6 java developer jobs found in London

Senior Java Engineer – Contract Location: UK-based, Fully Remote Contract: 6 months initially Rate: Up to £500 per day IR35: Outside IR35 The Opportunity We’re looking for an experienced Senior Java Engineer to join a major technology transformation and help build a brand-new greenfield iGaming platform for a global organisation generating over $1 billion in annual turnover . This is a genuinely exciting opportunity to join during a significant period of growth, with the wider engineering function being built out to 50+ engineers . You’ll play a key role in designing and delivering a highly scalable, high-performance platform from the ground up. iGaming or betting platform experience is essential for this role. What You’ll Be Doing Designing and developing high-quality, scalable Java applications and services. Contributing to the architecture and technical direction of a new greenfield iGaming platform. Working across the full software development...

Senior Java Engineer – Contract Location: UK-based, Fully Remote Contract: 6 months initially Rate: Up to £500 per day IR35: Outside IR35 The Opportunity We’re looking for an experienced Senior Java Engineer to join a major technology transformation and help build a brand-new greenfield iGaming platform for a global organisation generating over $1 billion in annual turnover . This is a genuinely exciting opportunity to join during a significant period of growth, with the wider engineering function being built out to 50+ engineers . You’ll play a key role in designing and delivering a highly scalable, high-performance platform from the ground up. iGaming or betting platform experience is essential for this role. What You’ll Be Doing Designing and developing high-quality, scalable Java applications and services. Contributing to the architecture and technical direction of a new greenfield iGaming platform. Working across the full software development...

Senior Java Engineer - Contract Location: UK-based, Fully Remote Contract: 6 months initially Rate: Up to £500 per day IR35: Outside IR35 The Opportunity We're looking for an experienced Senior Java Engineer to join a major technology transformation and help build a brand-new greenfield iGaming platform for a global organisation generating over $1 billion in annual turnover . This is a genuinely exciting opportunity to join during a significant period of growth, with the wider engineering function being built out to 50+ engineers . You'll play a key role in designing and delivering a highly scalable, high-performance platform from the ground up. iGaming or betting platform experience is essential for this role. What You'll Be Doing Designing and developing high-quality, scalable Java applications and services. Contributing to the architecture and technical direction of a new greenfield iGaming platform. Working across the full software development life...

Technical Lead - CA Gen Developer/Mainframe Transformation Specialist Contract: 12 Months Location: UK-based, with occasional European travel Travel: Expenses paid Rate: Up to £550 per day IR35: Outside IR35 We are looking for an experienced Technical Lead/CA Gen Developer to join a major Mainframe-to-Cloud transformation programme on an initial 12-month contract. You will provide technical leadership across the modernisation of Legacy Mainframe applications, working across CA Gen, Cobol and Java within both Mainframe and Cloud environments. Key Skills & Experience Strong expertise in CA Gen Cobol (Mainframe) and CA Gen Java (Cloud). Proven experience delivering Mainframe-to-Cloud migration and transformation programmes. Strong knowledge of: Cobol Java DB2 IMS JCL MS SQL Performance engineering System analysis Experience providing technical leadership within complex transformation programmes. Insurance industry experience is highly desirable. Strong...

AI DevOps Engineer - Azure AI Foundry Contract Length: 6 months Location: Remote with ad-hoc travel Rate: Up to £600 per day IR35 Status: Outside IR35 Start Date: ASAP About the Client A leading global insurance organisation is investing heavily in AI and is building new AI products and services across the business. They are looking for an experienced DevOps Engineer to help establish the engineering foundations needed to deploy, automate, govern, and operate these AI solutions at enterprise scale. Role Overview This is not a traditional DevOps role. You will sit at the intersection of DevOps, software development and AI, building the CI/CD, automation, Infrastructure-as-Code and governance capabilities needed to take AI solutions from development into secure, repeatable production environments. You will work closely with AI, DevOps and Engineering teams, with a particular focus on integrating Azure AI Foundry into existing enterprise engineering...

Cryptography Architect - Crypto & Post-Quantum 6-month contract September Start date Outside IR35 - Market rate Remote Working 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 appropriate...