Senior Java Fullstack Engineer jobs in Westminster

Tesco

About the role We are in the process of building and rolling out our next generation, dynamic, scalable, and resilient Fulfilment platform for Tesco, to address both manual, and robotic powered automate fulfilment operations, across all the customer order fulfilment locations. This highly optimized

About this role PACE (Private Asset Calculation Engine) is BlackRock's strategic analytics engine powering alternative investments performance and risk analytics across eFront tools. Built on a Java/Spring Boot microservices architecture with gRPC communication, PACE processes billions in fund perfo

Robert Walters

£100,000 - £130,000 /year

This is a high-impact Lead Engineer role driving the transformation of a Fixed Income technology landscape. You'll play a key role in a multi-year platform modernisation programme, building real-time, high-performance applications that support critical trading workflows. This position offers the opp

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

Backend Software Engineer / Developer (Java Spring Boot) London / WFH to £80k Are you a backend focused Java technologist with real-time systems experience? You could be progressing your career at a highly successful financial software house whose award winning software enables customers to build hi

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

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

About this role Are you interested in building innovative technology that shapes the financial markets? Do you like working at the speed of a startup, and tackling some of the world’s most interesting challenges? Do you want to work with, and learn from, hands-on leaders in technology and finance? A

Java Software Engineer | London City, Hybrid We're working with a highly regarded software engineering firm that is delivering complex Java projects across global Tier-1 investment banking environments. This is a brilliant opportunity for Java Engineers from mid-level through to Principal / Architec

We're working with a pioneering life sciences innovator bridging the gap between cutting-edge AI and biological breakthroughs on this exciting opportunity. Join a high-impact team building the next generation of Agentic AI platforms to revolutionize how scientific data is visualized and processed. Y

Software Engineer / Developer (Java Mathematics) WFH / Surbiton to £60k Are you a "mathematically minded" Software Engineer looking for an opportunity like to progress your career working on complex and interesting systems? You could be joining a global geoscience technology company within oil and g

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

Backend Software Engineer / Developer (Kotlin Java Spring Boot) London / WFH to £80k Are you a backend focused technologist with real-time financial systems experience? You could be progressing your career as a Backend Software Engineer at a highly successful financial software house whose award win

Sparta Global

£25,000 - £25,000 /year

Sparta Global is looking for passionate and committed individuals who want to kickstart a career in technology! You must be willing to complete full-time training in our Java Automation Engineer programme and will then be assigned to work in a junior role with one of our trusted client partners as a

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

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

About this role Are you interested in building innovative technology that shapes the financial markets? Do you like working at the speed of a startup, and tackling some of the world’s most interesting challenges? Do you want to work with, and learn from, hands-on leaders in technology and finance? A

About this role Are you interested in building innovative technology that shapes the financial markets? Do you like working at the speed of a startup, but want to solve some of the world’s most complex problems? Do you want to work with, and learn from, hands-on leaders in technology and finance? At

Full-stack or Front-end Software Engineer Job Location: London, England - Full Time (Hybrid) Start Date: ASAP/Flexible About CreativeX: CreativeX elevates the creative expression of data, building the global standard for creative quality. The world's biggest brands including Facebook, Unilever, Hein