This role focuses on empowering users to create professional video content flexibly, without the need for traditional equipment. You will lead projects from concept to delivery while collaborating closely with internal teams to maintain a cohesive brand identity. Candidates should possess 4+ years of design experience with a stellar portfolio showing a passion for motion graphics, branding, and typography. A hybrid work model is offered at our Oxford Circus location.

Our everyday digital experiences are in the midst of a realtime revolution. Whether chatting alongside a livestreaming event, receiving realtime financial information, or working with colleagues in an online collaborative environment - consumers simply expect realtime digital experiences as standard. At Ably we're not just witnessing this revolution, we're powering it - at scale. At the heart of our mission lies a commitment to putting developers first. Ably provides a suite of products to build, extend, and deliver powerful digital experiences in realtime, delivering billions of messages for millions of devices every day and supporting organizations like Harness, EA, Panasonic and HubSpot. Working at Ably means helping to build the infrastructure and technology that will power and shape the future of the internet. The opportunity in front of us is immense. And we'd like your help. About this role Thousands of developers around the world use Ably's SDKs and APIs to power realtime features in their applications. The Developer Experience team is responsible for ensuring that Ably is a platform that exemplifies great developer experience, and is a reference point that other companies aspire to. As our Senior Developer Experience Writer, you'll be contributing directly to this goal; helping developers to quickly understand Ably, build confidently and ultimately succeed with the platform. At its core, this is an AI-focussed role; you'll be in charge of setting up the foundations that empower engineers to produce first-class developer documentation with AI at scale. You'll use AI to automate checks, maintain quality, and allow for rapid iteration in the content itself, as well as in the documentation platform. You'll still be setting the standards for technical content across the business, and using your expertise to shape the information architecture. This is a modern take on technical writing; you'll be using AI to both increase your own output, whilst also increasing the velocity of other contributors. The same core values still apply though - ensuring that users can quickly understand and succeed with Ably. Day to day you will Use AI to produce quality content. You'll write reusable prompts and skills that docs contributors can use to ensure their content meets Ably's quality standards. Define and uphold content standards. You'll help define what great looks like; from docs structure and style to making sure that PRs are always exceeding standards. You'll leverage AI to check for technical accuracy, and make sure that content always assists developers in learning and succeeding with Ably in the fastest and easiest ways possible. Build engaging educational content templates. You'll lead by example by producing reference content that others can use as a pattern to write similar content. This will be in the format of templates and skills that team members can leverage. Empower engineers to write great content. You'll coach and support engineering contributors to ensure that they're always producing accurate, well-structured, developer-friendly content. Champion effective AI use. You'll promote the use of AI for efficiency, while maintaining a sharp eye for quality ensuring content meets editorial standards, is technically accurate, and is free from AI-generated patterns that undermine trust or clarity. Maintain and elevate the docs platform. You'll take responsibility for shaping the documentation platform's components, structure and tooling. This includes making sure content is logically structured, and easily navigable, and that it helps external developers understand Ably in new and exciting ways. We'd love to talk if you have