Skip to main content


Senior Software Engineer, RTC Core

at Roblox

San Mateo, CA

Application Jobs All Jobs
Roblox is ushering in the next generation of entertainment, allowing people to imagine, create, and play together in immersive, user-generated worlds. We’re the one and only fastest-growing entertainment platform that lets anyone teach themselves how to code, publish, and monetize any experience imaginable—across any device—reaching millions of players across the globe. 

The impact that you can have at Roblox is powerful. We’re looking for someone who’s eager to take on a meaningful role in the success of Roblox on a massive scale. Someone who takes play seriously, but also isn’t afraid to have some fun either. Someone who’s ready to take Roblox—and their career—to the next level.
In 2018, we were honored to be recognized as a Certified Great Place to Work®. We’ve fostered a company culture that empowers people to do the most defining work of their career in an environment that’s made up of the most passionate, team-oriented, visionary, crazy-smart people you’ll ever meet. Join the Roblox team where play rules and the possibilities are endless.
Work with the most passionate, team-oriented, visionary, and crazy-smart people you’ll ever meet. The engineers at Roblox are working on the hardest problems in tech today -- distributed systems, real time communication, 3D co-experience, massive data processing, social networking, rendering, physics, and more.  As a Roblox engineer, you will have real ownership and impact across one or more of these domains.  

As a Senior Software Engineer, RTC Core, you’ll be in charge of building our upcoming platform to bring multimodal communication experience - voice chat, 3D audio, and large scale broadcast, to our 160M+ monthly users. If you are an experienced developer with a deep understanding of real time communications, you’ll be right at home within our highly-skilled and rapidly growing social team.

You Are:

  • Experienced: You have 3+ years of experience with the webRTC C++ library (or similar technologies) with a proven track record of building client facing voice or video chat experience. Having a BS in Computer Science, MS/PhD are a definite plus. 
  • Knowledgeable:  You have a deep understanding of the client side aspects of webRTC from audio/video codecs, to networking (ICE, STUN, TURN) up to how to deal with audio mixing, bandwidth constraints, etc.  Understanding of signal processing and 3D development are definite pluses.
  • Attentive: You love to build products that are used by millions of users. You care a lot about providing the right user experience at all levels (UI/UX, audio).
  • Versatile: You’re a jack of all trades and you have mastered several languages and technologies already; you can easily adapt to any situation when the need arises and come with the right solution.
  • Creative: You take a creative and strategic approach to solving hard problems and driving new tools/functionality for our developers, with utmost quality.
  • Team-oriented:  You are able to work well as part of a team and know how to collaborate with all participants to develop the best solutions.

You Will:

    • Build the core user facing components of a new communication experience used by millions of players.
    • Help solve impossible challenges when you deal with multiple audio and video sources in a complex 3D environment.
    • Own your solution end to end and be responsible for deploying the solution at scale.
    • Collaborate with product and design to push the boundary of what is possible.

Perks & Benefits: 

  • Work with an awesome team of smart and motivated people on cool and unique projects that are used by millions of active users every day
  • Roblox Admin badge for your avatar and rockstar status with our community
  • Free catered lunches and several fully stocked kitchens with unlimited snacks
  • Robust medical, dental and vision insurance
  • Fitness reimbursement program
  • 401K program
  • Pre-tax commuter program
  • Unlimited vacation policy

Roblox – Powering Imagination.