5 senior software engineer jobs found in London

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.     What We do /   The   Team : Markets Operations Technology is   going through a n   exciting phase of transformation in margin and collateral domain .   We are re ‑ engineering our technology estate to achieve world ‑ leading performance and resiliency,...

FX Client Platforms - Senior UI Software Engineer (Vice President) About the Role We are seeking a Senior Applications Developer to join a team delivering pricing solutions for the Foreign Exchange (FX) business. You will cover the full software development lifecycle — analysis, design, implementation, and testing — while providing technical leadership to the team. Primary Responsibilities Design and develop high-quality trading GUIs providing compelling user experiences for internal and external traders Define and enforce interoperability standards across web applications using FDC3, and REST/WebSocket APIs. Experience with OpenFin or Interop is desirable but not essential. Drive AI integration within the development lifecycle — including AI-assisted coding, automated test generation, and intelligent monitoring Influence performance engineering across the UI stack: profiling, rendering optimisation, bundle analysis, and low-latency data delivery Contribute...

Technology Product Owner – XVA Regulatory & Data Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.    What We do / The Team  Equities Technology at Citi is undertaking a bold, multi‑year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining. We are re‑engineering our technology...

Job Description About Citi As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad range of teams, roles, and cultures, and we invite you to come and join us! Citi’s technology team supports business operations in 100+ countries, across multiple lines of business spanning both Institutional and retail businesses. The group works to optimize the IT environment by standardizing production platforms, reducing complexity, and introducing innovative solutions that provide new business capabilities, reduce total cost of ownership, and create a competitive advantage for Citi. We want to regularly engage with talented individuals who are passionate about producing clean, testable code as part of a high performing team. We have found this to be way more important than...

About the Team: Build the next generation of agentic AI. The Applied AI and Agents Factory brings together ambitious engineers to turn advanced AI capabilities into production-ready solutions. Working directly with business and technology teams, you’ll tackle complex engineering challenges, build intelligent agents and take ideas from initial concept through to live deployment. This is an opportunity to work at the cutting edge of AI engineering, developing systems that go beyond conversational tools to reason, plan and execute multi-step workflows. You’ll take ownership of the full engineering lifecycle, from agent architecture and orchestration to enterprise integration, security and observability. With a strong focus on hands-on engineering, collaboration and rapid delivery, the Factory gives you the opportunity to solve challenging technical problems, influence architectural decisions and help shape reusable tools and engineering standards adopted across...