Hi, I'm Zeheng (Matthew) Lin — a Senior Developer at Loblaw Digital, where I was promoted from Developer II for consistently delivering high-impact backend systems that drive measurable business results. I specialize in building scalable, resilient platforms using Java Spring Boot, React/Next.js, and Google Cloud Platform.

I hold a BS in Statistics with a Specialist in Data Mining and Machine Learning from the University of Toronto. This unique blend of software engineering and data science allows me to approach problems with both analytical rigor and practical engineering solutions.

At Loblaw Digital, I've led the architecture of customer engagement platforms that drove a 130% increase in pharmacy user engagement, designed data pipelines with Apache Airflow and BigQuery, and built API orchestration services that reduced frontend complexity across multiple product teams. I'm passionate about cloud-native architectures, CI/CD automation, and API design using tools like Apigee, Akamai, and GCP services.

Beyond traditional development, I'm deeply interested in AI and LLM technologies — from building RAG-based knowledge platforms with vector databases to prompt engineering and LLM orchestration. I also hold a Jr Penetration Tester certification from TryHackMe, reflecting my commitment to security-first development.

Previously, I co-founded Sumer Inc., where I built cross-platform mobile applications with React Native and GraphQL on AWS. I thrive in environments where I can architect solutions end-to-end and mentor others along the way.