# On-site backend developer jobs in the US > Browse on-site backend developer jobs in the US 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=backend®ion=us&workplace=onsite Last updated: 2026-10-25 146 open jobs, page 1 of 6, newest first. Each job links to its posting on the company's own applicant tracking system, which the Lazee extension autofills. ## Jobs - [Senior Backend Engineer - Platform](https://www.workatastartup.com/jobs/117065) at Piramidal. New York, NY, US · On-site · Full-time · $250 - $300 + 0.25% - 1.00% equity · posted 2026-10-16. Apply on Y Combinator. - [Senior Backend Engineer, Core Trading Systems](https://www.workatastartup.com/jobs/115420) at Novig. New York · On-site · Full-time · $200K - $260K · posted 2026-10-09. Apply on Y Combinator. - [Software Engineer, Backend (All Levels)](https://www.workatastartup.com/jobs/115060) at Zip. San Francisco · On-site · Full-time · posted 2026-10-07. Apply on Y Combinator. - [Software Engineer, Multimodal Backend Systems](https://www.workatastartup.com/jobs/114722) at Eventual. San Francisco, CA, US · On-site · Full-time · $150K - $250K · posted 2026-10-06. Apply on Y Combinator. - [Senior Software Engineer, Backend](https://www.workatastartup.com/jobs/114821) at Forage. San Francisco, United States / New York, United States · On-site · Full-time · $185K - $200K · posted 2026-10-06. Apply on Y Combinator. - [Founding Engineer](https://www.workatastartup.com/jobs/114400) at Hubble. Seattle, WA, US · On-site · Full-time · $150K - $200K + 1.00% - 3.00% equity · posted 2026-10-05. Apply on Y Combinator. - [Senior Backend Engineer](https://www.workatastartup.com/jobs/112531) at Mintlify. San Francisco · On-site · Full-time · $190K - $265K · posted 2026-09-28. Apply on Y Combinator. - [Backend Engineer](https://www.workatastartup.com/jobs/112528) at Mintlify. San Francisco · On-site · Full-time · $130K - $200K · posted 2026-09-28. Apply on Y Combinator. - [Founding Software Engineer](https://www.workatastartup.com/jobs/111227) at Copperlane. San Francisco, CA, US · On-site · Full-time · $140K - $220K + 0.50% - 2.00% equity · posted 2026-09-25. Apply on Y Combinator. - [Engineer - Backend](https://www.workatastartup.com/jobs/111393) at DiligenceSquared. New York City · On-site · Full-time · $160K - $200K · posted 2026-09-25. Apply on Y Combinator. - [Software Engineer (Backend)](https://www.workatastartup.com/jobs/110256) at Kobalt Labs. New York City · On-site · Full-time · $250K · posted 2026-09-25. Apply on Y Combinator. - [Backend Engineer, Generalist](https://www.workatastartup.com/jobs/112032) at Lapel. San Francisco · On-site · Full-time · $150K - $250K · posted 2026-09-25. Apply on Y Combinator. - [Backend Engineer, Agents](https://www.workatastartup.com/jobs/112031) at Lapel. San Francisco · On-site · Full-time · $150K - $250K · posted 2026-09-25. Apply on Y Combinator. - [Backend Engineer, Core Platform](https://www.workatastartup.com/jobs/112030) at Lapel. San Francisco · On-site · Full-time · $150K - $250K · posted 2026-09-25. Apply on Y Combinator. - [Backend Engineer, Primitives](https://www.workatastartup.com/jobs/112029) at Lapel. San Francisco · On-site · Full-time · $150K - $250K · posted 2026-09-25. Apply on Y Combinator. - [Founding Engineer](https://www.workatastartup.com/jobs/110499) at Limrun. San Francisco, CA, US · On-site · Full-time · $180K - $300K · posted 2026-09-25. Apply on Y Combinator. - [Software Engineer Backend Intern (Summer 2027)](https://www.workatastartup.com/jobs/111588) at Astranis. San Francisco, California, United States · On-site · Full-time · posted 2026-09-25. Apply on Y Combinator. - [Member of Technical Staff | Engineering & Research](https://www.workatastartup.com/jobs/106868) at attimet. San Francisco, CA, US · On-site · Full-time · $125K - $250K + 0.10% - 1.00% equity · posted 2026-08-26. Apply on Y Combinator. - [Backend Engineer](https://www.workatastartup.com/jobs/108551) at 222. New York, NY, US · On-site · Full-time · $165K - $275K · posted 2026-08-26. Apply on Y Combinator. - [Member