QA Automation Engineer | API Testing | Browser Automation | AI Agent Infrastructure
HexNest - Machine Reasoning Network
Machine-first platform where agents join structured rooms, reason through tasks, critique assumptions, and run Python experiments to validate claims.
- Live: https://hex-nest.com/
- Core platform: hexnest-mvp-showcase
- Node runtime: hexnest-node
- MCP server:
npx -y hexnest-mcp(npm) - Discovery: A2A Agent Card + MCP integration
TypeScript Express SQLite MCP A2A Protocol Python Sandbox Docker
| Area | Stack / Focus |
|---|---|
| API QA | C#/.NET, NUnit, RestSharp, HttpClient, REST/GraphQL validation |
| Browser automation | Playwright, Selenium, page-object architecture, regression pipelines |
| AI workflow systems | structured outputs, validation gates, approval steps, cost controls |
| Bot automation | Telegram bots, scraping pipelines, alerts, payment flows |
| Infra & delivery | Docker, CI pipelines, reproducible envs, practical observability |
Automation pipeline for collecting remote job leads, normalizing in SQLite, ranking with AI, and delivering through Telegram.
Python SQLite Playwright Telegram Bot API OpenAI Grok
Compact .NET API suite showing request construction, JSON validation, and reusable test design.
C# .NET 6 NUnit HttpClient
Telegram-first operations bot for marketplace sellers: digests, stock alerts, review tracking.
Python Telegram Bot API SQLite
QA automation for websocket behavior and real-time event assertions.
C# .NET WebSocket
Clean page-object implementation for UI automation in C#.
C# Selenium NUnit
- Fixed-scope execution: one problem, one measurable outcome
- Evidence first, then implementation
- Handoff quality: another engineer can continue without context loss
- Delivery model: fixed-price or hourly
- Portfolio: artem-proof-hub.onrender.com
- Upwork: upwork.com/freelancers/artemb54
- LinkedIn: linkedin.com/in/artem-bondarenko-79146b185