Tech Lead Loopay
I lead a team of five engineers building a multi-tenant cross-border treasury and payments platform for fintech companies. The platform supports custodial wallets, virtual accounts, deposits, withdrawals, and integrations with custody, payout, virtual-account, and KYC providers using NestJS, PostgreSQL, GraphQL, REST, and React.
I established engineering standards including mandatory pull-request reviews, an INVEST-based backlog, Playwright end-to-end testing, and code audits. I closed 12 security-audit findings involving idempotent money operations, SSRF protection, API-key lifecycle management, and encryption of stored secrets. I also co-led an AWS-to-Azure migration using Terraform and built GitHub Actions CI/CD with OIDC, ephemeral pull-request environments, version-tag releases, and over 6,000 automated tests.