Rothstein Recruitment Ltd

Senior Platform Engineer - Kubernetes - FinTech Excellent opportunity for a Senior Platform Engineer to own and evolve the internal platform that all application services run on. This role sits between application engineering and core cloud infrastructure. You will design, build, and operate the Kubernetes platform on AWS as a product, providing secure defaults, reliable delivery paths, and strong operational guarantees. What you will work on: Kubernetes platform ownership Own the EKS platform end to end: cluster design, upgrades, node life cycle, scaling strategy, and reliability. Define and maintain cluster baselines: namespaces, RBAC, resource limits, pod security, network policies. Design safe patterns for running stateless and stateful workloads on Kubernetes. Ensure predictable behaviour under load, failure, and partial outages. AWS platform foundations Design and maintain AWS infrastructure supporting EKS: VPCs, subnets, routing, load balancing, IAM, KMS. Implement least-privilege IAM using IRSA and strong role separation. Manage AWS integrations such as ALB/NLB, Route 53, ECR, S3, CloudWatch. Balance cost efficiency with reliability and regulatory expectations. Infrastructure as Code Treat Terraform as the source of truth for AWS and Kubernetes infrastructure. Build reusable, auditable modules rather than one-off stacks. Own change control, reviews, and drift management. CI/CD and delivery guardrails Own the delivery foundations used by application teams. Define standard build and deploy paths for Kubernetes workloads. Improve deployment safety through automated checks, rollbacks, and promotion models. Reduce manual steps and operational risk without slowing delivery. Security and compliance by design Embed security controls into the platform, not as after-the-fact reviews. Implement secrets management patterns aligned with AWS and Kubernetes best practice. Introduce policy-as-code to prevent unsafe configurations reaching production. Support auditability, access control, and operational evidence expected in regulated environments. Observability and operations Define standard observability across services: metrics, logs, tracing, alerts. Build actionable alerting with clear ownership and low noise. Participate in on-call and incident response. Run post-incident reviews and drive systemic improvements. Interested? Please Apply!

Senior Golang Developer - Kubernetes - Financial Services Excellent opportunity opens for an experienced Developer strong on Golang with experience in AWS and Kubernetes to join a highly regarded Financial Services entity's London office. You will act as the team lead and play a key role in building mission-critical financial applications that power trading, investment, and risk management systems across the firm. If you are passionate about working in a dynamic, fast-paced environment and are eager to apply your technical expertise to the financial services industry, this is the role for you. Key Responsibilities: Design, develop, and maintain high-performance Back End services using GoLang to support financial applications and services , including trading platforms, investment systems, and risk management tools. Build and deploy cloud-based solutions using Amazon Web Services (AWS), including services such as EC2, S3, RDS, DynamoDB, and Lambda to create scalable, reliable, and secure infrastructure. Implement and manage containerized applications using Kubernetes, ensuring seamless orchestration, scaling, and resilience in a cloud environment. Write clean, efficient, and well-documented code while following best practices for financial systems development, focusing on performance and security. Collaborate with other development teams, business analysts, and stakeholders to define and refine requirements, and ensure that applications meet financial regulatory standards and business needs. Optimize the performance of Back End services, ensuring low-latency responses and high availability, critical for financial services. Implement CI/CD pipelines, automated testing, and monitoring systems to ensure the reliability and stability of production systems. Proactively identify issues and bottlenecks in existing systems and propose solutions to improve the system's performance and scalability. Stay updated with new tools, technologies, and industry trends in cloud computing, containerization, and financial systems to continuously improve development practices and outcomes. Ideal Skills: Proven experience (2+ years) in GoLang Back End development, with a strong focus on performance optimization and building scalable systems for high-volume, high-frequency financial applications. Strong experience working with Amazon Web Services (AWS), including EC2, S3, RDS, DynamoDB, Lambda, and other cloud-native technologies. Hands-on experience with Kubernetes for deploying, managing, and scaling containerized applications in a cloud environment. Solid understanding of financial systems and services, particularly in areas such as trading platforms, investment management, and risk analytics. Experience in building microservices architectures and working with APIs (RESTful, gRPC, etc.) to integrate various systems. Strong knowledge of containerization (Docker) and continuous integration/deployment (CI/CD) practices. Experience with database systems (relational and NoSQL) and working with financial data. Familiarity with DevOps practices and tools to streamline the development life cycle, such as infrastructure-as-code (eg, Terraform or CloudFormation). Ability to troubleshoot and resolve issues in production environments, ensuring uptime and performance in high-pressure, mission-critical scenarios. Excellent communication skills to collaborate effectively with cross-functional teams and stakeholders in a fast-paced financial environment. Experience with serverless computing (AWS Lambda, etc.) to create efficient and scalable solutions. Knowledge of financial industry regulations and standards, particularly around data security and privacy. Familiarity with event-driven architectures or message queues (eg, Kafka, RabbitMQ) for Real Time data processing. Experience with automated testing frameworks and continuous delivery tools like Jenkins, GitLab CI, or CircleCI. Understanding of performance monitoring and observability tools such as CloudWatch, Prometheus, or Datadog. Interested? Please Apply! Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform

