Startup Job Boardby The Nonlinear Project

Jobs Companies Departments Feature Your Jobs

A free resource by The Nonlinear Project

Jobs at recently funded startups, updated daily.

Feature Your Jobs Subscribe to the newsletter© 2026 The Nonlinear Project

Jobs at Castle | Startup Job Board

← All Companies

Castle

Pre-Seed · $1M · June 20252 active jobs

Careers page →

Backend Software Engineer

Engineering & Product · Harvard Square

$98K - $145K

Software Engineer

Engineering & Product · Harvard Square

$98K - $145K