Senior Software Engineer, Core Services

Sorry, this job was removed at 12:14 a.m. (CST) on Friday, Sep 19, 2025
Be an Early Applicant
San Mateo, CA
Hybrid
193K-239K Annually
Computer Vision • Gaming • Software • Virtual Reality • Web3 • Metaverse
Immersive gaming and creation platform
The Role

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.

The Core Services team manages the core infrastructure and API stack and builds high throughput microservices that powers https://www.roblox.com. These services need to be fast, reliable and highly scalable as they have a huge impact on the day-to-day experience of every Roblox user. In addition, the team owns shared libraries, infrastructure microservices, and the web infrastructure used by all other Roblox full-stack feature teams. We ship with testable and configurable features that allow for rapid experimentation, data collection, and optimize for performance and user engagement. From serving basic user information to populating content into in-experience. Core Services is integral to the Roblox experience.

As a Senior Engineer within the team, you will own and drive the development and management of core infrastructure, API stack, and microservices. These components are essential for supporting a range of services and platforms within Roblox, including our studio environment. Additionally, you will contribute to the development of tooling and frameworks for full-stack teams. You will get the chance to take ownership of high RPS (requests per second) services, contribute to the re-architecture of systems to accommodate our company's growth, and collaborate with a diverse set of teams including Infra and the product teams within Roblox, leading initiatives, and making a significant impact across the company.
Here are a few quick highlights of how we power Roblox:
  • Microservices - we manage 50+ microservices, the most of any Roblox full-stack engineering team. These services are crucial to run Roblox. They sit right at the heart of the connection between product and infrastructure.
  • API Scale - we run services that hit 500K - 5M RPS, the highest load of any Roblox full-stack engineering team. Scalability and reliability of these services is important to keep the product alive.
  • Thumbnails - our system generates and delivers 6+ million thumbnails per second. Perfect for viewing all your avatar clothing options!
  • Roblox website - managing the production infra behind running the website while re-architecting it is a real interesting architectural challenge. If you're interested in changing the airplane's engine while it's flying, you'll like this challenge.
You will:
  • Report into the Core Services Organization.
  • Build, maintain, and scale systems to support our goal of 1 billion active users
  • Design backend features for https://www.roblox.com and mobile apps on iOS, Android, and Amazon platforms.
  • Collaboratively build new microservices using Docker, .NET Core, and container orchestration.
  • Build and establish core infrastructure accessible to all Roblox teams.
  • Enforce high code quality standards, architectural designs, and long-term approaches as a gatekeeper
You have:
  • Experience in C#, Java, Go or any other object-oriented programming language
  • 4+ Years of experience building web applications in frameworks such as ASP.NET, SpringMVC, Express, Rails, or Flask.
  • Experience designing high traffic REST APIs, using Containers and microservices
  • Experience building large scale distributed systems with focus on scalability, reliability, and availability
  • Experience in debugging, mitigating, and root causing problems in the production environment in a timely and systematic manner.
  • Experience leading cross team greenfield projects.
  • Bachelor’s degree in Computer Science or a related field, or equivalent experience.

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.

Similar Jobs

General Motors Logo General Motors

Senior Software Engineer

Automotive • Big Data • Information Technology • Robotics • Software • Transportation • Manufacturing
Hybrid
2 Locations
165000 Employees
134K-236K Annually
Hybrid
2 Locations
130 Employees
150K-180K Annually

ServiceNow Logo ServiceNow

Accounting Manager

Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
Remote or Hybrid
Santa Clara, CA, USA
28000 Employees
125K-218K Annually

ServiceNow Logo ServiceNow

Sales Executive

Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
Remote or Hybrid
Santa Clara, CA, USA
28000 Employees
123K-203K Annually
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: San Mateo, CA
2,500 Employees
Year Founded: 2004

What We Do

Roblox is an immersive gaming and creation platform that offers people millions of ways to be together, inviting its community to explore, create and share endless unique experiences. Our vision is to reimagine the way people come together — in a world that's safe, civil, and optimistic. To achieve this vision, we are building an innovative company that, together with the Roblox community, has the ability to strengthen our social fabric and support economic growth for people around the world.

Why Work With Us

Every day, Roblox employees tackle complex questions and drive incredible innovation. Join us in building the future of human connection and communication.

Gallery

Gallery

Similar Companies Hiring

Scotch Thumbnail
Software • Retail • Payments • Fintech • eCommerce • Artificial Intelligence • Analytics
US
25 Employees
Milestone Systems Thumbnail
Software • Security • Other • Big Data Analytics • Artificial Intelligence • Analytics
Lake Oswego, OR
1500 Employees
Fairly Even Thumbnail
Software • Sales • Robotics • Other • Hospitality • Hardware
New York, NY

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account