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5 senior software engineer jobs found in London

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Full Time  (5)
Financial Conduct Authority (FCA)
Jun 08, 2026
Full Time
Data Engineer (Crypto) 12mth FTC-1
Financial Conduct Authority (FCA) London, UK
Job Title: Data Engineer – Crypto Assets (12-month FTC) Division: Enforcement & Market Oversight Department : Market Oversight (Market Oversight Data & Intelligence) Salary: Senior Associate - Regulatory - National (Leeds and Edinburgh) £53,800 - £67,200 and London £59,200 - £73,800 (Salary offered will be based on skills and experience) This role is graded as: Senior Associate - Regulatory Your recruitment contact is Riley Fox via [email protected]  Applications sent via social media or email will not be accepted. About the FCA and team   We regulate financial services firms in the UK, to keep financial markets fair, thriving and effective. By joining us, you’ll play a key part in protecting consumers, driving economic growth, and shaping the future of UK finance services.   Enforcement & Market Oversight (EMO) is responsible for the FCA’s responsibilities for market monitoring, delivery of the functions of the UK Listing...
LSEG
Feb 25, 2026
Full Time
Senior Reliability Engineer - Hosting & Connectivity
LSEG London, United Kingdom
You’ll work at the heart of financial technology, leveraging  Arista and Cisco networking ,  F5 load balancing , and advanced  firewall solutions (Palo Alto, Fortinet)  to maintain secure, high-speed connectivity. Your expertise with  Solace messaging bus  and performance monitoring tools like  Netscout nPoint, Corvil, and cPacket  will help guarantee flawless data flow across trading environments. This is an opportunity to shape infrastructure that underpins billions in daily transactions—where precision and reliability are paramount. WHAT YOU'LL BE DOING:  Solace Messaging. Performing installations, upgrades, migrations, and integrations of a variety of products aligned to globally consistent methodologies with moderate guidance Installing and maintaining Networking equipment using automation tools Effectively communicating with a wide group of stakeholders Executing the development and implementation of solution to appropriate standards with moderate guidance...
LSEG
Jan 14, 2026
Full Time
Senior Enterprise Tools Engineer
LSEG London, United Kingdom
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...
LSEG
Dec 22, 2025
Full Time
Quantitative Engineer
LSEG London, United Kingdom
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...
Citi
Jun 02, 2026
Full Time
Managing Director , Securities Finance Technology - C16 London
Citi London, UK
We are seeking a highly motivated and experienced Technology Managing Director to lead our Securities Finance Technology division. This senior leadership role is responsible for formulating and driving the strategy, development, and transformation of our Agency Lending and Collateral Technology platforms. The ideal candidate will have a proven track record of managing global development teams, driving large-scale modernization programs, and fostering a culture of innovation. You will be at the forefront of transforming our legacy systems into a modern, data-enabled, and microservices-based architecture to support our growing business needs. Key Responsibilities Technology Leadership & Strategy: Define and execute a comprehensive technology roadmap for the Agency Lending and Collateral Technology platforms, aligning with business goals and industry trends. Provide vision and leadership to a global team of software engineers, architects, and project managers. Champion...
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