Senior Security Engineer

This role is about building security into those APIs, not reviewing them after the fact.

We are looking for a hands-on security engineer who codes, understands how attackers break APIs, and uses that mindset to build real, production security controls.

🚫 Not SOC

🚫 Not compliance

🚫 Not pentest-only

✅ Builder with a breaker mindset

Job Responsibilities:

• Build and ship API security controls used by product teams (authZ checks, validation, abuse prevention).
• Defend against business logic attacks (BOLA/IDOR, mass assignment, workflow abuse).
• Design and validate OAuth2, OIDC, JWT** implementations across internal & external APIs.
• Build **automated attack simulations to test the controls you deploy.
• Harden and secure API gateways (Kong / Azure API Gateway).
• Define security patterns for partner integrations & Open Banking APIs.

What We’re Looking For:

• Bachelors Degree in Computer Science or equivalent field.
• Strong software engineering background (you write production-quality code).
• Hands-on Application / API Security experience.
• Deep understanding of REST & GraphQL security.
• Solid knowledge of OAuth 2.0, OpenID Connect (OIDC), JWT.
• Comfortable with Python for automation and security tooling.
• Experience with tools like Postman, Burp Suite, 42Crunch (or similar).

Why This Role:

• Protect real financial transactions at digital bank scale.
• Build security once and have it used everywhere.
• Work closely with platform & product engineering teams.
• High ownership, real impact, real attackers in mind.

Good Fit If You Are:

• A security engineer who codes daily.
• A builder curious about how systems break.
• Someone who prefers ownership over reports.