# Staff & principal on-site full stack developer jobs > Browse staff & principal on-site full stack developer jobs at top tech companies, updated every 12 hours. Each role links to the original posting on the company's ATS, which Lazee autofills in a few clicks. Canonical: https://lazee.dev/careers?role=fullstack&level=staff&workplace=onsite Last updated: 2026-10-25 39 open jobs, page 1 of 2, newest first. Each job links to its posting on the company's own applicant tracking system, which the Lazee extension autofills. ## Jobs - [Software Engineer (Mid-level, Senior, or Staff)](https://www.workatastartup.com/jobs/116571) at Legora. New York, NY, US · On-site · Full-time · $175K - $369K · posted 2026-10-15. Apply on Y Combinator. - [Staff Engineer, IOI (Internet of Industrials)](https://www.workatastartup.com/jobs/115283) at Oway. San Francisco, CA, US · On-site · Full-time · $220K - $300K + 0.30% - 1.00% equity · posted 2026-10-08. Apply on Y Combinator. - [Technical Staff: Full Stack Engineer](https://www.workatastartup.com/jobs/114422) at Usul. San Francisco Office · On-site · Full-time · $160K - $240K + 0.05% - 0.40% equity · posted 2026-10-05. Apply on Y Combinator. - [Staff Software Engineer](https://www.workatastartup.com/jobs/113294) at Shepherd. New York, NY, US · On-site · Full-time · $225K - $255K · posted 2026-10-01. Apply on Y Combinator. - [Staff Generalist Engineer](https://www.workatastartup.com/jobs/109469) at Greptile. San Francisco · On-site · Full-time · $250K - $300K · posted 2026-09-25. Apply on Y Combinator. - [Staff Engineer](https://www.workatastartup.com/jobs/110567) at Wordware. San Francisco · On-site · Full-time · $280K - $400K · posted 2026-09-25. Apply on Y Combinator. - [Staff Engineer](https://www.workatastartup.com/jobs/106674) at Kastle. San Francisco · On-site · Full-time · $250K - $320K · posted 2026-08-26. Apply on Y Combinator. - [Senior/Staff Software Engineer (Product)](https://www.workatastartup.com/jobs/103941) at Craniometrix. New York, NY, US · On-site · Full-time · $175K - $250K + 0.10% - 0.40% equity · posted 2026-08-26. Apply on Y Combinator. - [Principal Engineer (backed by Y Combinator, $5M+ ARR, $23M+ raised)](https://www.workatastartup.com/jobs/107528) at Legion Health. San Francisco · On-site · Full-time · $250K - $400K · posted 2026-08-26. Apply on Y Combinator. - [Staff Software Engineer, Frontend/Fullstack - Moveworks](https://jobs.smartrecruiters.com/ServiceNow/744000144418509) at ServiceNow. Mountain View, CALIFORNIA, United States · On-site · Full-time · posted 2026-08-19. Apply on SmartRecruiters. - [Staff Software Engineer, Product Innovation](https://www.workatastartup.com/jobs/103568) at LineLeap. San Francisco, CA, US / New York, NY, US · On-site · Full-time · $200K - $400K + 0.10% - 0.50% equity · posted 2026-07-27. Apply on Y Combinator. - [Staff Software Engineer, Agent Systems and Product Quality](https://www.workatastartup.com/jobs/100471) at CharacterQuilt. New York, NY, US · On-site · Full-time · $250K - $350K + 0.50% - 3.00% equity · posted 2026-07-27. Apply on Y Combinator. - [Staff Engineer](https://www.workatastartup.com/jobs/102159) at LiteLLM. San Francisco · On-site · Full-time · $240K - $270K · posted 2026-07-27. Apply on Y Combinator. - [Staff Product Engineer, Full Stack](https://www.workatastartup.com/jobs/102392) at David AI. San Francisco · On-site · Full-time · $195K - $315K · posted 2026-07-27. Apply on Y Combinator. - [Staff Software Engineer, Platform](https://www.workatastartup.com/jobs/102386) at David AI. San Francisco · On-site · Full-time · $195K - $315K · posted 2026-07-27. Apply on Y Combinator. - [Staff Software Engineer](https://www.workatastartup.com/jobs/102426) at Metriport. San Francisco, CA, US · On-site · Full-time · $200K - $260K · posted 2026-07-27. Apply on Y Combinator. - [Founding Engineer - Product (Staff)](https://www.workatastartup.com/jobs/102418) at Ardent. San Francisco, CA, US · On-site · Full-time · $150K - $200K + 1.00% - 3.00% equity · posted 2026-07-27. Apply