Full-stack engineer (9+ yrs) shipping React, Java/Spring, Python and DevOps end to end. Remote from Tokyo, async-friendly, contract only.

I am a full-stack software engineer with 9+ years of experience building and scaling production systems end to end. My core stack is React and TypeScript on the front end; Java/Spring, PHP, and Python on the back end; SQL data layers on MySQL, PostgreSQL, Oracle, and SQLite; and Docker/Kubernetes infrastructure with CI/CD (Jenkins, GitHub Actions, SonarQube, Firebase). I have also done native Android and React Native mobile work and JP-EN technical translation.

I work as an independent contractor invoicing from Tokyo, Japan, so there is no work-authorization or sponsorship overhead. I am fully remote and very effective in async teams, and my JST hours give useful follow-the-sun coverage for US and EU clients.

I focus on measurable outcomes. On past engagements I cut incident response time by 30%, sped up reporting by 80%, improved mobile performance by 50%, and reduced warehouse sorting time by more than half. I founded Flying Bears, a consultancy where I have delivered custom web applications and two AI products end to end.

Native English, advanced Japanese. You can see my work at mikefarrelly.com, flyingbears.io, github.com/MikeMikerson, and linkedin.com/in/mike-farrelly.

Work Terms

Availability: about 20 hours per week to start, flexible, can scale up. Earliest start within 1-2 weeks, sooner for small engagements. Hours: based in JST (UTC+9); comfortable async and happy to schedule overlap with US and EU teams. Communication: Slack, chat, or short calls; async written updates by default. Engagement: independent contractor invoicing from Japan; SafePay and milestone-based payment preferred. Rate is flexible and scales with scope.