About Me

I’m Rob Deas, a Principal Engineer and open-source contributor with over 20 years’ experience building JVM systems across government, transport, and media. My focus today is Java 21–25, Kotlin, Spring Boot, PostgreSQL, and developer tooling.

I run Robokeys Ltd, my consultancy and publishing company, and I maintain several open-source projects published to Maven Central and GitHub.

Notable Open Source

• 📦 JCoroutines — Structured concurrency for Java 21+ · GitHub · Maven Central
• 🛠 VerZanctuary — Kotlin CLI for safe work-in-progress snapshots · GitHub
• 🔐 Sandcastle-Auth — Spring Boot/Kotlin auth server with token governance · GitHub
• ⚡ RoboKey — Arduino Due programmable keyboard for automation workflows · GitHub
• 🐙 EmojiLogger — Emoji-enhanced logging for Kotlin + SLF4J · GitHub

Technical Interests

• Java & Kotlin concurrency (virtual threads, coroutines)
• Secure microservices with Spring Boot & PostgreSQL
• Developer productivity tools (CLI, workflow automation)
• Frontend with SvelteKit & HTMX
• Microcontrollers & hardware/software integration

Next Steps

This site is both a working notebook and a portfolio. You can explore projects, read technical blog posts, or connect with me directly.

💼 View Portfolio 🔗 LinkedIn