Senior Full Stack Engineer – Typescript, C#, AWS, IAM, Security Outstanding opportunity to join this global B2B SaaS leader as a Senior Full Stack Engineer with some security and IAM exposure required to develop APIs to connect their IAM solution to their core applications. This permanent role offers the chance to shape how full stack applications embrace Zero Trust authentication and authorization services in a cutting‑edge, AI‑driven environment. About the Role:

Build full‑stack APIs and integrations in TypeScript, C#, AWS IAM Deliver secure login, SSO, MFA, RBAC/ABAC, and tenant isolation at scale, leveraging AWS services (Lambda, IAM, CloudFront, API Gateway, CDK) Collaborate across Product, Security, and Engineering teams, embed identity into new features, and uphold engineering excellence through CI/CD, testing, and incident response

Required experience:

An in‑depth security mindset with an understanding of Zero Trust & OAuth2 Proven experience with OIDC‑compliant IDPs (Auth0, Okta, Cognito) A proven background in building RESTful APIs that interact with IDPs Security‑first mindset with experience in secure coding, threat modelling, and protecting PII Ability to mentor, collaborate, and lead with hands‑on problem‑solving

Seniority level Mid‑Senior level Employment type Full‑time Job function Information Technology, Engineering, and Consulting Industries Computer and Network Security, Technology, Information and Media, Internet Marketplace Platforms #J-18808-Ljbffr