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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Security Software Engineer - **Company:** Roblox - **Location:** San Mateo, CA, United States - **Experience:** Expert - **Salary:** $326,060.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, C Sharp (Programming Language), C++ (Programming Language), Computer Engineering, Software Design Documents, Identity and Access Management, Python (Programming Language), Public Key Infrastructure, Role-Based Access Control, Rust (Programming Language), Istio, Large Language Models, Backend, Information Technology, Roblox, Virtual Agents - **Published:** August 13, 2026 - **Apply:** https://careers.roblox.com/jobs/8099958?gh_jid=8099958 ## About the Role * 8+ years of relevant professional experience building scalable, distributed backend systems, with a track record of driving architecture end to end. * Deep expertise in identity and access management - authentication, authorization, and access-control models such as RBAC, ABAC, or risk-based access control. * Hands-on experience with several of: PKI and certificate/key lifecycle management, mTLS, SPIFFE/SPIRE or comparable workload-identity systems, service mesh, secret management (e.g., Vault), and privileged access management (PAM). * Proficiency in at least one systems language such as Go, Rust, Java, C++, Python, or C# .NET, and a habit of building systems rather than only configuring vendor tools. * Experience leading the technical work of other engineers - setting direction across teams, writing influential design docs, and mentoring senior talent. * AI fluency: you use AI tools in your daily workflow, understand LLM capabilities and limitations, and can reason about what it means to give an AI agent an identity and permissions. * A Bachelor's degree or equivalent experience in Computer Science, Computer Engineering, or a similar technical field. You are * A systems thinker. You reason about failure modes, blast radius, and reliability, and you design access that stays secure and available even when dependencies fail. * Security-minded and pragmatic. You are passionate about least privilege and zero trust, but you optimize for the Builder experience and adoption, not controls for their own sake. * A force multiplier. You make the engineers and teams around you better through mentorship, clear writing, and high-quality technical leadership. * A strong communicator. You translate deep technical tradeoffs for both engineers and executives, and you build alignment across organizational boundaries. * Bar-raising and hands-on. You still love to build, and you set the standard for engineering quality on the hardest problems. ## Description * Lead the architecture for production identity and access. Define and evolve the end-to-end design for machine, workload, human, and AI-agent identity across our hybrid on-prem and cloud fleet, making secure access invisible when it can be and intuitive when it needs attention. * Drive mTLS and workload identity to full production enforcement. Lead the technical strategy for our SPIFFE/SPIRE-based identity platform, service-mesh integration, managed service accounts, and certificate issuance, storage, and rotation. * Advance just-in-time, least-privilege access for engineers. Architect just-in-time, least-privilege, and break-glass access to production, replacing static, long-lived credentials with short-lived, auditable access that stays reliable even during dependency or identity-provider outages. * Evolve the centralized authorization engine and a secure golden path. Mature our centralized authorization engine and the access-control models behind it (RBAC/ABAC and risk-based access) so decisions are consistent, fine-grained, and testable. * Pioneer identity and access for AI agents. Define how agents obtain credentials, receive scoped permissions, and have their sessions managed across their lifecycle, setting the patterns for agentic identity at Roblox.. * Lead across the org and raise the bar. Author RFCs and multi-year roadmaps, align stakeholders across Roblox Platform, mentor senior and staff engineers, and raise the technical bar through design review, on-call ownership, and hiring. ## Related Videos - [Agentic employees in world's most downloaded FinTech app](https://www.wearedevelopers.com/videos/100123-agentic-employees-in-world-s-most-downloaded-fintech-app) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Rate-limiting using eBPF and Istio: How to protect your SaaS customers from themselves](https://www.wearedevelopers.com/videos/100220-rate-limiting-using-ebpf-and-istio-how-to-protect-your-saas-customers-from-themselves) - [Real-World Security for Busy Developers](https://www.wearedevelopers.com/videos/1545-real-world-security-for-busy-developers) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Get started with securing your cloud-native Java microservices applications](https://www.wearedevelopers.com/videos/123-get-started-with-securing-your-cloud-native-java-microservices-applications) ## Related Articles - [Events like RSAC Get You CISOs. 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