Two senior specialists handle all client engagements. No rotating team members, no handoffs between discovery and testing phases.
Both work exclusively on financial system security and have spent years identifying how payment logic fails under stress.
Dominik specializes in transaction flow analysis and data validation logic. He built testing frameworks for three fintech companies before joining Domain. His audits typically uncover 12-18 critical vulnerabilities in supposedly production-ready systems.
Jasper focuses on third-party payment gateway integration and API security boundaries. Before Domain, he worked as a penetration tester for banking infrastructure. His role involves verifying that external service connections cannot leak sensitive transaction data.
First week dedicated to mapping payment flows and identifying critical transaction paths. We review existing documentation, interview your development team, and establish which components handle money movement.
This phase determines audit scope and testing priorities. Systems with custom payment logic require more time than platforms using standard gateway integrations.
Two to four weeks executing test cases against transaction endpoints. We simulate race conditions, verify refund logic, and stress-test concurrent payment processing.
Final week preparing detailed findings report with reproduction steps for each vulnerability. Includes severity classification and recommended fixes.
After your team implements fixes, we re-test affected components to confirm vulnerabilities are resolved. Included in initial engagement fee.