on Y Combinator. - [Staff Product Engineer](https://www.workatastartup.com/jobs/102327) at Blacksmith. New York City · On-site · Full-time · $280K - $380K · posted 2026-07-27. Apply on Y Combinator. - [Staff Systems Engineer](https://www.workatastartup.com/jobs/102326) at Blacksmith. New York City · On-site · Full-time · $280K - $380K · posted 2026-07-27. Apply on Y Combinator. - [Staff Product Engineer](https://www.workatastartup.com/jobs/102317) at Blacksmith. New York City · On-site · Full-time · $280K - $380K · posted 2026-07-27. Apply on Y Combinator. - [Staff Systems Engineer](https://www.workatastartup.com/jobs/102316) at Blacksmith. New York City · On-site · Full-time · $280K - $380K · posted 2026-07-27. Apply on Y Combinator. - [Staff Engineer](https://www.workatastartup.com/jobs/100971) at Mercura. Munich · On-site · Full-time · posted 2026-07-25. Apply on Y Combinator. - [Staff Full Stack Engineer](https://www.workatastartup.com/jobs/100474) at Sully. Mountain View, CA, US · On-site · Full-time · $200K - $300K · posted 2026-07-25. Apply on Y Combinator. - [Senior / Staff Founding Engineer](https://www.workatastartup.com/jobs/97833) at Rovi Health. New York, United States · On-site · Full-time · posted 2026-06-27. Apply on Y Combinator. - [Staff Engineer, Full Stack (San Francisco)](https://www.workatastartup.com/jobs/95142) at Short Story. San Francisco · On-site · Full-time · $250K · posted 2026-05-28. Apply on Y Combinator. Next page: https://lazee.dev/careers?role=fullstack&level=staff&workplace=onsite&page=2 ## Broader searches - [Staff & principal on-site tech jobs](https://lazee.dev/careers?level=staff&workplace=onsite) (241 jobs) - [Staff & principal full stack developer jobs](https://lazee.dev/careers?role=fullstack&level=staff) (134 jobs) - [On-site full stack developer jobs](https://lazee.dev/careers?role=fullstack&workplace=onsite) (862 jobs) ## Browse by role - [Staff & principal on-site engineering jobs](https://lazee.dev/careers?role=engineering&level=staff&workplace=onsite) (181 jobs) - [Staff & principal on-site AI/ML engineer jobs](https://lazee.dev/careers?role=ai-ml&level=staff&workplace=onsite) (48 jobs) - [Staff & principal on-site product manager jobs](https://lazee.dev/careers?role=product&level=staff&workplace=onsite) (30 jobs) - [Staff & principal on-site software engineer jobs](https://lazee.dev/careers?role=software&level=staff&workplace=onsite) (27 jobs) - [Staff & principal on-site DevOps jobs](https://lazee.dev/careers?role=devops&level=staff&workplace=onsite) (24 jobs) - [Staff & principal on-site backend developer jobs](https://lazee.dev/careers?role=backend&level=staff&workplace=onsite) (16 jobs) - [Staff & principal on-site design jobs](https://lazee.dev/careers?role=design&level=staff&workplace=onsite) (10 jobs) - [Staff & principal on-site hardware engineer jobs](https://lazee.dev/careers?role=hardware&level=staff&workplace=onsite) (10 jobs) ## Browse by experience - [Mid level on-site full stack developer jobs](https://lazee.dev/careers?role=fullstack&level=mid&workplace=onsite) (559 jobs) - [Senior on-site full stack developer jobs](https://lazee.dev/careers?role=fullstack&level=senior&workplace=onsite) (172 jobs) - [On-site full stack developer internships](https://lazee.dev/careers?role=fullstack&level=intern&workplace=onsite) (43 jobs) - [Entry level on-site full stack developer jobs](https://lazee.dev/careers?role=fullstack&level=entry&workplace=onsite) (29 jobs) - [Manager-level on-site full stack developer jobs](https://lazee.dev/careers?role=fullstack&level=manager&workplace=onsite) (20 jobs) ## Browse by workplace - [Staff & principal remote full stack developer jobs](https://lazee.dev/careers?role=fullstack&level=staff&workplace=remote) (39 jobs) ## Related - [Lazee.dev home: the job application autofill extension](https://lazee.dev) - [Jobs API](https://lazee.dev/api) - [About Lazee.dev](https://lazee.dev/about) - [Privacy Policy](https://lazee.dev/privacy) - [Terms of Service](https://lazee.dev/terms)