Top Tech Jobs & Startup Jobs in London

Own production system reliability, incident response, observability, automation, and recovery workflows. Build self-healing capabilities, diagnostic tooling, runbooks, and golden-path operational workflows while partnering with platform and engineering teams on CI/CD, infrastructure resilience, SLOs, and reliability improvements. The role combines hands-on production support with development of automation that reduces toil, accelerates recovery, and prevents recurring failures.

Provides real-time, client-facing support for an electronic algorithmic execution platform across equities and listed options. Responsibilities include resolving technical and functional issues, coordinating with technology and engineering teams, advising clients on algorithmic strategies and best execution, and supporting FIX connectivity with exchanges and execution venues. The role requires expertise in options trading, risk management, market structure, transaction cost analysis, and execution quality metrics, plus familiarity with Python, AWS, or Snowflake.

Leads international tax across UK, EMEA, and APAC operations, overseeing corporate tax compliance, reporting, transfer pricing, planning, advisory, and risk management. Advises senior stakeholders, manages external advisors and tax authorities, supports M&A due diligence and integration, monitors legislative developments, and improves tax automation and controls. The role requires deep UK corporate tax expertise, strong international tax knowledge, and experience in multinational financial services or fintech environments.

Build and lead scalable software solutions that automate compliance and finance regulatory reporting. Process large datasets from Snowflake, generate accurate reports, build reconciliations, and translate stakeholder requirements into technical designs. Provide technical guidance, prioritize work, develop and review code, troubleshoot issues, and improve engineering standards. Collaborate closely with Compliance, Finance, Treasury, product managers, and other business stakeholders.

Build and scale reliable, API-driven global payment systems integrating with banks and payment gateways. Translate requirements into maintainable, tested software; collaborate cross-functionally; resolve performance and usability issues; participate in code reviews; manage technical debt; and support operational health and high service-level availability.

Build and scale reliable, API-driven global payment systems integrating banks and payment gateways. Translate product and design requirements into maintainable, tested components; improve performance, accessibility, and usability; contribute to shared libraries and code reviews; and support feature operational health. Collaborate with product, business, operations, design, and backend teams while driving technical decisions, architectural improvements, and engineering practices for large-scale financial infrastructure.

Lead the design and delivery of complex front-end features and shared foundations for Clear Street Studio. Establish architecture, testing, tooling, and code-quality standards; mentor engineers; partner with product, design, and backend teams; and ensure reliability, observability, scalability, performance, and high service-level availability across the platform.

Build and support a high-performance futures and options execution management platform. Responsibilities include translating requirements into tested software, integrating real-time market data and low-latency exchange connectivity, implementing risk controls and trading capabilities, resolving performance and usability issues, participating in code reviews, maintaining shared components, and supporting reliable production operations. The role requires close collaboration with product, trading, design, business, and engineering teams.

Lead end-to-end delivery of complex, cross-functional engineering and business initiatives. Develop project plans, milestones, dependencies, roadmaps, and execution strategies; manage risks and blockers; align Engineering, Product, Business, Operations, and senior stakeholders; provide progress and outcome visibility; and improve delivery processes. Requires financial-services domain knowledge, including front-, middle-, and back-office and post-trade workflows.

Own and monitor intraday and end-of-day risk exposures for multi-asset prime brokerage clients; develop margin, risk, and stress-testing methodologies; generate and automate risk reporting; engage with clients and senior management on onboarding and risk issues; and collaborate with engineering and product to enhance risk and margin platforms.