Software engineer in Wellington, NZ
Backend and full-stack engineer building reliable platform and product systems.
I'm Reilly Oldham. I work across backend systems, observability, developer tooling, and product interfaces, with a focus on software that is reliable, debuggable, and easy to operate.
Latest from me
Building an agent runtime with AWS Lambda MicroVMs
Building Autohive's agent runtime with mounted files, fast startup and access to existing connections.
October 29, 2026AWS LambdaMicroVMs
Read latest postMay 24, 2026
Catchy for Wear OS, bridging TWAs and the Wearable Data Layer
Building the Catchy Wear OS companion app, with synced favourites and live public transport data on your wrist.
Read postNovember 21, 2025
Deriving cache write tokens from OpenRouter
How to recover Anthropic cache write tokens from OpenRouter using cost-based backsolving.
Read post