java application developer jobs in London

Handelsbanken combines a long-established relationship banking model with secure, resilient, and customer-focused technology. Our technology teams enable the Bank’s decentralised way of working, delivering systems built for stability, trust, and long-term value.We are on a multi-year technology and digital transformation journey to enhance customer...

Role Summary We are seeking an experienced Java Full Stack Developer to join our Digital Asset development team. This is a hands-on engineering role responsible for building end-to-end product experiences across modern web user interfaces and Java backend services that power institutional digital asset capabilities in a regulated financial services...

Our public sector client is seeking a Senior Software (.NET) Developer (Reliability Clearance, 10+ years of experience) to support the maintenance and development of web portals using C# (ASP .NET Core) and PowerBI. This role supports the enhancement and modernization of two applications focused on environmental data collection, monitoring, and ecosystem...

Senior Software Developer- .NET/DevOps skills requiredCompany DescriptionJoin Netcompany in leveraging technological innovations to foster societal transformation.Netcompany was awarded 5th position on the esteemed UK Top 50 Best Places to Work in the Glassdoor Employees’ Choice Awards for 2024. As one of the fastest growing technology companies, we are...

Senior Software Developer- .NET/DevOps skills required Full-time Join Netcompany in leveraging technological innovations to foster societal transformation. Netcompany was awarded 5th position on the esteemed UK Top 50 Best Places to Work in the Glassdoor Employees’ Choice Awards for 2024. As one of the fastest growing technology companies, we are...

A well-established financial markets firm is seeking a Senior Java Trading Systems Developer to support the continued development of its electronic trading technology.This is a hands-on engineering position focused on building and improving systems used to manage orders and trading activity across multiple markets and venues. The successful candidate will...

Senior Backend Developer (Java / Spring Boot / AWS)Duration: 6 months initialThe role:I'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain cloud-based services on AWS. The work is hands-on and includes code reviews and input into technical decisions.Responsibilities:Build REST and event-driven...

About us At DFS Group, we're proud to help people create spaces they love to live in. We're home to DFS, Sofology, and The Sofa Delivery Company: three brands with their own personalities, brought together by a shared mission. Behind our brands is a passionate Group team. From Finance and Technology to People, Marketing and Supply Chain, our Group functions...

Tech Stack: Java and low-latency, JVM engineering, FX, eFX, Crypto, hedging and risk-management systems, Aeron, FIX connectivity, Linux, Multithreading,Harrington Starr have partnered with an innovative to Software Developer specialising in Crypto, FX and eFX currently developing high-performing trading systems. We’re looking for a skilled Java or Quant...

Copilot Application Developer - London (Hybrid) - Up to £70,000We're working with a leading professional services organisation that is investing heavily in automation, AI, and modern workplace technologies. As part of this growth, they're looking for an Copilot Application Developer to help build innovative business applications and intelligent automation...

About Us:Based in San Francisco, California, Turing is the world's leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

Role:Principal / Senior Java Developer – Elite FinTech Rate:Up to £750 per day Location:London Working Pattern:Hybrid Contract:Contract The Role They are looking for an exceptionalPrincipal / Senior Java Developerto join a high-calibre engineering team, working alongside some of the industry's strongest developers, architects and technical leaders. This...

Founded in 2011, Fasanara is a global asset manager and technology platform. We manage c. USD 6 billion AUM (as of December 31, 2025) in Fintech strategies on behalf of pension funds and insurance companies in Europe and North America. With c.110 employees globally, we are a pioneer investor in Fintech Lending, enabling Real Economy Impact. Fasanara manages...

A trusted UK Central Government technology programme is looking for an experienced Senior Java Developer to join their high-impact delivery team. Working on mission-critical systems that support national infrastructure, this role offers the chance to work fully remotely on challenging and technically rich work across legacy and modern platforms.You will be...

Talan is looking for a talented Java Developer with React experience to join our team delivering cutting‑edge Front Office solutions within Global Markets environments. You will play a key role in designing and enhancing regulatory, alerting, and sales enablement platforms, directly supporting front‑office users and business stakeholders across capital...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 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...

Job Description Java Middleware Software Developer Someone who has excellent Java skills, Spring MVC, Apache CXF, Dozer (a fast and flexible framework for mapping back and forth between Java Beans) & XML: A minimum of 5 years’ work experience in Software Development Experience with implementing service-oriented architecture (SOA) Designs and develops...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 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...

We are seeking an experienced Application Development & Maintenance Support Engineer to support and maintain enterprise healthcare integration applications.This role is focused on production support, application maintenance, troubleshooting, system monitoring, incident resolution, and continuous operational improvements. The successful candidate will have...

Role Summary We are seeking an exceptional Senior Java Developer to join our FM Digital Channels team at a leading international investment bank. In this contract role, you will drive platform development forward and deliver high-quality solutions to business-critical customer requirements. You will work as part of a dynamic global team responsible for...