Senior Engineer (AI Engineer)We're looking for a Senior AI and backend engineer to help build and scale our product as we roll it out to early customers and beyond. You'll play a critical role in shaping our AI-driven security platform, collaborating closely with the founding team.Your Experience & Skills5+ years in a core software engineering team, shipping scalable software2+ years developing ML- or AI-driven featuresStrong backend and systems engineering fundamentalsExperience training and deploying ML models and data-driven servicesFamiliarity with the latest LLM and ML advancementsAbility to navigate ambiguity and solve complex technical challenges collaboratively(Desirable) Experience with Python, SQL, cloud infrastructure (AWS, GCP, Azure)Mindset & FitCollaborative thrives in a fast-paced startup environmentStrong opinions, loosely held willing to debate, iterate, and adjustBias for action prioritizes, ships fast, and avoids over-engineeringPassionate about AI and cybersecurityDesire to have impact on all aspects of the company's successWhy Join Us?Early impact: Help shape a category-defining product in GenAI securityGrowth & ownership: Work directly with founders and tech leads to drive innovationCutting-edge tech: Build with LLMs, AI security, and enterprise AI adoption strategiesAbout OpsinOpsin 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.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 position.