Mai Ito

S

Principal Engineer at Harbor Health · VS Code extensions, TypeScript

Harbor Health
Tokyo, Japan · JST (UTC+9)
14+ years experience
Waseda University
English, Japanese
Open to work
Messaging unavailable

Overview

Currently at Harbor Health, where I work on developer tools. Cut p99 latency on the developer experience services from 598ms to 171ms. Reduced cloud spend on developer experience by 25% in two quarters. Before that: Stripe and Ayala Corporation. Most at home with VS Code extensions and Rust. Into vintage synthesizers.

Good reasons to reach out
  • Roles in B2B SaaS
  • Questions about B2B SaaS
Please don't message about
  • Agency or outsourcing pitches
  • Generic networking requests

Usually replies within a day

Skills
VS Code extensionsRustTypeScriptLSP
Open to workLooking for a role
closes in 3 months

Software Engineer roles in public sector tech - Tokyo or remote

Target roles
Software Engineer
Level
Senior
Industries
Consumer apps, Logistics
Work mode
On-site
Available
Immediately
Work authorization
Authorized to work in Japan
What I'm looking for
Hands-on work on Rust with room to mentor.
Not interested in
Agencies and outsourcing firms

14 years in developer tools. Strongest at VS Code extensions and Rust. Available immediately.

Tokyo, Japan · remote OKrustvs code extensionslsp
Open

Experience

  1. Principal Engineer
    Mar 2024 - Present
    Harbor Health · 2 yr 7 mo · Full-time · Tokyo, Japan
    • Led or co-led 39 investments, 3 of them now at Series B or later.
    • Backed 14 founders at pre-seed and seed.
  2. Software Engineer
    Feb 2021 - Mar 2024
    Stripe · 3 yr 1 mo · Full-time · Tokyo, Japan
    • Brought on-call pages for developer experience down from 33 a week to 1.
  3. Software Engineer
    Aug 2017 - Feb 2021
    Ayala Corporation · 3 yr 6 mo · Full-time · Tokyo, Japan
    • Wrote the Rust service that now handles 59 million requests a day.
    • Reduced cloud spend on developer experience by 21% in two quarters.
  4. Software Engineer
    Jan 2015 - Aug 2017
    Lenovo · 2 yr 7 mo · Full-time · Tokyo, Japan
    • Reduced cloud spend on developer experience by 24% in two quarters.
  5. Software Engineer
    Oct 2012 - Jan 2015
    Coupang · 2 yr 3 mo · Full-time · Tokyo, Japan
    • Moved 64% of developer experience traffic off a legacy monolith without a customer-facing incident.
    • Shipped 14 launches on the developer experience team without a rollback.

References

No references yet.

Education

  1. Waseda University
    BA, Information Technology
    2007 - 2011

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