Top Tech Jobs & Startup Jobs in London

Lead design, development, testing, and operation of ultra-low-latency C++ trading and risk modules, integrating FPGA acceleration. Drive latency optimization, CI/CD, AI-assisted engineering adoption, automation, and cross-team collaboration to ensure reliability and performance.

Lead SRE responsible for improving reliability, observability, and operability of customer-facing microservices. Build automation and tooling to reduce toil, define SLOs/SLIs/error budgets, implement resiliency/self-healing patterns, drive performance testing and capacity planning, partner across teams, and govern safe AI-assisted engineering practices.

Lead DevOps Engineer on an agile team supporting low-latency electronic trading, data analytics and quant environments. Provide technical leadership, develop and review production code, manage CI/CD and release activities, automate tooling, monitor capacity, and deliver third-level production support while advocating firmwide engineering practices.

Own and lead the UK credit-card proposition: define roadmap, set pricing and promotions, model unit economics, manage risk and regulatory compliance, conduct market and customer research, and lead cross-functional product lifecycle activities to drive profitable, responsible growth.

Provide end-to-end application and infrastructure service delivery for front-office equities trading systems, maintain production stability, monitor environments, troubleshoot incidents, escalate and communicate issues, and support incident/problem/change management across on-premises and cloud systems.

Lead consumer PR strategy across the UK, Germany and future European markets. Develop integrated earned-media campaigns, build brand narratives, manage external agencies, align PR with marketing/product teams, activate sponsorships, and prepare scalable PR frameworks for new market launches.

Lead design and delivery of high-performance Java back-end systems for OMS/Sales. Provide technical direction, write and review secure production code, drive adoption and governance of AI-assisted engineering practices, ensure cloud-native (AWS/Terraform) scalability and operational stability, and promote SDLC best practices across teams.

Support EMEA compensation strategy and governance by delivering analyses, translating regulatory requirements into frameworks, managing country-specific practices, collaborating on HR technology and reporting, and driving process improvements with an AI focus.

Lead execution research and transaction cost analysis to inform algorithm roadmap. Build and govern TCA frameworks, run market-microstructure research and A/B tests, develop pre- and post-trade models, translate findings into production features, and partner with Product, Trading, and Technology while mentoring junior researchers.

Lead strategic UX initiatives across data platform products: define design/research strategy, create wireframes and prototypes, build and scale design systems, partner with engineering, apply inclusive and accessible design, mentor designers, and use research and data to drive customer-centric experiences.