I'm a researcher in Natural Language Processing and Artificial Intelligence, with a focus on Large Language Models, Multi-Agent Systems, Retrieval-Augmented Generation (RAG), and Reinforcement Learning for reasoning.
🎓 Incoming PhD Student at the UKP Lab, TU Darmstadt, under the supervision of Prof. Iryna Gurevych. My research is part of the HAICC project (Human-AI Collaboration for Cybersecurity) within ATHENE, exploring how reinforcement-learned LLM agents can advance CVE (vulnerability) retrieval.
- 🎓 PhD in Computer Science — TU Darmstadt, UKP Lab, HAICC / ATHENE
- 🎓 Integrated Master (BSc & MSc) in Electrical and Computer Engineering
National Technical University of Athens (NTUA) — Grade: 8.76/10 - 🎓 Evaggeliki Model High School of Smyrna — Grade: 19.6/20
- AI Software Engineer — VeltistonAI, Athens, Greece (Oct 2024 – May 2026)
- Carried out research in Multi-Agent LLM Systems and RAG pipelines applied in the legal domain
- Worked on an LLM-powered Legal Assistant tool for contract comparison and negotiation analysis
- Designed and built from scratch an agentic, MCP-based architecture for a healthcare chatbot, with information retrieved via RAG and custom tools
- Deployed LLMs on Cloud and on premise
- 📄 PAKTON: A Multi-Agent Framework for Question Answering in Long Legal Agreements
Accepted for oral presentation at the Main Conference of EMNLP 2025
🔗 Source code: petrosrapto/PAKTON
- 🌐 Website: petrosraptopoulos.com
- 💻 GitHub: @petrosrapto
- 💼 LinkedIn: linkedin.com/in/petrosrapto
- 📬 Email: petrosrapto@gmail.com