Senior Software Engineer (CIAM)

We are looking for an enthusiastic and inquisitive Senior Software Engineer with a passion for delivering secure, seamless customer experiences through modern identity and access management. You will have a strong foundation in CIAM concepts and protocols, paired with hands-on experience developing and operating secure applications in web and mobile environments.

You will contribute to shaping and delivering our CIAM strategy, acting as a trusted advisor across engineering teams while delivering secure, scalable solutions that enhance user experience. With a DevSecOps mindset, you will develop, deploy, and support applications using automation, best practices, and continuous improvement.

As a senior engineer, you will play a leading role in the squad - championing good engineering practices, mentoring others, and influencing the technical direction of CIAM integration across the business.

Main Duties

Leadership

• Act as a technical lead for CIAM-related solutions and integrations within your squad.
• Mentor engineers and promote knowledge sharing within the team and wider engineering community.
• Shape and advocate the CIAM technical strategy and roadmap in alignment with broader platform goals.
• Contribute to technical decision-making, architecture discussions, and engineering governance.

Implementation & Delivery

• Design and implement secure, scalable Customer Identity and Access Management (CIAM) solutions using modern technologies and cloud-native practices.
• Configure and support workflows for registration, authentication (including MFA, biometrics, social login), authorisation, and identity synchronisation.
• Create proof of concepts for securing services with various token types (ID, Access, User) and define reusable patterns.
• Develop high-quality software using React, NestJS, and related technologies in both web and mobile contexts.
• Support micro frontend architecture including module federation and independently deployed pipelines.
• Ensure CI/CD pipelines support testing, automation, and streamlined deployment of identity-enabled services.
• Maintain high standards of testing, including unit, integration, end-to-end, and performance testing.

Collaboration & Communication

• Act as a CIAM advisor to teams integrating identity capabilities into their platforms.
• Collaborate with stakeholders across engineering, product, security, and architecture to align on secure and user-centric identity experiences.
• Contribute to Chapter, Squad, and Guild forums to raise standards in security, reliability, and engineering culture.

Experience Required

Technical Expertise

• Proven experience in a Senior Software Engineer role, delivering customer-facing web or mobile applications.
• Strong understanding of CIAM protocols including OAuth2, OpenID Connect, SAML, and SCIM.
• Hands-on experience with CIAM platforms (e.g., Auth0, ForgeRock, Okta, Ping Identity) including configuration and troubleshooting.
• Solid understanding of security best practices: secure authentication, authorisation, data protection, token handling, and OWASP.
• Proficiency in modern development using React and NestJS, including API development and component design.
• Experience with micro frontend architectures, including independent deployments and module federation.
• Skilled in building and maintaining CI/CD pipelines with automated testing and deployment (e.g. Azure DevOps, GitHub Actions).
• Working knowledge of GCP and/or Azure and experience with containerisation using Docker, Kubernetes, and Terraform.
• In-depth understanding of testing strategies across unit, integration, E2E, and non-functional areas.
• Experience with performance optimisation and monitoring of customer-facing applications.

Behavioural Competencies

• Analytical Thinking: Breaks down complex identity and engineering challenges into actionable solutions.
• Adaptability: Responds effectively to changing priorities, evolving technologies, and shifting stakeholder needs.
• Initiative & Innovation: Proactively proposes improvements to security, user experience, and reliability of identity flows.
• Strategic Awareness: Understands how CIAM supports broader business goals like personalisation, security, and customer trust.
• Decision-Making: Makes sound engineering and security decisions, balancing user needs, compliance, and feasibility.
• Collaboration: Works well with engineers, product teams, architects, and security professionals to deliver cohesive outcomes.
• Communication: Explains technical identity topics clearly to both technical and non-technical audiences.
• Mentoring & Leadership: Supports the growth of less experienced engineers and promotes knowledge sharing across teams.

Admiral: Where You Can

We take pride in being a diverse and inclusive business. It's a place where you can Be You, and show up as you are. We’re committed to fostering a people-first culture where everyone is accepted, supported, and empowered to be brilliant. You can, Grow And Progress at a pace and direction that suits you, Make A Difference for our customers and each other, and Share in Our Future with all colleagues eligible for up to £3,600 of free shares each year after one year of service.

Everyone receives 33 days holiday (including bank holidays) when they join us, increasing the longer you stay with us, up to a maximum of 38 days (including bank holidays). You also have the option to buy or sell up to an additional five days of annual leave.

We’re proud of our people-first culture. In fact, we've been recognised as a Great Place to Work for Women, a Great Place to Work for Wellbeing, and an overall Great Place to Work for over 25 years! We’re fully committed to making sure your progression is not slowed or halted by barriers related to race, gender, age, sexuality or any of the protected characteristics.

Our fantastic benefits make sure our colleagues have a great work-life balance; You can view some of our other key benefits here.

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