of Technical Staff (Product)](https://www.workatastartup.com/jobs/104831) at Jarmin. San Francisco, CA, US · On-site · Full-time · $200K - $300K + 0.25% - 1.00% equity · posted 2026-08-26. Apply on Y Combinator. - [Member of Technical Staff (Agents)](https://www.workatastartup.com/jobs/104830) at Jarmin. San Francisco, CA, US · On-site · Full-time · $200K - $300K + 0.25% - 1.00% equity · posted 2026-08-26. Apply on Y Combinator. - [Member of Technical Staff (Agent Infrastructure)](https://www.workatastartup.com/jobs/104829) at Jarmin. San Francisco, CA, US · On-site · Full-time · $200K - $300K + 0.25% - 1.00% equity · posted 2026-08-26. Apply on Y Combinator. - [Founding Engineer](https://www.workatastartup.com/jobs/107957) at SubImage. San Francisco, CA, US · On-site · Full-time · $170K - $230K + 0.50% - 1.00% equity · posted 2026-08-26. Apply on Y Combinator. - [Product Engineer](https://www.workatastartup.com/jobs/105465) at primitive. San Francisco, CA, US · On-site · Full-time · $190K - $230K + 0.25% - 0.75% equity · posted 2026-08-26. Apply on Y Combinator. - [Product Engineer, Backend](https://www.workatastartup.com/jobs/104495) at David AI. San Francisco · On-site · Full-time · $165K - $225K · posted 2026-08-26. Apply on Y Combinator. Next page: https://lazee.dev/careers?role=backend®ion=us&workplace=onsite&page=2 ## Broader searches - [On-site jobs in the US](https://lazee.dev/careers?region=us&workplace=onsite) (3,811 jobs) - [Backend developer jobs in the US](https://lazee.dev/careers?role=backend®ion=us) (374 jobs) - [On-site backend developer jobs](https://lazee.dev/careers?role=backend&workplace=onsite) (200 jobs) ## Browse by role - [On-site engineering jobs in the US](https://lazee.dev/careers?role=engineering®ion=us&workplace=onsite) (1,844 jobs) - [On-site full stack developer jobs in the US](https://lazee.dev/careers?role=fullstack®ion=us&workplace=onsite) (694 jobs) - [On-site sales jobs in the US](https://lazee.dev/careers?role=sales®ion=us&workplace=onsite) (494 jobs) - [On-site AI/ML engineer jobs in the US](https://lazee.dev/careers?role=ai-ml®ion=us&workplace=onsite) (341 jobs) - [On-site customer success jobs in the US](https://lazee.dev/careers?role=support®ion=us&workplace=onsite) (276 jobs) - [On-site hardware engineer jobs in the US](https://lazee.dev/careers?role=hardware®ion=us&workplace=onsite) (257 jobs) - [On-site marketing jobs in the US](https://lazee.dev/careers?role=marketing®ion=us&workplace=onsite) (173 jobs) - [On-site software engineer jobs in the US](https://lazee.dev/careers?role=software®ion=us&workplace=onsite) (172 jobs) - [On-site product manager jobs in the US](https://lazee.dev/careers?role=product®ion=us&workplace=onsite) (139 jobs) - [On-site design jobs in the US](https://lazee.dev/careers?role=design®ion=us&workplace=onsite) (102 jobs) - [On-site DevOps jobs in the US](https://lazee.dev/careers?role=devops®ion=us&workplace=onsite) (74 jobs) - [On-site security jobs in the US](https://lazee.dev/careers?role=security®ion=us&workplace=onsite) (43 jobs) - [On-site data jobs in the US](https://lazee.dev/careers?role=data®ion=us&workplace=onsite) (40 jobs) - [On-site frontend developer jobs in the US](https://lazee.dev/careers?role=frontend®ion=us&workplace=onsite) (37 jobs) - [On-site QA jobs in the US](https://lazee.dev/careers?role=qa®ion=us&workplace=onsite) (23 jobs) - [On-site mobile developer jobs in the US](https://lazee.dev/careers?role=mobile®ion=us&workplace=onsite) (17 jobs) ## Browse by country - [On-site backend developer jobs in India](https://lazee.dev/careers?role=backend®ion=india&workplace=onsite) (24 jobs) - [On-site backend developer jobs in the UK](https://lazee.dev/careers?role=backend®ion=uk&workplace=onsite) (13 jobs) ## Browse by workplace - [Remote backend developer jobs in the US](https://lazee.dev/careers?role=backend®ion=us&workplace=remote) (132 jobs) - [Hybrid backend developer jobs in the US](https://lazee.dev/careers?role=backend®ion=us&workplace=hybrid) (24 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)