Fractional Senior Engineering

I've successfully managed multiple concurrent part-time and consulting engagements for over five years. I'm an async-first, remote-native developer who delivers high-quality work independently across timezones.

What I Offer

Fractional Senior Developer
Embedded in your team 15–30 hours per week, shipping production code. Full-stack expertise in React/TypeScript, C#/.NET Core, SQL Server, and Node.js.
Technical Leadership
Team management, architecture reviews, code quality processes, mentoring junior developers, and CI/CD implementation.
Project Rescue & Acceleration
Help teams get unstuck. Establish development processes, migrate legacy codebases, improve deployment reliability, and get stalled projects shipping again.

How I Work

  • Async-first: Proactive communication, thorough PRs, and comprehensive documentation
  • Remote-native: Experienced working across US and Asia timezones with minimal synchronous meetings
  • Quality-focused: Emphasis on code reviews, automated testing, and maintainable architecture
  • Self-directed: Proven track record managing multiple concurrent projects independently

Selected Client Work

HP Life
Led a team of 2–5 developers building a next-generation learning management system serving thousands of learners globally. React/TypeScript, Next.js.
PullRequest
Expert code reviewer on React/TypeScript and C# projects for companies of all sizes, including Silvercar and Lunchbox.io. Reviewed hundreds of pull requests.
Vigor Medical Systems
Oversaw software engineering efforts for a medical startup from the ground up. Directed development of web-based provider dashboard and patient monitoring app.

Let's Talk

I'm open to part-time, fractional, or retainer-based engagements.

hello@henryjin.dev