Senior Software Engineer - Identity & Authentication (Backend) - Contractor

Reference: CV77146

We are seeking a highly skilled Senior Software Engineer specializing in Identity & Authentication to join our dynamic team as a Contractor. In this role, you will be responsible for designing, developing, and maintaining secure and scalable backend systems that handle user identity and authentication processes. You will collaborate closely with cross-functional teams to integrate these systems into our applications, ensuring a seamless user experience while adhering to best practices in security and data protection. Your expertise will contribute to enhancing our existing identity management solutions and developing new features that support our growing user base.

The ideal candidate will have a deep understanding of authentication protocols such as OAuth2, OpenID Connect, and SAML, along with experience in implementing secure APIs. Your responsibilities will include writing clean, maintainable, and efficient code, conducting code reviews, and mentoring junior engineers. You will also be responsible for troubleshooting and resolving issues related to identity management, optimizing system performance, and participating in architectural discussions. A strong background in cloud technologies and containerization (e.g., AWS, Docker) is highly desirable, as is familiarity with database systems and data modeling. If you are passionate about building secure and efficient identity solutions and thrive in a fast-paced environment, we would love to hear from you.

COMPETITIVE SALARY

London

Permanent

Added 12/01/2026
Reference: CV77146

Senior Software Engineer - Identity & Authentication (Backend) - Contractor

London
Permanent

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