Alexandru Obretin

Background

About Alexandru Obretin

I’m a Technical Team Lead and Senior Full-Stack Software Developer with a strong background in software architecture, backend development, and data-driven systems. Over the past several years, I’ve delivered solutions across fintech, telecom, and network infrastructure, guiding projects from concept to production in complex, high-security environments. I specialize in Spring Boot, Java, and Python, and have led initiatives involving cloud migration (GCP), CI/CD implementation, and system modernization. My experience spans both hands-on development and technical leadership—from upgrading legacy architectures and improving application performance to mentoring teams and aligning delivery with strategic goals. Alongside my industry work, I’m an Assistant Lecturer in data analysis and applied machine learning using Python, where I teach topics like NumPy, pandas, PCA, clustering, and dimensionality reduction. This academic engagement keeps me close to emerging technologies and strengthens my focus on clarity, learning, and continuous improvement - both in code and in teams.