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
- Design and run the scheduler that places sandboxes across 11 regions
- Cut cold starts below 500 ms without giving up isolation
- Own the trace store and its retention controls
- Write the design docs, and review the ones your teammates write
- Join the on-call rotation one week in five
What you bring
- Six or more years building backend systems in Go, Rust or similar
- Hands-on experience with containers, Firecracker or gVisor
- A habit of measuring before and after every change
- Clear written communication in English
Nice to have
- You have run a multi-region system in production
- You have contributed to an open-source runtime
How we hire
- 01
Intro call
30 minutes with the hiring manager.
- 02
Written exercise
A short design doc, paid, on your own time.
- 03
Team interviews
Three conversations with future teammates.
- 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.