Gabor K.

Senior Software Engineer | Legacy Modernization + AI | Java EE · Python · Azure · LLMs | 30+ yrs building production systems | Open to U.S. (H-1B / O-1 sponsorship)

Greater Madrid Metropolitan Area

About

I'm a senior software engineer with 30+ years of combined experience across enterprise Java systems, modern AI engineering, and entrepreneurial business operations. My career has had two parallel tracks: deep enterprise engineering (Java EE, Oracle, PL/SQL, JSF) and shipping things on my own — from running multiple businesses in Spain to building production AI products today. I currently lead an international IT support team of 60+ people at Stellantis, covering 9 automotive brands across 7 countries, and in parallel I run my own engineering company (Ragna Rivoluziona SL) where I design and build production software end-to-end. What I'm working on right now: - orion-sync — a Next.js + Supabase marketplace synchronization platform that handles real-time stock, pricing, and order sync across BaseLinker, Miravia, Mirakl, and ManoMano for 3,715+ SKUs. - SuperARIA — a Jarvis-style multi-agent AI assistant (FastAPI + Claude/GPT) with session-isolated desktop execution, persistent memory, and secure mobile access. - An AI-powered product enrichment pipeline using Claude Haiku that extracts attributes, colors, and materials from raw marketplace listings at under $10 per 5,000 products. My core stack: → Backend: Java (8/11/17), Java EE (EJB, JMS, JPA/Hibernate), Python (FastAPI), Kotlin, Node.js, SQL, PL/SQL → AI: LLM integration (Claude, GPT, Gemini), LangChain, multi-agent systems, prompt engineering, RAG, MCP (Model Context Protocol) → Cloud & data: Microsoft Azure, Power BI (DAX, modeling), Power Automate, Oracle, PostgreSQL, Supabase, Firebase → Frontend & mobile: JSF (PrimeFaces, MyFaces), Next.js, React, Flutter, Android (Jetpack Compose) What I think makes me different from most senior engineers: I've also run real businesses (retail, IT repair shop, e-commerce on Amazon and Miravia), so I understand software as a business problem, not just a technical one. I write code that ships, gets used, and pays the bills. I'm currently exploring opportunities in the U.S. (Texas, North Carolina) with companies that sponsor work visas (H-1B / O-1 / L-1). My family and I are open to relocating. EU citizen (Hungary). If you're working on legacy modernization, AI-powered automation, or anything where deep enterprise experience meets modern AI engineering — I'd love to talk. Languages: Hungarian (native), Spanish (bilingual / C2), English (professional working proficiency) 📩 [email protected] 🌐 www.seguratech.es

Experience

  • Founder & Solutions Architect at Seguratech SL
    Jun 2019 - Present · 7 yrs 1 mo

    I run my own engineering company building production software end-to-end, with a focus on legacy modernization and AI-driven automation. Current work: - orion-sync — a marketplace synchronization platform (Next.js + Supabase + Node.js) integrating BaseLinker, Miravia, Mirakl, and ManoMano. Manages real-time stock, pricing, and order sync for 3,715+ SKUs. - SuperARIA — a Jarvis-style multi-agent AI assistant (FastAPI + Claude/GPT) with session-isolated desktop execution, persistent memory, and secure mobile access via Tailscale. - An AI-powered product enrichment pipeline using Claude Haiku to extract attributes, colors, and materials from raw marketplace listings — 95%+ catalog completion at under $10 USD per 5,000 products. - Python + Power Automate workflows integrating marketplaces with Axapta ERP, automating inventory and invoicing across multiple sales channels. - Azure infrastructure and Office 365 administration, including a cross-tenant OneDrive migration of ~942 GB across 9 users with full data integrity verification.

  • Team Leader & Data Analyst at Stellantis (ex-PSA Group)
    Jan 2018 - Present · 8 yrs 6 mos

    Lead an international IT support team of 60+ people across 7 countries deploying dealer-network ordering systems for 9 automotive brands (Peugeot, Citroën, Opel, Fiat, Jeep, DS, Alfa Romeo, Lancia, Leapmotor). • Built a PyQt6 desktop automation consolidating the monthly Executive Summary Network report from 18 source files and 33 Excel sheets — cutting manual processing time from days to minutes. • Designed Power BI dashboards for sales KPIs, conversion metrics, and dealer performance across the 9-brand network. • Resolved critical Salesforce failures in coordination with global engineering teams, restoring service for thousands of dealer users.