senior java backend developer jobs in London

Ascend Consulting in North London seeks a senior .NET Developer to design, develop, and optimize backend systems using VB.NET, C#, and SQL Server, including SAP Business One integration.You will work with SAP consultants, front-end developers, and DevOps to ensure scalable APIs, performant SQL queries, robust logging, monitoring, and cloud-based...

Company DescriptionWise 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 mission to make their lives easier and save them money.As part of...

 Backend Engineer – C# / .NET Remote (Possible relocation to the UAE) Working Hours: 6 hours aligned to Working Hours in the UAE Employment Type: Full-timeSalary: AED 240,000 – AED 360,000 per annum About the Role We are looking for a skilled Backend Engineer with strong experience in C# and .NET to join a fast-paced engineering team building scalable,...

Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products.   As a Senior Lead Software Engineer at JPMorganChase within the Global Sales OMS technology group working in EMEA with a focus on our NAMR operations, you are an integral part of an agile team that...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation in...

Can’t find the right Software Engineer / Developer role for you? Join our talent pool and we’ll contact you about future opportunities when they arise.Lacorta Resourcing is a Technology Recruitment Firm based in the City of London, serving a client base across the UK, Mainland Europe & North America. We are a leading Technology Staffing Consultancy,...

A World-Changing Company   Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more.The Role   Backend Software Engineers at Palantir build...

About ExTracExTrac is a decision intelligence company used by governments, defence organisations, financial institutions, and corporates operating in complex, fast-moving environments. Our capabilities fuse curated data sources, domain-specific AI, and deep human expertise to transform information overload into clear, actionable foresight.Our ambition is to...

Job DescriptionSenior Backend PHP Developer £500 per day (12 Months+ / Option of working from Remote / Outside IR35)Seasoned PHP developer to work on a new Greenfield backend REST API for the transport industry and help implement it. You will be working alongside a Senior API Engineer in a smaller, long established, non-corporate and friendly agency outside...

Shape the Industry and Your CareerAt Cytora, now an Applied Systems company, we’re transforming how insurers and brokers connect, operate, and grow. Our AI-powered platform is driving smarter decisions, greater efficiency, and seamless collaboration across the global insurance ecosystem. As we accelerate digital transformation, we’re looking for curious,...

Information Tech Consultants Ltd in London is hiring a Junior Java Developer to design, develop, and maintain Java-based applications. You will work on scalable backend services, collaborating with cross-functional teams to meet business requirements.The ideal candidate has 2–4 years of Java/Spring Boot experience, strong knowledge of REST APIs and...

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 mission to make their lives easier and save them money. As part of our...

Software Engineering Tech Lead / Manager – Java, Javascript, ETLUp to £700 per day (Inside IR35)London / Hybrid (3 days per week on-site)This is a contract resource, so all candidates muste from a contracting background.My client is a high profile organisation who are recruiting for a Software Engineering Tech Lead / Manager with experience of leading,...

Senior Product Engineer (Backend) - AI-Native SaaS Platform | Tripled ARR in 12 months Remote-first (UK) with hybrid London office optionUp to £130,000 + equity Typescript/Node, React, GCP/AWS Senior Product Engineer We're working with a rapidly scaling AI-native SaaS company who raised an impressive Series B round in 2025. Their platform is redefining the...

DescriptionImportant NoteIf you have expertise in technologies that we currently have enough coaches for, we may ask you for permission to keep your details and reach out when we are more confident of demand in those areas.To apply to coach GenAI please head to this job post.Role SummaryWe’re looking for experienced lead engineers or equivalent to lead...

Company DescriptionMiratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain...

Our mission is to enable everyone to build wealth We reinvent how trading and investing work by creating exceptional products people love That takes high standards, high velocity and engineers who own what they ship Today, we serve over 6 million clients, with more than €38 billion in assets under management. At that scale, performance, reliability and...

Company DescriptionDepop is a peer-to-peer circular fashion marketplace where anyone can buy, sell and discover secondhand fashion. Our mission is simple: to make fashion circular by making secondhand as exciting and rewarding as buying new.Founded in 2011, Depop’s diverse community has helped move resale into the mainstream, where buying secondhand is no...

Ready to work somewhere that cares more about how you build software than how fast you can ship it? At Opencast, we don’t measure developers by the number of tickets you complete. We care about engineering craft, clean design and thoughtful problem-solving.    Opencast consultants deliver in complex environments, pairing often and working with others who...

Our client is a digital and technology consultancy.Increase your chances of reaching the interview stage by reading the complete job description and applying promptly.About Us:Our client, part of our client, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an...