Adam Klvač

I'm a freelance backend software developer based in the Czech Republic.

What I do

• Applications for manufacturing
• ERP integrations and data bridges
• B2B/B2C web applications
• HELIOS Nephrite modules
• Document-processing and EDI automation
• Desktop, terminal and kiosk applications
• ISDOC PHP library

Technologies

• PHP (Symfony, Nette, Doctrine)
• C# (.NET / .NET Framework, EF Core, WPF/WinUI)
• C (WinAPI, FFI)
• TypeScript (React, vanilla, lean toolchains)
• Go, Lua (language + embedding in C)
• SQL (SQLite, MSSQL, PostgreSQL, MySQL/MariaDB, Percona)
• Elasticsearch, Redis, MQTT
• Docker/Linux/Windows
• Git and CI/CD (GitHub Actions)

Experience

• ERP systems (HELIOS Nephrite/Green/Orange, SAP, Dynamics AX)
• Facility & asset management, energy billing and document management
• Manufacturing — APIs, terminals, kiosks, warehouse management
• B2B/B2C web applications and customer portals
• Data bridges between in-house systems and ERPs
• Low-level and systems work — FFI, reverse engineering, network protocols, embedded Linux
• idTech3-family game related work — modding, administration, engine bugfixes, statistics & moderation systems
• MCP servers and LLM-backed automation, including local vision and speech-to-text models
• Real-time frontend interfaces

adam@klva.cz
linkedin
IČO 00764671

github.com/adawolfa