staff java backend developer jobs in London

Personio is seeking a Staff Engineer for the Absences team in London. This role focuses on shaping the architecture for managing employee absences across Europe, ensuring correctness and reliability in the systems you develop.The ideal candidate will have extensive experience in backend systems, demonstrate cross-team technical leadership, and display a...

Remote · Full Time · Individual Contributor · +8 Years of Experience Staff Engineer, Money, Risk & Payment Ancillaries Who We Are Yuno is the AI-native operating system of global commerce, powering the financial infrastructure of enterprise merchants, banks, and wallets. Through a single API, Yuno connects them to pay-ins, payouts, fraud prevention,...

Principal Full Stack DeveloperA unique opportunity for a Principal Full Stack Developer to join a very well-funded early-stage technology company. Initially working remotely, with plans for a hybrid London office, you will play a pivotal role in transforming an innovative prototype into a production-ready platform while helping shape the long-term technical...

We're putting together a talented team to build the #1 training platform for RunnersWe help everyday runners become outstanding by building an incredible app providing world-class training, coaching and community for everyone, whether you're improving your 5k time or training for your first marathon.We’re growing extremely fast! In November 2023 we closed...

At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business.Here, you'll do meaningful work that helps millions of...

About us    Founded in 2017, Wayve is the leading developer of Embodied AI technology.  Our advanced AI software and foundation models enable vehicles to perceive, understand, and navigate any complex environment, enhancing the usability and safety of automated driving systems. Our vision is to create autonomy that propels the world forward.  Our...

What’s Yonder? “It's as if Time Out, Amex and Monzo had a baby” - Will T, Yonder Member Yonder combines credit and debit in one membership that’s fair, flexible and actually enjoyable. No jargon. No dusty points system. Just rewards that actually feel rewarding, from bao to beer to a boarding pass. The engineering team sits at the heart of the...

Company DescriptionVersion 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate the rapidly evolving technology landscape. We foster strong partnerships with global technology...

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to...

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...

Our Global Structurethe company is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we're unlocking new possibilities as one global team.Your job is to make sure every payout and transaction lands...

Description At The Multiplayer Group (MPG), we create world-class multiplayer experiences through Co-Dev and Full-Dev partnerships. Our people-first culture supports a diverse, global team in a welcoming and flexible work environment. With teams spread worldwide, we prioritise connection—both online and in person. Giving back is central to who we are, with...

Join an engineering team as a Java Software Engineer building front-office real-time trading software! A highly successful proprietary trading organisation is seeking to hire a Java Software Engineer for their expanding team in London. You will work on the core trading engine building front-office trading solutions used by front-office teams. Role...

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 role Our...

Lead Java Developer  Business Unit: FTSE Russell – Index Platform Company: London Stock Exchange Group (LSEG)  About the Role We are seeking a highly skilled and hands-on Lead Java Engineer with AI proficiency to help build the next generation FTSE Russell Index Platform. This platform underpins the calculation and distribution of FTSE...

📍London, or Remote UK  | Salary £140-£175,000 + stocks + benefits | Hear from the team ✨  About our Machine Learning, Financial Crime Team: Our Financial Crime Data team consists of over 25 people across 4 data specialisms: Analytics Engineers, Data Analysts, Machine Learning Scientists and Data Scientists. Our financial crime team has a huge impact...

Synthesia is the world s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping...

TL;DR: We're looking for exceptional ABAP engineers eager to build the AI layer for operating the world’s most complex IT setups. This role moves beyond just ABAP: you’ll develop software across the stack, design AI harnesses and agents, influence product direction, and work with customers.Why ConductToday, no single person fully understands their ERP...

About Sientia Sientia is building the infrastructure that makes card-linked and Open Banking loyalty actually work at scale. We sit at the centre of a network connecting the UK’s biggest banking and payments platforms - Revolut, Lloyds/Cardlytics, Monzo, Tide, Santander, British Airways and more - with brands who want to reach and reward real customers...

We're recruiting on behalf of a leading financial firm that leverages cutting-edge technology to deliver liquidity to global markets and innovative, transparent trading solutions to clients. As a market maker, our client provides deep liquidity that helps create more efficient markets around the world, with market structure expertise, broad diversification,...