Software Engineer Java jobs in Westminster

Some roles are just jobs. Others feel like stepping into something that is quietly shaping the future. This is one of those. A fast-growing technology company with a new base in London is building a platform that sits at the intersection of cloud, networking, and security. The details are deliberate

Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a missi

Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a missi

Java Software Developer Contract: 12‑month Fixed Term Contract (Potential Permanent Conversion) Salary: £65,000 – £75,000 Locations: London, Newcastle, Edinburgh, Glasgow (Hybrid) About the Opportunity We’re recruiting an experienced Java Software Developer to join a high‑performing delivery team wo

McGregor Boyall

£90,000 - £95,000 /year

Location: London (Hybrid) Salary: Up to £95,000 bonus benefits Permanent A leading Tier 1 investment bank is hiring a Java Software Engineer to join a front-office aligned Equities Risk technology team in London. This is a high-impact role focused on building low-latency, high-throughput systems tha

Senior Software Engineer / Developer (Java Python Messaging) London / WFH to £140k Are you a Senior Software Engineer with strong Java development experience within finance / trading environments? You could be progressing your career in a hands-on Senior Software Engineer role at the Investment Mana

Job Req Id 26953948 Location(s) London, England, United Kingdom Job Type Hybrid Posted Apr. 16, 2026 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 o

Citigroup

We’re looking for an expert level server side engineer, to join one our high-impact teams inside Citi’s CTO organisation. You’ll sit within Developer Enablement, a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fast, like a star

Profile 29

€50,000 - €50,000 /year

Requirements Must have: - Eligible to reside in the UK for the past 5 years and prepared to go through UK SC Security Clearance - Experience in Java software engineering and object-oriented design - Spring (Boot) experience - Experience with REST APIs and microservice architectures - Knowledge of Do

Lead Software Development Engineer - Services We're working with a global financial pioneer that combines the scale of a major bank with the agility of a high-growth fintech disruptor on this exciting opportunity. As a Lead Engineer, you will drive the evolution of high-scale backend services using

Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a missi

Software Engineer – Defence Tech - London Join a well-funded, fast-growing company building advanced AI and software systems for next-generation autonomous platforms. You’ll work on mission-critical technology alongside a high-calibre engineering team solving real-world challenges. What will I be do

Booking and Messaging Java Developer | £600 - £625 We're working with a global titan in electronic trading and financial markets infrastructure on this exciting opportunity. We are looking for a heavyweight Java Messaging Engineer to sit at the heart of an "eBond" ecosystem, managing high-throughput

Java Software Engineer | £90,000 - £95,000 We're working with a Tier 1 global investment banking powerhouse on this exciting opportunity. Join a high-octane Front Office Equities Risk technology team building the next generation of low-latency, high-throughput trading systems. You will leverage Core

Software Engineer – Award-Winning FinTech | Hybrid (London) Full-Time | Competitive Salary + Bonus + Benefits Join a high-growth FinTech redefining how leading financial institutions analyse and act on data . Working with banks, hedge funds, and exchanges, they build cutting-edge platforms that driv

Software Engineer Company Description: Rapidly scaling tech company This is a great opportunity to join a product-focused engineering team working on scalable, user-centric solutions. As a Software Engineer , you’ll contribute to designing, building, and maintaining modern software systems that powe

Job Description We believe in better. And we make it happen. Better content. Better products. And better careers. Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, SkyQ to Sky Glass, we never stand still. We optimise and

Staff Software Engineer - Back End We're working with a global fintech powerhouse that is revolutionising the way millions of people interact with money through high-scale distributed systems and cutting-edge cloud architecture on this exciting opportunity. This is a high-impact leadership role wher

About BMLL BMLL is the leading independent provider of harmonised Level 3, 2 and 1 historical data and analytics across global equities, ETFs, futures and US equity options. We provide market participants with immediate access to granular T+1 order book data and advanced analytics, enabling them to

About BMLL BMLL is the leading independent provider of harmonised Level 3, 2 and 1 historical data and analytics across global equities, ETFs, futures and US equity options. We provide market participants with immediate access to granular T+1 order book data and advanced analytics, enabling them to