10 java developer jobs found

Senior Java Developer/Technical Lead (Assurance) - Spring Boot/Angular - SC Cleared - Outside IR35 Location: London - Hybrid Duration: 6 months + Clearance: Active SC clearance required (UK only) Outside IR35 Synergetic is recruiting a senior, hands-on Java developer on behalf of a leading consultancy. You'll join a major central government programme that is replacing a critical system. The Legacy code is more than 30 years old, and the replacement is being built on Java, Spring Boot, Angular and PostgreSQL. You'll act as the client's technical lead on code quality and delivery. You'll get into the delivery partner's codebase, designs and pipelines, judge what is being built and how well, and then explain that clearly to Product Managers, Delivery Managers and programme leadership. We need a strong engineer who can communicate, not a governance specialist. What You'll Do Review code, designs and architecture decisions from the delivery partner, and...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

EIS Developer | Contract | Remote UK I'm working with a leading insurer that's modernising its core platform on EIS, and they need a strong EIS developer to join the delivery team. You'll be hands-on in the build, configuring and extending the EIS platform across policy, billing and/or claims, and integrating it with the systems around it. It's a high-visibility programme with real investment behind it and a team that knows what it's doing. What you'll be doing Developing and configuring components across the EIS Suite (PolicyCore, BillingCore, ClaimCore, CustomerCore) Building integrations with external systems such as payment gateways, finance, document generation and data platforms Working in an Agile team with BAs, testers and architects from design through to release Taking part in code reviews, demos and technical discussions Supporting CI/CD pipelines and DevOps practices What you'll bring Hands-on development experience with EIS Suite/EIS...

Staff Full Stack Engineer (Contract) | Rust & Java (Primary) | React & Python (Secondary) | Fully Remote (UK-based) | £500-600+/day | Outside IR35 | 12-Month Contract We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform – modernising backend services, improving frontend experiences, and setting long-term architectural direction. They’re looking for a Staff Full Stack Engineer (Contract) with strong commercial experience in Rust and Java, alongside hands-on experience building production-grade applications with React and Python. This is a high-impact, long-term contract within an experienced, product-focused engineering team, where you'll play a key role in developing scalable backend systems, delivering modern frontend experiences, and influencing architectural decisions. It’s well suited to an experienced contractor who enjoys owning complex technical challenges, working...

Cryptography Architect - Crypto & Post-Quantum 6-month contract September Start date Outside IR35 - Market rate Remote Working - Open to Europe We are seeking an experienced Crypto & PQC Architect to lead a critical post-quantum cryptography readiness programme. This hands-on role will focus on deploying cryptographic inventory tools, discovering cryptographic assets and developing a comprehensive Crypto Bill of Materials (CBOM) across business-critical applications. This is a hands-on architecture role focused on assessing the organisation's existing cryptographic landscape and establishing a clear roadmap towards quantum-resistant security. The initial priority will be to deploy crypto-inventory tooling and develop a comprehensive Crypto Bill of Materials (CBOM) across business-critical applications. The role will involve working closely with application owners, security teams and developers to identify where cryptography is used, assess associated risks and recommend...

Senior Technical Business Analyst - JAVA Contract | Outside IR35 Day rate: 800 per day outside IR35 Hybrid London MUST HAVES - JAVA DEVELOPMENT BACKGROUND, DISTRUBTED SYSTEMS EXPERIENCE. MESSAGING SYSTEMS EXPERIENCE LIKE AERON, KAFKA OR EQUIVALENT. BACKGROUND IN CAPITAL MARKETS, TRADING OR GAMING. ?????? This is a specialist technical contract requiring someone who can bridge software engineering, architecture, QA and business stakeholders. The standout requirement is hands-on knowledge of Aeron, Kafka or equivalent high-performance messaging technologies, ideally within investment banking, electronic trading or financial markets. We are seeking an experienced Senior Technical Business Analyst to join an exciting technology project with a specialist financial technology consultancy delivering sophisticated trading solutions for leading investment banks, investment managers and capital markets organisations. This is an opportunity to work at the intersection of...