senior java developer jobs in London

Backend Java Developer – Data Fabric / Platform Engineering Location: London (Hybrid)Employment: PermanentSalary: £70,000 – £90,000 base (dependent on experience) If your idea of backend engineering is more than CRUD APIs and microservices boilerplate — this role is for you. We’re building the core backend services of a Data Fabric platform that...

A leading energy company is seeking a Senior Software Development Engineer in Test to design and maintain automated testing frameworks. You will play a key role in building enterprise-level testing solutions and integrating best practices within the Agile framework. The position offers a competitive salary of £65-75k and the opportunity to work on impactful...

Expedia Group is looking for a Software Engineer to design, develop, and deliver scalable features for the Credit platform. You’ll work in a collaborative, fast-paced environment, using Java/Kotlin and modern microservices architectures.You will participate in architectural discussions, implement RESTful APIs, and collaborate with product managers,...

Are you passionate about building modern, scalable software solutions that make a meaningful impact? Do you enjoy collaborating across global teams, solving complex technical challenges, and using emerging technologies to drive innovation? About the Business LexisNexis® Risk Solutions provides customers with solutions and decision tools that combine public...

Java Developer ( SC Eligible/SC Cleared )London, United Kingdom | Posted on 10/11/2026Scrumconnect Consulting is a multi-award-winning UK digital consultancy. We help public and private sector organisations design and deliver better digital services, working in agile, multidisciplinary teams on services used by millions of people every day.Role OverviewWe...

Senior Java Developer Department: Platform Delivery Employment Type: Permanent - Full Time Location: London Description We are looking for an experienced Senior Java Developer to join the engineering team at Xantura, helping to design, build, and evolve our cloud-based data and analytics platform used by local authorities and public sector organisations...

Marks & Spencer is seeking a Senior Software Engineer to advance its Payments Platform, powering secure online payments across M&S digital channels. You will design and build high-volume, resilient backend services and APIs, owning features end-to-end, from design to deployment and production support.The role emphasizes performance, observability, and...

Elastic is seeking a Senior Software Developer for the Elasticsearch Security team in the United Kingdom. You will shape architecture, design, and delivery of core security features, including authentication, authorization, and tenant isolation, at scale.You will collaborate across engineering and product leadership to embed security into new customer...

Job TitleSenior Java/FIX Engineer - IG PrimeJob DescriptionPrime Java/FIX EngineerSo, who are we?IG Group is a FTSE 100 fintech operating across five continents, serving over 1.4m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation; it's how we've always operated. What that means for...

Areti Group | B Corp™ in the UK is recruiting a Java/Kotlin Developer to join a major public sector programme. You will design, implement and maintain backend services in Java and Kotlin, collaborating with cross‑functional teams.Experience in a UK Government environment is essential, with monthly travel to London, Leeds or Manchester and eligibility for...

Department: Platform Delivery Location: London Description We are looking for an experienced Senior Java Developer to join the engineering team at Xantura, helping to design, build, and evolve our cloud-based data and analytics platform used by local authorities and public sector organisations across the UK. This is a hands-on senior engineering role...

Senior Software Engineer I (Java & JavaScript)Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript?About the team:You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier’s global product suite. We build and operate a highly...

We are on the lookout for a Senior Software Engineer to join our Elasticsearch team and focus on ensuring that the shared platform functionalities of Elasticsearch are easy to use, performant, maintainable, and secureThe team’s mission is to create foundational infrastructure and shared functionality that enables engineers to develop, extend, and support...

A leading IT Consultancy is seeking a Java Developer on a contract basis to work on a project with a leading telecoms client.You will be needed to work onsite in London 3 times a week.The Java Developer must have strong experience in Java, Spring and AWSExperience required:Strong Java and Spring knowledge and experience with technologies such as AWS,...

HireHi ищет квалифицированного разработчика для создания Forms capability: бэкенд на Java 21/Spring Boot 3 и фронтенд на React/Vite/TanStack. Приложение разворачивается в контейнерах на AWS EKS и интегрируется с Cognito, S3 и SES через...

Myn in London is recruiting for a Senior Java Engineer to join teams building and evolving large-scale, business-critical technology platforms.You will design, build and enhance Java-based services and APIs as part of an experienced engineering team across development, modernisation and continuous improvement. This role emphasizes performance, resilience and...

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team...

Senior Java Engineer – Payments UK Wide | Mainly Remote | Up to £75,000 + BenefitsLike the look of this opportunity Make sure to apply fast, as a high volume of applications is expected Scroll down to read the complete job description.We're looking for an experienced Senior Java Engineer with hands-on ICON IPF experience to join a team delivering...

Senior Java Engineer PaymentsUK Wide | Mainly Remote | Up to £75,000 + BenefitsWe're looking for an experienced Senior Java Engineer with hands-on ICON IPF experience to join a team delivering large-scale payment technology solutions for major banking clients. xpwpeyx This is a hands-on engineering role, working with modern cloud-based architectures and...

OverviewSenior Software Engineer - London at Zopa Bank. Join to apply for the Senior Software Engineer - London role at Zopa Bank.We started our journey back in 2005, building the first ever peer-to-peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like about finance and does the opposite....