Shang-Hao Yang

Backend Engineer
[email protected] | Taipei, Taiwan
Experience
Backend Engineer Giantforest Solutions Co., Ltd.

Led backend architecture in an 8-person team, driving new system development and legacy modernization.

  • Delivered a visitor management system with async messaging for reliable cross-system integration.
  • Modernized 6+ legacy desktop applications into web applications with unified SSO.
  • Built shared libraries for security, data access, and session management to standardize architecture.
  • Optimized CI/CD pipelines and introduced integration testing, reducing build times and incidents.
  • Mentored junior developers and established development workflow standards.
Personal Projects
GitResume

A Resume as Code SaaS — write resumes in YAML on GitHub, every push auto-generates PDF and web page.

  • Built the full product end-to-end: API server, dashboard, landing page, and webhook-driven build pipeline.
  • Supports multi-provider social login, SaaS billing, and custom domains with automated DNS/SSL.
  • Implemented cloud Infrastructure as Code (IaC) with Terraform and automated CI/CD pipelines via GitHub Actions.
Open Source Contributions
JHipster
  • 10+ merged PRs including CSRF/BREACH mitigation and OAuth 2.0 bug fixes.
Spring Security
  • PR #16589 — fixed OIDC ID Token not updating after Refresh Token flow.
Skills
Backend: Java, Go, Spring Boot, Gin, PostgreSQL, Redis
DevOps: Docker, CI/CD, Terraform, Cloudflare
Education
Applied Economics National Chiayi University