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

💼 Seeking 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.

I'm currently pursuing a Master's degree in Computer Science and Information Engineering at National Chung Cheng University (CCU), Taiwan.

I build backend services, data pipelines, and infrastructure for software and ML systems. My experience spans industry internships, research projects, Linux server administration, and open-source development.

My main interests include Backend / Platform Engineering, Data & ML Systems, MLOps, and Digital Twins.

• ⚙️ Backend & Platform Engineering — Developing APIs, database-backed services, data integration workflows, and maintainable backend systems across industry and research projects.
• 🖥️ Systems & Infrastructure — Managing Linux servers, containerized services, CI/CD pipelines, monitoring, deployment environments, and infrastructure troubleshooting.
• 📊 Data & ML Systems — Building systems involving machine learning workflows, time-series and geospatial data, spatial databases, simulation pipelines, and digital-twin applications.

I build and maintain open-source tools for data processing, validation, and developer workflows. I also contribute bug fixes, features, and tests to upstream projects.

KServe — Kubernetes-based model serving

• PR #4687 · Merged — Fixed logging configuration behavior to respect user-defined handlers.
• PR #4919 · Open — Addressed hostname validation issues in RawDeployment mode.
• PR #5198 · Open — Proposed runtimeClassName support for ServingRuntime configurations.

Other open-source tools I maintain include LineageGuard, EvidenceMatrix, EntityLinkage, and TWDisaster.

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