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# Principal Software Engineer

- **Company:** Roblox
- **Location:** San Mateo, CA, United States
- **Experience:** Expert
- **Salary:** $295,250.0 - $345,040.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), C++ (Programming Language), Computer Programming, Concurrent Computing, Software Design Patterns, Distributed Systems, Memory Management, Performance Tuning, Programming Environments, Scripting, Roblox
- **Published:** July 28, 2026
- **Apply:** https://careers.roblox.com/jobs/8036680?gh_jid=8036680

## About the Role

* Over 8+ years of experience developing and deploying user-facing software products.
 * Successfully deployed a high-quality, multi-service distributed system at scale with low costs.
 * Familiarity with the challenges of working at scale and on constrained platforms like consoles or mobile devices.
 * Experience in performance optimization (working in Kernel, Assembly, C, and memory management).
 * Proficiency in C++ and an understanding of parallel/concurrent programming concepts
 * A grasp of industry standards, best practices, and design patterns
 * Approached problems from multiple perspectives, weighing the advantages and drawbacks of different solutions

You Are:

 * Enthusiastic about crafting software programming environments for game developers, eager to apply insights from multiple programming ecosystems to our scripting environment
 * Able to navigate complex codebases
 * Developing systems that are not just effective but also resilient over time
 * Inquisitive, constantly learning and keeping abreast of the latest trends in scripting languages and programming environments

## Description

As a Principal Software Engineer, Audio-Video-Communication team, you'll be in charge of building our upcoming platform to bring multi-modal communication experience - voice chat, 3D audio, and large-scale broadcast, to our users. If you enjoy working on C++ software while building products for the passionate community of Roblox, you'll be right at home within our experienced and growing social team. You will work with our Engineering Managers and Directors within our Engine's team, and will report to our Manager of the Real-Time Communications team.

You Will:

 * Build and launch the latest real-time communication platform from the ground up, designed to support billions of users.
 * Employ best programming practices to write code that is efficient, maintainable, and scalable.
 * Play a crucial role in the introduction of high-quality communication features/products on a wide range of devices, from mobile to high-end platforms.
 * Enhance the robustness and performance of existing components
 * Collaborate with engineers across engine and partner teams to create synergistic solutions


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