Proven success creating technical content for developers, such as documentation, API references and guides; with a portfolio that others have visibly learned from. Experience reviewing and giving feedback on technical writing, with the ability to coach others to improve their craft. Experience and a desire to work in an AI-forward environment. Experience in automation, working with agents and producing quality content at scale is a bonus. Experience of using AI tools as a core part of your workflow for writing, research and coding, as well as understanding their output and limitations. Familiarity with APIs, SDKs, and modern web development tools, with the ability to read, write and reason about code examples in at least one programming language (ideally JavaScript). Strong instincts for developer experience, particularly around onboarding, and a genuine desire to produce experiences that delight developers. A proactive, self-directed mindset with the ability to take ownership of projects end to end, from ideation through to completion. Experience at a startup or growth-stage company, or the adaptability to thrive in a fast-paced, agile environment with a focus on rapid iteration, with excellent communication and cross-functional collaboration skills. Bonus points if you have Experience in maintaining and shaping a documentation platform or developer portal. Familiarity with information architecture principles and content strategy. Familiarity with git-driven workflows for managing content changes. Some knowledge or understanding of event-driven architecture. What's it like to work at Ably? We're tackling planet-scale problems and our ambitions are a testament to that. You'll join a successful, deeply motivated and collaborative team that thrives on innovation, experimentation and autonomy. We believe in fostering a culture that's built on inclusivity and mutual respect among all team members, and we recognise that each individual is different and will want to be supported in their role in different ways. We provide a range of perks and benefits to aid folks' development and wellbeing, allowing them to be their best selves and do great work. A remote-first and flexible work environment. UK-based teams come together in person once per month in our London hub (next to Old Street) and we get together as a company twice per year. Aside from that, you're welcome to work wherever suits best for you. Equity. We're a growing start-up and we want all team to members to share in the success of the company through our EMI share options programme. Enhanced holiday allowance. Our policy provides Ablyans with 28 days of paid annual leave (27 regular days, plus a day off to enjoy your birthday). Enhanced parental leave package, so that you can take the time you need to get to know your new family member, rest and recover. Home workstation budget of £500 on joining (and £150 p/a thereafter), so that your home office is set up to serve you well and that you have everything you need to work comfortably. Personal learning and development budget of £1000 annually, and 5% L&D time during working hours to focus on improving your skillset. Private healthcare with BUPA. Medical cash plan to cover a range medical and dental costs. Mental wellbeing coaching and counselling from Self Space. Monthly wellbeing budget via Juno. Life assurance and income protection. Access to Tech & Cycle to Work schemes. Weekly snack allowance for our end-of-week "Need To Know" meeting. A fully-paid one-month sabbatical after five years with Ably. Diversity, Inclusion & Belonging at Ably We believe our differences as individuals is what makes us great. Our people are at the heart of what we do, and we encourage everyone to be their most authentic self at Ably: we see inclusivity and openness as fundamental to creating long-term success as an organization. We encourage applications from all backgrounds regardless of age, disability, gender, sexual orientation, parental status, race, religion, educational background or neurodiversity. Ably has an amazing opportunity ahead of us, and we want anyone to be able to contribute to that opportunity.

