Founding Engineer
Sira
·Aug 13, 2026
- Salary
- $150k – $250k/yr
- Location
- San Francisco, California
- Type
- Full-time
- Department
- Engineering
- Source
- Y Combinator
Description
80% of the workforce doesn't sit at a desk. Their software is a spreadsheet from 2019.
Sira runs scheduling, timesheets, payroll, HR, and invoicing for deskless teams. We started with security guard companies — 50 to 300 officers, 24/7 coverage, payroll that has to be right to the minute or someone doesn't make rent. We replace their ADP + Connecteam + QuickBooks + cousin's spreadsheet stack.
YC S25. Real revenue, real logos.
You'd own whole surfaces. Pick a problem, talk to the customer, ship it, watch someone use it that week. The case for AI workflows has never been clearer, and it's in a product with real customer value. We can change the game, and you'd lead us on the product side, hand in hand.
You're a fit if you've shipped things people depended on and you're obsessed with customers — the kind of person who's in it for the moment someone tells you the thing you built made their day easier.
TypeScript, React/Next, Node, Postgres, AWS.
No good software exists in this industry, we can take on the full market!!!