Member of Technical Staff, Security Engineering

Inception creates the world’s fastest, most efficient AI models. Our Mercury model is the world’s fastest reasoning LLM and first commercially available diffusion LLM, delivering 5x greater speed and efficiency than today’s LLMs, with best-in-class quality. We are the AI researchers and engineers behind such breakthrough AI technologies as diffusion models, flash attention, and DPO. The Role We're hiring a hands-on Staff Security Engineer to build the security foundation for a frontier AI platform serving enterprise customers — owning product/API security, enterprise security architecture, compliance readiness, and incident response as the company scales. This is a senior/staff-level role for someone with 6+ years of experience who has operated as a TL/TLM or staff+ engineer, remains deeply hands-on, and can provide the leadership presence to make delegation and prioritization decisions as Inception grows. You'll be the first/early security leader at a company where security directly affects customer trust, revenue, and product velocity. You'll own and drive the systems, processes, and infrastructure that make Inception secure by default: cloud security, network isolation, access controls, incident response, compliance readiness, secure engineering workflows, and customer-facing security requirements. This role is ideal for someone who lives and breathes security, but is s [... source excerpt omitted ...] rity research. We're looking for traditional enterprise/product security execution from an "inverted T" engineer: broad software engineering ability with a deep spike in security. You'll be the internal expert who helps us navigate enterprise security, privacy, compliance, and infrastructure risk as we scale — a technical leader, not a friction point for the engineering team. What You'll Own Software engineering fundamentals: This is a software engineering role with a security specialization. Expect to spend 70%+ of your time writing code, building security tools, and automating security best practices. You'll need strong command of CS fundamentals, to design, build, and main [... source excerpt omitted ...] rise security architecture & threat modeling. Design secure systems and guide backend, product, and platform engineers on security architecture and threat modeling for Inception's customer-facing API and enterprise deployments. API / product security. Lead proactive threat protection for a public API product handling enterprise usage, analogous to companies exposing API surfaces like ChatGPT or Claude. Compliance, certifications, and enterprise readiness. Lead or materially drive security compliance and certifications, including SOC 2 (including ongoing Type 2 readiness) and ISO 27001, plus data privacy and security best practices. VPC, GDPR, incident response, and 24/7 securi