# Ferenc Papp — Senior Full-Stack Developer & AI Solutions Engineer

> Senior full-stack developer and AI solutions engineer with 15+ years of experience, pairing scalable web engineering (Laravel, Vue.js, Python) with production-ready generative AI and LLM systems. Based in Debrecen, Hungary; working with teams across the EU and the US.

Since October 2024, Ferenc works dedicatedly with DataExpert as a Senior Full-Stack Developer — architecting scalable, high-performance Progressive Web Apps on a Laravel backend and Vue.js frontend, with Python scripts and microservices — and with its sister company Rubiklab as a Senior AI Solutions Engineer on generative AI integrations and R&D, including the in-house LabIQ product.

Core expertise: PHP, Laravel, Symfony, Yii2, Python and FastAPI on the backend; Vue.js, React, Svelte, TypeScript and PWA on the frontend; LLM integration, fine-tuning and benchmarking, semantic search, vector databases, embeddings, LLM-based multi-class classification, RAG pipelines, hyperparameter tuning (temperature, top-k/top-p) for deterministic output, and agentic workflows for AI; MySQL, PostgreSQL, MongoDB and Redis for data; Docker, Linux, AWS, CI/CD and Nginx for DevOps.

Availability: primary focus is on flagship projects with DataExpert and Rubiklab, with limited capacity alongside that for freelance web development, AI integration, and technical consulting engagements. Languages: Hungarian (native), English (fluent), German (basic).

## Pages

- [Portfolio (English)](https://pappfer.hu/en/): full profile — about, services, tech stack, experience and contact
- [Portfolio (Hungarian)](https://pappfer.hu/hu/): teljes magyar nyelvű profil
- [Portfolio (German)](https://pappfer.hu/de/): vollständiges deutschsprachiges Profil
- [Résumé (JSON Resume)](https://pappfer.hu/resume.json): machine-readable CV in JSON Resume format

## Profiles

- [LinkedIn](https://www.linkedin.com/in/pappfer): professional profile and updates
- [GitHub](https://github.com/pappfer): open-source code and repositories
- [Stack Overflow](https://stackoverflow.com/users/3736962/pappfer): Q&A contributions
- [X](https://x.com/pappfer): posts and updates

## Contact

- [Email](mailto:pappfer@pappfer.hu): direct contact for freelance, consulting, and collaboration enquiries