Siarhei HolubLinkedInGitHub

Hi, I'm SiarheiYes, the name is weird. Don't bother to pronounce : )

I'm a staff software engineer in San Francisco. I build agentic systems and applied AI tools. Away from the keyboard, I bake.

What I'm working on

  1. Delivery can't keep up with how fast code gets written

    IdeaCodeReview and testsCI/CDRelease24 written15 waiting9 released

    Going from an idea to working code takes minutes now. Review and tests didn’t get that much faster. Changes still get through, just not at the speed or volume they arrive, so they pile up there, and release can only go as fast as that queue. I’m working on making review, testing and release keep pace.

  2. Getting more out of every Tracer investigation

    Pass 1: checks every source · 3 lookupsPass 2: goes to the evidence · 1 lookupAlertTracerNew RelicPostHogGoogle CloudRoot cause✓ Closed

    Tracer watches New Relic, PostHog and Google Cloud, investigates incidents on its own, reports the root cause to Slack and closes issues once they stop. An investigation already costs very little. What I’m after now is quality of work per cost: adapting to each system it watches, going straight to the evidence that matters, and getting the root cause right more often for the same spend.

  3. Making a tower defense game fun to play and to hear

    TowerSound

    I’m building a tower defense game for iOS. The code is the easy part. The hard part is game design (waves, towers and pacing that stay fun) and sound design (every hit, wave and upgrade should sound right without getting tiring).

I also keep a log of AI news, each claim checked against its source.