Senior Software Engineer, Ads Platform

About the role

As a Senior Software Engineer on our Ads Platform team, you will architect and build foundational ads systems capable of reliably serving Roblox’s massive scale. You will drive performance improvements to our ads serving and delivery infrastructure while expanding our systems to support a variety of new and immersive ads experiences. Your scope will span across multiple teams and require close collaboration with engineers across ML, backend, and analytics to shape the future of ads infrastructure at Roblox.

This role is a great fit if you are proficient in managing large-scale systems and data-driven applications and have a zeal for developing inspiring, easily maintainable, and reusable code. This position will report to our Senior Engineering Manager and require you to work onsite at our HQ in San Mateo, CA Tuesdays to Thursdays.

Responsibilities

• Build and ship best-in-class Ads products used by hundreds of millions of users.
• Develop backend services that scale to billions of products and transactions.
• Be a tech lead and mentor junior engineers.
• Self-organize and take ownership of projects throughout their full lifecycle.

Requirements

• 5+ years of experience in software development and shipping complex products to production.
• Proficiency in one or more systems programming languages such as C#, Go, Rust, Java, C++, or Python.
• Knowledge of REST, gRPC, distributed systems design, scalable containerized systems, and microservices.
• Experience with technologies like Kafka, Flink, Redis, and distributed SQL/NoSQL databases.
• Bonus: Experience working in ads systems.

Skills

• A Technical Leader: You have initiated and facilitated challenging technical solutions. Your technical expertise influences product direction. You nurture a culture of technical excellence.
• Data & System Oriented: You understand that robust data is the foundation of great ML systems, and you design infrastructure for scale, correctness, and reliability.
• Collaborative: You thrive in cross-functional teams, partnering effectively with ML, backend, and product engineers to solve complex challenges.
• Curious & Creative: You enjoy tackling hard problems, exploring new technologies, and driving continuous improvements in both systems and workflows.
• Impact Driven: You focus on outcomes—prioritizing product impact, reliability, and measurable success over code volume or complexity.

Pay

Annual Salary Range: $196,750—$243,290 USD

Schedule

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday.

Benefits

All full-time employees are eligible for equity compensation and benefits as described on this page.