staff java backend developer jobs in London

Tech Lead (Android) | AI-First Mobile Engineering | Hybrid in London (1-2 Days per Week) | Up to £120k + Bonus + Benefits We're partnering with a global technology business that is investing heavily in the future of mobile engineering and looking for an experienced Android Tech Lead to help shape the next generation of mobile experiences. This is an...

Role/Team overview Join the Release Engineering team and play a key role in delivering reliable, high-quality software releases across Broadband and Entertainment devices. You will coordinate release planning, build management, readiness, deployment and risk, working closely with Development, QA, Product and Operations to support stable customer...

## Lead Web3 Engineer - Digital Assets PlatformApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26983950**26983950 Lead Web3 Engineer - Digital Assets Platform****Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of...

Senior Software Engineer – Java (Contractor)ContractorStart Date: ASAPFully remote within HungaryAs a Senior Software Engineer (Java) – Contractor at Beyond Sports, you’ll be focused on delivering robust, high-performance backend services and APIs that power digital experiences for millions of sports fans globally. This role is ideal for an...

Harnham in London is hiring for an AI-first backend role, blending Java or Kotlin on the Spring stack with modern AI-powered workflows. The role involves contributing across the full stack and collaborating in agile squads to deliver high-quality products.You will use Claude and N8N to automate workflows, work with APIs, CI/CD, AWS, Docker and Kubernetes,...

We power people’s progress.At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.We’ve just reached unicorn status with a $150M...

This role is available across our London, Bristol and Manchester locationsThe Government Digital Service (GDS) is the digital centre of government. We are responsible for setting, leading and delivering the vision for a modern digital government.Our priorities are to drive a modern digital government, by:joining up public sector servicesharnessing the power...

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.We’ve just reached unicorn status with a $150M Series D, accelerating our...

YRA Solutions Ltd. is seeking a Software Engineer II to enhance the CrunchTime platform, which serves modern university needs. You will design, build, and ship features within a small, agile team, directly impacting the product's evolution.The ideal candidate holds a Bachelor’s degree and has 3+ years of software engineering experience, particularly in...

The Subscriptions mission helps people discover the right Spotify experience for them and supports the entire journey from free to paid. Our teams build products and services that make it easier for listeners around the world to understand the value of Spotify Premium while enabling sustainable growth for the business.The Markets & Subscriptions team...

About 9fin9fin is the AI platform powering global debt markets — the world’s largest asset class at over $145 trillion.Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis,...

Senior Full Stack Kotlin Developer £57,000 to 72,000 GBP Bonus Hybrid WORKING Location: Central London, Greater LondonReady to apply Before you do, make sure to read all the details pertaining to this job in the description below.- United Kingdom Type: Permanent Senior Full Stack Kotlin Developer Salary: £57,500- £72,000 Locations: Leeds, Manchester,...

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the...

About The RoleWe are looking for an experienced Java Developer to join a high-performing engineering team delivering critical technology solutions within a global investment banking environment.The role is focused on building secure, scalable and production-grade applications using modern Java technologies. You will work across backend services and APIs,...

Virtu is seeking an Atlas Developer in London to design, develop, and maintain its front-to-back trading infrastructure, covering order management, exchange connectivity, smart order routing, internalisation, and clearing. You will work across frontend and backend projects using Java, Go, and C++, focusing on low-latency, scalable systems and...

We are seeking a highly skilled Scala Developer to join our Technology team. In this role, you will design, develop, and maintain high-performance APIs, backend components, and integrations that power our application platform. The ideal candidate will have strong expertise in Scala, Java, and MySQL, with a passion for building scalable and reliable software...

Описание:Insightful Technology delivers SaaS solutions that help organisations reduce the costs, risks, and complexities of regulatory compliance. Its open, global, and holistic platform provides data storage, normalisation, and real-time analysis across multiple sources, supported by an immutable auditable ledger and secure API...

Orbital Industries is an AI Industrial company, with frontier AI embedded at every step in the production of critical physical products - from creating advanced materials to engineering and manufacturing.Every Orbital Industries product is developed using CurieOS, our AI operating system, uniting AI-automated hardware engineering with AI-designed material...

Virtu is a leading financial firm that leverages cutting edge technology to deliver liquidity to the global markets and innovative, transparent trading solutions to our clients. As a market maker, Virtu provides deep liquidity that helps to create more efficient markets around the world. Our market structure expertise, broad diversification, and execution...

DescriptionFlexTrade Systems is a provider of customized multi-asset execution and order management trading solutions for buy- and sell-side financial institutions. Considering making an application for this job Check all the details in this job description, and then click on Apply. Through deep client partnerships with some of the world's largest, most...