{"schemaVersion":"jobsearcher.job.v1","id":"f865afb27a3794265eb90133","url":"https://jobsearcher.com/jobs/f865afb27a3794265eb90133","canonicalUrl":"https://jobsearcher.com/jobs/f865afb27a3794265eb90133","title":"Software Engineer I, Annotations","description":"About The Role\r\nHandshake AI is building the infrastructure that powers how AI work gets delivered at scale. Every project our operators launch, every fellow who works on those projects, and every task that flows through our platform relies on systems built by the HAI Annotation team.\r\nAs a Software Engineer I on this team, you'll build the core platform that enables operators to configure customer projects, manage complex tasking workflows, and ensure work moves reliably through our delivery pipelines. You'll work on foundational systems that are used across the organization and serve as building blocks for other engineering teams.\r\nThis is a highly cross-functional role where you'll partner closely with operators, product managers, product designers, and engineers across Handshake AI to create scalable, extensible solutions that improve both fellow and operator experiences.\r\nWhat You'll Do\r\nBuild and maintain backend systems that power project configuration and delivery workflows\r\nDevelop tools that operators use to set up and manage customer projects\r\nCreate scalable tasking and pipeline systems that support complex data generation processes\r\nImprove fellow tasking experiences through automation and workflow enhancements\r\nDesign extensible platform capabilities that can be leveraged by multiple teams across Handshake AI\r\nCollaborate closely with operators to understand pain points and translate operational needs into durable, efficient software solutions\r\nPartner with engineers across the organization to ensure platform systems are reliable, flexible, and easy to build upon\r\nContribute to system architecture, technical design reviews, and engineering best practices\r\nYou Have\r\n1+ years of professional software engineering experience through internships, full-time roles, research, or significant project work\r\nStrong programming fundamentals and experience building production software\r\nExperience with backend development and distributed systems concepts\r\nFamiliarity with modern web technologies and APIs\r\nExperience working with databases and data modeling\r\nAbility to break down complex problems and develop scalable solutions\r\nStrong communication skills and a collaborative mindset\r\nExcitement about working closely with operational stakeholders and solving workflow challenges\r\nBonus Points\r\nExperience with TypeScript\r\nExperience building internal tools, workflow systems, or platform infrastructure\r\nExposure to workflow orchestration, pipeline systems, or task management platforms\r\nExperience designing systems that support multiple teams or stakeholders\r\nFamiliarity with AI, annotation, or human-in-the-loop workflows\r\nExperience working in fast-moving startup environments\r\nWe Offer\r\nOwnership: Equity in a fast-growing company\r\nFinancial Wellness: 401(k) match, competitive compensation, financial coaching\r\nFamily Support: Paid parental leave, fertility benefits, parental coaching\r\nWellbeing: Medical, dental, and vision, mental health support, $500 wellness stipend\r\nGrowth: $2,000 learning stipend, ongoing development\r\nRemote & Office: Internet, commuting, and free lunch/gym in our SF office\r\nTime Off: Flexible PTO, 15 holidays + 2 flex days\r\nConnection: Team outings & referral bonuses\r\nExplore our mission, values, and comprehensive US benefits at joinhandshake.com/careers.\r\nJ-18808-Ljbffr","company":"Cacheflow","rawCompany":"cacheflow","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-06-25T01:21:39.542Z","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":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Engineer I, Annotations","description":"About The Role\r\nHandshake AI is building the infrastructure that powers how AI work gets delivered at scale. Every project our operators launch, every fellow who works on those projects, and every task that flows through our platform relies on systems built by the HAI Annotation team.\r\nAs a Software Engineer I on this team, you'll build the core platform that enables operators to configure customer projects, manage complex tasking workflows, and ensure work moves reliably through our delivery pipelines. You'll work on foundational systems that are used across the organization and serve as building blocks for other engineering teams.\r\nThis is a highly cross-functional role where you'll partner closely with operators, product managers, product designers, and engineers across Handshake AI to create scalable, extensible solutions that improve both fellow and operator experiences.\r\nWhat You'll Do\r\nBuild and maintain backend systems that power project configuration and delivery workflows\r\nDevelop tools that operators use to set up and manage customer projects\r\nCreate scalable tasking and pipeline systems that support complex data generation processes\r\nImprove fellow tasking experiences through automation and workflow enhancements\r\nDesign extensible platform capabilities that can be leveraged by multiple teams across Handshake AI\r\nCollaborate closely with operators to understand pain points and translate operational needs into durable, efficient software solutions\r\nPartner with engineers across the organization to ensure platform systems are reliable, flexible, and easy to build upon\r\nContribute to system architecture, technical design reviews, and engineering best practices\r\nYou Have\r\n1+ years of professional software engineering experience through internships, full-time roles, research, or significant project work\r\nStrong programming fundamentals and experience building production software\r\nExperience with backend development and distributed systems concepts\r\nFamiliarity with modern web technologies and APIs\r\nExperience working with databases and data modeling\r\nAbility to break down complex problems and develop scalable solutions\r\nStrong communication skills and a collaborative mindset\r\nExcitement about working closely with operational stakeholders and solving workflow challenges\r\nBonus Points\r\nExperience with TypeScript\r\nExperience building internal tools, workflow systems, or platform infrastructure\r\nExposure to workflow orchestration, pipeline systems, or task management platforms\r\nExperience designing systems that support multiple teams or stakeholders\r\nFamiliarity with AI, annotation, or human-in-the-loop workflows\r\nExperience working in fast-moving startup environments\r\nWe Offer\r\nOwnership: Equity in a fast-growing company\r\nFinancial Wellness: 401(k) match, competitive compensation, financial coaching\r\nFamily Support: Paid parental leave, fertility benefits, parental coaching\r\nWellbeing: Medical, dental, and vision, mental health support, $500 wellness stipend\r\nGrowth: $2,000 learning stipend, ongoing development\r\nRemote & Office: Internet, commuting, and free lunch/gym in our SF office\r\nTime Off: Flexible PTO, 15 holidays + 2 flex days\r\nConnection: Team outings & referral bonuses\r\nExplore our mission, values, and comprehensive US benefits at joinhandshake.com/careers.\r\nJ-18808-Ljbffr","datePosted":"2026-06-25T01:21:39.542Z","dateModified":"2026-06-25T01:21:39.542Z","hiringOrganization":{"@type":"Organization","name":"Cacheflow","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"f865afb27a3794265eb90133"},"url":"https://jobsearcher.com/jobs/f865afb27a3794265eb90133"}}