Aj Stewart

WORK HISTORY

EDUCATION

ABOUT AJ STEWART

I specialise in making critical money flows boring, in the best way. That means mapping and simplifying payment paths, wrapping partner integrations behind stable, secure contracts, and building the ops tooling that makes allocation, reconciliation and exception handling predictable. I raise reliability with proactive checks and clear SLOs, embed E2E tests in CI/CD, and contribute platform standards for logging, tracing and security. I’ve also shipped adjacent journeys like financing and rewards, collaborating with product, ops and partners to deliver them sustainably.Skills & tools: TypeScript, Node.js, Express, ts-rest, Zod, PostgreSQL, Prisma/Drizzle, GCP (GKE, Pub/Sub, Cloud SQL), Terraform, Helm, Docker, Kubernetes, GitHub Actions, Datadog, Jest, Playwright.