I’m Sergey Yashchuk, a senior full-stack engineer with 6+ years of experience. I build AI integrations and internal tools with TypeScript, Node.js and React. Available for remote contracts: 10–20 hours/week, in fixed working slots with 2–3 hours of daily CET/CEST overlap.
MCP Lead CRM is my personal TypeScript project for managing leads, follow-ups and CSV data through an MCP client.
Local MCP prototype with fictional data; includes a recorded demo, automated tests and an n8n starter workflow.
Walkthrough: add a lead → record a qualification score → schedule a follow-up.
Outhook Outbound Webhooks is my personal WordPress plugin, listed since 11 September 2026 after the plugin review. It sends site events to HTTPS endpoints with optional HMAC-SHA256 signatures, retries and delivery diagnostics. Source.
At a US enterprise customer-service platform, I led a real-time collaborative workflow editor end to end. It replaced a manual configuration process that took weeks with one that takes days and became a key feature in enterprise sales demos (case study).
For part-time contracts, email sergey.yashchuk1@gmail.com.