12,841 a16z jobs
Open roles at companies in the Andreessen Horowitz portfolio.
Senior Software Engineer - Avatar Personalization
Develops avatar personalization features in Roblox’s game engine, including animation, clothing, and customization systems, to enhance in-game character creation and fidelity for millions of users across platforms.
Senior Data Analyst- Scaled Moderation
Data Analyst driving IP enforcement and legal compliance ops at Roblox by building KPIs, dashboards, and insights to protect creators and 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.
Director of Business Development, Payments
Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At…
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.
Engineering Manager, Ads Experience
Leads Roblox's Ads Experience engineering team, owning the advertiser, brand, and creator monetization products (Ads Manager, campaign management, reporting, payouts) end to end. Manages and grows the team while providing technical direction across Go/C# backends, React/TypeScript frontends, and Gen AI features.
Principal Software Engineer
Principal engineer designing core C++ data structures and frameworks for Roblox’s game engine, ensuring high performance across all supported devices.
Engineering Manager, Enterprise Security
Principal Enterprise Security Engineer at Roblox designs and deploys corporate security architecture, IAM, endpoint and SaaS security, and zero-trust controls to protect the company’s infrastructure and enable secure operations.
Senior Software Engineer, Ads Experience (C++)
Builds and optimizes a first-of-its-kind in-game ad system in C++ for Roblox’s 3D immersive platform, focusing on video formats and scalable performance.
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.
Senior Product Manager, AI Compute Infrastructure
Own the strategy and roadmap for Roblox’s AI compute platform, turning raw GPU hosts into reliable, production-ready infrastructure that powers AI model training and inference across on-prem and cloud.
Lead Avionics Manufacturing Engineer
About Northwood: Northwood is a modern space infrastructure company bringing the benefits of space to the masses through advanced communications technology. We are building a global network of phased array ground…
Senior Machine Learning Engineer - Economy ML
Senior ML engineer on Roblox's Economy ML team builds ranking, personalization, and pricing models for the virtual economy across Marketplace, Payments, and Developer Monetization. Day-to-day: designing recommender architectures in Python/PyTorch, efficient training/serving at scale, running A/B experiments, and monitoring production models.
Senior Software Engineer, UGC Validation
Senior engineer building automated systems to validate 3D user-generated assets for Roblox’s metaverse marketplace, enforcing quality and policy via geometric processing and schema checks.
Director of Engineering – Studio Systems
Lead engineering teams to build and evolve Roblox Studio’s core systems, including scripting, debugging, and toolchain, using C++ and AI-assisted workflows.
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++.
Senior Frontend/Fullstack Software Engineer, Social Graph
The Senior Software Engineer will build and maintain full-stack social graph features to improve user connection and engagement on the Roblox platform. This role is frontend-leaning and involves collaborating with cross-functional teams to ship features used by millions of daily users.
Senior Software Engineer, Metric Platform
Build and scale Roblox’s distributed data infrastructure (Kafka, Flink, Spark, Trino, Druid) to process petabytes daily, enabling analytics, ML, and product decisions at massive scale.
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.
Senior Threat Intelligence Analyst, Safety Intelligence
A senior analyst on Roblox's Safety Intelligence team proactively hunts emerging threats across harm domains (child safety, extremism, fraud, etc.), producing multi-sourced threat assessments and briefings. They partner with Data Science, Engineering, and Moderation to turn findings into detections, using SQL, Python, and OSINT methods.