SLAMcore is looking for a Senior Developer Experience Writer in Greater London to enhance developer documentation using AI. In this role, you'll ensure that technical standards are met and empower engineers to create quality content. Ideal candidates will have significant experience in technical writing for developers, familiarity with APIs and SDKs, and a proactive mindset. We offer a remote-first flexible work environment, equity options, and an extensive benefits package.

Our everyday digital experiences are in the midst of a realtime revolution. Whether chatting alongside a livestreaming event, receiving realtime financial information, or working with colleagues in an online collaborative environment - consumers simply expect realtime digital experiences as standard. At Ably we're not just witnessing this revolution, we're powering it - at scale. At the heart of our mission lies a commitment to putting developers first. Ably provides a suite of products to build, extend, and deliver powerful digital experiences in realtime, delivering billions of messages for millions of devices every day and supporting organizations like Harness, EA, Panasonic and HubSpot. Working at Ably means helping to build the infrastructure and technology that will power and shape the future of the internet. The opportunity in front of us is immense. And we'd like your help. About this role As a Technical Product Manager at Ably, your role sits at the nexus of technology, customer needs and market opportunity. It is not a traditional product management position; we're looking for someone who thinks like a developer and wants to build tools for developers like themselves. You'll blend deep technical and architectural expertise with an ability to take new products to market successfully, and obsess about building a world-class developer experience. You'll become an expert in our market, our platform and most importantly, our users. You'll own the strategy, roadmap and ultimate success of your product areas, turning complex problems into developer-centric solutions. Day to day you will Lead a visionary product strategy. You'll partner with our founders, senior management and engineering leadership to build and deliver a successful strategy for your product areas. You'll own the lifecycle of key products and features from initial conception through to commercial strategy and go-to-market execution. Drive product adoption. You'll work cross-functionally with Sales and Marketing teams to translate Ably's technical capabilities into clear value propositions and successful launches. It's about making sure products don't just ship, but thrive in the market. Immerse yourself in the developer community. You'll dedicate significant time to speaking directly with developers, building a deep knowledge base of customer feedback to help prioritise and inform your product roadmap. Guide engineering outcomes. You'll operate as a peer to our tech leads, articulating clear problem statements and UX wireframes or API scaffolding where appropriate. You'll help the team navigate technical trade-offs without compromising on quality. Elevate the developer experience. You'll obsess about building end-to-end experiences that delight developers. Your goal is to design tools that are so intuitive and powerful they turn developers into advocates. Harness data and insights to fuel innovation. You'll define and analyse product metrics, and feed learnings back into the development process. We'd love to talk if you have Proven experience managing early-stage technical B2B SaaS or API-first products, with a track record of driving technical improvements and commercial outcomes. A background in software engineering and an understanding of modern web technologies and associated ecosystems. You must have the ability to write code in at least one modern language to build prototypes that use our APIs. Experience using developer tools. You should have a favorite text editor, be familiar with composing CLI tools, and be the first user of the products you're shipping. A developer-first instinct and a natural empathy for your users. You understand API design, documentation and the things that differentiate the developer journey. Experience at a startup or growth-stage company or adaptability to thrive in a fast-paced, agile environment with a focus on rapid iteration. It would be great (but not essential) if you have Experience building or managing Chat APIs or real-time messaging and communication platforms. Experience delivering solutions used by developers (developer tools or APIs), or closely related solutions for other technical personas (e.g. DevOps, cloud infrastructure etc.). An understanding of pub/sub and familiarity with distributed systems and event based architectures. What's it like to work at Ably? We're tackling planet-scale problems and our ambitions are a testament to that. You'll join a successful, deeply motivated and collaborative team that thrives on innovation, experimentation and autonomy. To get a sense of life at Ably, visit our careers page. You can also read about the origins of Ably's core values on our blog. We believe in fostering a culture that's built on inclusivity and mutual respect among all team members, and we recognise that each individual is different and will want to be supported in their role in different ways. We provide a range of perks and benefits to aid folks' development and wellbeing, allowing them to be their best selves and do great work. A remote-first and flexible work environment. UK-based teams come together in person once per month in our London hub (next to Old Street) and we get together as a company twice per year. Aside from that, you're welcome to work wherever suits best for you. Equity. We're a growing start-up and we want all team to members to share in the success of the company through our EMI share options programme. Enhanced holiday allowance. Our policy provides Ablyans with 28 days of paid annual leave (27 regular days, plus a day off to enjoy your birthday). Enhanced parental leave package, so that you can take the time you need to get to know your new family member, rest and recover. Home workstation budget of £500 on joining (and £150 p/a thereafter), so that your home office is set up to serve you well and that you have everything you need to work comfortably. Personal learning and development budget of £1000 annually, and 5% L&D time during working hours to focus on improving your skillset. Private healthcare with BUPA. Medical cash plan to cover a range medical and dental costs. Mental wellbeing coaching and counselling from Self Space. Monthly wellbeing budget via Juno. Life assurance and income protection. Access to Tech & Cycle to Work schemes. Weekly snack allowance for our end-of-week "Need To Know" meeting. A fully-paid one-month sabbatical after five years with Ably. Diversity, Inclusion & Belonging at Ably We believe our differences as individuals is what makes us great. Our people are at the heart of what we do, and we encourage everyone to be their most authentic self at Ably: we see inclusivity and openness as fundamental to creating long-term success as an organization. We encourage applications from all backgrounds regardless of age, disability, gender, sexual orientation, parental status, race, religion, educational background or neurodiversity. Ably has an amazing opportunity ahead of us, and we want anyone to be able to contribute to that opportunity.

Cloudsmith is seeking a Software Engineer to join the Artifact Engine team, focusing on core package formats, provenance, signatures, verification, and security scanning. You will work across a fast-growing, globally distributed organization with a strong emphasis on delivering customer value and high-quality software. The role offers remote-friendly work with opportunities to collaborate across tribes, impact security and performance, and grow within a Series B startup environment.

