Senior Java Backend Engineer - 13,317+ job offers

Backend Engineer | £500 - £550 We're working with a global music streaming giant and digital media powerhouse on this exciting opportunity. Step into the Platform Developer Experience (PDX) tribe and take ownership of the infrastructure powering over 3,000 engineers and hundreds of thousands of dail

Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right . Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Dri

Company Overview At Motorola Solutions, we believe that everything starts with our people. We’re a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. We build and connect technologies to help protect people, property and places. Our solutions foster t

About Us Owkin is an AI company on a mission to solve the complexity of biology. It is building the first Biology Super Intelligence (BASI) by combining powerful biological large language models, multimodal patient data, and agentic software. At the heart of this system is Owkin K, an AI copilot and

Insight International (UK) Ltd

Role: Java Backend Microservices Engineer Location: Edinburgh (3days/week On-Site) Job Type: Contract Job Description: A senior-level Java Developer to manage a critical project for one of our biggest clients in the banking domain. The Individual should be passionate about technology, experienced in

Software Engineer - Active SC, Java, Microservices Up to £550 per day (Inside IR35) London / Remote 6 months My client is an instantly recognisable consultancy who require a strong Software Engineer with Active Security Clearance (SC) and with deep expertise in Java (Spring Boot) to join a large-sca

The Backend Software Engineer is responsible for designing, developing, and maintaining scalable backend systems that power the company’s digital platforms. This role focuses on building secure, high-performance applications using Laravel, NodeJS, PostgreSQL, Docker, and AWS. The successful candidat

We're working with a rapidly expanding manufacturing technology innovator on this exciting opportunity. This is a rare chance to join a founding in-house software team and lead a high-impact greenfield project. You will leverage a modern stack featuring Java 17, Spring Boot, and AWS to build a best-

Join a specialist consultancy delivering secure, high-impact software solutions at the heart of national security and intelligence operations. This role plays a key part in building the systems that turn complex data into actionable insight. Role Overview: Location: Cheltenham, London or Manchester

Join a specialist consultancy delivering secure, high-impact software solutions at the heart of national security and intelligence operations. This role plays a key part in building the systems that turn complex data into actionable insight. Role Overview: Location: Cheltenham, London or Manchester

A prominent IT consultancy is actively searching for a talented Full Stack Engineer to join their team on a permanent basis. The ideal candidate will possess extensive experience in developing robust web applications using Java (Spring Boot), HTML, CSS, and JavaScript/TypeScript. This role offers an

hackajob is collaborating with Tesco to connect them with exceptional professionals for this role. About The Role As a Principal Software Development Engineer within the Supply Chain & Fulfilment domain, you’ll drive the technical direction of some of Tesco’s most critical services. You’ll colla

We're working with a rapidly expanding manufacturing technology innovator on this exciting opportunity. This is a rare chance to join a founding in-house software team and lead a high-impact greenfield project. You will leverage a modern stack featuring Java 17, Spring Boot, and AWS to build a best-

JD : JAVA Security Analyst Location - London Work mode - Hybrid What you will be doing: • Investigate and resolve security findings across multiple versions of SFTC • Ensure false positives are properly explained to central security team and approved as false positives • Upgrade dependencies both Ja

We are recruiting for a Contract Senior Java / Kotlin Engineer. On-site: 2 dpw in Leeds Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Start date: ASAP Must be happy to work InsideIR35. Who We Are AND Digital are a tech company focused

Role: Java Backend Developer Location: London, UK Permanent Full time employment SC Cleared/SC Eligible Job Summary: As a Specialist II in Backend Development, you will leverage your expertise in Java 17/21 and Java EE library migrations to enhance and upgrade middleware systems. Your role will invo

Company Description Parse AI is the pioneer in developing the world’s first emotionally intelligent AI agents for the hospitality industry. Our mission is to revolutionize customer experiences by blending advanced AI capabilities with personalized human-like interactions. By leveraging state-of-the-

About the Team & Role Our client is building an elite engineering team applying frontier technologies to major financial challenges. We're looking for bold thinkers, sharp problem-solvers, and builders who want to make an impact. This is a high‑performing, fast‑moving environment with ethics at

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€50,000 - €50,000 /year

Requirements Must have: - Eligible to reside in the UK for the past 5 years and prepared to go through UK SC Security Clearance - Experience in Java software engineering and object-oriented design - Spring (Boot) experience - Experience with REST APIs and microservice architectures - Knowledge of Do

About Noon Noon's mission is to radically change the way people learn, with a primary focus on the Middle East, where the company has its roots and where the need and urgency to improve education are highest. We have taught over 12 million students successfully with our remote learning products. Our