About this role
## Security Engineer **Who We Are** Endex builds AI agents that handle complex, end-to-end work for the world’s most demanding teams. We’re deployed across leading financial institutions and Fortune 500 companies, embedded in the tools and workflows they rely on. We operate at the frontier of agentic knowledge work, partnering with top AI research labs and backed by the OpenAI Startup Fund. **About the Role** - **Location:** New York City (Primary), Denver, Chicago, Singapore (APAC), London, San Francisco, Austin, Los Angeles - **Commitment:** 5 days in-person You’ll help find meaningful security weaknesses and work with the team to fix them. As a Security Engineer at Endex, you’ll build security improvements across our applications and infrastructure—partnering directly with product engineers and compliance owners to turn identified risks into tested technical controls. ### Key Responsibilities - **Secure Product Architecture:** Review authentication, authorization, tenant boundaries, and data flows to find practical weaknesses before they reach production. - **Build Technical Defenses:** Improve cloud identity, secrets management, application protections, and security checks with the engineering team. - **Manage Vulnerabilities:** Investigate findings, prioritize remediation, and verify fixes. - **Support Secure Development:** Build useful checks and guidance into engineering workflows. - **Investigate and Learn:** Analyze security incidents and build detection or prevention improvements that address the underlying failure mode. ### What We’re Looking For - **Security Engineering Experience:** Investigated and remediated real application or cloud security issues. - **Software Fluency:** Can read code, build tooling, and work with production systems. - **Risk Judgment:** Prioritize based on impact and how a system is used. - **Clear Communication:** Explain findings and fixes so engineers can act. - **Practical Security Depth:** Inspect code and cloud systems, verify findings, and help implement fixes engineers can maintain. ### Nice to Have - Experience with cloud and identity security - Experience with enterprise SaaS or AI applications - Experience with cloud IAM, application security, threat modeling, or securing AI systems ### Benefits (Full-Time) - Health & Dental Insurance - Monthly Wellness Stipend - 401K Matching
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