TL;DR: We're seeking an engineer who is passionate about their craft, has a bias for action, a focus on delivering customer value and low ego. If that's you, you'll find a bunch of like-minded people at Cloudsmith. About Cloudsmith Cloudsmith is building the operating system for the modern software supply chain. We run a global, fully managed, multi-tenant SaaS platform that helps organizations, from startups to the Fortune 500, secure, govern, and distribute software artifacts at scale. Worldwide, our customers use Cloudsmith as a critical infrastructure control plane for CI/CD, developer workflows, security controls, compliance, and software distribution, supporting 30+ formats and ecosystems across languages, containers, and operating systems. We recently raised our Series C to accelerate Cloudsmith 2.0: deeper artifact intelligence, stronger policy and provenance, faster package-aware delivery, and infrastructure built for engineering teams, as well as the modern AI-driven software factory. By developers, for developers: we care about craft, architecture, and enterprise scale. The Role Are you passionate about building high-quality software? Are you looking for a challenge that will broaden your learning, working with a wide and growing variety of technologies? Do you thrive in fast-paced, fast-growing environments? If so, there's a great opportunity waiting for you as a Software Engineer here at Cloudsmith! The engineering organization is made up of multiple tribes responsible for building application capabilities that deliver value to our customers and the underlying platform on which Cloudsmith is founded. We operate in a highly collaborative environment where people with different skills come together to make things happen. We have a good approach to CI/CD, and we support a global set of customers who are developers like us. This position is in the Artifact Engine team (aka Bytebusters), who are focused on the core of what Cloudsmith is known for - everything to do with package formats, upstreams, provenance, signatures and verification, and security scanning. We play a mission-critical role aligned with one of Cloudsmith's key value props: gain complete control over every package, container, and software asset used across your business. Key Responsibilities Own the design and delivery of complex features and APIs end-to-end, from technical design through to production and operational support Help keep our systems fast, reliable, and running smoothly at global scale. Work closely with teammates from product, design, and customer success to solve problems together. Put quality, reliability, performance and security first through testing, monitoring, and good engineering habits Share your knowledge - whether that's through code reviews, docs, or mentoring others. Required Experience, Qualities & Skills We realise that not everyone will have every experience and expertise in every possible thing. Still, if you have many of the following, we might be a great place to progress your career. 5+ years of professional experience in building, testing, deploying, debugging, and maintaining complex systems in production environments; or equivalent experience in open-source ecosystems and projects A track record of owning significant technical projects end-to-end, from design/RFC through delivery and operating the result in production Proficiency with programming languages such as Python (Django), Golang, Rust, or similar, with the depth to make sound design decisions Familiarity with UNIX-like systems (Linux/WSL/MacOS) Familiarity with container runtimes and orchestration Familiarity with cloud-based infrastructure, data structures & algorithms, storage systems, source control, and continuous integration Eagerness to continuously learn the latest technologies and expand your technical capabilities; not afraid to admit what you don't know You understand the importance of shipping early and often and delivering iteratively You've thrived in a fully remote asynchronous environment An enthusiastic and effective communicator (using English): you should be able to appeal to and communicate with both technical and non-technical listeners alike Deeply passionate about your craft: we deeply care that you care Benefits, Location & Work Environment Note: You must be based in Ireland or the United Kingdom and have the right to work independently without requiring sponsorship. Headlines A position based in Ireland or the United Kingdom or the USA. A competitive compensation package, including equity. With comprehensive health, dental, and vision insurance. Plus, generous annual leave and flexible working policies to suit your lifestyle. Including a professional development budget for conferences and training. In a dynamic, innovative, trust-centric, and supportive work environment. With the opportunity to shape a fast-growing Series B startup (and beyond). Regular (monthly-ish) travel may be required for team meetings. Regular (quarterly-ish) travel may also be required for events and customers. Health and Wellness Regardless of your location, we deeply care about the health and wellness of our staff and their families; a sustainable pace is important to us. In addition to generous annual leave (PTO), we offer health and wellbeing benefits along with flexible family-friendly working policies. Personal Growth You will have an enormous opportunity to learn new skills alongside your colleagues, and your continued professional development is essential to us because it's important to you. We will support you with budgets for equipment, training, books, conferences, travel, and certifications. The more powerful you become, the better for all of us. Facilities Cloudsmith is headquartered in Belfast, Northern Ireland, with fully-equipped office space that's open 24x7. We use our H.Q. regularly for activities like working sessions, team planning, meets and greets, and sometimes other group activities (like games!). We also hold all-hands offsites in Belfast thrice yearly, with guest speakers and team activities. Many Cloudsmithers work remotely, so we rely on our online collaboration tools; Slack, Google Docs, Linear, and other popular collaboration tools are how we work. About Equal Opportunity Cloudsmith is an equal-opportunity employer proud to nurture a diverse workplace that welcomes applications from individuals of all races, genders, and ethnic groups. We do not discriminate on age, religion, sexual orientation, citizenship status, military service, or health conditions. We will not tolerate discrimination of any kind within our workforce. The Final Word We're looking for someone who has a passion for their craft, a scrappy attitude, a desire to build a product customers love, and is fearless in rolling up their sleeves when needed. We're critical infrastructure by developers / for developers and building the world's software supply chain platform and ecosystem. We want to hear from you if you're excited to build a category-defining product, with a lasting impact on the software industry from today until IPO and beyond.

