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Senior Software Engineer Engine Harmony (C++)

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 Senior Software Engineer on our Systems team, you will have an immediate impact on the building blocks of Roblox itself. The software you build is a very large application that empowers our global community of 2M+ developers to push the boundaries of interactive gaming. Your work will touch every part of the engine, from threading and memory management to physics and scripting. If you enjoy working on C++ software and have a passion for working on high-performance real-time applications alongside experienced and passionate engineers, you will be right at home on our growing Game Engine team.

You Will:

  • Develop engine code in C++ for sub-systems critical to the Roblox game engine
  • Work on sub-systems to harmonize resource usage to ensure gameplay works on various devices with varying CPU, memory and bandwidth capabilities
  • Work on optimization techniques to improve player engagement 
  • Work on every application Roblox develops, from mobile phone clients to cloud-based servers

You have:

  • 4+ years of experience and you've worked on deep and challenging problems in large and complex C++ codebases.
  • System-level pointers, templates, and raw blocks of memory are tools to write code, not your enemies
  • Experience developing and shipping machine learning models is a strong plus.
  • Experience working in the guts of game engine or passion for learning it
  • Built systems that work and keep on working reliably
  • A curiosity to want to learn and stay up-to-date on technology development

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
$192,890$238,520 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 for all candidates during the interview process.

Average salary estimate

$215705 / YEARLY (est.)
min
max
$192890K
$238520K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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Roblox's mission is connect a billion people with optimism and civility. Our vision is to reimagine the way people come together.

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CULTURE VALUES
Inclusive & Diverse
Rise from Within
Mission Driven
Diversity of Opinions
Work/Life Harmony
Feedback Forward
Growth & Learning
Fast-Paced
Collaboration over Competition
Transparent & Candid
Casual Dress Code
Empathetic
BENEFITS & PERKS
Medical Insurance
Paid Time-Off
Maternity Leave
Donation Matching
Vision Insurance
Summer Fridays
401K Matching
Work Visa Sponsorship
Paid Volunteer Time
Equity
Mental Health Resources
Family Medical Leave
FUNDING
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
EMPLOYMENT TYPE
Full-time, hybrid
DATE POSTED
August 30, 2025
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