Yusuke Ohashi

Platform engineer building reliable distributed systems.

Platform Engineer (Distributed Systems) with 10+ years iOS experience

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  • Platform: distributed systems, operability, reliability
  • Infra: CI/CD, observability, automation
  • iOS: 10+ years building and shipping apps (Swift, UIKit/SwiftUI, tooling)

Selected Work

A quick snapshot. I can share deeper technical writeups on request.

nostr

SPA client + profile

My nostr presence, powered by a small SPA client.

  • Web
  • SPA
  • nostr
RepoWebsite

sizify

Image resizer (Rust)

Image resizer written in Rust.

  • Rust
  • CLI
Repo

Dist

Distributed SNS posting CLI

CLI to create a post to distributed SNS (nostr, Bluesky, Mastodon).

  • CLI
  • nostr
  • Bluesky
  • Mastodon
Repo

JustAI

Tiny Chrome extension

A tiny Chrome extension that summarizes, translates, and answers your questions.

  • Chrome extension
  • Web
Repo

What I Do

  • Platform engineering for distributed systems
  • Operational excellence: build, ship, observe
  • Developer experience: tooling and automation
  • iOS application engineering (10+ years)

Recent Writing

Latest posts from this site.

Keycloak: The Architect's Guide to Identity and Access Management 2026-01-22 Dotfiles 2024-05-28 Writing C Compiler 2022-08-24 Github Issue Driven Blog 2022-07-07 XCConfig 2021-10-12