Gen AI Engineer at Cogninn

Designed and deployed generative AI pipelines, built a generative website assistant employing LLMs with RAG architecture, powered by FAISS vector search and RedisGraph for structured retrieval. Enhanced ASR model performance by more than 20% through fine-tuning, improved preprocessing, processor-with-LM integration using KenLM, and refined output via post-processing techniques. Engineered a Reinforcement Learning based path-finding agent grounded in GNN Time-Dependent A* search strategies and Transformer based forecasting to improve navigation efficiencies. Implemented VRAM-efficient image/text-to-video generation workflows, achieving operational pipelines within ~6 GB VRAM constraints using open-source models. Conducted and presented client-focused research and demos, selecting solutions within specified parameters and communicating project rationale and outcomes clearly.

Lance-Corporal, Signal Core at Hellenic Armed Forces

Oversaw daily operations of a military communications center across 7 departments, managing approximately 6 personnel and ensuring uninterrupted wired and wireless network support. Led preventive maintenance and repairs on communication equipment and network infrastructure, reinforcing system reliability for operational readiness. Developed and delivered cryptography, signaling, and authentication training to over 50 soldiers ahead of signal exercises, ensuring operational proficiency. Prepared recruits and center staff in wired, radio, and satellite telecommunications protocols, strengthening team capabilities.

Bioinformatics Analyst at iGEM Thessaloniki

Developed a Python-based miRNA-driven pancreatic cancer detection model, implementing neural networks and ensemble algorithms to predict key protein biomarkers. Enhanced performance and maintainability by selecting superior data structures and streamlining code logic. Managed codebase integrity and coherence, overseeing merges from multiple developers and ensuring operational consistency. Authored, reviewed, and tested code across multiple modules to uphold quality and functionality standards. Prepared comprehensive documentation, detailing system functionality, ML approaches, and integration steps within the project pipeline.

Machine Learning Engineer at Information Technologies Institute (ITI/CERTH)

Led full pipeline development, from preprocessing and cleanup of freight shipping data to predictive modeling using classic and state-of-the-art ensemble algorithms. Evaluated and compared ensemble approaches like XGBoost and Random Forest, researching their strengths and delivering actionable recommendations on the optimal model for the task. Implemented post-processing improvements to enhance model efficiency and prediction accuracy. Authored and presented a research paper, transforming practical findings into scholarly work presented at the Pan-Hellenic Conference on Informatics. Prepared detailed client-facing documentation, including performance comparisons and tailored algorithm proposals for time-forecast use cases.

Lance-Corporal, Signal Core at Hellenic Armed Forces

Oversaw daily operations of a military communications center across 7 departments, managed ~6 personnel, and ensured uninterrupted wired and wireless network support. Led preventive maintenance and repairs on communications equipment and network infrastructure, reinforcing system reliability for operational readiness. Delivered cryptography, signaling, and authentication training to over 50 soldiers ahead of signal exercises, ensuring operational proficiency. Prepared recruits and center staff in wired, radio, and satellite telecommunications protocols, strengthening team capabilities.