Rust Engineer - Web3 - Crypto - Smart Contracts Excellent opportunity opens for an Engineer experienced in building complex systems using Rust , who is passionate about Crypto and blockchain technology and excited to drive innovation. The ideal candidate will have worked in the Crypto Space and will be well-versed at building Smart Contracts . Strong understanding of Rust and can design and implement robust, efficient, and secure systems. Comfortable writing clean, scalable, and well-tested code. Working in a fast-paced start-up environment, where you'll need to take initiative and solve problems independently. Pushing code that supports tens of billions of dollars of daily transactional volume doesn't scare you. Tech-passionate, curious and eager to learn new technologies and design patterns. Experienced at navigating up and down a deep technical stack. Capable of articulating complex technical concepts clearly and succinctly. Excellent problem-solving skills and attention to detail. About You: Bachelor's degree in Computer Science or related field, or equivalent practical experience. 4+ years of experience in systems programming, with a strong focus on Rust. Previous experience with blockchain technologies, smart contracts, and decentralised finance. You have conviction in your architecture/designs/ideas but are open minded to share and build solutions with others. Experience with AWS services, particularly related to deploying, managing, and scaling applications. Proficiency in Back End development languages, such as Typescript. Experience working with workflow engines. Interested? Please Apply! Rust Developer Rust Code Rust Coding Rust Specialist Software Engineer Developement Rust Engineer Crypto Digital Assets Blockchain Web3 Web3 Go Golang Programme Programming Decentralised Azure AWS Automate Smart Contract Smart Contracts Small Contracts Equity Bank Banking Hedgefund Trading Low Latency Ultra Low Latency Financial Services Decentralised Finance Remote WFH Hybrid Work Abroad Ethereum

Head of Security Architecture - CISSP - Banking Excellent opportunity for an experienced Leader with strong, current technical knowledge (CISSP) to join a leading retail and corporate bank as a systems modernisation and Change The Bank InfoSec Manager. This is a great chance to be the Manager for a team of 10 to resolve a broad range of security and privacy issues whilst working closely with engineers, product managers, and stakeholders. Requirements: Information Security - Solid, practical and demonstrable experience of information security (technical and non technical aspects) Technology Change - Demonstrable experience of supporting technology change initiatives to deliver solutions securely You are a confident leader, able to set the tone and direction for a diverse team of subject matter experts, offering coaching and support as required You are a skilled communicator, able to convey complex security issues to a wide audience, including non-technical colleagues. You love building strong interpersonal relationships across engineering, product, compliance, and business teams to foster a culture of shared security ownership. You are great at identifying information security risks and you enjoy finding creative solutions problems. You have a wide range of information security knowledge and crucially, you are aware of your own knowledge gaps and able to seek support and guidance as required. You understand the intersection of Risk Management and Information Security and how these relate to each other in a Financial Service business 3LoD model. Hold or have the capability to attain appropriate external qualifications, such as Certified Information Systems Security Professional CISSP. Privacy - You don't need to be a privacy expert but you will require a good understanding of core privacy concepts and how these apply to technology change initiatives Line Management - Previous experience leading and managing teams Financial Services - Experience working in FS or other highly regulate industry Intra-Group - Experience working in a intra-group outsourcing arrangement Security Manager Change The Bank CTB Security Consulting System Modernisation Security Architect Information Security Core Banking Bank Finance Financial Services Line Manager Technology Change

End User Technology Analyst - Desktop Support - Trade Floor - Investment Banking Excellent opportunity opens for a confident, enthusiastic and engaging individual with Desktop Engineer/Trade Floor Support experience to join a leading International Bank's team. The successful candidate will be confident and proactive, with an eye for change and growth. In addition to providing day-to-day trade floor, service desk and desktop support, the individual is expected to undertake project work, including: Product evaluations and recommendations Assist in the development of technical standards and operating procedures Provide assistance to Senior Support Analysts Application upgrades and deployments Service Now provisioning You will have the opportunity to support the International Technology management in governance reporting for internal control testing, internal audit and data centre reporting as a regulatory requirement. There will equally be a Project focussed element, where you will get involved in the maintenance and creation of application support documentation and project execution across a range of Front Office and business support application suites. Main Objectives Provide detailed feedback to business managers and leaders Assist with maintaining IT controls, processes and associated reporting. Manage requests for information updates associated to controls and assurance delivery. Active involvement in UK and Group technology resiliency and Disaster Recovery testing and associated planning and reporting. Oversee and support Audit, Risk and Technical control assessment requests. Assistance with regulatory and audit items working with the International Technology Governance Manager Tier 1 customer desktop support and Service Desk operations Hardware support and life cycle management Application installs, moves and changes Application and hardware upgrades and mass deployments Service Desktop project tasks execution Mobility support via BB UEM and WorkSpace One products Support SCCM Patching MS Deployments where and when necessary Updating Audit documentation Monitoring and management of team ITSM/Service Now queues Skills/Knowledge Required Strong Customer/Service focus Team player with self-motivation Well presented professional with good all round communications skills Diligent work ethic to adhere to audit mandated processes Flexible and able to work under pressure Experience in supporting trading floor environments from Service Desk side Knowledge of Windows 10 and Microsoft Office products Strong background in ITSM platforms - eg Service Now, Remedy, Cherwell. Full Blackberry UEM device support Taking on Service Desk projects and ownership whilst liaising with 3rd party vendors and or other Teams within the Bank. Interested? Please Apply! EUC Analyst Desktop Support Engineer Service Desk Trade Floor Support Data Governance Network