Jobs for Developers

Principal Languages Software Engineer

RobloxFull-time$331k - $383kSan Mateo, CaliforniaMar 15, 2024

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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 Roblox game engine team, you will work with us on software ecosystem development of the embedded scripting languages in the Roblox engine while reporting to the Engineering Director. To make tomorrow's top games, developers on the Roblox platform need more than just a scripting environment that works–they need advanced programming interfaces, efficient set of script libraries, comprehensive sets of development tools, and an ultra-fast, multithreaded runtime. Join our team and help guide the development of a new set of programming interfaces and advanced tooling features that will be used by millions of developers daily. You will be part of our Game Engine Programmability team.

You Will:

  • Help our team with designing and developing creator programming models to allow scripts to grow better across multiple CPU cores and even multiple computer systems.
  • Work to increase confidence in our designs needed to create prototypes to exercise our designs on realistic use cases and assess if they are fit for purpose and whether or not performance metrics for the solutions meet our goals
  • Oversee new feature development from research and prototyping to maintenance
  • Improve robustness and performances of existing components
  • Collaborate with engineers on our various engine and partner teams

You Have:

  • 10+ years of experience in developing and deploying use facing software products
  • Bachelor's or Master's degree in Computer Science
  • Proficient skills in C++ programming and familiar with parallel/concurrent programming concepts
  • Good hands-on experience developing APIs and tools, Game development, distributed systems and Lua/Luau programming knowledge (bonus)
  • Proficiency in industry standards, best practices and design patterns
  • Experience approaching a problem from different angles, analyzing pros and cons of different solutions

You Are:

  • Passionate about developing software programming environment for other game developers: You're excited about bringing the concepts learned from other gaming or general software development environments to this new and exciting scripting ecosystem
  • Self-motivated: You're experienced in working with complex codebases with minimal oversight
  • Responsible: You build systems that work and keep on working reliably
  • Curious: You want to learn. You stay informed about the latest developments in scripting languages and programming environments
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.
Annual Salary Range
$331,640$383,910 USD

Roles that are based in our San Mateo, CA Headquarters are in-office Tuesday, Wednesday, and Thursday, with optional in-office on Monday and Friday (unless otherwise noted).

You’ll Love: 

  • Industry-leading compensation package
  • Excellent medical, dental, and vision coverage
  • A rewarding 401k program
  • Flexible vacation policy
  • Roflex - Flexible and supportive work policy 
  • Roblox Admin badge for your avatar
  • At Roblox HQ: 
    • Free catered lunches five times a week and several fully stocked kitchens with unlimited snacks
    • Onsite fitness center and fitness program credit
    • Annual CalTrain Go Pass

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. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.


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