Antti Korhonen

S

VP of Engineering at Mill Bio · CLI design, TypeScript

Mill Bio
Copenhagen, Denmark · CET (UTC+1)
11+ years experience
École Polytechnique
English, Danish
Messaging unavailable

Overview

22 years in software engineering, the last 1 at Mill Bio, where I lead the developer experience team. Cut p99 latency on the developer experience services from 724ms to 80ms. Before that: Farfetch and Allianz. Kannada theatre fan.

Good reasons to reach out
  • Second opinions on CLI design decisions
Please don't message about
  • Requests to fix your code for free
  • Generic networking requests

Best reached early in the week

Skills
TypeScriptLSPCLI designVS Code extensionscompilersRust

Experience

  1. VP of Engineering
    Nov 2025 - Present
    Mill Bio · 11 mo · Full-time · Copenhagen, Denmark
    • Moved 83% of developer experience traffic off a legacy monolith without a customer-facing incident.
    • Cut p99 latency on the developer experience services from 685ms to 131ms.
    • Wrote the CLI design service that now handles 12 million requests a day.
  2. Software Engineer
    Nov 2023 - Aug 2025
    Farfetch · 1 yr 9 mo · Full-time · Copenhagen, Denmark
    • Cut p99 latency on the developer experience services from 762ms to 70ms.
  3. Senior Software Engineer
    Apr 2021 - Nov 2023
    Allianz · 2 yr 7 mo · Full-time · Copenhagen, Denmark
    • Wrote the VS Code extensions service that now handles 53 million requests a day.
  4. Senior Engineering Manager
    Sep 2019 - Apr 2021
    Trade Republic · 1 yr 7 mo · Full-time · Copenhagen, Denmark
    • Wrote the VS Code extensions service that now handles 11 million requests a day.
  5. Director of Engineering
    Jan 2016 - Sep 2019
    Farfetch · 3 yr 8 mo · Full-time · Copenhagen, Denmark
    • Brought on-call pages for developer experience down from 19 a week to 1.
    • Cut p99 latency on the developer experience services from 675ms to 44ms.

Projects

Open-source Rust toolkit
2024

A small library for developer tools that 626 developers star on GitHub.

Write-up: developer tools in practice
2023

A long-form guide to developer tools for people starting out.

References

No references yet.

Education

  1. École Polytechnique
    Ingénieur, Electrical Engineering
    2000 - 2004

Details

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