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# Software Engineer, Identity

- **Company:** Ai.
- **Location:** UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Amazon Web Services, Authentication Protocols, Microsoft Azure, Distributed Systems, Multi-Factor Authentication, Federated Identity Management, Identity and Access Management, Python (Programming Language), Node.Js, OAuth, OpenID, Role-Based Access Control, Openid Connect, JSON Web Token, Security Assertion Markup Language (SAML), Single Sign-On, Software Deployment, Software Engineering, Systems Integration, Pulumi, Google Cloud, Okta, Multi-Cloud, Terraform
- **Published:** September 5, 2026
- **Apply:** https://startup.jobs/senior-software-engineer-identity-scale-8759236

## About the Role

* 5+ years of full-time engineering experience, post-graduation with specialities in infrastructure and identity systems.
 * Infrastructure expertise - IAM controls, Infrastructure as Code (Terraform, Pulumi), microservice deployment best practices.
 * 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 haves:

 * 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

PLEASE NOTE: Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants.

## Description

* 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.


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- [Why segmenting your infrastructure into tiers makes your infrastructure design better](https://www.wearedevelopers.com/videos/1960-why-segmenting-your-infrastructure-into-tiers-makes-your-infrastructure-design-better)
- [Delay the AI Overlords: How OAuth and OpenFGA Can Keep Your AI Agents from Going Rogue](https://www.wearedevelopers.com/videos/1637-delay-the-ai-overlords-how-oauth-and-openfga-can-keep-your-ai-agents-from-going-rogue)
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