{"schemaVersion":"jobsearcher.job.v1","id":"3c4f32dcbf77b76babf20fc0","url":"https://jobsearcher.com/jobs/3c4f32dcbf77b76babf20fc0","canonicalUrl":"https://jobsearcher.com/jobs/3c4f32dcbf77b76babf20fc0","title":"Senior Engineer (Full Stack) ?","description":"As a Senior Full Stack Engineer , you'll help define and build the core foundation of our product. You'll work across the stack, own key features end-to-end , and collaborate closely with founders, customers, and tech leads to shape the future of GenAI security .\r\nYour Experience &Skills 4–8+ years of experience in core software engineering\r\nExperience building front end components in modern frameworks such as React, Next.js, and similar\r\nExperience designing scalable systems, APIs, and data architecture\r\nExperience shipping production software in a product-focused environment\r\nAbility to work through ambiguity and solve complex technical problems\r\n(Desirable) Experience working with GenAI or ML in a professional, personal, or academic setting\r\n(Desirable) Familiarity with TypeScript and the Node.js ecosystem\r\nMindset &Fit Collaborative - thrives in a fast-paced startup environment\r\nStrong opinions, loosely held - willing to debate, iterate, and adjust\r\nBias for action - prioritizes, ships fast, and avoids over-engineering\r\nPassionate about AI and cybersecurity\r\nDesire to have impact on all aspects of the company's success\r\nWhy Join Us? Early impact: Help shape a category-defining product in GenAI security\r\nGrowth & ownership: Work directly with founders and tech leads to drive innovation\r\nCutting-edge tech: Build with LLMs, AI security, and enterprise AI adoption strategies\r\nAbout Opsin Opsin is a venture-backed GenAI security company, funded by top-tier investors including Race Capital . We empower enterprises to safely adopt GenAI solutions like Microsoft Copilot, Google Gemini, and other LLM-powered agents by monitoring and securing enterprise data access . Our platform ensures employees can leverage AI without exposing sensitive or over-permissioned information.\r\nEmployment Type\r\nFull-Time\r\nCompensation\r\nCompetitive salary, benefits, and equity\r\nLocation\r\nSan Jose, CA / SF Bay Area (hybrid). The team works together in person 2–3 days a week at our locations in downtown San Jose and San Ramon. In-person collaboration is key for this position.\r\nExcited to secure the future of GenAI? Join us!\r\nJ-18808-Ljbffr","company":"Opsin","rawCompany":"opsin","city":"San Jose","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-04-09T15:39:50.662Z","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":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"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":"Senior Engineer (Full Stack) ?","description":"As a Senior Full Stack Engineer , you'll help define and build the core foundation of our product. You'll work across the stack, own key features end-to-end , and collaborate closely with founders, customers, and tech leads to shape the future of GenAI security .\r\nYour Experience &Skills 4–8+ years of experience in core software engineering\r\nExperience building front end components in modern frameworks such as React, Next.js, and similar\r\nExperience designing scalable systems, APIs, and data architecture\r\nExperience shipping production software in a product-focused environment\r\nAbility to work through ambiguity and solve complex technical problems\r\n(Desirable) Experience working with GenAI or ML in a professional, personal, or academic setting\r\n(Desirable) Familiarity with TypeScript and the Node.js ecosystem\r\nMindset &Fit Collaborative - thrives in a fast-paced startup environment\r\nStrong opinions, loosely held - willing to debate, iterate, and adjust\r\nBias for action - prioritizes, ships fast, and avoids over-engineering\r\nPassionate about AI and cybersecurity\r\nDesire to have impact on all aspects of the company's success\r\nWhy Join Us? Early impact: Help shape a category-defining product in GenAI security\r\nGrowth & ownership: Work directly with founders and tech leads to drive innovation\r\nCutting-edge tech: Build with LLMs, AI security, and enterprise AI adoption strategies\r\nAbout Opsin Opsin is a venture-backed GenAI security company, funded by top-tier investors including Race Capital . We empower enterprises to safely adopt GenAI solutions like Microsoft Copilot, Google Gemini, and other LLM-powered agents by monitoring and securing enterprise data access . Our platform ensures employees can leverage AI without exposing sensitive or over-permissioned information.\r\nEmployment Type\r\nFull-Time\r\nCompensation\r\nCompetitive salary, benefits, and equity\r\nLocation\r\nSan Jose, CA / SF Bay Area (hybrid). The team works together in person 2–3 days a week at our locations in downtown San Jose and San Ramon. In-person collaboration is key for this position.\r\nExcited to secure the future of GenAI? Join us!\r\nJ-18808-Ljbffr","datePosted":"2026-04-09T15:39:50.662Z","dateModified":"2026-04-09T15:39:50.662Z","hiringOrganization":{"@type":"Organization","name":"Opsin","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"San Jose","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"3c4f32dcbf77b76babf20fc0"},"url":"https://jobsearcher.com/jobs/3c4f32dcbf77b76babf20fc0"}}