Jan 2025 - Present
Senior Full Stack Engineer - Dualmint
- Own the TypeScript/Express backend (MongoDB, Redis/BullMQ) behind an equipment-financing marketplace of 1,500+ originated physical assets, architected so new networks and asset classes launch as configuration rather than code.
- Built the revenue-distribution pipeline: a 2-of-3 verification model reconciling IoT telemetry, bank transaction data and operator reports within a ±10% tolerance before any payout clears — 8,700+ payout cycles across 14+ consecutive months at 100% on-time.
- Designed provider-agnostic on-chain event ingestion spanning 8 webhook endpoints, three data providers and 5 chains, with a 4-tier receipt-fetch fallback so no settlement event is silently dropped.
- Built the underwriting engine behind the vault backend — a four-pillar model scored across 20 features, covered by a 156-test suite at 94% statement coverage.
- Shipped an IoT device-provisioning pipeline on a crash-safe append-only ledger; a single 32.6-hour run registered 205 devices with zero collisions.
- Standardized infrastructure across 7 repositories (agent-assisted code workflows, pre-commit hooks, lint-staged, strict TypeScript) and migrated the platform off serverless onto AWS EC2 with PM2 and health-checked GitHub Actions across 3 environments.
- Lead a team of 5, owning backend and infrastructure direction.
TypeScriptNode.jsMongoDBRedisAWS EC2GitHub Actions
