12 of 12 Senior Java Engineer Jobs in the UK

Senior Java Software Engineer - Java Developer, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research … machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The Java Software engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some ...

Senior Java Engineer - Payments (ICON IPF) Location: London (Hybrid: 2 days/week in-office) Duration: 12+ Months Sector: Fintech/Tier-1 Banking Role Overview Are you a heavy-hitter in the payments space? We are looking for a Senior Java Engineer with … with some of the world's leading banking institutions. Technical Toolkit To excel in this role, you'll need a seasoned background in modern Java development and a 'cloud-first' mindset: Java Mastery: 5-10 years of experience, with expert-level Java 11 , Spring Boot , and Microservices ...

Senior Java Engineer - Permanent Salary: 55k-65kWorking Arrangement: Fully RemoteTech Stack: Java, Spring Boot and Cloud Platforms(AWS, Azure and GCP)Desirable - Python and JavaScript I am currently working with a leading software software consultancy working with the government for a Senior Java Engineer. … best practices in software development. Essential Proven experience in full-stack software development, including design, development, testing, and deployment. Significant hands on experience with Java, Spring Boot and Microservices. Strong understanding of Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency ...

Hiring: Senior Java & AI/LLM/RAG Engineer (100% Remote, UK) Location: Remote (Must be resident and legally authorized to work in the UK) Type: Full-time Stack Focus: Java 17+, Spring AI, LLMs, Deep Java Library, RAG Architecture, AWS cloud … seasoned Java engineer who has crossed the bridge into the world of Artificial Intelligence? Do you know how to take large language models (LLMs) and turn them into highly secure, production-grade, context-aware enterprise applications using Retrieval-Augmented Generation (RAG)? If you want ...

Senior Software Engineer - (Java, Pricing API,) - 5 days - Retail - London Day rate: £400 - £500 (inside IR35) Duration: 6 months On site: 5 days per week Start: Now My client is looking for a Senior Java Developer with 8 - 15 years experience to join the team … building resilient systems at scale, this could be a great fit. What You'll Be Doing Designing and building scalable backend systems using Java and the JVM ecosystem Developing clean, maintainable code from product requirements Applying TDD/BDD practices and modern engineering principles Building and maintaining cloud-native ...

Role Senior Software Engineer Java .NET FTC Manager Lead Development Manager Location Hybrid Role Overview We are looking for 3 experienced Senior Developers, to support the ongoing evolution of the TMS platform, contributing to the development of modern, scalable solutions within a complex transport and logistics … environment. The role will involve designing, developing, and enhancing business-critical applications across a modern technology stack including Java 1721, Spring Boot 3.x, Angular 16/17, and Flutter/Dart. Working as part of a collaborative engineering team, you will help deliver high-quality software solutions that support ...

Senior Software Engineer (Java/Kotlin) Manchester (Hybrid - 2 days onsite per week) Contract until end of 2026 £731.25/day Umbrella A global travel technology organisation is building a brand-new connectivity platform and requires a Senior Software Engineer to help shape the architecture … engineering standards and technical direction of a newly formed team. This is a hands-on senior engineering role where you'll lead the design and delivery of large-scale backend services and integrations connecting external providers into a high-volume marketplace platform. What you'll be doing Designing ...

Java Software Engineer (FTC) Our client is a tier-one global financial institution currently executing a major, multi-year modernisation of its core capital markets infrastructure. This initiative centers on re-architecting a mission-critical workflow engine to scale throughput by an order of magnitude while embedding advanced … intelligent automation. We are onboarding a high-caliber Java Systems Engineer on a Fixed-Term Contract (FTC) to act as a core technical anchor for this transformation. Role Overview Operating within Global Technology & Operations, you will drive the architectural evolution and optimization of a high-throughput enterprise platform. ...

Senior Software Engineer - Java/Spring/Full stack (Fully Remote) Location: Fully Remote Salary: £50,000 to £60,000 plus strong wider benefits package About the role Our client, a digital consultancy delivering into central government, are looking for a Software Engineer to join … improving how services operate at scale, working closely with client stakeholders and other teams. This is a hands-on full stack role using Java, JavaScript, Spring and AWS in a fast-moving, stakeholder-heavy environment. Key responsibilities Design, build and improve digital services within the DRS workstream Deliver full ...

delivering secure and modern software solutions across the UK Government and Defence sectors. They are now looking for an experienced Principal Full Stack Software Engineer to join their collaborative and forward-thinking engineering team. This is an exciting opportunity for a senior engineer who enjoys staying hands … services that support meaningful and high-impact programmes. What Youll Be Doing Leading the design, development, and delivery of secure full-stack applications using Java, React, and modern web technologies Building scalable back-end services, APIs, and distributed systems Developing responsive and user-focused front-end applications using React ...

Senior AI Engineer (LLMs, Python & Java) Bracknell (Hybrid) What if you could own and build the AI capability from the ground up in a scaling, purpose-driven tech company? Were hiring the first dedicated AI Engineer to join a fast-growing (~280 people) Healthtech organisation making … features that directly impact users. Expect to: Design and implement LLM-based applications (RAG pipelines, agents, copilots) Build scalable backend services using Python and Java Integrate AI into existing cloud-native SaaS platforms Own the full lifecycle: experimentation prototyping production Optimise model performance, cost, and latency in real-world ...

About Us Semantics 21 is a multi-award-winning UK software company developing specialist desktop software used internationally within public safety and investigative environments. Our technology helps organisations process and review digital evidence more effectively ...