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Dariusz Kowalski
AI Engineer · Test Automation Architect · Platform Builder
Hi, this is Dariusz. I have been in IT for 15+ years. Started on a Commodore 64 when the screen displayed READY. - that was a few decades ago.
Now I build AI-powered systems for software testing and developer workflow automation. Multi-agent platforms, production pipelines, custom tooling.
99% of AI+QA content says "use AI to write tests". I say: AI is the second step. The first is precise engineering of the pipeline that delivers useful, deterministic data to the LLM.
Three layers
AI Engineer
Multi-agent orchestration, AI pipelines, MCP integration. Anthropic SDK, Claude Agent SDK, OpenCode SDK, Ollama. AI_DEVS 4 Builders - 25/25 main missions + 30/30 secret missions, completed in first term.
Test Automation Architect
CDAT Pattern (Components · Data · Actions · Tests) - 4-layer Playwright architecture. Battle-tested across 9 production systems over 2 years. 3000+ tests in production without becoming a maintenance nightmare.
Platform Builder
Jarvis platform (private): 34K LOC, 9 microservices, 15 production pipelines, event-driven architecture, real-time UI, NATS messaging, PostgreSQL, Docker. WCAG + Performance multi-agent auditing at production scale.
Numbers
- LOC in Jarvis
- 34K
- Microservices
- 9
- Production pipelines
- 15
- CDAT battle-tested
- 18mo
- Perf audit: AI vs billable
- 7h vs 16h
- AI_DEVS 4 · missions + secrets · 1st term
- 25/25 + 30/30
- Production projects shipped
- 9
Stack
Languages
- TypeScript
- JavaScript
- Python
- SQL
- Bash
- CSS
Frontend
- React
- Vue 3
- Nuxt 4
- Astro
- Svelte
- Tailwind
Backend
- Node.js
- FastAPI
- Express
- n8n
- MCP SDK
AI/ML
- Anthropic SDK
- Ollama
- OpenRouter
- Whisper
- edge-tts
- MLX
Databases
- PostgreSQL
- Qdrant
- Redis
- ClickHouse
Infra
- Docker
- GitHub Actions
- NATS
- WebSocket
- VPS
QA/Testing
- Playwright
- Vitest
- axe-core
- odiff
- Sharp
Integrations
- Jira API
- Tempo API
- Figma API
- Shopware 6
AI Tools
- Claude Code
- Claude Max
- ChatGPT Pro
- Codex
- Gemini
- GLM
Work with me
Full-remote. B2B consulting or employment. EU+US timezones.