staff java backend developer jobs in London

Ripple is seeking a Staff Software Developer to lead the modernization of our liquidity platform. You will architect, implement and scale core components, balancing speed and reliability while guiding a world-class engineering team.You will mentor engineers, shape coding standards, and drive strong practices in observability, CI/CD, and production readiness...

Airswift in London seeks a Senior or Lead Full Stack Engineer to deliver an AI-assisted enterprise asset management platform, covering frontend, backend, workflow and cloud delivery.You will build UI with React/TypeScript, develop Java backends, APIs, Postgres, and CI/CD pipelines, leveraging AI tools like GitHub Copilot to boost productivity. Hybrid work...

A leading technology company in Greater London seeks a Backend Software Engineer to lead the architecture and development of high-performance backend services. The role involves designing efficient data structures, building robust APIs, and collaborating with cross-functional teams. Ideal candidates will have 6+ years of experience, proficiency in backend...

We Are SpartaSparta is the next-generation commodity trading platform. We give trading desks the clarity, control, and collaboration they need to move faster and trade smarter.In February 2025, we secured $42 million in Series B funding. Now we’re scaling up across the business, and it’s an exciting time to join.Our people are the driving force behind...

Institutional Fabric for the Digital Asset MarketFounded in 2018, Talos provides institutional-grade trading technology for the global digital asset market, powering many of the major players in the crypto ecosystem. Our mission is clear: to advance the mass adoption of digital assets by seamlessly connecting institutions to the digital asset ecosystem. We...

Software Engineer | Technical ConsultancyScroll down to find an indepth overview of this job, and what is expected of candidates Make an application by clicking on the Apply button.Want real autonomy, genuinely interesting technical problems and work that matters across policing, national security and central government?Our client is a fast scaling boutique...

Scroll Home, a London-based video-first property discovery app, is seeking a Senior/Staff Backend Developer to join a hybrid team in London. You will own core backend APIs, scale data pipelines, and lead architecture for feeds, real-time workflows, and video delivery as the product grows.The role demands 10+ years of backend experience with consumer-scale...

Principal Software Engineer Salary to £80k, poss higher for their ‘Unicorn' candidate Role can be based remotely, as long as you can occasionally travel to London for client work (travel expenses paid)- approx. once a month. NB: Please only apply if you are a UK National & UK passport holder, have resided in the UK for the past 5 years and are prepared to...

About AirwallexAirwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 676,000 businesses, including McLaren Racing, Qantas, SHEIN, and TikTok, use us, directly or through our platform partners, to run their financial operations or build and monetize financial products of their own.We started in Melbourne in 2015...

Senior Full Stack Engineer - Financial ServicesWe're working with our client, an innovative, AI-native financial services firm, to find a Staff Software Engineer to join our client's team. In this role you'll be part of a remote-first product engineering squad, owning solutions end-to-end - from idea to production - and building the intelligent workflows and...

We are building the financial system for the next century. One where control sits in the hands of customers — not banks. Where money moves on rails that are faster, smarter, and radically more efficient. Where wealth management tools help you grow your savings for decades — and build generational wealth. Where fewer intermediaries mean more value stays...

About this role What are Aladdin and Trading Engineering?? ? You will be working on BlackRock's investment operating system called Aladdin.All potential candidates should read through the following details of this job with care before making an application.Aladdin is used both internally within BlackRock and externally by many financial institutions.Aladdin...

About the roleMethods is a £100M+ IT Services Consultancy who has partnered with a range of central government departments and agencies to transform the way the public sector operates in the UK. Established over 30 years ago and UK-based, we apply our skills in transformation, delivery, and collaboration from across the Methods Group, to create end-to-end...

OverviewThis range is provided by Fynity. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Principal Software Engineer (Java)London – 1 day a week onsiteJoin a FinTech Powering the Future of PaymentsAre you a seasoned individual contributor looking for a step up into a senior position within a...

1120 NG UK Limited. is seeking a Lead Software Engineer with the requirement of UK citizenship and high-level government clearance. The role involves owning deliverables, mentoring junior developers, and collaborating throughout the software development lifecycle.Key qualifications include backend Java or frontend React development experience, along with...

We are building the financial system for the next century. One where control sits in the hands of customers — not banks. Where money moves on rails that are faster, smarter, and radically more efficient. Where wealth management tools help you grow your savings for decades — and build generational wealth. Where fewer intermediaries mean more value stays...

The Experience team designs Spotify’s consumer experience—end to end, moment to moment, across every screen, platform, and partner integration. Our mission is to make listening feel effortless, personal, and joyful for billions of users around the world. That means turning complexity into clarity across hundreds of touchpoints—from our mobile and...

About the BusinessLexisNexis Risk Solutions is the essential partner in the assessment of risk. Within our Business Services vertical, we offer a multitude of solutions focused on helping businesses of all sizes drive higher revenue growth, maximize operational efficiencies, and improve customer experience. Our solutions help our customers solve difficult...

OverviewVacancy for Lead Developer Java/Scala at The National Archives (UK)23 January 2023LondonFull-TimePerson specificationAbout youYou are an enthusiastic and organised individual who is keen to join a growing team and make a positive contribution. You have the confidence to advise and support our users as they send us increasingly complex digital...

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...