Hello! I'm Dimitris Kleitsas, a computer science graduate specializing in Artificial Intelligence with hands-on experience in Python, PyTorch, TensorFlow, and Hugging Face. I enjoy developing innovative AI solutions and tackling challenging projects, particularly in machine learning, deep learning, reinforcement learning, and natural language processing. With internship and freelance experiences, I have contributed to AI research platform, helping pave the road for continuous improvement and innovative, high quality solutions. Based in Thessaloniki, Greece, I'm continuously seeking opportunities to apply my AI expertise and grow in exciting, high-impact environments.…

Dimitris Kleitsas

Hello! I'm Dimitris Kleitsas, a computer science graduate specializing in Artificial Intelligence with hands-on experience in Python, PyTorch, TensorFlow, and Hugging Face. I enjoy developing innovative AI solutions and tackling challenging projects, particularly in machine learning, deep learning, reinforcement learning, and natural language processing. With internship and freelance experiences, I have contributed to AI research platform, helping pave the road for continuous improvement and innovative, high quality solutions. Based in Thessaloniki, Greece, I'm continuously seeking opportunities to apply my AI expertise and grow in exciting, high-impact environments.…

Available to hire

Hello! I’m Dimitris Kleitsas, a computer science graduate specializing in Artificial Intelligence with hands-on experience in Python, PyTorch, TensorFlow, and Hugging Face. I enjoy developing innovative AI solutions and tackling challenging projects, particularly in machine learning, deep learning, reinforcement learning, and natural language processing.

With internship and freelance experiences, I have contributed to AI research platform, helping pave the road for continuous improvement and innovative, high quality solutions. Based in Thessaloniki, Greece, I’m continuously seeking opportunities to apply my AI expertise and grow in exciting, high-impact environments.

See more

Skills

Experience Level

Python
Expert
PyTorch
Expert
GitHub
Expert
TensorFlow
Expert
AWS
Intermediate
Google Cloud
Intermediate

Language

Greek, Modern
Fluent
Bulgarian
Fluent
English
Advanced

Work Experience

Internship + Part Time / Freelance at MetaTopia
June 30, 2025 - September 1, 2025
Contributed to VirtuNet, a simulation platform for telecommunications systems. Implemented PPO in Python/TensorFlow for RISC configuration and supported AI research. Participated in developing a demo presented at ICMLCN involving spiking neural networks and reinforcement learning.
Freelance AI Engineer at Outlier
January 1, 2025 - Present
Worked on diverse AI-related projects, reviewing and refining AI-generated outputs to support quality improvement and model training.

Education

Bachelor's degree in Computer Science at Aristotle University of Thessaloniki
January 1, 2020 - January 1, 2025

Qualifications

High School Diploma
January 1, 2017 - January 1, 2020

Industry Experience

Software & Internet, Telecommunications, Education, Professional Services
    The Oracle

    An LLM powered feline trickster! This project is a Godot-based game that interacts with Google’s Gemini generative language models via a Node.js proxy hosted on the Google Cloud Platform. Ask away at: https://www.twine.net/signin

    Multi-Document AI Assistant

    A powerful RAG-enabled AI assistant capable of answering questions from multiple PDF manuals with source citations. Created using Streamlit, LangChain, FAISS, and Google Gemini 2.0 Flash Lite. Available at: https://www.twine.net/signin