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Roblox

Runs a platform where users build and play games

Senior Software Engineer - Engine Systems

Systems Software EngineeringConfirmed live in the last 24 hours
Full-timeSan Mateo, CA, USA

About the Job

Requirements

  • Five or more years of professional software engineering experience, with strong ownership of complex technical systems.
  • Strong proficiency in systems-level programming languages such as C++, C#, Objective-C, Rust, or a similar language.
  • Experience building data-driven software whose integrity can be measured and proven through each leg of the system.
  • A collaborative approach to engineering, strong communication skills, and a focus on team outcomes.

Responsibilities

  • Build and maintain systems that report detailed stability, reliability, and performance signals across Roblox clients.
  • Write well-instrumented systems-level code across supported devices, including mobile, desktop, and major console platforms.
  • Ensure internal engineers have tools and signals to detect, understand, and resolve disruptions to the user experience.
  • Design highly reliable systems that operate at Roblox's scale, where even small regressions can have significant impact.

Desired Qualifications

  • Experience building observability systems, telemetry, crash reporting, hang detection, application performance monitoring, or related diagnostic tooling.
  • Experience working cross-functionally with Data Science, Infrastructure, and similar stakeholders to guide technical decisions.
  • Multi-platform expertise involving several mobile or console ecosystems.
  • Interest in mentoring other engineers and raising the engineering quality of the broader team.
  • Experience with game engines, large client applications, or performance-critical runtime systems.

About the Company

Roblox

Runs a platform where users build and play games

Roblox runs an online platform where people play, chat, and hang out in 3D games built by its users rather than by the company itself. In 2025, Grow a Garden, a game a teenager made on Roblox, set the record for the most people playing one video game at the same time. Creators build games with Roblox Studio, a free design tool, and players join through the free Roblox app on phones, computers, game consoles, and VR headsets. Roblox makes money by selling Robux, a virtual currency players spend on avatar items and in-game extras, and it shares part of that spending with creators, who can exchange their Robux for real money. Roblox was founded in 2004 and is based in San Mateo, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Mateo, CA
Founded
2004

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