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kolezka/README.md

Mariusz Rakus

Senior / Lead Full-Stack Engineer

web, mobile, backend, iot

Profile Views

🎯 Currently

  • Lead Full-Stack Engineer on a mobile platform - React Native, FastAPI, Azure
  • Senior Full-Stack Engineer (Contract) via Toptal — top 3% of engineers (2026)
  • Principal Engineer & Founder at raqz.pl — my software engineering practice

🏆 Selected past

  • Mobile Lead Engineer at DirectDental (2023–2025) — sole-dev'd the React Native app that contributed to the company's acquisition by Henry Schein (Fortune 500, NASDAQ: HSIC)
  • Senior Engineer via Sofomo (2021–2026) for US startups and scale-ups:
    • Dynamic.xyz (a16z-backed Web3 infrastructure) — multi-chain wallet SDK (Ethereum, Solana, Cosmos)
    • Globality - $310M funded autonomous sourcing platform
    • PublicSQ — US social marketplace

🛠️ Stack

Core: TypeScript, Python, React, Next.js, React Native, Node.js, AI-augmented engineering workflows (Claude Code, custom MCP tooling)

📫 Connect

Pinned Loading

  1. fsc-classifier fsc-classifier Public

    AI system to classify companies into Federal Supply Classification (FSC) codes using web crawling, PDF parsing, OpenAI embeddings, pgvector search, and GPT-4o reranking

    TypeScript

  2. kolezka-cards kolezka-cards Public

    Dynamic SVG cards for GitHub READMEs · 10 card types, privacy-preserving per-card analytics (no IPs, no cross-day tracking), Apple liquid-glass dashboard · self-hosted Bun + Hono + SvelteKit

    TypeScript 1

  3. flowbot flowbot Public

    Multi-platform bot management and visual flow automation — Telegram, Discord, WhatsApp

    TypeScript

  4. spiderfoottoe spiderfoottoe Public

    Forked from poppopjmp/spiderfoot

    OSINT automation platform — fork of poppopjmp/spiderfoot with self-hosted-dev fixes for read-only Docker rootfs, multi-worker config persistence, scan logging, and tool path discovery.

    Python

  5. NL5H00X NL5H00X Public

    Firmware analysis and modification tools. Bypass security restrictions, install custom launchers, and safely modify locked-down Chinese projector devices with comprehensive backup and recovery scri…

    Shell 7 1

  6. tg-viewer tg-viewer Public

    OSINT toolkit for macOS — extract, decrypt, and browse Telegram data offline, including deleted messages and secret chats. Decrypts SQLCipher .tempkeyEncrypted databases and parses the Postbox bina…

    Python 2