Nejla Ayvazoglu

Hi everyone! 👋 I'm Tessa, a Data Scientist and AI/ML Developer based in Ontario with a unique blend of experience in enterprise software engineering, applied machine learning, and now cybersecurity.

🔁 I bring 17 years of experience as a Mainframe Software Engineer, including 1.5 years at TD Bank in Toronto. Even before Cana TD bank experience, I had already started working on freelance AI and data science projects — and after gaining deep enterprise experience, I decided to fully return to the field I’m most passionate about: AI and Data. My journey continues, and I’m open to learning and contributing in any way I can!

🎓 I have a background in Mathematical Engineering, completed a graduate certificate in Applied AI & Machine Learning at Conestoga College, and I’m currently pursuing a postgraduate program in Cybersecurity at Lambton College. My long-term goal is to combine AI, data science, and cybersecurity into responsible, scalable solutions.

🔧 Skills & Interests:

📊 Predictive Modeling — Churn prediction, fraud detection, credit risk scoring

🤖 Machine Learning & NLP — scikit-learn, XGBoost, LSTM, sentiment analysis, classification

🧠 Deep Learning & LLMs — Transformers, HuggingFace, fine-tuning, prompt engineering, API deployment

⚙️ Tech Stack — FastAPI, Python, SQL, R, GitHub, Docker

💡 I enjoy working hands-on with data — from cleaning and exploration to modeling and deployment. I actively follow the latest developments in GenAI, HuggingFace, LangChain, and more.

I bring 17 years of experience as a Mainframe Software Engineer, including 1.5 years at TD Bank in Toronto. Even before Cana TD bank experience, I had already started working on freelance AI and data science projects — and after gaining deep enterprise experience, I decided to fully return to the field I’m most passionate about: AI and Data. My journey continues, and I’m open to learning and contributing in any way I can!

🎓 I have a background in Mathematical Engineering, completed a graduate certificate in Applied AI & Machine Learning at Conestoga College, and I’m currently pursuing a postgraduate program in Cybersecurity at Lambton College. My long-term goal is to combine AI, data science, and cybersecurity into responsible, scalable solutions.