Jobs in the United States

25+ jobs

Save this search

Added just now
Oliver Wyman - Senior Lead AI Engineer
Oliver Wyman, LLC
NY · WA
…unprecedented products across industries. As a Senior Lead AI Engineer, you are primarily responsible for managing technical projects and helping teams design and build AI/ML systems and…
Added 2 mins ago
Storage Engineer (TS/SCI)
Vantor Services Inc.
Herndon, VA
Vantor is seeking a Storage Engineer to support the development and integration of intelligence capabilities into test and operational environments. The successful candidate will design,…
Added 2 mins ago
T
DevOps Engineer
TEKsystems
Madison, WI
- $140,000 to $170,000 USD / year
…This person is responsible for automating systems, maintaining infrastructure, and optimizing software development practices.POSITION DUTIES/RESPONSIBILITIES:I. Deploy and maintain critical…
Added 2 mins ago
T
Linux Infrastructure Engineer
TEKsystems
Irving, TX
- $60 to $75 USD / hour
…communications solutions and specialize in mission critical infrastructure. They have a large presence internationally, and are continuing to expand and grow their North American presence.…
Added 2 mins ago
Systems Engineer
THUNDER VALLEY CASINO
Lincoln, CA
The Systems Engineer will perform technical and skilled duties in the operation of enterprise, client/server, and desktop computer systems and networks. Included are multiple online network…
Added 4 mins ago
Staff Facilities Electrical Engineer
STERIS Corporation
Sanford, NC
The Staff Plant Electrical & Controls Engineer serves as a senior technical leader and subject matter expert for plant electrical, controls, automation, and electrical reliability systems…
Added 6 mins ago
Staff Software Engineer - IAM
General Motors
Montpelier, VT
We’re looking for a Security Software Engineer to join the Security Products Engineering team and drive the design and implementation of security-focused software and services across GM.…
Added 6 mins ago
Senior Software Engineer, Stablecoins
Coinbase
Montpelier, VT
As a Senior Software Engineer on the Stablecoin team within the Developer group, you'll help build and scale Coinbase Custom Stablecoins (CCS), the platform that lets partners launch their…
Added 6 mins ago
Software Engineer, Systems ML
Meta
Montpelier, VT
Meta is seeking a Software Engineer to join our Systems ML Engineering team, focused on building and optimizing the machine learning infrastructure that powers Meta's products at massive…
Added 6 mins ago
AT
Senior II Site Reliability Engineer
Akamai Technologies, Inc.
Montpelier, VT
- $146,400 to $263,600 USD / year
Our team designs, develops, and manages applications and infrastructure that support Akamai's Compute products and services. We do this while maintaining Akamai's mission at the forefront…
Added 6 mins ago
AT
Site Reliability Engineer II
Akamai Technologies, Inc.
Montpelier, VT
- $95,000 to $171,000 USD / year
Are you passionate about software-defined networking, secure connectivity, and making large-scale cloud infrastructure safe to change?
Added 6 mins ago
AT
Senior II Site Reliability Engineer
Akamai Technologies, Inc.
Montpelier, VT
- $146,400 to $263,600 USD / year
Our team designs, develops, and manages applications and infrastructure that support Akamai's Compute products and services. We do this while maintaining Akamai's mission at the forefront…
Added 6 mins ago
Solutions Architect - Nutanix Database Service
Nutanix
Montpelier, VT
Experience: 5+ years of experience in a customer-facing pre-sales technical role (Solutions Architect, Systems Engineer, or Database Specialist Architect) within an enterprise software,…
Added 6 mins ago
Cybersecurity Engineer (Cloud)
Amentum
Montpelier, VT
Configure and test security policies, infrastructure-as-code controls, deployment automation, and supporting integrations in coordination with cloud platform and application owners.
Added 6 mins ago
Senior Cybersecurity Architect (Cloud)
Amentum
Montpelier, VT
Build and maintain reusable infrastructure-as-code components and deployment automation for security policies, controls, and platform onboarding.
Added 6 mins ago
Senior Data Engineer
Highmark Health
Montpelier, VT
…design, development, and maintenance of the organization's data infrastructure, ensuring the efficient and reliable flow of data across various systems. This position is responsible for…
Added 8 mins ago
Senior Network Automation & Platform Engineer
Kaiser Permanente
Greensboro, NC
This senior-level IT Engineering role supports the Network Infrastructure Engineering organization and its mission to deliver reliable, scalable, secure, and efficient enterprise…
Added 8 mins ago
NN
Director of Environmental Services & Compliance
NW Natural
Portland, OR
- $170,100 to $251,550 USD / year
…guidance on environmental matters affecting utility operations, infrastructure development, construction activities, water and wastewater systems, air quality programs, environmental…
Added 8 mins ago
Senior Manufacturing Engineer – Photonics Manufacturing & NPI
PsiQuantum
Milpitas, CA
…integrate with existing cryogenic cooling and standard fiber-optic…
Added 9 mins ago
Product Design Electrical Engineer, Data Center Engineering - Electrical Products and Services (DCE-EPS)
Amazon Data Services, Inc.
Austin, TX · Seattle, WA · Atlanta, GA · Columbus, OH · Herndon, VA · Chicago, IL
Amazon Web Services is hiring a Product Design Electrical Engineer for our Electrical Products and Services (EPS) team. EPS is a global engineering team within AWS Data Center Engineering,…
Added 9 mins ago
Staff Software Engineer, Data Governance & Trust
PlayStation Global
San Mateo, CA
Sony Interactive Entertainment is seeking a Staff Software Engineer to help shape and deliver the technical foundation for Data Governance and Trust across our data and AI ecosystem.
Added 9 mins ago
Senior / Lead Site Reliability Engineer
Zelis
Morristown, NJ · St. Petersburg, FL · Atlanta, GA · Boston, MA · Creve Coeur, MO
Zelis is seeking a highly skilled and experienced Senior / Lead Site Reliability Engineer (SRE) to join our Site Reliability Engineering team.
Added 9 mins ago
Senior Software Engineer
Zelis
Morristown, NJ · St. Petersburg, FL · Atlanta, GA · Boston, MA · Creve Coeur, MO
Senior Software Engineer – Expert Claim Review
Added 10 mins ago
TT
Founding Senior Engineer
True Talent Solutions Partners
New York, NY
- $175,000 to $225,000 USD / year
Join an early-stage AI company building an intelligent growth platform for consumer brands. As a founding-level engineer, you will ship product hands-on, shape the technical foundation, and…
Added 10 mins ago
TT
Robotics Software Engineer
True Talent Solutions Partners
Watertown, MA
- $130,000 to $180,000 USD / year
…real-world robotic performance, from hardware-level systems to cloud…

