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.

As a Principal Software Engineer on the Performance & Optimizationpod in Studio, you will lead the architecture, design, and development of simulation, profiling, and debugging tools in Roblox Studio. Your work will help creators understand how their experiences perform across the full spectrum of devices, from high-end PCs to mobile, and give them the confidence to ship quality content at the speed of their imagination.

You will:

• Plan and deliver complex technical features E2E in our game engine and Studio UI that help creators understand and optimize their experiences

• Work cross-functionally across teams and technology platforms to deliver consistent, high-quality tooling

• Lead by example and mentor engineers on technological best practices, patterns, and strategies

• Improve product quality by fostering automation testing and reliable systems

• Participate in building the world's best professional application for massively multiplayer game development

You Have:

• 9+ years of professional experience developing complex, performance-sensitive software using modern C++ (C++11 and later)

• Hands-on experience with multi-threaded programming and a strong understanding of concurrency, race conditions, and synchronization primitives

• Experience delivering end-to-end on features that span multiple teams and technology platforms

• A Bachelor's degree in Computer Science or a similar technical field, or equivalent practical experience

You are:

• Experienced: Deep expertise with large-scale C++ systems and performance-critical code

• Hands-on: Ability to deliver end-to-end and bring features from vision to shipped product

• Collaborative: Excellent communication skills with the ability to work across team boundaries

• Organized: Able to track multiple concurrent workstreams to their appropriate resolution

• Curious: Passionate about developer experience and making complex systems understandable

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 as described on this page.

Annual Salary Range**$295,250—$345,040 USD**
Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

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 to candidates with qualifying disabilities or religious beliefs during the recruiting process.