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PhD student in Artificial Intelligence at Universitat Rovira i Virgili and AI Engineering Lead at AI Tech Solutions. I specialize in designing and deploying full AI systems end to end with a strong focus on custom NLP solutions such as text classification, translation, summarization, SEO optimization and intelligent automation. My expertise covers LLMs, RAG pipelines, knowledge graphs and multimodal AI research, bridging advanced academic work with practical scalable software for real world impact.…PhD student in Artificial Intelligence at Universitat Rovira i Virgili and AI Engineering Lead at AI Tech Solutions. I specialize in designing and deploying full AI systems end to end with a strong focus on custom NLP solutions such as text classification, translation, summarization, SEO optimization and intelligent automation. My expertise covers LLMs, RAG pipelines, knowledge graphs and multimodal AI research, bridging advanced academic work with practical scalable software for real world impact.

Sebastian Buzdugan

Full Stack Developer, Web Developer, Front-End Developer, +6

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PhD student in Artificial Intelligence at Universitat Rovira i Virgili and AI Engineering Lead at AI Tech Solutions. I specialize in designing and deploying full AI systems end to end with a strong focus on custom NLP solutions such as text classification, translation, summarization, SEO optimization and intelligent automation. My expertise covers LLMs, RAG pipelines, knowledge graphs and multimodal AI research, bridging advanced academic work with practical scalable software for real world impact.…PhD student in Artificial Intelligence at Universitat Rovira i Virgili and AI Engineering Lead at AI Tech Solutions. I specialize in designing and deploying full AI systems end to end with a strong focus on custom NLP solutions such as text classification, translation, summarization, SEO optimization and intelligent automation. My expertise covers LLMs, RAG pipelines, knowledge graphs and multimodal AI research, bridging advanced academic work with practical scalable software for real world impact.

Available to hire

PhD student in Artificial Intelligence at Universitat Rovira i Virgili and AI Engineering Lead at AI Tech Solutions. I specialize in designing and deploying full AI systems end to end with a strong focus on custom NLP solutions such as text classification, translation, summarization, SEO optimization and intelligent automation. My expertise covers LLMs, RAG pipelines, knowledge graphs and multimodal AI research, bridging advanced academic work with practical scalable software for real world impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Romanian, Moldavian, Moldovan

Fluent

Work Experience

AI Engineering Lead (Consultant) at AI Tech Solutions Ltd.

October 1, 2024 - Present

Leading development of NewsAI (stealth AI platform), SalRash (payment gateway with AI + crypto), and contributing to Galambo (AI chatbot). Coordinating full-stack AI architecture and deployment across distributed engineering teams. Building and deploying end-to-end ML pipelines and LangChain-based agents for document understanding, classification, ranking, retrieval, and task automation.

AI Technology Leader (Consultant) at Recognos Romania

July 31, 2025 - October 23, 2025

Fine-tuned SLMs and LLMs using Azure Machine Learning Studio, Azure AI Foundry, and custom Hugging Face pipelines with Unsloth. Designed and deployed full RAG systems in Azure from unstructured documents using OCR, intelligent chunking, embedding generation, vector indexing, similarity search, hybrid retrieval, metadata filtering, query rewriting, and contextual prompt assembly. Created full Neo4j knowledge graphs with Cypher to support multi-hop Graph-RAG chatbot architectures. Developed and managed custom MCP servers within Azure for modular LLM inference workflows. Evaluated and extended leading RAG platforms including GoodGist, BotPress, Azure RAG, Neo4j LLM Stack, and The Attic. Contributed to internal AI webinars and team training sessions focused on fine-tuning, RAG design, and responsible LLM deployment practices.

Software Engineering Team Lead ( CIM ) at Christ CISCON

October 31, 2024 - October 23, 2025

Led a 4-member team establishing the Cluj office and aligning technical onboarding. Developed Angular + .NET microservices and containerized them with Docker/Kubernetes. Modernized legacy systems into IoT-ready architectures and integrated lightweight AI/NLP tools. Built and maintained enterprise web systems using Angular (latest) for the frontend and .NET/C# for backend microservices.

Full Stack Developer Intern (Contract) at Biscuit Beacon

October 31, 2023 - October 23, 2025

Migrated legacy Wix platform to React + Firebase with reusable UI components and serverless Cloud Functions. Implemented Redux Toolkit and dynamic imports to optimize rendering and maintain state.

Junior Flutter Developer (Contract) at Frend App

December 31, 2022 - October 23, 2025

Developed Flutter modules (chat, profiles, location) using Riverpod and GoRouter. Integrated Firebase Auth, Firestore, and push notifications for real-time sync.

AI Engineering Lead (Consultant) at AI Tech Solutions Ltd.

October 1, 2024 - Present

AI Technology Leader (Consultant) at Recognos Romania

July 1, 2025 - October 23, 2025

Fine-tuned SLMs and LLMs using Azure Machine Learning Studio, Azure AI Foundry, and custom Hugging Face pipelines with Unsloth. Designed and deployed full RAG systems in Azure from unstructured documents using OCR, intelligent chunking, embedding generation, vector indexing, similarity search, hybrid retrieval, metadata filtering, query rewriting, and contextual prompt assembly. Created full Neo4j knowledge graphs with Cypher, building complex entity relationships to support multi-hop Graph-RAG chatbot architectures. Developed and managed custom MCP (Model Context Protocol) servers within Azure for modular LLM inference workflows. Evaluated and extended leading RAG platforms including GoodGist, BotPress, Azure RAG, Neo4j LLM Stack, and The Attic. Contributed to internal AI webinars and team training sessions focused on fine-tuning, RAG design, and responsible LLM deployment practices.

Software Engineering Team Lead ( CIM ) at Christ CISCON

October 1, 2024 - October 23, 2025

Full Stack Developer Intern (Contract) at Biscuit Beacon

October 1, 2023 - October 23, 2025

Migrated legacy Wix platform to React + Firebase with reusable UI components and serverless Cloud Functions. Implemented Redux Toolkit and dynamic imports to optimize rendering and maintain state.

Junior Flutter Developer (Contract) at Frend App

December 1, 2022 - October 23, 2025

Developed Flutter modules (chat, profiles, location) using Riverpod and GoRouter. Integrated Firebase Auth, Firestore, and push notifications for real-time sync.