Copper is seeking a Cloud Infrastructure Engineer in London to own key infrastructure components, drive cloud architecture initiatives, and mentor junior team members. You will collaborate with DevOps, Engineering, and Service Delivery to deliver secure, scalable platforms. The role emphasizes ownership of infrastructure projects, cross-team collaboration, and a thoughtful approach to incident response and security within a hybrid work model.

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 Overview Technology Operations is responsible for the management and technical support of our corporate and product platforms and infrastructure. We play a critical role guiding and supporting the engineering functions to deliver critical strategic technology initiatives, programs, and large projects across the division. We provide major incident management and empower the business and engineering functions with the data and insights they need to make critical infrastructure decisions. Team Purpose Infrastructure Engineers in the Level 2 support team bridge the gap between first line support team and the other engineering and management teams. Managing the platforms they cover, providing an escalation point for support and improving the services provided for our end users. Role Purpose As a Cloud Infrastructure Engineer, you'll take ownership of key infrastructure components, lead technology estate management, and drive cloud architecture initiatives. You'll mentor junior team members, contribute to strategic projects, and collaborate across IT. Core Responsibilities Manage a virtual Apple or Windows estates (AWS / AZURE etc) Design/Build/Support automation solutions. Design and implement cloud infrastructure Build secure environments (e.g., Bastion access, VDI redesign). Lead systems integration efforts across SaaS platforms. Support incident response and root cause analysis. Mentor junior engineers and contribute to team knowledge sharing Essential Skills and Experience Advanced proficiency in Endpoint Management (Jamf Pro, Intune). Strong scripting and automation skills in Python, Bash, and IaC tools. Solid experience with cloud infrastructure (AWS, Azure), including VMs, networking, and IAM. Proven ability to design and implement secure environments (e.g., Bastion, VDI). Experience with systems integration (Slack, Teams, Atlassian, etc.). Familiarity with monitoring and logging tools. Understanding of patching, OS upgrades, and endpoint lifecycle management. Problem Solving: Proactively identifies issues and proposes effective solutions. Mentorship: Supports junior engineers through coaching and knowledge sharing. Cross-Team Collaboration: Works effectively with DevOps, Engineering, and Service Delivery teams. Project Ownership: Leads infrastructure projects with minimal supervision. Adaptability: Comfortable navigating ambiguity and shifting priorities. 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 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 In return for everything you can bring to Copper, we can offer you an exciting, challenging role in a fast-growing and dynamic business, with career opportunities and welcoming working environment. Some of our key UK benefits are highlighted below: 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) If you think you have everything we're looking for and more, then we'd love you to apply for the opportunity. 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.

Beam is seeking a Quality & Regulatory Affairs Lead - Digital Health to own clinical compliance and regulation across healthcare products. You will drive Class IIa medical device certification and manage relationships with MHRA and DHSC while shaping the healthcare product roadmap with the PM and product teams. You'll be the go-to expert on regulatory strategy, build out the QMS, and guide the team through clinical evaluations.

