At a Glance
- Tasks: Design and implement secure identity and token security solutions for distributed services.
- Company: Leading tech firm focused on innovative security solutions.
- Benefits: Competitive daily rate, remote work flexibility, and opportunities for professional growth.
- Other info: Remote/hybrid work environment with a focus on zero-trust security principles.
- Why this job: Join a cutting-edge team and shape the future of identity security.
- Qualifications: Expertise in OAuth 2.0, OpenID Connect, and JWT with hands-on implementation experience.
The predicted salary is between 63000 - 77000 £ per year.
Senior Engineer - Identity & Token Security Rate: £550 day Outside IR35 Start Date: ASAP End Date: 18/12/2026 Active SC Clearance Location: Remote/Hybrid (UK-based)
Responsibilities Design and implement OAuth 2.0 Token Exchange (RFC 8693) capabilities.
Develop secure identity delegation and propagation patterns across distributed services.
Implement token down-scoping and audience restriction mechanisms aligned to least-privilege principles.
Design secure service-to-service authentication frameworks within zero-trust environments.
Build and maintain robust JWT validation and cryptographic trust chains.
Integrate applications and services using Open ID Connect (OIDC) standards
Essential: OAuth 2.0 & Identity Standards Proven hands-on implementation experience with OAuth 2.0 Token Exchange (RFC 8693).
Strong understanding of Open ID Connect (OIDC) core specifications.
Expert-level understanding of JWT (RFC 7519).
Experience signing, validating and encrypting tokens using JWS and JWE.
Strong knowledge of JWKS endpoints and automated key rotation strategies.
Understanding of secure alternatives to shared-secret authentication mechanisms.
Experience securing service-to-service communication within distributed microservice architectures.
Understanding of zero-trust security principles.
Knowledge of secure transit-layer protection and identity-based access controls.
Identity Delegation & Token Management
Experience implementing: Token down-scoping Audience restriction (aud) Actor and Subject claims handling Experience designing secure token lifecycle management strategies including: Token caching Token renewal Revocation patterns
Familiar with: CDDO Secure by Design principles Experience with cloud-native security architectures. Knowledge of API gateways, service meshes, and federated identity platforms
Senior engineer - Identity & Token Security in London employer: Opus Recruitment Solutions
Opus Recruitment Solutions is an excellent employer, offering a dynamic and inclusive work culture that prioritises employee growth and development. With opportunities to work on high-profile projects across major UK cities, employees benefit from a hybrid working model that promotes work-life balance while engaging in meaningful work that makes a difference. The company values innovation and collaboration, ensuring that every team member can contribute to creating accessible and scalable solutions.
Contact Details:
Opus Recruitment Solutions Recruitment Team
StudySmarter Expert Advice🤫
We think this is how you could land Senior engineer - Identity & Token Security in London
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We think you need these skills to ace Senior engineer - Identity & Token Security in London
Some tips for your application 🫡
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How to prepare for a job interview at Opus Recruitment Solutions
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For a role in cybersecurity, it’s essential to be up-to-date with the latest tools and techniques. Brush up on your knowledge of firewalls, intrusion detection systems, and vulnerability assessment tools. Be ready to discuss specific scenarios where you’ve applied these skills, as hands-on experience can really set us apart in interviews.
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