Lead Java Developer (London)

We are seeking an experienced Lead Java Developer with CIAM Customer Identity and Access Management expertise to design, develop, and lead the implementation of scalable and secure identity solutions. The ideal candidate will have strong technical leadership capabilities and deep proficiency in modern Java‑based technologies along with IAM concepts.

Hybrid working

The places that you work from day to day will vary according to your role, your needs, and those of the business; it will be a blend of company offices, client sites, and your home, noting that you will be unable to work at home 100% of the time.

Your Role

• Lead the design, development, and deployment of robust backend services using Core Java, Spring, and Spring Boot.
• Architect and implement CIAM solutions ensuring scalability, reliability, and security.
• Build and maintain RESTful APIs for integration with internal and external systems.
• Work with Kafka for event‑driven and streaming architectures.
• Design and manage data persistence using MongoDB.
• Develop containerised applications using Docker and manage deployments via Helm and Kubernetes.
• Collaborate with cross‑functional teams including security, DevOps, and product teams.
• Provide technical leadership, mentorship, and code reviews for development teams.
• Ensure adherence to security best practices, especially around authentication, authorisation, and identity management.
• Troubleshoot performance issues and optimise system efficiency.
• Contribute to architectural decisions and roadmap planning.

Your Skills

• 8 years of experience in Java development with at least 2 years in a lead role.
• Strong expertise in Core Java (Java 8).
• Experience with the Spring Framework and Spring Boot.
• REST API development.
• Hands‑on experience with Apache Kafka.
• MongoDB or other NoSQL databases.
• Docker and containerisation.
• Helm and Kubernetes deployments.
• Solid understanding of CIAM/IAM concepts, including OAuth2, OpenID Connect (OIDC), and SAML.
• Identity lifecycle management.
• Authentication and authorisation frameworks.
• Experience designing scalable distributed systems.
• Strong knowledge of microservices architecture.
• Familiarity with DevOps practices and CI/CD pipelines.
• Experience with CIAM platforms such as Azure AD B2C, Okta, Auth0, ForgeRock, or similar.
• Knowledge of API gateways and security frameworks.
• Exposure to cloud platforms: Azure, AWS, or GCP.
• Experience in high‑availability and high‑performance systems.
• Certifications in Java, Cloud, or IAM are a plus.

We are a Disability Confident Employer

The company is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who:

• Declare that they have a disability.
• Meet the minimum essential criteria for the role.

Please opt in during the application process.

Make It Real (what does it mean for you)

You’ll be joining an accredited Great Place to Work for Wellbeing in 2024. Employee wellbeing is vitally important to us as an organisation. We have trained Mental Health Champions across each of our business areas and invest in wellbeing apps such as Thrive and Peppy. You will be empowered to explore, innovate, and progress. You will benefit from the company’s “learning for life” mindset, meaning you have countless training and development opportunities from thinktanks to hackathons, and access to 250,000 courses with numerous external certifications from AWS, Microsoft, Harvard ManageMentor, Cybersecurity qualifications, and much more. You will be joining one of the World’s Most Ethical Companies®, as recognised by Ethisphere® for 13 consecutive years.