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 Copper provides institutional digital asset custody, settlement, and collateral management services across a wide range of blockchains and integrated venues. Information Security protects the firm's platforms, client assets, and regulated entities across the group. Role Purpose The Principal Security Architect is the senior technical authority for security architecture at Copper. The role reports to the CISO and partners closely with Engineering. The holder sets architectural direction, reviews and approves designs for major change, and acts as the firm's reference point on the security of the systems, protocols, and integrations Copper depends on. The role is predominantly architecture and assurance, with limited hands on solution design in the cloud and integration space where reference patterns are needed. Key Responsibilities Architectural authority Hold formal security sign off authority for major changes to Copper's platforms, infrastructure, and integrations. Shape and maintain the security architecture patterns, principles, and reference designs that engineering teams build against. Provide the senior technical security position in architectural and business decisions, including escalations where security and delivery pressures conflict. Custody, signing, and cryptographic architecture Provide architectural security leadership over Copper's signing infrastructure, working alongside specialist engineering and cryptography teams. Scope covers the people, process, and operational design around MPC based signing. Solid conceptual grounding in threshold cryptography and signature schemes is required; cryptographer level work is not. Review and approve changes to transaction construction, signing flows, approval policy, and key lifecycle operations. Provide architectural assurance over chain of trust constructs adjacent to custody, including verifiable build pipelines, hardware backed code signing, and authenticator bound administrative paths. Multi chain and integration security Reason at architectural depth across the range of blockchains Copper supports, including EVM, UTXO, and account based non EVM families. This requires a working understanding of transaction construction, signing semantics, consensus assumptions, and validator and staking models across these environments, without being a protocol engineer in any of them. Assess third party smart contract architectures, implementations, and audit reports to a level sufficient to understand the exploit and risk surface, without performing line by line code review. Review first party integrations with partner networks, including those underpinning staking and similar on chain participation, and form a defensible security position on the operational and contract risk Copper inherits. Settlement, collateral, and off exchange architecture Provide architectural ownership of the security model for Copper's settlement, collateral mirroring, and off exchange product surfaces. Reason about the trust boundaries between Copper, venues, and clients, and ensure architectural controls match the obligations each side carries. Identity and access architecture Own identity and access architecture as a dedicated pillar of the role. Set patterns for workforce, workload, and third party identity across Entra ID, federated SSO, OAuth2 / OIDC, SAML, and modern authenticators. Govern entitlement design, privileged access, and access models for contractors, vendors, and external operators. Cloud and platform security Maintain working architectural fluency in both AWS and Azure, including network topology, segmentation, secrets handling, and platform telemetry. Produce reference patterns and, where needed, direct integration designs in the cloud and platform space. Third party and protocol risk Lead technical security review of vendors, integrated venues, and protocols, including challenge of assurances that do not stand up to scrutiny. Support client and counterparty due diligence on the technical content most likely to be misrepresented or under specified. Policy, regulatory, and assurance support Maintain a working understanding of the regulatory regimes applicable to Copper's licensed entities sufficient to translate architectural decisions into language Compliance and GRC can defend. Primary ownership of regulatory positioning sits elsewhere. Contribute to security policy, standards, and control framework development as the senior technical reviewer. Participate in resilience exercises and incident reviews where architectural input materially shapes the outcome. Skills and Experience Essential Multi chain architectural literacy. Able to reason across EVM, UTXO, and non EVM account based chains at the level of transaction construction, signing, consensus, and validator models. Comfortable assessing third party smart contract designs, implementations, and audit reports for exploit and risk surface without performing code review. Custody and signing architecture. Strong conceptual grasp of threshold signing, signature schemes, and key lifecycle. Able to design and challenge the operational architecture around signing, separation of duties, approval policy, key ceremony equivalents in MPC, and recovery, to a high standard. Settlement and collateral architecture. Demonstrable experience reasoning about settlement, collateral, and off exchange constructs, including trust boundaries between custodians, venues, and clients. Identity and access architecture. Senior level experience designing and governing identity across Entra ID, federated SSO, OAuth2 / OIDC, SAML, and modern authenticators. Comfortable with entitlement governance and third party access design. Cloud security. Working architectural understanding of AWS and Azure, including the ability to produce reference patterns and limited direct integration designs. Architectural authority and judgement. Track record of holding sign off on significant designs, taking defensible positions under uncertainty, and owning residual risk. Change review and assurance. Comfortable reviewing the work of engineering peers, infrastructure changes, and vendor designs, and able to hold the line where it matters. Communication. Able to operate credibly with engineers, senior business stakeholders, auditors, and regulators in the same week, without losing precision at any of them. Desirable Familiarity with chain of trust constructs including verifiable builds, reproducible build pipelines, and hardware backed code signing. Awareness of the regulatory landscape relevant to digital asset custody and trading (for example FCA, FINMA, FSRA / ADGM, MiCA). Compliance familiarity across ISO 27001, SOC 2, and NIST CSF / , with the ability to map controls cleanly between them. Enterprise architecture grounding (TOGAF, SABSA) where it complements rather than replaces technical depth. 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 voice matters. If you're looking to ramp up your career . click apply for full job details

SLAMcore is seeking a Principal Security Architect to lead architectural security strategies focused on digital asset management. You will guide and review essential changes while setting the systems' security direction in a dynamic environment. The role balances broad architectural responsibility with hands-on leadership, requiring multi-chain expertise and collaboration across teams. A hybrid working model fosters innovation and teamwork while offering extensive benefits including paid time off and comprehensive medical coverage.

