Top Tech Jobs & Startup Jobs in London

Lead product development for equity derivatives trading platforms: define business purpose, write and validate specifications (Margin Loans, Financing, Convertible Bonds), align technology investments, manage delivery and governance, engage traders/quants/tech/compliance, and assess emerging trends. Collaborate globally and support occasional international travel.

Serve as primary client contact for hedge fund clients across the Prime Financial Services product suite. Drive commercial outcomes, recommend tailored solutions, manage lifecycle events and regulatory changes, monitor client sentiment, strengthen controls, and partner with Sales, Trading, Product and Operations to ensure timely delivery and operational excellence.

Lead private company coverage of fintech and payments firms: conduct fundamental research using traditional and alternative data, build models, write and market research notes, advise clients, build industry relationships, and coach junior analysts. Requires fintech/payments domain expertise and advanced data/market tool proficiency.

Manage end-to-end corporate actions processing—capture announcements, handle elections and payments, resolve exceptions and breaks, perform daily controls and reconciliations, liaise with agent banks and custodians, support UAT and system migrations, escalate risks, and drive process improvements to ensure accurate, timely client outcomes.

Hands-on lead engineer responsible for designing, developing, reviewing, and shipping secure, production-ready payment systems. Drive architecture, operational stability, automation, vendor evaluations, and mentor engineers while contributing to technical direction and team culture.

Plan, run and analyse web and app-store experiments to improve customer conversion. Use quantitative and qualitative analysis to build hypotheses, manage an experimentation roadmap, monitor page performance, manage product pages/store listings, and collaborate with SEO and cross-functional teams to drive acquisition.

Lead design and delivery of production-grade LLM and multimodal AI systems. Architect scalable APIs, agentic workflows, and high-throughput microservices. Own end-to-end reliability, performance, and continuous improvement while partnering with ML engineering, product, and cloud teams to deploy secure, enterprise-grade AI at scale.

Lead integration and DevOps work for a low-latency equities onboarding team: participate in requirements, design, development, production rollouts, integration testing, release management, and automation using Linux, Python, shell scripting, networking and FPGA technologies to ensure stable, high-quality deliveries.

Support origination, structuring and distribution of tailored private credit transactions for corporate clients and funds. Collaborate with bankers, traders and control functions, develop private credit product offerings, open distribution channels, and engage in product education with public-side syndicate and sales teams.

Lead strategy and delivery of an AI/ML-centric fraud risk product: define roadmap, requirements, and prioritization; ship fraud detection and prevention capabilities; partner with engineering and stakeholders; ensure quality and governance; build client relationships and contribute to a collaborative team culture.