Opsin
Overview
Founding Engineer (Full Stack) at Opsin — 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. Base pay range
$120,000.00/yr - $200,000.00/yr What You’ll Do
Build and own foundational product features Work directly with early customers to iterate on solutions Design and implement scalable backend services, data tiers, and APIs Contribute to full-stack development, including frontend components in modern frameworks Participate in end-to-end engineering, from design to DevOps Your Experience & Skills
4–10+ years of experience in core software engineering Experience building front end components in modern frameworks such as React, Next.js, and similar Experience designing scalable systems, APIs, and data architecture Experience shipping production software in a product-focused environment Ability to work through ambiguity and solve complex technical problems (Desirable) Experience with GenAI or ML in a professional, personal, or academic setting (Desirable) Python ecosystem experience (Desirable) Familiarity with TypeScript and the Node.js ecosystem Mindset & Fit
Collaborative — thrives in a fast-paced startup environment Strong opinions, loosely held — willing to debate, iterate, and adjust Bias for action — prioritizes, ships fast, and avoids over-engineering Passionate about AI and cybersecurity Desire to have impact on all aspects of the company’s success Why Join Us?
Early impact: Help shape a category-defining product in GenAI security Growth & ownership: Work directly with founders and tech leads to drive innovation Cutting-edge tech: Build with LLMs, AI security, and enterprise AI adoption strategies Excited to secure the future of GenAI? Join us! About Opsin
Opsin is a venture-backed GenAI security company, funded by top-tier investors including Race Capital. We enable 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. Employment Type
Full-Time Compensation
Competitive salary, benefits, and equity Location
San 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 role.
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Founding Engineer (Full Stack) at Opsin — 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. Base pay range
$120,000.00/yr - $200,000.00/yr What You’ll Do
Build and own foundational product features Work directly with early customers to iterate on solutions Design and implement scalable backend services, data tiers, and APIs Contribute to full-stack development, including frontend components in modern frameworks Participate in end-to-end engineering, from design to DevOps Your Experience & Skills
4–10+ years of experience in core software engineering Experience building front end components in modern frameworks such as React, Next.js, and similar Experience designing scalable systems, APIs, and data architecture Experience shipping production software in a product-focused environment Ability to work through ambiguity and solve complex technical problems (Desirable) Experience with GenAI or ML in a professional, personal, or academic setting (Desirable) Python ecosystem experience (Desirable) Familiarity with TypeScript and the Node.js ecosystem Mindset & Fit
Collaborative — thrives in a fast-paced startup environment Strong opinions, loosely held — willing to debate, iterate, and adjust Bias for action — prioritizes, ships fast, and avoids over-engineering Passionate about AI and cybersecurity Desire to have impact on all aspects of the company’s success Why Join Us?
Early impact: Help shape a category-defining product in GenAI security Growth & ownership: Work directly with founders and tech leads to drive innovation Cutting-edge tech: Build with LLMs, AI security, and enterprise AI adoption strategies Excited to secure the future of GenAI? Join us! About Opsin
Opsin is a venture-backed GenAI security company, funded by top-tier investors including Race Capital. We enable 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. Employment Type
Full-Time Compensation
Competitive salary, benefits, and equity Location
San 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 role.
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