Java Software Engineer Core Java Jobs in UK

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Software Engineer, Equity Index Options Low Latency

A leading trading firm in Greater London is seeking a Software Engineer to design and develop proprietary software for trading systems. This role requires an undergraduate degree in a relevant field and at least 2 years of experience in programming languages like Java, C++, and Python. The successful candidate w ...

Senior Backend & Platform Engineer, Cloud Infra

A leading technology company in London is seeking a Senior Software Engineer to design and build backend services that power its systems. In this hybrid role, you will collaborate with teams to develop production-grade services, maintain CI/CD systems, and manage AWS infrastructure. Candidates should have strong ...

Senior AI Driven Backend Engineer Cloud & Big Data

A leading financial technology company in the United Kingdom is seeking a Sr. Software Development Engineer to join their Alternative Assets Engineering team. The ideal candidate has over 6 years of experience programming in Java and a strong background in financial markets. Responsibilities include developing s ...

AI Driven Backend Engineer – FinTech & Scale

A leading technology platform in the United Kingdom is seeking a Software Development Engineer to develop high-quality software solutions for investment analysis. Ideal candidates will have 4+ years of Java programming experience, strong problem-solving skills, and familiarity with financial markets. The role fo ...

Senior Software Engineer – Scalable Real Time Data Systems

A data solutions company based in Manchester is seeking a Senior Software Engineer to enhance their data processing capabilities. The successful candidate will have over 6 years of experience in software development, strong coding skills in Java and Python, and experience with big data technologies. This role of ...

Senior Software Engineer Hybrid, Tech Leader

A leading defense technology company in Bristol is seeking a Senior Software Engineer to develop innovative software solutions. In this role, you will leverage your expertise in programming languages like C#, C++, or Java, and work closely with cross-functional teams. You will be responsible for maintaining codi ...

Senior Software Engineer, Lending Platform

A leading fintech company in the UK seeks a Senior Software Engineer to architect and implement robust systems for a new lending platform. The successful candidate will design secure APIs and lead engineering teams to provide seamless credit solutions for enterprise clients. Required qualifications include 5+ ye ...

Secure Cloud Software Engineer (Hybrid, Clearance Eligible)

Gemba Advantage is looking for a Software Engineer in Cheltenham to contribute to secure digital products for public sector organizations. The ideal candidate should have a strong foundation in software engineering principles and experience with modern languages like Java, TypeScript, or Python. This is a hybrid ...

Principal AI Governance Platform Architect

J.P. MORGAN is looking for a Principal Software Engineer in Greater London to lead AI Governance Engineering efforts. The role involves designing and building governance platforms, developing reusable services, and ensuring compliance across AI/ML delivery lifecycles. Candidates should have strong software engin ...

Principal Software Engineer, Retail Tech & Pricing

A leading digital retail company in Liverpool is looking for a Principal Software Engineer. In this hands-on role, you'll design and run software solutions, lead teams, and foster best practices. Ideal candidates will have extensive Java and AWS experience, mentoring skills, and a passion for high-quality engine ...

Lead Backend Engineer Cloud Native Microservices

A major global banking institution is seeking a Lead Software Engineer to develop cloud-native applications in a collaborative environment. The ideal candidate will possess strong Java programming skills and experience with cloud technologies, particularly AWS. Responsibilities include delivering end-to-end solu ...

Hybrid AI Software Engineer — Manchester, Production AI

Vanguard is seeking an AI Software Engineer in Manchester to design and maintain AI services and platforms for European teams. Ideal candidates should have 3-6 years of software engineering experience, strong programming skills in languages such as Java or Python, and hands-on experience with AI and machine lear ...

eDV Cleared Software Engineer Lead Backend & Cloud

iO Associates is looking for a Software Engineer to join their team in Manchester, Gloucestershire, or London. The ideal candidate will have strong skills in Backend development using Java (Spring Boot, Maven) or Python, alongside experience in DevOps practices including CI/CD pipelines and AWS environments. Thi ...

Senior Backend Engineer for Scalable Data & AI Systems

A data-driven software company in Greater London is seeking a Backend Software Engineer to lead the architecture and development of scalable backend services. The role involves building robust APIs, collaborating with other engineers, and optimizing performance. Candidates should have 6+ years of experience in b ...

Backend Software Engineer Crypto Trading (Hybrid, London)

A leading technology firm is seeking a Software Engineer to develop backend systems for institutional crypto trading. The ideal candidate will have over 3 years of experience in software engineering, particularly with Go, Java, C++, C#, or Python. Responsibilities include maintaining services for trading and set ...

