Senior Software Engineer (Identity)

TL;DR

Senior Software Engineer, Identity (IAM/Authorization): Building core identity infrastructure for AI products with an accent on secure authentication, authorization, and identity governance. Focus on designing distributed access-control systems, integrating enterprise identity standards, and supporting compliant infrastructure at hirify.global.

Location: London, UK

Company

hirify.global develops AI data engines and full-stack technologies that help leading organizations build, deploy, evaluate, and oversee reliable AI systems.

What you will do

• Design and implement identity infrastructure for secure authentication and authorization across enterprise systems.
• Build SSO, MFA, and federated identity solutions using SAML, OAuth, and OpenID Connect.
• Develop ReBAC, ABAC, and RBAC authorization systems and access-control evaluation.
• Implement software-defined identity governance policies aligned with security standards and regulations.
• Present technical guidance on identity management and security best practices to teams and stakeholders.

Requirements

• 5+ years of full-time engineering experience after graduation, specializing in infrastructure and identity systems.
• Experience with IAM controls, Infrastructure as Code using Terraform or Pulumi, and microservice deployment practices.
• Hands-on experience with OpenFGA, Authzed, Cedar, Topaz, or comparable authorization frameworks at hirify.global.
• Strong knowledge of Zanzibar-based ReBAC, OAuth 2.0, OIDC, SAML, JWT, and enterprise identity providers such as Entra ID and Okta.
• Extensive software development experience with distributed systems and public cloud platforms, preferably AWS.
• Proven independent ownership of engineering projects and strong communication with technical and non-technical stakeholders.

Nice to have

• Experience securing API access and implementing application-level access controls.
• Multi-cloud infrastructure experience across AWS, Azure, GCP, or other platforms.
• Experience integrating IAM solutions with Java, Python, Node, or .NET applications.
• Mentorship or leadership experience supporting junior engineers.

Culture & Benefits

• Work on AI systems used in important decisions by enterprises, governments, and leading technology companies.
• Inclusive and equal-opportunity workplace with a commitment to reasonable accommodations.
• Work alongside industry leaders and contribute to the development of reliable AI applications.

Hiring process

• Candidates may be reconsidered for the same role after a 90-day waiting period.