Ou David — Systems Engineer

I build backend services and platform infrastructure for systems that need to keep working when integrations or data flows get messy. I write about Go, HTTP, protocol design, and the production bugs that make implicit assumptions visible.

Start with a technical topic

• Go performance and benchmarks: string construction, allocation costs, and runnable case studies.
• HTTP and backend engineering in Go: follow a request from the network to a handler, then look at the code behind it.
• JSON-RPC and MCP: understand the messages first, then build a small Go server.
• Integration debugging: timezone boundaries, fractional cents, and the assumptions between systems.

Selected project

Go Language Case Studies contains the runnable examples, tests, and benchmarks behind my articles. Start with string concatenation vs. strings.Builder or the UNIX process API example.

More about my backend and platform work · All projects