Jakub Janik
De: Poland
Ubicación: Częstochowa, PL
En Useme desde 1 mayo 2026
Sobre mí
Full-stack developer and AI engineer building end-to-end systems that drive real e-commerce results - from database architecture and backend, through frontend and mobile apps, to AI modules and production deployment.
- Led a 2-person dev team with full ownership of tech stack, architecture, and product roadmap for an automotive parts company operating across European marketplaces.
- Designed and shipped a complete ERP/WMS system (Python, Nuxt.js, PostgreSQL, Capacitor mobile app) managing warehouse operations, multi-platform sales (Allegro, eBay, Ovoko), document generation, barcode scanning, picking optimization, and sales analytics with ROI tracking. Reduced the legacy database from 300 tables to 40.
- Built an e-commerce platform with an Elasticsearch search engine indexing 60M+ products from 8 suppliers (<100ms queries), an AI module (LLM + OCR) that extracts OE part numbers from insurance repair estimates, and an AI sales chatbot (RAG) guiding B2B/B2C customers through
Categorías
CV / Currículum
Jul 2025 - Ahora
Lead Engineer & Full-Stack Developer
Bracia Wydmuch
Led 2-dev team. ERP/WMS "Stacja 2.0" (Python, Nuxt, PostgreSQL), Allegro/eBay/Ovoko sync, multi-account OAuth. BroGear AI: Elasticsearch 60M+, OCR OE extraction, RAG chatbot, dynamic pricing. 2 e-commerce stores, B2B portal, packing assistant (-60%).
Jul 2024 - Jun 2026
Full-stack Developer
Bracia Wydmuch
Marketplace integrations (Ovoko – 8x revenue), EU wholesaler sync, order automation (SOAP, cron), Allegro price scraper, REST API, data pipelines (PostgreSQL, NBP, CDN), VW auction sniper, Nuxt.js+Stripe store, NLP-based CSV generators.
Portafolio
Program Magazynowy
ERP/WMS system for e-commerce designed from scratch. Real-time inventory sync across multiple marketplaces, picking route optimization, barcode scanning, automated warehouse document generation, and sales analytics with ROI tracking. Mobile app inclu
Sklep Internetowy DwParts.eu
E-commerce online store (Nuxt.js, Supabase) with full functionality: user account registration and management, Stripe payments, InPost Paczkomat integration, multi-language support (3 languages), admin panel, B2B portal with per-client discounts.
BroGear
E-commerce platform with Elasticsearch search engine indexing millions of products (<100ms queries). AI module (LLM + OCR) extracting OE part numbers from documents. Sales chatbot (RAG) guiding B2B/B2C customers through purchase flow. Dynamic pricing