Role Overview
Roblox is hiring a Senior Machine Learning Engineer, Reliability. This is a full-time role in San Mateo. Part of Roblox's Data Science hiring, posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.
Salary Context
Salary is not disclosed in this posting. Market median for Senior-level Data Science roles is $160k-$214k (based on 41 comparable listings). Many employers share specifics during the interview process or after an initial screen.
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Job description
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.
Why Reliability?
Roblox serves over 100 million people every day across a platform that is constantly evolving — and behind every experience is infrastructure that has to work, every time, at massive scale. The Reliability team at Roblox operates at the depth and breadth of the Roblox stack. Availability of the platform is a key company goal. We are hiring our first Senior Machine Learning engineer within our team.
As a Senior Machine Learning Engineer within Reliability, you will help set the direction for how machine learning systems/practices can be leveraged to improve the reliability of the overall Roblox platform. You will own the architectural and execution roadmap of leveraging massive data across - logs, traces, metrics, production changes, to proactively detect issues before they become real problems (MTTD) and/or reduce time to resolve incidents (MTTR). You will have the opportunity to cross functionally collaborate with other similar teams at Roblox to define best practices and software.
You will:
- Help define the roadmap for leveraging Machine Learning Engineering to improve Production Systems Reliability at Roblox.
- Improve realtime anomaly detection capabilities by leveraging various state of the art ML techniques, thereby directly contributing to improving Mean Time to Detect Production issues.
- Develop methods to build pipelines to consume various streams of data (metrics, logs, traces, change management systems etc.).
- Build a reasoning layer that interacts with the streams of data to find possible root causes of problems happening in production.
- Build time-series models to predict capacity exhaustion and seasonal traffic spikes to drive automated scaling
You have:
- Beyond off the shelf: We are looking for an expert who has knowledge of various modeling techniques, ability to to go deep and fine tune models to fit our use cases.
- Ability to propose and architect the infrastructure that allows us to implement systems that learn from user and/or automated feedback.
- Good distributed systems fundamentals and understanding of large scale high throughput systems
You are:
- Comfortable with Ambiguity: You thrive in undefined or open-ended problem spaces, providing structure, clarity, and decisive direction to your teams.
- A Pragmatic Builder: You are scrappy and impact-oriented. You view undefined data and messy systems as opportunities to build structure rather than blockers to progress.
- An Executive Communicator: Highly effective at communicating complex technical concepts to both engineering teams and non-technical executive leadership.
- Data & System Oriented: You understand that robust data and systems are the foundation of any production application, and you design infrastructure for scale, correctness, and reliability.
- Curious & Creative: You enjoy tackling hard problems, exploring new technologies, and driving continuous improvements in both systems and workflows.
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.
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.
For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.
About Roblox
Roblox
about.roblox.com
203 other open roles at Roblox on TryApplyNow.
Frequently Asked Questions
How do I apply for the Senior Machine Learning Engineer, Reliability position at Roblox?
Use the Apply button above to submit your application directly to Roblox. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior Machine Learning Engineer, Reliability position at Roblox located?
This position is based in San Mateo. Roblox has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior Machine Learning Engineer, Reliability at Roblox earn?
Roblox has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Machine Learning Engineer, Reliability role at Roblox posted?
This role was posted on July 12, 2026 (today). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Machine Learning Engineer, Reliability role at Roblox require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Roblox lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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