Senior Security Engineer: Secure, Scalable Apps

A leading global financial services firm is seeking a Software Engineer III to join their agile team in Bournemouth, England. The successful candidate will design and deliver trusted market-leading technology products. Responsibilities include developing secure production code, analyzing large data sets, and con ...

Senior Software Engineer — Agentic Infrastructure

A global technology leader is seeking a Senior Software Engineer to architect agentic infrastructure that unifies fragmented domains. You will partner with Engineering Leads and Product Managers to shape automation roadmaps while ensuring that Google’s standards are met. This role requires strong experience in s ...

VP, Full Stack Engineering – Lead Scalable, Secure Systems

A leading financial services firm is seeking a Vice President, Full Stack Engineer to lead high-impact engineering teams in London. This role requires proven leadership in software engineering, deep Java expertise, and strong DevOps practices. The ideal candidate will own the end-to-end delivery of critical soft ...

Blockchain Software Engineer II DLT & Digital Assets

A global financial services leader is seeking a Software Engineer II in London to design, develop, and deliver blockchain applications. The role involves collaborating with experienced engineers, developing secure services using Java, Python, and TypeScript, and contributing to high-impact projects. Candidates s ...

Manufacturing IT/OT Software Engineer — On Site, PLCs & Cloud

A leading technology firm in Darlington, County Durham is looking for a talented Manufacturing IT/OT Software Engineer. The role involves designing, developing, and implementing software solutions for cloud-based systems, alongside project management and collaboration across teams. Candidates should have a Bache ...

Senior Platform Engineer: AI Driven SDLC & Cloud Ops

A diversified trading firm is seeking a skilled Software Engineer to design and maintain build/release/run tooling for development teams. Candidates should have six or more years of experience in software engineering and proficiency in GitHub Actions and at least one programming language such as Python, Go, Java ...

Senior C/C++ Developer (with Java experience) in Belfast Version 1

Senior C/C++ Developer (with Java experience) Belfast, UnitedKingdom Posted 9 months ago Tech stack Java C TypeScript JavaScript Windows React Requirements Development on a Windows en ...

Senior Java Architect: Cloud Native, DDD & Microservices Lead

A leading financial markets infrastructure provider in the UK seeks a Principal Java Architect. This mid-senior level role involves leading the design and governance of Java platforms, ensuring best practices, and enhancing the development ecosystem. The ideal candidate will have deep Java expertise and a strong ...

Low Latency FX Java Developer Front Office Trading

A global consulting group in London is seeking a highly skilled eFX Java Developer. This role involves designing and maintaining low-latency Java applications for electronic FX trading systems, collaborating with front-office teams, and implementing algorithmic trading strategies. The ideal candidate has strong ...

Staff Software Engineer, Traffic Team

Locations In this role you can work from Remote, United Kingdom Overview GitHub is changing the way the world builds software, and we want you to help lead this effort. The Traffic Team plays a critical role in GitHub's scalability and resiliency. GitHub’s Traffic team i ...

Senior Backend Engineer Contractor (Java, Python, Rust + Ruby nice to have) | Fully Remote / EU[...]

Senior Backend Engineer Contractor (Java, Python, Rust + Ruby nice-to-have) | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep expe ...

Senior Java Full Stack Engineer — AI Driven Cloud Microservices

TopTek Talent is seeking a Senior Full Stack Engineer to design and develop robust software solutions. The ideal candidate will have extensive experience in Java and Spring Boot, along with cloud fluency in AWS. Key responsibilities include taking ownership of technical architecture and leveraging AI-assisted to ...

Senior Full Stack AI Engineer (Java/React) — Lead Architect

A fast-growing tech firm is seeking a Senior Full Stack Developer to work on AI-powered tools that support critical decision-making. You'll handle a React frontend and Java/Spring Boot backend, guiding architecture, mentoring developers, and driving engineering standards. Offering up to £85k in salary with addit ...

Senior Java Quant Trading Engineer: Low Latency, High Impact

A leading Quant Trading firm in London is seeking a Senior Java Developer to design and build low-latency trading systems. You will work with traders and quants to optimize performance and tackle complex engineering challenges in a fast-paced environment. The ideal candidate has expert-level Java skills, proven ...

Senior Software Engineer Payroll (Python/Django/React)

Java Script Works is seeking a Senior Software Engineer for a contract role in London. The ideal candidate should demonstrate strong written and verbal communication skills and effectively collaborate across diverse functional teams. Experience with Python, Django, and React is a plus. This position offers compe ...

