java software engineer jobs in London

Ambition is seeking a Backend Java Engineer to design, develop and optimise scalable cloud-native services. You will work on distributed microservices, deploy to AWS, and collaborate with cross-functional teams to deliver robust backend systems.You will apply strong Java/Spring expertise, drive best practices, and participate in architecture decisions that...

Why Faculty?We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, we’ve worked with over 350 global customers to transform their performance through human-centric AI. You can read about our real-world impact here.We don’t chase hype cycles. We innovate, build and deploy responsible AI...

Go City is transforming the way people see and experience the world’s greatest destinations.We give our customers total flexibility to choose the experiences, tours and activities they want to visit at incredible savings. Every pass sale, attraction booking and partner transaction at Go City runs on systems our backend team owns. We own the whole stack...

(Python, NodeJS or TypeScript, with React and ideally some AI engineering) Summary This is an exciting team of smart and kind engineers -- and they index for both when hiring. They’re looking for a Senior Software Engineer who can ideally work up and down the stack; the technologies and languages are less important to them. It could be Python, NodeJS or...

## Software Engineer IIIApply: Hybrid Working: London, United Kingdom: Colchester, United Kingdom: Manchester, United Kingdom: Birmingham, United Kingdom: Full time: Posted Yesterday: R26\\_875With a company culture rooted in collaboration, expertise and innovation, we aim to promote progress and inspire our clients, employees, investors and...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Senior Low Latency Java Engineer This is a senior...

A pioneering healthcare startup is seeking a Backend Product Engineer to join their hybrid-remote team in London. You will have the opportunity to work on core backend systems, product features, and collaborate closely with leadership and product teams. The ideal candidate has 2-4 years of experience, a strong foundation in Java and Spring, and is passionate...

JPMorgan Chase within the EDG Technology Org seeks a Lead Software Engineer to shape and deliver trusted, scalable technology products for the firm. You will own critical tech solutions across CDM, DRR, and Rune DSL, contributing as a core technical contributor in an agile team.Responsibilities include creating secure production code in Java, reviewing...

LexisNexis Risk Solutions is seeking a Senior Software Engineer to design, develop and deliver scalable Java-based applications using modern cloud-native practices. You will collaborate with Product, UX, QA and engineering teams to build robust APIs and services, mentor juniors, and contribute to architectural decisions.The role emphasizes cutting-edge...

Job Title: CA Engineer (Java Skills / Tech Lead)Location: London - HybridContract: 6 months, with possibility of extensionClearance: SC Cleared or eligible to obtain SC clearanceWe are currently recruiting for an experienced CA Engineer / Java Technical Lead to support a major technology programme based in London.The successful candidate will provide strong...

Elsevier is seeking a Software Engineer III to design and develop scalable, high-performance identity platform components in Java and JavaScript. You will work on authentication, authorization, and integration with identity providers, building on AWS ECS and EKS, and contribute to AI-assisted development workflows.You will participate in CI/CD pipelines,...

JPMorgan Chase & Co. in London is hiring a Software Engineer III to contribute to end-to-end cloud-native microservices in the International Consumer Bank. You will work with a distributed team on fraud prevention, identity services, money transfers, card payments, lending and onboarding to build secure, scalable software.The role emphasizes strong Java...

LA International is recruiting an experienced Data Engineer with strong Java skills to support a major technology programme in London. The role involves designing, building and maintaining scalable data solutions and services in a technical engineering environment.Key responsibilities include developing Java-based applications, Kafka-based streaming...

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...

Elastic is seeking a Senior Software Engineer for the Elasticsearch team to build foundational infrastructure and shared functionality. You will drive low-level design, ensure performance, security, and maintainability, and collaborate across teams.You will work on serverless orchestration, CI/CD workflows, and enabling Elasticsearch across cloud,...

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...

A leading consultancy firm is looking for a Backend Java Developer for a hybrid role in London. You will build core backend services for a Data Fabric platform, implementing rule engines and working with SQL parsing and distributed data systems. Ideal candidates should have strong experience in Java (17/21), Spring, and a solid understanding of SQL...

Elastic is seeking a Senior Java Developer to join the Elasticsearch team and drive the Inference API efforts. You will work across the plugin framework, REST API, and integration points with external providers, influencing architecture and quality across distributed teams.You will design, implement, and test APIs, streaming, and billing integrations,...

Mirae Asset Securities Co., Ltd. in London invites a Junior/Mid Software Engineer to build a real-time event-driven platform for securities lending, repo and derivatives trading. You will work on Java server-side/UI components and Python ETL pipelines, with direct collaboration with traders and operations teams.The role offers mentorship and exposure to...

A leading tech company in Greater London is seeking an experienced Java Engineer for a 6-month hybrid contract. This role involves designing scalable backend systems and working with modern tools like AWS and Kubernetes. The ideal candidate has strong Java and Spring Boot experience, along with a passion for TDD and microservices. Join a dynamic team working...