Top Tech Jobs & Startup Jobs in London

Manage and ensure quality, accuracy and reliability of core reference data for securities, issuers, ratings, industry classifications and investment analytics. Resolve complex data issues, collaborate with stakeholders, drive process improvements to reduce risk and improve efficiency, and support initiatives to scale operations. Use Excel and data visualization/tools and work with enterprise data platforms as needed.

Lead and oversee post-trade collateral and margin management for fixed income and derivatives. Manage teams, streamline workflows, mitigate risk, resolve complex operational issues, and coordinate with investment, legal, compliance, vendors, brokers, custodians, and client teams.

Lead and contribute as a player/coach for a global content delivery engineering team. Manage stakeholders, set engineering standards, design front-end and backend/data solutions, mentor associates, prioritize resources, and build scalable, resilient software and data products.

Design, build, and operate production-grade generative AI applications (copilots, RAG pipelines, agents). Partner with business teams from discovery through rollout, implement eval-driven testing, observability, cost controls, security/privacy/compliance, and codify reusable patterns and runbooks. Own integration with enterprise systems and apply responsible-AI governance.

Lead and build an AI Engineering function: design, develop, and operate production LLM-powered applications and retrieval-augmented systems; hire and mentor engineers; ensure observability, cost optimization, security, compliance, and responsible-AI controls; partner with business stakeholders from discovery through rollout.

Lead and transform software and data engineering at Capital Group, inspiring a large team to drive strategic growth and innovation across various sectors.

Build, maintain, and refine high-performance, scalable systems in the Investment Results domain. Leverage AI-driven and prompt-driven techniques to accelerate development, collaborate with development teams, IT partners, and business stakeholders, elicit requirements, test solutions, and deliver end-to-end features across projects.

Lead global strategy and delivery for Market Data Services, managing category strategy, vendor relationships, sourcing, negotiations, licensing/risk, budgets, and service delivery. Partner with senior leaders to optimize spend and data usage, build high-performing teams, and implement scalable supplier governance and sourcing processes.

Join a small team delivering in-house UK payroll and outsourced European payrolls. Responsibilities include preparing and formatting payroll data, uploading to Dayforce, running payroll and HR reports, administering pensions and benefits, processing bonuses and off-cycle payments, liaising with HMRC and external providers, creating bank files, assisting audits and year-end reconciliations, and overseeing supplier payroll delivery.

Serve as a subject-matter expert in NAV oversight and fund accounting for Luxembourg, Australian and UK retail and Luxembourg alternative funds. Perform reconciliations, valuations, cash management, complex transaction processing, regulatory and financial reporting, hedging and performance validation. Lead projects, provide guidance to junior staff, liaise with fund administrators and custodians, and support audit and regulatory requirements.