London Compute & Serverless Engineer (Rust/Go)

WorksHub is seeking a Software Engineer in London, United Kingdom, to work full-time on building and enhancing compute, storage, and data platforms. Proficiency in programming languages like C, Rust, Go, and Java is required. The role involves working with open source technologies, particularly Kubernetes. Candi ...

Silicon Engineering: Quality Automation Engineer

A leading technology company in Cambridge is seeking a Quality Automation Engineer to enhance the reliability of software tools in their chip design process. The role requires experience in programming (Scala/Java) and CI/CD environments. You'll collaborate with teams to define validation strategies, maintain te ...

Lead Full Stack Engineer for Public Sector Transformation

A leading digital transformation consultancy in the UK seeks a Lead Full Stack Software Engineer to take ownership of complex public sector solutions. You will guide teams through architecture, design, and delivery. The ideal candidate has extensive experience with .NET, Java, or Python and excels in Agile envir ...

Senior Research Engineer — Quantitative Data & Backtests

A technology consulting firm in London is seeking a Research Engineer with strong software development skills. The role involves streamlining processes, managing market data, and enhancing research frameworks. Required qualifications include expertise in Python, Java, and SQL, alongside a relevant degree. This p ...

Full Stack Software Engineer (Java + React)About the Role: in London S&P Global

Experience and Skills Proven experience with modern web technologies, including: Java/J2EE Hibernate Microsoft Office Automation Python R REST/OData AWS Angular/React Tomcat JMS SQL < ...

Senior Software Engineer AI Driven FinTech Platform

Clearwater Analytics is looking for a skilled software engineer to join their Alternative Assets Engineering team. This role requires at least 6 years of professional Java programming experience and a strong understanding of financial markets. The engineer will work on developing solutions related to fund analyt ...

Principal Software Engineer

Overview I'm working with a software company that's looking for a Principal Software Engineer to join their team. They have developed a product that utilises data analytics and machine learning to optimise inventory data, built primarily on Java. This is a key role where you'll tak ...

Principal DevOps Engineer multiple roles

Principal DevOps Engineer (Senior Individual Contributor)FinTech | Reports to VP DevOpsOur FinTech client is looking for a Principal DevOps Engineer to play a pivotal role in shaping how their engineering teams build, deploy and operate software at scale.T ...

Principal DevOps Engineer multiple roles

Principal DevOps Engineer (Senior Individual Contributor)FinTech | Reports to VP DevOpsOur FinTech client is looking for a Principal DevOps Engineer to play a pivotal role in shaping how their engineering teams build, deploy and operate software at scale.T ...

Senior Software Engineer C# (Hybrid Remote)

Senior Software Engineer £56000 - £70000 p/a + BUPA, bonus and full benefits Lockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and complex program management for global security, civil and commercial markets. Simply sta ...

Senior PHP Software Engineer (Remote)

Senior Software Engineer £56000 - £70000 p/a + BUPA, bonus and full benefits Lockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and complex program management for global security, civil and commercial markets. Simply sta ...

Senior Software Engineer C# FLEXIBLE WORKING

Senior Software Engineer £56000 - £70000 p/a + BUPA, bonus and full benefits Lockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and complex program management for global security, civil and commercial markets. Simply sta ...

Senior Software Engineer (C# / SQL Server)

Senior Software Engineer £56000 - £70000 p/a + BUPA, bonus and full benefits Lockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and complex program management for global security, civil and commercial markets. Simply sta ...

Senior Software Engineer (C# / JavaScript)

Senior Software Engineer £56000 - £70000 p/a + BUPA, bonus and full benefits Lockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and complex program management for global security, civil and commercial markets. Simply sta ...

Low Latency FX Java Developer Front Office Trading

A global consulting group is seeking a highly skilled eFX Java Developer to join their team in London. This role focuses on designing and maintaining low-latency Java applications for eFX trading systems. The ideal candidate will have strong experience in front-office systems, connectivity, and algorithmic tradi ...

Java Swing Developer for High Performance Trading UI

A financial technology firm in Greater London is seeking a Java Swing Developer to enhance its high-performance desktop trading platform. This role includes maintaining a Java Swing-based UI and transitioning the architecture to microservices. The ideal candidate will have strong Core Java skills, experience wit ...

Solutions Architect

A major financial market infrastructure is undergoing a multi-year transformation, moving from legacy COBOL-based systems on HPE NonStop to a modern, event-driven, Java-based architecture. This is not a simple migration. It’s a fundamental shift toward scalable, platform-independent systems built on ...

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    Java Software Engineer Core Java Jobs in United Kingdom Job Search Guide, Trends and Insights