Senior Application & AI Security Engineer
Say hello to opportunities. If you’re looking to be part of what’s next in communication, you’re in the right place.At RingCentral, we believe the best customer experiences happen when humans and AI work together. Our agentic voice AI portfolio—AIR, AVA, and ACE—brings together automation, assistance, and insights across the entire conversation lifecycle. The result? More seamless, intelligent experiences for businesses everywhere.With $2.5B+ in ARR and $250M invested in R&D annually, we’re building the future of AI-powered business communications. About the Application Security TeamThe Application Security team, part of RingCentral's CISO organization, partners with engineering teams to secure their applications — practically and early.We combine automation, tooling, expert guidance, and targeted assessments to raise the security baseline, engaging early in the SDLC and focusing deeper expertise where risk is highest. We help teams understand risk and design effective mitigations, while ownership of security stays with the teams building the product.About the RoleWe are looking for a Senior Application & AI Security Engineer with a strong understanding of application vulnerabilities and how they can be detected, exploited, and remediated. You will apply established application-security practices—including security design review, threat modeling, code review, penetration testing, and automated security testing—to RingCentral applications throughout the development lifecycle.As a complementary part of the role, you will extend these practices to AI-enabled products and AI-native development workflows. This includes assessing AI-based features in RingCentral products, AI tools, coding agents, MCP servers, and agentic integrations, as well as evaluating how AI can responsibly improve activities such as vulnerability detection, code review, threat modeling, penetration testing, triage, and remediation.You will partner with Product Management, Engineering, Site Reliability Engineering, Operations, and architecture teams to identify security risks, translate them into actionable guidance, and help teams implement effective mitigations. Your goal is to strengthen application security while helping RingCentral adopt AI technologies safely and use them to improve the scale and effectiveness of its security practices.This role requires on-site presence at our office 4 days a week to support effective collaboration and teamwork.Key responsibilities:Collaborate with Product Management, Engineering, Site Reliability Engineering, Operations, and architecture teams to align products and applications with security architecture and secure development standards.Perform security design reviews, threat modeling, security requirements analysis, targeted code reviews, and penetration testing for new applications and significant product changes.Identify gaps in existing security architecture and work with engineering teams to design, review, and approve...