The opportunity Recycleye and CPG are building a team to provide data analytics and actionable insights to a waste facility operator. There are near Infrared sorters (NIR), balers, AI powered airjets, AI robots, mechanical screens, and many different types of machines in a waste facility. The waste that comes in is varied on a daily, hourly, minute basis. The machines and plant can be configured in thousands of ways to sort the material, changing conveyor speeds, sorter settings, and coming up with complex business logic to match output to material pricing and revenue. This is an exciting opportunity to join the team to help push the boundaries of material sorting in waste facilities - understand the data, present to a team of experts, and develop models to automate and optimise throughput, revenue, and material output purity. If you ever wanted to make a difference in the world of recycling this is it! Responsibilities Overview Track, measure, analyse billions of rows of time series data from a waste facility. Motors, sorters, AI cameras, etc. Develop methods to link, simplify, clean/noise the data and visualise in clear graphics/analytics for a non technical audience (experts first, waste operators second) to understand and action. Develop plant level understanding - from the data. Translate data into logical rules or first principles for improved understanding. Build statistical models detect anomalies and optimise plant output, revenue, etc. and test them. Understand the trade offs. A/B test different plant setups based on optimisation algorithms, measure output and iterate. Develop scoring functions, feedback loops, and quantitative metrics to compare results against. Requirements A background in data analytics and statistical modelling from data. Ability to write high quality production level code (we use Python), mathematical models, statistical simulations. Advanced SQL skills. Comfortable with getting hands on in large scale physical systems. Going into waste facilities to deeply understand processes, flow of material, the gap between physical and virtual world. Experienced in data visualisation. Practical - ability to get into the customer shoes and solve trivial breakdown or other problems before complex optimisation. Ability to travel (to the US) up 1 2 weeks a quarter. It's a bonus if you have Experience in Reinforcement Learning or similar optimisation techniques. Machine learning experience. Computer vision experience - especially object detection models. Experienced with large datasets - billions of rows. Time series data experience. Anomaly detection.

SLAMcore in Greater London is seeking a data analyst to join their team, focusing on providing actionable insights to enhance waste management processes. Your role will involve analyzing billions of rows of data, developing statistical models, and creating visualizations to facilitate decision-making. The ideal candidate will have strong coding skills in Python and SQL, as well as a background in data analytics. Experience in optimization and data visualization is preferred. This position offers the chance to make a meaningful impact in the recycling sector.

SLAMcore is seeking a full-time Software Engineer to drive end-to-end product features across the Avatars and Generative Media domain. You will be pivotal in designing and delivering features incorporating frontend, backend, and AI capabilities, allowing users to create and customize avatars seamlessly. This role demands a strong product mindset, enabling you to tackle ambiguous problems and determine the best paths forward. You will also work in a collaborative environment, enhancing user experience by deploying features based on real-world usage and feedback.

SLAMcore is seeking a Technical Leader for backend infrastructure development for AI agents. You will own the model serving infrastructure, ensuring reliability and low latency while collaborating with product teams and R&D. This full-time role, located in the UK, involves leading a team of engineers with opportunities for career growth into management tracks. Benefits include 25 days of leave and the possibility to work remotely within Europe.

Synthesia is hiring a Full-Stack Developer to work on innovative AI video solutions. This role involves designing and delivering end-to-end product features across the Avatars and Generative Media domain. You will collaborate closely with product and design teams to address user challenges and iterate on feature development. The successful candidate will enjoy a competitive salary starting at £130,000, a stock option plan, and the flexibility to work remotely from the EU, UK, or Switzerland.

SLAMcore is looking for a Technical Support Specialist to ensure a reliable customer experience. In this role, you will troubleshoot complex issues on the Synthesia platform, validate technical solutions, and collaborate with engineering for escalated issues. With a minimum of 5 years in technical support, you'll need strong analytical skills and an ability to communicate clearly. Join us to work in an innovative environment with competitive salary and benefits, including generous annual leave and a fun culture.

SLAMcore is seeking skilled engineers to enhance their core backend for a globe-scale messaging platform. The role involves collaborating on distributed systems challenges whilst utilizing AI tools for development. Ideal candidates will demonstrate a strong interest in large-scale infrastructure, possess proficiency in a high-level server-side language, and thrive in collaborative, innovative settings. This position emphasizes urgency in delivering impactful features, ensuring support for developers using our platform.

