Senior Software Engineer - Ads Measurement

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect in 3D immersive digital experiences. Roblox's mission is to connect a billion people with optimism and civility, re-imagining how people come together across any device, anywhere in the world.

As a Senior Software Engineer on the Ads Measurement team, you will architect and build foundational advertising systems capable of serving Roblox’s massive global scale. Reporting to the Senior Engineering Manager, you will drive performance optimizations across ad serving infrastructure, build sophisticated attribution models, design identity matching solutions, and develop integrations with 3rd-party measurement partners (covering viewability, brand safety, audience reach, and verification). Collaborating cross-functionally across Machine Learning, Backend, and Analytics pods, you will pioneer privacy-enhancing ad technologies and redefine how global brands connect with immersive metaverse audiences.

Key Responsibilities

• High-Scale Ads Infrastructure: Architect, build, and optimize backend microservices capable of processing billions of ad events, transactions, and real-time serving requests.
• Attribution & Identity Systems: Design and deploy multi-touch attribution models and privacy-compliant identity matching systems to provide enterprise advertisers with holistic campaign analytics.
• 3rd-Party Measurement Integrations: Develop robust integrations with third-party verification and measurement partners to deliver validated reporting on ad viewability, brand safety, and audience verification.
• Audience Segmentation Engine: Build and optimize high-throughput audience management systems (demographic, behavioral, interest-based, and lookalike modeling) to enable precise advertiser targeting.
• Cross-Functional ML Alignment: Partner closely with Machine Learning, Data Science, and Analytics teams to ensure data pipelines provide correct, low-latency inputs for real-time model inference.
• Technical Leadership & Mentorship: Act as a technical lead across the team—driving architectural decisions, fostering engineering excellence, and mentoring junior software engineers throughout project lifecycles.

Requirements

Software & Ads Engineering Technical Depth

• 3+ years of professional software development experience shipping complex, production-grade systems.
• Systems Programming Proficiency: Mastery in one or more systems languages: Go, Java, C++, C#, Rust, or Python.
• Distributed Microservices Architecture: Hands-on experience with REST APIs, gRPC protocols, containerized service meshes, and distributed microservices design.
• Data Streaming & Storage Infrastructure: Demonstrated experience working with high-throughput event processing and storage engines (Apache Kafka, Apache Flink, Redis, and distributed SQL/NoSQL databases).
• Technical Ownership: Track record of self-organizing and taking full end-to-end technical ownership of projects from initial RFC design to production operation.

Preferred Qualifications

• Direct domain experience building high-concurrency ad tech platforms (demand-side platforms, supply-side platforms, ad servers, or attribution engines).
• Practical experience with privacy-enhancing technologies (PETs) and clean-room analytics architectures.

Total Rewards & Benefits

• Compensation & Equity: San Francisco Bay Area base salary range ($196,750 – $243,290 USD) + competitive Roblox equity grants.
• Healthcare & Wellbeing: Comprehensive health, dental, and vision insurance packages for employees and dependents.
• Onsite Perks & Culture: Modern San Mateo headquarters equipped with catered dining, collaborative spaces, and team events.
• Time Off & Retirement: Generous vacation allowances, company holidays, paid parental leave, and 401(k) matching programs.