Junior Software Engineer — Web & Payments Integration
FinStep
Kiev, Ukraine
2020 - 2020
Role Summary
- Built merchant-facing tools for a Kiev-based fintech product team—React and TypeScript UIs on internal payment dashboards and settlement views backed by ledger APIs.
- Shipped real-time transaction monitoring with WebSocket feeds; paired with backend engineers to trace mismatches between UI state and processing queues.
- Internalized how card and transfer flows fail in production: timeouts, retries, and idempotency—grounding for later systems and QA work.
Role Summary
- Built merchant-facing tools for a Kiev-based fintech product team—React and TypeScript UIs on internal payment dashboards and settlement views backed by ledger APIs.
- Shipped real-time transaction monitoring with WebSocket feeds; paired with backend engineers to trace mismatches between UI state and processing queues.
- Internalized how card and transfer flows fail in production: timeouts, retries, and idempotency—grounding for later systems and QA work.