Principal Software Engineer, Ads Bidding

Company: Roblox Corporation
Location: San Mateo
Posted on: February 1, 2025

Job Description:

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 Roblox, we're building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We're on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.A career at Roblox means you'll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.We are seeking Senior and Principal Software Engineers to join our Ads team and create innovative bidding algorithms and systems that improve advertiser ROI. In this role, you will optimize budget usage across diverse advertising objectives, design auctions that foster fair competition in the marketplace, develop sophisticated bidding models to balance user engagement, advertiser value, and creator monetization.Roblox Ads is one of the company's newest and fastest-growing teams, dedicated to revolutionizing advertising in the immersive metaverse. We strive to establish Roblox as the leading platform for immersive advertising, delivering ground-breaking experiences that benefit advertisers, creators, and users alike.You Will:

• Build innovative ads bidding systems and apply algorithms and machine learning to maximize advertiser ROI, supporting a wide range of advertising objectives.
• Develop critical product features like auto-bidding, budget pacing, traffic forecasting, real-time auctions, and more.
• Partner with cross-functional teams to define roadmaps, set priorities, and deliver high-impact projects that shape the future of Roblox advertising.
• Evolve our Ads platform architecture to fit seamlessly within the metaverse, supporting both current and future advertising initiatives.
• Mentor and guide engineers, contribute to an elite engineering culture, and drive the team toward innovation and results.You Have:
  • BS, MS, or Ph.D. in Computer Science, Engineering, or equivalent experience.
  • 5+ years in software development, with at least 3 years focused on ads auctions, bidding, or marketplace design.
  • Shown success building and scaling ad bidding systems, with proficiency in large-scale data processing, real-time auctions, and performance-driven bidding strategies (e.g. oCPM, CPA).
  • Demonstrated ability to lead and mentor teams, fostering a respectful, high-impact engineering culture.
  • A creative, strategic attitude for navigating complex technical and organizational challenges, working closely with Product to ensure clarity and alignment.For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits.Annual Salary Range: $273,070 - $338,270 USDRoles that are based in our San Mateo, CA Headquarters are in-office Tuesday, Wednesday, and Thursday, with optional in-office on Monday and Friday (unless otherwise noted).You'll Love:
    • Excellent medical, dental, and vision coverage
    • A rewarding 401k program
    • Flexible vacation policy (varies by exemption status)
    • Roflex - Flexible and supportive work policy
    • At Roblox HQ:
    • Free catered lunches five times a week and several fully stocked kitchens with unlimited snacks
    • Onsite fitness center and fitness program credit
    • Annual CalTrain Go PassRoblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations for all candidates during the interview process.
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Keywords: Roblox Corporation, San Jose , Principal Software Engineer, Ads Bidding, IT / Software / Systems , San Mateo, California