{"schemaVersion":"jobsearcher.job.v1","id":"ba837916fd990da4e704530d","url":"https://jobsearcher.com/jobs/ba837916fd990da4e704530d","canonicalUrl":"https://jobsearcher.com/jobs/ba837916fd990da4e704530d","title":"Founding Software Engineer","description":"Founding Software Engineer (Full-Stack / Backend) - AI PlatformLocation: San Francisco | Fully OnsiteSalary: Competitive $160,000 - $250,000 DOE + equity Investment: Seed-stage and backed by tier 1 investors We have partnered with a very exciting AI firm who are building an AI operating system for corporate transformation. They are on the lookout for a Founding Software Engineers to join the team. Exciting time to join the scale: early stage, funded by top-tier investors, part of a selective AI pilot program, and already live with paying pilots across private equity, government, and large enterprises.Please note: We are looking for engineers who want to join an intense start up environment; building towards Series A / B, big commitment but massive rewards and unrivalled experience. Tech Stack: Backend: Python, FastAPIFrontend: React, TypeScriptInfra: AWS (ECS Fargate, RDS, S3, CloudFront), Terraform, DockerDB: PostgresExperience: Build and scale the core platformAPIs, microservices, and orchestration systemsDesign, deploy, and operate production infrastructure on AWSWork directly with customers to map systems and deliver end-to-end solutionsShape product direction, technical architecture, and company culture as a founding team memberML / Applied AIHigh-agency builder who takes full ownership and moves fastComfortable in 0?1 environments and wearing multiple hatsConfident in high-intensity, customer-facing settingsObsessed with shipping polished, production-grade workEssential Experience Required:Backend or full-stack experience at a fast-paced startup or top-tier companyStrong fundamentals in APIs, databases, and cloud infrastructureExperience integrating enterprise systems or working with OAuth / SSOBeneficial: CS/CE/DS/EE undergraduate degree from a top 5 school (e.g., MIT, Stanford, Berkeley, CMU, UIUC)US Citizen (Not essential but helps with some of the clearance required on certain projects)Strong desire to join an intense start-up environmentApply ASAP if this is suitable - please note this is a fully onsite role based in San Francisco. We are moving fast on this.","company":"Xpertalent","rawCompany":"xpertalent","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-04-19T02:50:21.736Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Founding Software Engineer","description":"Founding Software Engineer (Full-Stack / Backend) - AI PlatformLocation: San Francisco | Fully OnsiteSalary: Competitive $160,000 - $250,000 DOE + equity Investment: Seed-stage and backed by tier 1 investors We have partnered with a very exciting AI firm who are building an AI operating system for corporate transformation. They are on the lookout for a Founding Software Engineers to join the team. Exciting time to join the scale: early stage, funded by top-tier investors, part of a selective AI pilot program, and already live with paying pilots across private equity, government, and large enterprises.Please note: We are looking for engineers who want to join an intense start up environment; building towards Series A / B, big commitment but massive rewards and unrivalled experience. Tech Stack: Backend: Python, FastAPIFrontend: React, TypeScriptInfra: AWS (ECS Fargate, RDS, S3, CloudFront), Terraform, DockerDB: PostgresExperience: Build and scale the core platformAPIs, microservices, and orchestration systemsDesign, deploy, and operate production infrastructure on AWSWork directly with customers to map systems and deliver end-to-end solutionsShape product direction, technical architecture, and company culture as a founding team memberML / Applied AIHigh-agency builder who takes full ownership and moves fastComfortable in 0?1 environments and wearing multiple hatsConfident in high-intensity, customer-facing settingsObsessed with shipping polished, production-grade workEssential Experience Required:Backend or full-stack experience at a fast-paced startup or top-tier companyStrong fundamentals in APIs, databases, and cloud infrastructureExperience integrating enterprise systems or working with OAuth / SSOBeneficial: CS/CE/DS/EE undergraduate degree from a top 5 school (e.g., MIT, Stanford, Berkeley, CMU, UIUC)US Citizen (Not essential but helps with some of the clearance required on certain projects)Strong desire to join an intense start-up environmentApply ASAP if this is suitable - please note this is a fully onsite role based in San Francisco. We are moving fast on this.","datePosted":"2026-04-19T02:50:21.736Z","dateModified":"2026-04-19T02:50:21.736Z","hiringOrganization":{"@type":"Organization","name":"Xpertalent","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"ba837916fd990da4e704530d"},"url":"https://jobsearcher.com/jobs/ba837916fd990da4e704530d"}}