ABN AMRO - Strategy and Innovation
Full-stack | Software Engineer IV
Core engineer for PayDay, a fintech platform enabling instant payouts for gig-economy workers and freelancers.
Achievements
- Built a core payout engine handling thousands of daily transactions for gig workers with millisecond latency.
- Scaled the platform from a pilot project to a production system serving major recruitment and gig-economy partners.
- Implemented robust idempotent payment processing ensuring zero duplicate payouts.
Impact
Enabled instant financial freedom for thousands of workers by building a reliable, secure, and user-centric payout platform from the ground up within a major bank.
Building PayDay: From Vision to Reality
PayDay was an "intrapreneurial" venture within ABN AMRO. As one of the core engineers, I was responsible for architecting the technical backbone of a platform that needed to combine the speed of a fintech with the security of a bank.
The system was built using a hexagonal architecture to isolate the core payment logic from external banking systems and payout providers. This allowed us to remain agile and adapt to changing requirements without compromising reliability.
Working in a regulated environment taught me the importance of auditability and traceability in financial systems. Every transaction, every state change, and every external interaction was meticulously logged and verified.
Core Responsibilities
- Designed and implemented Kotlin/Spring Boot backend services for payment and payout workflows in a regulated financial environment.
- Built and maintained frontend and mobile capabilities supporting operational finance flows and end-user interactions.
- Contributed to architecture decisions around transaction handling, system integration, and scalable service boundaries.
- Delivered distributed services supporting financial transactions, workflow reliability, and user-facing product capabilities.
- Worked across backend, frontend, and mobile layers, combining product delivery with technical problem-solving in a high-trust domain.