senior java backend developer jobs in London

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...

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...

Senior Backend Java Engineer Build software that matters. Shape the future of engineering. We're looking for an experienced Senior Backend Java Engineer who is passionate about building scalable, high-quality software and helping teams grow. This is more than a hands‑on engineering role—you'll influence technical direction, mentor other engineers, drive...

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,...

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...

Our vision is to give everyone the belief they can make their move. We aim to make moving simpler, by giving everyone the best place to turn to and return to for access to the tools, expertise, trust, and belief to make it happen. We’re home to the UK’s largest choice of properties and are the go-to destination for millions of people planning their next...

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...

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,...

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...

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...

Credit Benchmark is a financial data and analytics company transforming how global credit risk is understood and managed. Founded by serial entrepreneurs and backed by leading investors including Balderton Capital and Index Ventures, we’re a fast-growing team of technology, finance, and data experts committed to making financial markets safer and more...

Enterprise Architect (Java J2ee) – BFSI Domain Kryptos Technologies UK Limited London – Contract – 12 months + Key Responsibilities Strategic Engagement & Transformation Leadership Drive architectural discussions with CXOs, business leaders, and technical stakeholders to align technology solutions with business strategy. Understand customer...

Backend Software Engineer / Developer (Python LLM) Remote UK to £90kAre you a backend focussed Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack?You could be joining a scaling AI software solutions provider in a senior, hands-on role.As a Backend Software Engineer you will build production...

Junior Backend Software Engineer. LondonAbout AntareJoin Antare as we go to market. We’ve been busy building the physical security intelligence platform of the future. Our always-connected platform automatically detects risks, captures evidence and reports on real-world events as they happen, delivering intelligent insights through an intuitive user...

Senior Python Developer / Engineer (Python AWS) London / WFH to £130kAre you a Python technologist with experience of Front Office trading environments?You could be progressing your career on the Asset Management side of a global Japanese bank as they expand this product offering within the UK.As a Senior Python Developer, you'll design, develop and enhance...

JPMorgan Chase is looking for a Software Engineer III to join their International Consumer Bank team in London. This role involves developing cutting-edge cloud-native applications while ensuring reliable and secure systems. Candidates should have a solid background in Java, cloud technologies, and a passion for solving complex problems in the financial...

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...

About Octopus Electroverse We’re making electric vehicle public charging simple, by building the giant, virtual charging platform of the future. In just five years, Octopus Electroverse has become Europe’s largest eMobility charging network, with over 1.4 million connected electric vehicle chargers globally across 79 countries. Our customer ecosystem...

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 life easier and save them money.As part of...

Ascendion is looking for Senior Java Consultant in London, UK ! Location: Bromley, UKWorking Model: Hybrid Full-Time role with AscendionWe are looking for a strong Java Consultant with excellent technical capabilities to join a banking technology team working on high-performance applications.Key requirements:Strong Core Java development experienceExcellent...