senior java software engineer jobs in London

IFS is a leading AI-driven enterprise software company seeking a senior full‑stack engineer to design and deliver scalable APIs and cloud-native services. You will own API-first components and collaborate across cross-functional teams, including AI, Platform Engineering, Product, and Design.You’ll mentor engineers, promote best practices, and help raise...

WHO WE AREZeta Global (NYSE: ZETA) is the AI-Powered Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to make it easier for marketers to acquire, grow, and retain customers more efficiently. Through the Zeta Marketing Platform (ZMP), our vision is to make sophisticated marketing simple by unifying...

Civica is looking for a Senior Software Engineer to join our engineering team in the UK. You will design, develop, and implement scalable software, lead code reviews, and mentor junior engineers while working with product managers and designers to deliver high-quality solutions.You should be proficient in Go and React, with experience in C#, .NET and...

Elsevier’s NPRE team is shaping the next generation of peer review tools. As a Senior Software Engineer, you will build cloud-hosted applications to support researchers through submission and peer review, while evolving our AI-enabled capabilities.You will collaborate with Agile and DevOps teams, design scalable systems, and mentor colleagues to raise the...

Winton is seeking a Senior Software Engineer to design, build and evolve resilient, event-driven, cloud-distributed systems. You will own end-to-end solutions and collaborate with operations, fund accounting and senior management to translate business needs into robust technical design.The role emphasizes strong CS fundamentals, clean code, test automation...

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 move,...

Senior Software Engineer - Front End - Studio (Core) London, UK About Clear Street Clear Street’s mission is to give every sophisticated investor access to every asset, in every market, through a unified platform built for speed, transparency and scale. We give our clients the technology, tools, and service once reserved for the largest institutions,...

On seeks a Senior Lead - Staff Software Engineer to architect and scale our global retail technology infrastructure. You will bridge retail strategy and engineering, connecting POS, ERP, OMS and replenishment platforms with cloud-native, event-driven design and robust security.You will drive technical standards, lead complex integrations across online and...

Company Description 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...

Kargo is hiring a Senior Software Engineer to join the In-App ad delivery team, spanning client- and server-side engineering across multiple stacks. You will help lead the In-App team in delivering new integrations that maximize in-app revenue, handling billions of ad requests and enabling clients to act on insights from millions of ads.You will own key...

MAXTRAMAX is seeking an experienced Senior AI Software Engineer to design, build, train, and deploy advanced AI solutions for commercial, government, and security-focused applications. You will lead AI model development, collaborate with cross-functional teams, and contribute to strategic AI initiatives.The role emphasizes scalable architectures, DevSecOps...

JPMorganChase is seeking a Senior Lead Software Engineer in Payments Technology in London to set the architecture for B2B agentic commerce and ML models, guiding the team toward secure, scalable production systems. You will integrate AI and automation while partnering with cross‑functional teams to deliver resilient technology products.The role emphasizes...

Elsevier Limited is seeking a software engineer to design, build, and operate secure cloud-based services in AWS. You will contribute to an Agile team, implement CI/CD, and help shape engineering standards while mentoring colleagues.The role focuses on scalable, production-ready software with monitoring, alerts, and an emphasis on reliability and security...

Capitolis in London is seeking a Senior Software Engineer to design and build scalable, secure Java-based solutions and drive architectural decisions across the P.O products. You will work with product managers and R&D to implement roadmap features using Spring Boot, Docker, and cloud services.The ideal candidate has a strong computer science background, 8+...

Duration: Until Sep 4th Location: Toronto or Waterloo (Primary location is Waterloo. Remote candidates will be considered however must be in EST time zone)*Needs to be eligible for Reliability Clearance (Should have lived in Canada for 5 consecutive years)Join a platform engineering initiative building a new API and microservices ecosystem from the ground up...

Our Asset and Wealth Management division is driven by innovators like you who are driven to create technology solutions that make us work more efficiently and help our businesses grow. It's our mission to efficiently take care of our clients' wealth, helping them get, and remain properly invested. Across 27 cities, our team of 4,600 agile technologists...

Our client is a leading global investment bank.JOB DESCRIPTIONScroll down the page to see all associated job requirements, and any responsibilities successful candidates can expect.Out of the successful launch of our client in 2021, we're a new team, with a new mission. We're creating products that solve real world problems and put customers at the center -...

SENIOR MACHINE LEARNING ENGINEERUK | Hybrid / RemoteWe’re looking for a Senior Machine Learning Engineer to join a growing AI team, developing and deploying cutting-edge AI solutions for clients across sectors including government, finance, retail, energy, life sciences and defence.You’ll take a hands-on role designing, building and deploying scalable,...

Perk seeks a Senior Software Engineer who embraces ownership of the full feature lifecycle—from discovery with product to deployment and impact measurement. You will drive architectural decisions, set technical standards, and lead cross-functional squads in a fast-paced, AI-enabled environment.You’ll shape the roadmap, mentor peers, and raise overall...

Elsevier is hiring a Software Engineer for the NPRE team, based in Oxford or London. You will design, develop, and deploy cloud-hosted applications, collaborating with researchers, editors and developers across the peer review journey.We value experience with Java/Spring Boot, JavaScript/TypeScript, Docker, Kubernetes and AWS, plus CI/CD, Agile practices and...