About - Nima Daryabar | AI Engineer & ML Developer

M.Sc. in Computer Science

University of Padua, Padua, Italy (2021–2024)

• Specialization: Artificial Intelligence, Machine Learning, and NLP
• Skills: PyTorch, TensorFlow, Deep Learning (RNN, CNN, LSTM, Transformers)
• Thesis: Exposing LLM Vulnerabilities through Poisoned Vector Databases in RAG Systems

B.Eng. in Computer Engineering

Bu-Ali Sina University, Hamedan, Iran (2010–2015)

• Major: Software Engineering
• Focused on: Algorithms, SQL, OOP (C, C++)
• Thesis: Design of a Web-based Exceptional Talents Admission System

AI Research Intern – LLMs

ICIS, Radboud University, Nijmegen, Netherlands (Oct 2023 – Mar 2024)

Conducted research on vulnerabilities of LLMs within RAG systems through poisoned vector databases, demonstrating up to 40% performance degradation.
Implemented memory-efficient fine-tuning for LLaMA-2 models (LoRA, QLoRA, 8-bit/4-bit quantization), enhancing scalability.
Developed a semantic search-driven QA pipeline using ChromaDB and InstructorEmbedding for high-quality contextual retrieval; using LangChain for task integration.
Streamlined document preprocessing and embedding workflows using PyPDFLoader and SentenceTransformers, optimizing processing of large unstructured datasets.

Freelance Software Developer

Remote (Oct 2017 – Jul 2021)

Delivered machine learning solutions, including a second-hand car price prediction system that explained over 90% of price variability (R² ≈ 0.90), using Python, Scikit-learn, and Decision Tree Regression. Improved data quality through feature engineering, missing value handling, and categorical encoding. Implementing web scraping with BeautifulSoup and Requests, and managed data storage using MySQL.
Led the development of a personalized fitness coach Android app at Mecatec using Java and Android Studio.
Developed robust web applications with Django, PHP, AngularJS, and JavaScript, emphasizing responsive design and scalable back-end architectures.
Collaborated closely with clients to create tailored software, and enhance operational efficiency.

Front-End Developer

Jahankit Electronics, Tehran, Iran (Mar 2017 – Sep 2017)

Led Scrum adoption, improving team efficiency and project delivery through Agile methodologies.
Developed a responsive e-commerce platform using JavaScript and Bootstrap, enhancing user engagement and contributing to a 20% increase in online sales.
Enhanced customer experience through focused user research and modular front-end implementation, achieving high user satisfaction.

Full Stack Developer

Mecatec, Hamedan, Iran (Feb 2016 - Dec 2016)

Developed responsive websites with PHP, JavaScript, CSS3, and MySQL, ensuring seamless functionality and scalability.
Improved website performance through optimized front-end design and database performance, increasing user engagement.
Collaborated within an agile team to deliver scalable, client-focused solutions tailored to client needs.

Web Development Intern

Bu-Ali Sina University, Hamedan , Iran (Jun 2014 - Sep 2014)

Designed and implemented a student-focused auction website to sell and trade books and goods using HTML5, CSS3, PHP, and MySQL, enhancing community trading and campus engagement.

About Me

M.Sc. in Computer Science

B.Eng. in Computer Engineering

AI Research Intern – LLMs

Freelance Software Developer

Front-End Developer

Full Stack Developer

Web Development Intern

Programming Languages

Databases

AI/ML Frameworks and Libraries

AI Techniques and Concepts

Cloud & DevOps Tools

Software Development