70 lead engineer jobs found in London

ABOUT US: LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity. LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ...

About the Team Join Citi’s Enterprise AI Products team, a small, high-impact global team building innovative AI solutions for the wider bank. We are at the forefront of Agentic AI , developing capabilities that enable data sharing across agent ecosystems, support new Agentic AI use cases and shape modern AI architecture through purpose-built tooling. This is an opportunity to work at the intersection of cutting-edge technology and real business impact.   The Role We are looking for a seasoned Lead AI Engineer to combine hands-on engineering and architecture with strong business engagement. You will work directly with business partners to understand real-world problems, translate them into technical solutions and support successful delivery and adoption of our AI platforms.   This is a senior role within a deliberately flat team where you will have significant ownership and influence. You will help shape the platform strategy and roadmap, while gaining exposure to...

The Senior Cloud & Platform Engineering Lead will own and drive the design, delivery, and operational excellence of enterprise cloud platforms and migration initiatives. This role plays a critical part in advancing LSEG Post Trade’s cloud strategy, with a strong focus on AWS, Kubernetes (EKS), automation, and cloud-native engineering . You will lead high-performing engineering teams, shape platform strategy, and ensure secure, scalable, and resilient cloud services. This is a hands-on leadership role requiring both technical depth and strategic influence across engineering, architecture, and business partners. What You’ll Do Lead the design, build, and optimisation of AWS-based cloud platforms, including EKS, Kubernetes, networking, identity, and observability capabilities supporting enterprise-scale workloads Drive cloud migration programmes end-to-end , including application assessment, readiness analysis, refactoring strategies, and transition planning...

ROLE PROFILE: CDSClear is responsible for clearing Credit Default Swap (CDS) indices, single names and options across European, US and Asian markets. Risk is a core capability of the service, supporting intraday and overnight batch margin calculations, member‑facing what‑if simulations, and pricing analytics. This contract role sits within CDSClear Risk Technology, focused on the Java‑based risk platform and risk engine that delivers quantitative margin models at scale in a highly regulated environment. ROLE SUMMARY: The role is suited to experienced engineers who have worked on risk, pricing or analytics platforms in an investment bank, CCP or similar financial services environment. You will work on systems that sit at the core of the clearing service, where correctness, performance, resilience and operational control are essential You will help build and implement the platform components and execution patterns that allow quantitative risk models to run reliably...

About Us: LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity. LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ...

Role Profile The Senior lead Scala Engineer will play a key role in the engineering and delivery of a critical market‑infrastructure service within the Equities platform, with a strong focus on AWS cloud‑native development. Reporting directly to the Senior Technical Delivery Engineer, Post Trade, the successful candidate will be responsible for designing, implementing, and maintaining performant, resilient, and scalable backend services built predominantly in Scala. As a senior member of the engineering team, this individual will help shape technical direction, contribute to best-in-class engineering standards, and actively support the continued growth and evolution of the business. This exciting opportunity requires a candidate to take Pride in their work and Ownership of their work. Have excellent engineering skills, communication skills, can-do behaviour and highly collaborative. Always positively encouraging the team. Key Responsibilities A strong focus on...

Position Summary The Front End (UI) Software Engineer is a senior-level position responsible for establishing, architecting, and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis, frontend architecture, and fullstack programming activities. This role specifically focuses on leading the development of scalable, secure, and modern Front End (UI) digital platforms with Fullstack capabilities . The lead engineer will set architectural standards for enterprise-grade web applications, drive UI component libraries and design system adherence, establish best practices for API integration and backend services, and mentor development teams across the software delivery lifecycle.   Key Responsibilities Technical Leadership & Core Applications Development Architectural Alignment & System Design: Provide expertise in frontend/fullstack...

Low Latency Rust Engineer 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 This is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to lead applications systems analysis and...

Low Latency Java Engineer 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 This is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to lead applications systems analysis and...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview 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....

Join Citi's XVA Technology team in London as a Lead Software Engineer, Applications Development at Vice President level — a senior role at the forefront of engineering innovation within a globally operating financial institution. In this position, you will lead the design, development, and delivery of complex application systems that directly shape how technology integrates across critical business functions. Working alongside high-calibre engineers and engaged business partners, you will own technical outcomes at scale and drive meaningful improvement across applications platforms.   Responsibilities Lead the design and development of application systems and software, ensuring solutions align with the overall architecture blueprint and meet evolving business requirements. Partner with multiple management teams to define system enhancements that support the deployment of new products and process improvements. Resolve high-impact technical problems by conducting in-depth...

Senior Development Engineer – Rates Risk Technology (VP)   Overview Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. We enable clients to achieve their strategic financial objectives by providing them with cutting-edge ideas, best-in-class products and solutions, and unparalleled access to capital and liquidity.   What We do / The Team Rates Technology is looking to hire an experienced Engineer based in London. This is a global team with a client base spanning 70+ countries. This role will be within the Risk Technology team.   Risk Technology is focused on delivering solutions to the Rates Trading...

26996794 - Senior Software Engineer – Ultra Low Latency Risk Engine Developer   Overview Citi Equities Technology | Equities Electronic Execution (Electronic Trading) Citi's Equities Technology organization is seeking a Senior Software Engineer – Ultra Low Latency Risk Engine Lead Developer to join the Equities Electronic Execution (Electronic Trading) technology team. This role is focused on the design, development, and delivery of Citi's next-generation low-latency Risk Engine for cash equities and its integration into the broader execution platform — encompassing the Centralised Position Service, Client Connectivity, Market Access layers, and high-throughput market data processing.   Role Overview The engineer will own critical, latency-sensitive risk-checking components that sit directly in the cash equities trading hot path, ensuring pre-trade and real-time risk controls are enforced with microsecond-level performance while maintaining correctness and...

Senior Front-End Developer (React)  – Equity Derivatives Technology – VP 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...

EMEA Head of Client Connectivity Engineering (SVP) 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.  Equities Technology 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 estate to...

FTSE Russell is a leading global provider of financial services, specialising in the creation and management of indexes, data, and analytic solutions. As part of the London Stock Exchange Group (LSEG), we support investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Our products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. Job Summary We're seeking a Senior Software Engineer to join the team building next-generation distribution capabilities for our index products. You'll be delivering index data to the global financial community across multiple channels including APIs, cloud data platforms, file-based delivery, and AI-native protocols. Reliability, security, and data quality are non-negotiable as we build out scalable, cloud-native infrastructure. The ideal candidate is a self-sufficient, technically...

At Pension Insurance Corporation (PIC), we're looking for a Principal IT Systems Engineer to join our IT Operations and Engineering team. This is a senior, hands-on technical leadership role for an experienced engineer who combines deep infrastructure expertise with modern cloud and platform engineering capabilities. You'll play a key role in shaping and supporting our enterprise technology platforms across on-premises and cloud environments, acting as a trusted technical authority and escalation point across the business. Responsibilities Act as the senior technical authority and escalation point across infrastructure, cloud, identity and platform services. Provide technical leadership and deputise for the IT Systems Team Manager when required. Drive the design, resilience and continuous improvement of on-premises and cloud platforms. Lead root cause analysis and resolution of complex technical issues and major incidents. Influence engineering standards, architecture...