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Senior Software Engineer, Identity

Job in London, Greater London, W1B, England, UK
Listing for: Scale AI, Inc.
Full Time position
Listed on 2026-07-19
Job specializations:
  • Software Development
    Backend Developer, Software Engineer, DevOps
Salary/Wage Range or Industry Benchmark: 110000 - 150000 GBP Yearly GBP 110000.00 150000.00 YEAR
Job Description & How to Apply Below
Position: Senior Software Engineer, Identity  Apply →

Responsibilities

  • Help support the design and development of core software systems specifically focused on identity, access management, authorization, and authentication.
  • Drive the design and implementation of our identity infrastructure to ensure secure authentication and authorization across enterprise systems.
  • Build software for authentication mechanisms such as Single Sign-On (SSO), Multi-Factor Authentication (MFA), and federated identity solutions (SAML, OAuth, OpenID Connect).
  • Build software for authorization mechanisms such as Relation-based access control (ReBAC), Attribute-based access control (ABAC), Role-based access control (RBAC).
  • Build software‑defined identity governance policies to ensure compliance with security policies, industry regulations (e.g., NIST, SOC2, ISO 27001), and organizational standards.
  • Present technical information to teams and stakeholders, providing guidance and insight on identity management and best practices.
Qualifications
  • 5+ years of full‑time engineering experience, post‑graduation with specialties in infrastructure and identity systems.
  • Hands‑on experience working with OpenFGA, Authzed, Cedar, Topaz, or similar authorization frameworks at scale.
  • Strong understanding of Zanzibar‑based ReBAC models, relationship tuples, and access control evaluation.
  • Strong knowledge of authentication standards such as OAuth 2.0, OIDC, SAML, and JWT, as well as industry standard IdP solutions like EntraID, Okta, etc.
  • Extensive experience in software development and a deep understanding of distributed systems and public cloud platforms (AWS preferred).
  • Show a track record of independent ownership of successful engineering projects.
  • Possess excellent communication and collaboration skills, and the ability to translate complex technical concepts to non‑technical stakeholders.
Nice to Have
  • Experience securing API access and implementing access control mechanisms at the application level.
  • Multi‑cloud infrastructure experience – AWS, Azure, GCP, and more.
  • Proficiency in integrating IAM solutions with applications built using frameworks such as Java, Python, Node.js, or .NET.
  • Mentorship/leadership experience supporting junior engineers.

We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status.

We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at

We comply with the United States Department of Labor's Pay Transparency provision.

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Position Requirements
10+ Years work experience
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