About the role
You will work on the sandbox runtime that runs 1.2M agent runs a month: scheduling, isolation, snapshots and the trace pipeline behind every replay. Small team, real ownership, and a pager you share with four other engineers.
What you will do
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Design and run the scheduler that places sandboxes across 11 regions
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Cut cold starts below 500 ms without giving up isolation
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Own the trace store and its retention controls
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Write the design docs, and review the ones your teammates write
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Join the on-call rotation one week in five
What you bring
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Six or more years building backend systems in Go, Rust or similar
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Hands-on experience with containers, Firecracker or gVisor
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A habit of measuring before and after every change
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Clear written communication in English
Nice to have
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You have run a multi-region system in production
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You have contributed to an open-source runtime
How we hire
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01
Intro call
30 minutes with the hiring manager.
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02
Written exercise
A short design doc, paid, on your own time.
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03
Team interviews
Three conversations with future teammates.
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04
Offer
Within a week of the last interview.
APPLY
Apply for this role. We reply in a week.
No cover letter needed. Share a link to your CV or LinkedIn and a few lines on what you want to work on. The hiring manager reads every application.
Prefer email? careers@lattis.dev
Thanks, your application is in. The hiring manager replies within five business days.