Principal Software Engineer - Voice

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.

The Engine Voice Communications team enables frictionless, safe and civil communications across Roblox. This team launched Spatial Voice Chat on the Roblox platform, which has been adopted by tens of thousands of Roblox developers and millions of users. As a Principal WebRTC engineer, you will architect and implement critical parts of our voice chat and video chat infrastructure to facilitate meaningful interactions for a billion users.

You will:

• Develop voice and video infrastructure that scale to a billion users
• Enhance upstream WebRTC where required and integrate with Roblox infrastructure
• Build clear APIs to manage video communication and streaming infrastructure
• Lead design and architecture discussions and mentor junior engineers
• Collaborate with product leaders to build compelling voice and video enabled experiences that can be easily integrated by Roblox developers

You have:

• 5+ years of experience with compiled languages such as C#, Go, Java, C++, or others
• 2+ years of experience building and operating voice and video infrastructure at scale
• A deep knowledge of WebRTC technologies (TURN, STUN, ICE, audio/video codecs)
• An understanding of and experience with many-to-many real-time low-latency media conferencing topologies and components such as SFUs.
• Experience with network protocols (HTTP, TCP/UDP, Websockets)
• Experience with media protocols such as RTMP, HLS, DASH, etc
• Bachelor's degree (or equivalent professional experience) in Computer Science or related engineering field with at least 5 years of hands-on experience
• Strong communication skills (spoken and written)

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$283,780—$331,640 USD

Roles 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:

• Industry-leading compensation package
• Excellent medical, dental, and vision coverage
• A rewarding 401k program
• Flexible vacation policy (varies by exemption status)
• Roflex - Flexible and supportive work policy
• Roblox Admin badge for your avatar

• 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 Pass

Roblox 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.