Top Tech Jobs & Startup Jobs in London

Lead transformation initiatives for OTC derivative settlements within Markets Operations. Partner with Technology and Operations to prioritize projects, analyze processes, manage risks and issues, coordinate working groups, engage stakeholders, report program status, maintain documentation, and drive innovation and continuous improvement. The role requires strong knowledge of banking operations, settlements, payments, reconciliation, and non-cleared OTC derivatives.

Develop and communicate Citi Wealth CIO investment strategies and market views to advisors and sophisticated wealth clients across EMEA. Partner with field leadership, research, portfolio management, product, and innovation teams to identify business opportunities, shape strategic plans, support portfolio and thematic recommendations, and inform product development. The role requires deep global markets and multi-asset portfolio expertise, strong communication skills, regulatory compliance, and certification under the FCA and PRA regime.

Leads architecture and development of scalable, secure, accessible frontend and fullstack enterprise applications. Establishes UI engineering standards, reusable component libraries, design system adherence, automated testing, performance practices, and CI/CD governance. Designs API and backend integrations using REST, GraphQL, BFF layers, and microservices. Collaborates with product, UX, backend, infrastructure, and security teams; resolves complex technical problems; ensures cybersecurity and compliance; and mentors engineering teams.

Develop and support quantitative pricing, valuation, and risk-management models for commodities trading. Build analytics libraries and numerical models using C++, Python, JavaScript, React, Monte Carlo methods, and partial differential equation solvers. Collaborate with traders, structurers, technology teams, and control functions to support complex financial products, governance, market risk, and compliance.

Develop and support valuation models, pricing algorithms, and data analysis for Citi’s FX Options business. Collaborate with traders, sales, structuring, technology, and control functions; write performant Python and C++ code; document solutions; and coordinate projects across teams. The role requires strong quantitative modeling, communication, organization, and ownership skills.

Leads accounting integrity and control activities for futures and derivatives clearing. Owns general ledger balances, validates accounting flows under US GAAP, identifies and remediates reconciliation and reporting issues, strengthens financial reporting controls, and coordinates complex initiatives across Finance, Operations, Technology, audit, and control functions. The role also drives process improvements, risk reduction, and balance sheet substantiation while managing multiple priorities in a high-risk financial services environment.

Own the full lifecycle of quantitative systems for FX Options electronic pricing and automation, including design, implementation, testing, validation, deployment, governance, and production support. Build pricing and risk analytics using C++, Python, kdb, and SQL. Collaborate with traders, quants, technology, risk, compliance, legal, and finance teams to deliver production-ready solutions and maintain pricing controls, data integrity, and regulatory standards.

Lead legal support for Citi’s EMEA investment bank lending, restructuring, and workouts businesses. Advise on complex cross-border financing transactions, regulatory developments, private credit, leveraged finance, restructurings, and creditor rights. Serve as the senior legal escalation point, shape governance and risk practices, contribute to strategic initiatives, and lead the regional legal team.

Develop and enhance production-grade electronic pricing, risk management, and automation systems for FX Options. Build high-performance quantitative analytics libraries in C++ and Python, collaborate with traders and structurers, translate business needs into pricing infrastructure, and support governance, risk, compliance, and finance controls.

Drives application vulnerability remediation across software portfolios by guiding SAST fixes, dependency upgrades, containerization, and same-day release enablement. Reviews remediation plans, coordinates contractor engineering squads, validates code and pull requests, improves developer security tooling, and tracks remediation KPIs including MTTR, defect resolution velocity, patch aging, and deployment readiness. Partners with application, platform, and tooling teams to remove technical blockers and ensure testing, deployment, audit, and compliance evidence.