Integration specialist & full-stack developer. 15+ years connecting ERPs and e-shops, building custom software. In recent years, AI integration where it saves real hours of work.

🌐 michael-fanta.cz — services, references, contact 💼 LinkedIn ✉️ info@michael-fanta.cz

I help companies connect systems that don't talk to each other, automate routine work, and build custom applications where off-the-shelf software falls short. Long-term partnership, not one-off projects.

Focus areas:

• System integration — ERP ↔ e-shop ↔ accounting ↔ warehouse ↔ carriers
• Custom API development — REST, GraphQL, gRPC, SOAP, WebSocket
• AI integration — product descriptions, translations, data enrichment, custom assistants over your data
• Web applications — portals, dashboards, internal tools
• E-commerce — Shoptet customization & extensions, Shopify
• Supplier feeds — XML, CSV, EDI, Napoj.se, Mergado
• DevOps & hosting — managed deployments on Hetzner, Wedos and similar providers

Languages — Python · C# · PHP · TypeScript · JavaScript · Bash · HTML5 · CSS3

Backend & frameworks — FastAPI · SQLAlchemy · Pydantic · Alembic · Uvicorn · pandas · Jinja2 · boto3 (AWS SDK) · Node.js

Infrastructure & DevOps — Docker · Docker Swarm · Kubernetes · NGINX · Git · GitHub Actions · VS Code · Postman

Databases — MariaDB / MySQL · PostgreSQL · Redis · Microsoft SQL Server · SQLite

APIs & protocols — REST · GraphQL · gRPC · SOAP · WebSocket · OData

Observability — Prometheus · Grafana · Elastic Stack · Sentry · Zabbix · UptimeRobot

AI & LLM tooling — OpenAI · Anthropic · LangChain · LlamaIndex · Ollama

Practical AI integration: structured outputs, RAG over company documents, batch enrichment, custom assistants. With safety guardrails and human-in-the-loop where it matters.

I use the same tools on my own work — generating documentation, scaffolding tests, keeping docs in sync with repo changes — so I can stay focused on what I actually love: building applications end-to-end.

Abra Gen · Abra Flexi · Abra Flores · Money S3 · Money ERP · Pohoda · Cézar · Byznys · Vario · Winshop

If your system isn't listed but has any data interface (REST/SOAP API, database view, export file), I can almost certainly connect it.

I build, customize, and integrate on Shoptet and Shopify — and migrate clients onto these platforms from Upgates, Eshop-rychle, FastCentrik, WooCommerce, and others.

macOS · Ubuntu · Debian · CentOS · Windows Server

From sensors to a fully automated aquarium — where I tinker before bringing things to clients.

Arduino · Raspberry Pi · Home Assistant · ESPHome · Tasmota

Note on public repos: Client work is mostly under NDA, so I keep it private. Public repos here are hobby projects and experiments.