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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 - Commercial Content
Develops AI-driven full-stack solutions for Roblox’s Content Understanding Platform, processing billions of assets (3D models, audio, text, video) to enable search, moderation, and generative AI features.
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 Machine Learning Engineer, Alt Defense
Technical lead for Roblox's Alt Defense pod, architecting large-scale ML systems (graph neural networks, clustering) that detect banned bad actors returning with alternate accounts across billions of accounts, in near real time. Onsite in San Mateo, working with Python-scale ML, big data, and low-latency serving.
Principal Software Engineer, Ads User Experience
Principal software engineer building Roblox's first-of-its-kind ads system inside its C++ game engine — developing new ad formats starting with video, and designing high-performance, scalable systems that shape a new multi-billion-dollar ads business while preserving user experience and platform integrity.
Principal Client Platform Engineer
Roblox is hiring a Principal Client Platform Engineer to act as the technical architect for its global fleet of macOS, Windows, Linux, Android, iOS, and ChromeOS endpoints. Day to day they define fleet security/management strategy, automate patching, OS upgrades and certificate lifecycles, harden endpoint security with tools like CrowdStrike and Kolide, and mentor engineers.
Principal Endpoint Platform Engineer
Serves as the technical architect for Roblox's global corporate endpoint fleet (macOS, Windows, Linux, iOS, Android, ChromeOS), defining strategy for scaling, security, and automation — patching, OS upgrades, certificate lifecycles, and observability tools like CrowdStrike and Kolide. Core tech: endpoint management platforms (Jamf Pro, Intune), Python/Bash/Go/Ruby, IaC/GitOps, Okta Zero Trust, and
Principal Software Engineer - Avatar Personalization
Principal engineer on Roblox's Avatar Personalization team, building avatar creation and customization features (animation, clothing, hair, shading) directly in the Roblox game engine using C++ and Lua, with technical leadership and cross-team architectural work at scale for tens of millions of users. Onsite in San Mateo Tue-Thu.
Principal Product Manager, Subscriptions and Revenue Growth
Senior product leader at Roblox owning the end-to-end strategy and roadmap for Roblox Premium subscriptions — defining subscriber value proposition, tiering, and pricing, running growth experimentation to drive acquisition and retention, and building developer-led subscription benefits. Requires deep consumer subscription/growth PM experience, A/B testing expertise, and cross-functional influence.
Principal Software Engineer- Agentic Customer Care
Principal engineer on Roblox's Trust & Safety 'Safety Experience' team, building agentic, LLM-powered applications and chatbot solutions for customer-facing and internal safety systems at scale. The role provides technical leadership and mentoring, working with C#/Java/Python, microservices, REST/RPC, and machine learning.
Principal Software Engineer, Build Platform
Principal engineer setting the technical direction for Roblox's Build Platform — the cloud-hosted agent harness, tools/skills, and evaluation framework behind AI-powered game creation. Day-to-day spans designing distributed agent infrastructure, LLM orchestration and multi-provider model routing, sandboxed execution, evals at scale, and reliability/safety/cost systems.
Principal Software Engineer, Build
Principal engineer on Roblox's Build Surfaces team, leading end-to-end development of AI-assisted creator tools across Roblox Studio and the app — text-to-game generation, iteration, monetization, and analytics — while mentoring engineers. Primarily works in React, Luau, and occasionally C++.
Principal Software Engineer, App Performance
Principal engineer on Roblox's Consumer App Performance team, driving stability and performance across the cross-platform C++ game engine and client codebase on mobile, desktop, and console — profiling bottlenecks, mitigating crashes and hangs, and building monitoring and CI/CD guardrails to prevent regressions.
Principal Software Engineer, Engine Systems
Principal engineer on Roblox's Engine DataModel team, owning the core data structures, C++ reflection bindings behind the Luau API, and serialization that form the backbone of the Roblox engine. Day to day is high-performance systems-level C++ work that must run well across desktop, mobile, and console clients, based hybrid (3 days/week) in San Mateo, CA.
Principal Machine Learning Platform Engineer, Foundation AI
Principal engineer who owns Roblox's internal ML platform as a product — building serving layers, model registries, pipeline orchestrators, and training/inference control planes exposed via APIs, SDKs, CLIs, and UIs. Blends backend engineering, developer experience, and large-scale GPU infrastructure work.
Principal Data Scientist - Safety
Principal-level data scientist on Roblox's Content Safety team, building prevalence measurement methodologies, ground truth datasets, and causal-inference analyses to quantify and reduce harmful user-generated content across games, avatars, and in-game behaviors. Core stack includes Python/R, SQL, Hive, Spark, and Airflow, partnering with Product, Engineering, Policy, and Legal.
Principal Software Engineer - Streaming
Principal engineer on Roblox's Engine Networking team, building the real-time network transport layer that synchronizes game state across millions of players on desktop, mobile, and console clients. Core work is systems-level C++ on a user-space network stack, optimizing latency, throughput, congestion control, and OS-level performance on Linux.
Principal Software Engineer - Service Networking
Principal engineer on Roblox's Service Mesh team: sets technical direction and does hands-on development of Envoy/Istio-based service-to-service networking across Kubernetes, Nomad, and cloud environments, partnering with Security and Compute teams while mentoring senior engineers.
Principal Software Engineer, Agent Infrastructure
Principal engineer on Roblox's Agent Infra team, building the backend infrastructure that runs autonomous AI agents safely and reliably at scale for creators and internal engineers. Core work spans distributed systems design, workflow orchestration, sandboxing untrusted code, and production code in Go, Python, or Rust.