Chien-Hsun Chang (張健勳) · CS Master's Student · Software Developer 🇹🇼

My interests include backend and platform engineering, data and ML systems, and digital twins.

💼 Open to 2027 opportunities — New Grad, Pre-hire, and R&D Substitute Service (研發替代役) roles in Taiwan, as well as remote opportunities, primarily in Backend / Platform Engineering, Data & ML Systems, and MLOps.

🌐 Website · 💼 LinkedIn · 📫 Email

I'm currently pursuing a Master's degree in Computer Science and Information Engineering at National Chung Cheng University (CCU). I work on backend services, APIs, data pipelines, and research infrastructure, turning project requirements and research ideas into working software systems.

• ⚙️ Backend & Platform — Experience developing and maintaining backend platforms across industry internship and research projects, including APIs, databases, data integration, testing, deployment, and long-term maintenance.
• 🖥️ Systems & Infrastructure — Experience with laboratory Linux server administration, containerized deployment, CI/CD, infrastructure maintenance, monitoring, and troubleshooting.
• 📊 Data & Research Systems — Building systems involving machine learning, time-series and geospatial data, spatial databases, simulation pipelines, and digital-twin applications.

Languages: Python · C / C++ · Java · SQL · JavaScript / TypeScript
Backend & Data: FastAPI · REST APIs · PostgreSQL · PostGIS · Data Pipelines
Testing & Automation: Automated Testing · Unit / Integration Testing · GitHub Actions · CI/CD
Infrastructure: Linux · Docker · Kubernetes · Helm · Prometheus · Grafana · Server Administration
Machine Learning: PyTorch · scikit-learn · Time-Series Modeling · Self-Supervised Learning
Geospatial: GIS · PyProj · Coordinate Systems · Spatial Data Processing
Frontend: React · Vue.js

I build and maintain open-source projects in backend systems, data processing, and developer tooling. I also contribute features, bug fixes, documentation, and other improvements to upstream projects.