java software developer jobs in London

Barclays is seeking a Software Engineer to design, develop and enhance a scalable, event-driven platform that supports real-time integrations across Barclays' digital ecosystem. You will build high-quality software and work closely with product and engineering teams to ensure alignment with business goals.The role emphasizes secure coding, unit testing, and...

We have an opportunity to impact your career and provide an adventure where you can push the limits of what’s possible. Join a team that values innovation, collaboration, and continuous improvement. You’ll help build trusted technology products that support meaningful business outcomes. You’ll grow your technical leadership and influence how we design,...

Mandatory skills: Java, Spring Boot, and **Solace**   **Skills** Design, develop, and maintain high-quality **Java with Solace** / ION / Python applications using SpringBoot. Proficiency in Java Core 8+ is a must. Proficiency in Junit. Implement Solace publication/subscription. Implement and optimize RESTful APIs and microservices. Integrate with...

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports...

We’re looking for a passionate and experienced Senior Software Developer to join one of our agile squads. In this role, you’ll be hands‑on in designing, building, and enhancing features across the PCI Pal product suite, while also setting the technical standard through mentorship, code reviews, and driving engineering best practices. You’ll...

Job Description Senior Software Developer with Liferay or Angular You have a degree in Engineering, Computer Science or other IT related education please (Bachelor/Master). Must be very enthusiastic about Java-based web/enterprise application development and deployment and have experience with Java. The Client would like to see working knowledge and at least...

Job Description Senior Lead C# Software Developer We urgently require a Senior C# Lead Developer with at least 5 to 10 years solid expertise in developing financial systems ideally banking systems. Your experience should include extensive knowledge of developing complex financial systems in C# as Teal Leader. Any experience of SQL Server or backend database...

Location:Bristol (3 days onsite) IR35:Inside IR35 Contract:Until March 2027 We're looking for an experiencedOracle Fusion Payroll Software Developerto join a major government programme supporting business-critical payroll services and high-priority change across a large Oracle HCM environment. This is a hands-on technical role focused on payroll development...

Job Description: Our client, a leading global technology consulting firm in the Energy & Utilities industries is looking for an ETRM Software Developer to work across a number of exciting long term projects. Experience needed: Extensive experience designing and delivering solutions on the Allegro ETRM platform. Has owned the full software development...

Salary: £200k + bonus Summary Join a sophisticated technology team in the London office of a prop trading house that places software development at the centre of business strategy. This team have the responsibility of a trading group and a core infra team. This role is for a senior engineer who is able to take on problems at all levels of the software...

Hybrid Working: We take a flexible approach to hybrid/ remote working, recognising that office attendance may vary depending on your location, role and team needs. Don't let office attendance put you off applying. The expected working pattern will be discussed during the recruitment process. Pinewood.AI is looking for an experienced and hands-on Lead...

Salary: up to £220k base + bonus Summary Leading global HFT firm is looking for a pragmatic C++ Engineer to join the Core Development team, a global group of technologists who architect, build and maintain the algorithmic trading platform. As a C++ Engineer, you will design, build and test the infrastructure, tools and systems that drive trading and...

About ARQARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challenges,...

**Job Description** Build real, production-grade software that powers our global banking businesses. At JPMorganChase, we believe great engineers are made through meaningful challenges, strong mentorship, and a culture that rewards curiosity and craftsmanship. Here, you'll work alongside experienced engineers who are passionate about clean code, scalable...

Are you passionate about building modern, scalable software solutions that make a meaningful impact?Do you enjoy collaborating across global teams, solving complex technical challenges, and using emerging technologies to drive innovation?About the BusinessLexisNexis Risk Solutions provides customers with solutions and decision tools that combine public and...

Job Description We are looking to recruit a C++ Developer with at least 3 to 5 years solid C++ development experience. The Client is a new startup based in the City London. They are developing a new trading platform in C++. Please send your CV to us in Word format along with salary expectations.

Software Engineer / Developer - Voice ServicesFlint are currently seeking a Software Engineer/Developer to build, maintain, and optimize our client's next-generation communication platforms. You will bridge the gap between traditional telecommunication protocols and modern cloud-based AI. Your core focus will be developing stable SIP services using Java,...

We are looking for an experienced Senior Software Developer with strong Node.js expertise to join a growing engineering team. You will play a key role in designing, developing, and maintaining scalable backend services and cloud-native applications. Key Responsibilities Design, develop, and maintain backend applications using Node.js and TypeScript. Develop...

Are you passionate about building modern, scalable software solutions that make a meaningful impact?Do you enjoy collaborating across global teams, solving complex technical challenges, and using emerging technologies to drive innovation?About the BusinessLexisNexis Risk Solutions provides customers with solutions and decision tools that combine public and...

ОписаниеJoin Capgemini's Financial Services Business Unit within the Cloud & Custom Applications (C&CA) practice, where we Consult with Purpose. Continuously Evolve. Architect Tomorrow. We are seeking a talented Java Full Stack Developer to help deliver scalable, business-critical solutions for Broker Dealer and Capital Markets clients. This role is...