About this role The Pub/Sub team owns the core backend that underpins Ably's entire edge messaging platform. This is a rare opportunity to work on genuinely hard distributed systems problems at planet scale; designing and improving the infrastructure that developers and their users depend on in production every day. You'll be hands-on, driving the development of new functionality and initiatives to scale and improve Ably's core Pub/Sub platform. We work in an AI-first engineering culture: AI tools are part of how we plan, prototype, and iterate - but engineers own every technical decision, and human judgment is the quality bar that everything is measured against. You can read more about the core concepts of working on a truly distributed system in our blog post here. Day to day you will Deliver key platform functionality. You'll work across Ably's realtime products including our low-level Pub/Sub APIs, our LiveObjects state synchronisation layer, and AI Transport, the messaging backbone purpose-built for AI agent communication, focusing on shipping new features, performance improvements, bug fixes and maintenance. Work fluently with AI tooling. You'll use AI tools for planning, spike work, code generation, and documentation, while taking full ownership of correctness, architectural quality, and what actually ships. Fast iteration is expected; shortcuts in quality are not. Solve hard distributed systems problems. You'll collaborate with a talented engineering team to work through genuinely interesting and challenging technical problems. Stay driven by 'Developer First' principles. You'll work closely with other engineers to identify and address the most important problems developers face when building on Ably. Push to see your work in customers' hands. You'll move with urgency to ship, because you care about the impact your work has on the developers and companies building on our platform. We'd love to talk if you have A strong interest in, or direct experience with, distributed systems and large-scale infrastructure. Experience working with or building messaging queues, pub/sub systems, or streaming systems at scale. Extensive experience with a high-level server-side language (Node.js or Go preferred). The ability to self-start, work through ambiguity, and make good decisions without a lot of hand-holding. A practical relationship with AI tooling. You use it to go faster and think more clearly, and you know where to apply rigour that AI alone can't provide. A transparent, collaborative build in the open mindset. You're comfortable sharing your work publicly, whether that's writing about what you're building, talking about technical decisions, or contributing to the broader developer conversation around the problems Ably solves. Experience in dynamic, early-stage environments where adaptability and resourcefulness are core skills. Bonus points if you have Experience building developer-first products. Experience with products brought to market through a product-led growth approach. What's it like to work at Ably? We're tackling planet-scale problems and our ambitions are a testament to that. You'll join a successful, deeply motivated and collaborative team that thrives on innovation, experimentation and autonomy. To get a sense of life at Ably, visit our careers page. You can also read about the origins of Ably's core values on our blog. We believe in fostering a culture that's built on inclusivity and mutual respect among all team members, and we recognise that each individual is different and will want to be supported in their role in different ways. We provide a range of perks and benefits to aid folks' development and wellbeing, allowing them to be their best selves and do great work. A remote-first and flexible work environment. UK-based teams come together in person once per month in our London hub (next to Old Street) and we get together as a company twice per year. Aside from that, you're welcome to work wherever suits best for you. Equity. We’re a growing start-up and we want all team to members to share in the success of the company through our EMI share options programme. Enhanced holiday allowance. Our policy provides Ablyans with 28 days of paid annual leave (27 regular days, plus a day off to enjoy your birthday). Enhanced parental leave package, so that you can take the time you need to get to know your new family member, rest and recover. Home workstation budget of £500 on joining (and £150 p/a thereafter), so that your home office is set up to serve you well and that you have everything you need to work comfortably. Personal learning and development budget of £1000 annually, and 5% L&D time during working hours to focus on improving your skillset. Private healthcare with BUPA. Medical cash plan to cover a range medical and dental costs. Mental wellbeing coaching and counselling from Self Space. Monthly wellbeing budget via Juno. Life assurance and income protection. Access to Tech & Cycle to Work schemes. Weekly snack allowance for our end-of-week "Need To Know" meeting. A fully-paid one-month sabbatical after five years with Ably. Diversity, Inclusion & Belonging at Ably We believe our differences as individuals is what makes us great. Our people are at the heart of what we do, and we encourage everyone to be their most authentic self at Ably: we see inclusivity and openness as fundamental to creating long-term success as an organization. We encourage applications from all backgrounds regardless of age, disability, gender, sexual orientation, parental status, race, religion, educational background or neurodiversity. Ably has an amazing opportunity ahead of us, and we want anyone to be able to contribute to that opportunity. If you enjoy working as part of a technology company, value open source, and love solving hard problems - then we'd love to hear from you, regardless of whether you fit the job description exactly or not. If in doubt, drop us an email; we'd be more than happy to give you some advice on your application.