23,576 Principal jobs
Principal engineering roles setting technical direction org-wide.
Principal System Safety Engineer
Who We Are Textron Systems is part of Textron, a $14 billion, multi-industry company employing 35,000 talented makers, thinkers, creators and doers worldwide. We make things that fly, hover, zoom and launch. Things…
Principal Software Engineer
Principal engineer leading the Safety Foundation team at Roblox, building scalable backend infrastructure and AI-first safety workflows to protect 100M+ daily users.
Principal Software Engineer - Content Lifecycle
Principal Engineer at Roblox designing and building core workflows in C++ for the game engine and Studio, enabling creators and AI agents to collaborate on 3D content at scale.
Principal Network Engineer
Principal Network Engineer designs and scales Roblox’s global backbone and edge networks to support millions of daily users and immersive 3D experiences.
Principal Software Engineer - Roblox Database
Principal engineer on Roblox’s next-gen database platform, designing indexing, replication, and scaling features to keep millions of concurrent users fast and reliable.
Senior/Principal Software Engineer - Creator Data
Principal engineer leading distributed storage systems (Data Stores, Memory Stores) and cloud services for Roblox creators, ensuring 100% uptime and building observability dashboards.
Principal Fullstack/Backend Software Engineer, User Connections
Principal engineer tech-leading Roblox's User Connections team, designing and building the scalable backend systems behind social features like friending, profiles, identity, and online presence used by hundreds of millions of users. On-site at Roblox HQ in San Mateo, CA, working mainly with compiled languages such as C#, Java, or C++.
Principal Security Engineer, Enterprise Security
Design and build enterprise-grade identity and access systems (SSO, OAuth, SCIM) and security automation tools to protect Roblox’s corporate infrastructure at scale.
Principal Security Software Engineer, Application Security
Leads application security initiatives at Roblox, shaping security standards, threat modeling, and secure design for immersive gaming/media platforms; collaborates with engineering teams to automate security practices and mentor engineers.
Principal Software Engineer, Engineering Acceleration
Principal engineer defining the next decade of Roblox’s developer platform, scaling source control, CI, and AI-powered tooling for 2,000+ engineers.
Principal Software Engineer, Backend - Sharing
Principal backend engineer leading multi-year strategy for content sharing on Roblox, designing scalable systems and mentoring senior engineers.
Principal Software Engineer - Compute (Kubernetes)
Lead the architecture and evolution of Roblox’s Kubernetes platform, optimizing control plane performance and security for millions of concurrent requests across global infrastructure.
Principal Software Engineer, Metrics Platform
Lead the architecture and long-term vision for Roblox’s petabyte-scale data infrastructure, including Kafka, Flink, Spark, and Trino, while integrating AI-driven autonomous interfaces.
Principal Frontend Software Engineer - Discovery
Principal frontend engineer building high-traffic discovery surfaces (Home, Search, Charts) in React/TypeScript that serve tens of millions of daily Roblox users across web and app.
Principal Security GRC Analyst
A Senior Security GRC Analyst at Roblox will support the company's Security Governance, Risk, and Compliance team, writing and managing security policies, assessing information security risks using frameworks like FAIR, and partnering with Engineering, Legal, and Finance to drive risk-informed decisions across the organization. The role focuses on building scalable, automated GRC processes to supp
Principal Software Engineer- Account Authentication
Build and own full-stack account authentication systems that securely verify millions of users daily across web, mobile, and consoles.
Senior/Principal Product Manager, Engine Networking
Lead the long-term vision and strategy for Roblox’s core game-engine systems, driving performance, reliability, and creator-facing analytics to improve the platform’s speed and quality for 130M+ daily users.
Principal Software Engineer, Orchestration
Principal-level technical lead for Roblox's data platform orchestration: owns Apache Airflow and its Kubernetes (EKS) infrastructure that schedules and runs 8,000+ daily DAGs, mostly Spark jobs. Day to day: set multi-year architecture, scale and harden the scheduler, build internal platform tooling, drive observability/SLAs, and mentor engineers.
Principal Security Software Engineer, IAM
Principal engineer defining identity and access systems for Roblox’s production infrastructure, including mTLS, SPIFFE/SPIRE, PKI, and AI-agent identity, while mentoring teams and driving long-term security strategy.
Principal Software Engineer, WebRTC
Principal engineer on Roblox's Audio-Video-Communication team, building a real-time communication platform from the ground up — voice chat, 3D audio, and large-scale broadcast — to serve billions of users across mobile, console, and other devices. Core stack is C++ with emphasis on distributed systems and low-level performance optimization.