Roblox

Principal Machine Learning Engineer - Matchmaking

San Mateo, CA, United States

$295,250 - $345,040 USD

Apply About employer

Applications open in a new tab.

Job details

Pay: $295,250 - $345,040 USD
Experience: 8+ years of experience and a consistent record of delivering and improving large-scale ML systems for ranking, recommendation, personalization, or resource allocation.
Posting language: English
Posted: Nov 3, 2026

Original 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.

Matchmaking is a critical stage downstream of Discovery and Search. Once a player chooses a game to play, matchmaking assigns them to a server for that game. That decision shapes who they play with, the network latency they experience, and the quality of their session. By matching players to servers that fit their needs and each developer’s game, matchmaking helps turn discovery into satisfying play, repeat visits, and long-term engagement, making it a direct lever for Roblox’s growth.

As a Principal ML Engineer on Matchmaking, you’ll own the technical vision and execution for the models, objective functions, and algorithms that make those decisions. You’ll combine predictions of high-value player actions with optimization of player and developer utility and system efficiency, serving millions of players across hundreds of thousands of servers in global datacenters.

You Will:

Own the technical direction and ML strategy for matchmaking, connecting the Discovery and Search journey to server placements that improve player experience, developer success, and Roblox growth.
Define and evolve the matchmaking objective function to balance player and developer utility with system efficiency. Make tradeoffs among co-player compatibility, network and join latency, engagement, retention, server utilization, and compute cost explicit and measurable.
Build models that predict high-value actions and longer-term outcomes for each player–server match, including co-play, chat engagement, sustained play, and return visits, using player history, game characteristics, and live server state.
Design and productionize candidate-server retrieval, ranking, and assignment algorithms that optimize this objective under real-time latency, capacity, and reliability constraints, accounting for both the joining player and players already in the server.
Lead other engineers by example and through technical direction as an individual contributor, mentor engineers, and create an engineering culture of excellence.
Build and evolve the data, feature, training, serving, and evaluation systems that support matchmaking ML, ensuring fresh signals, reliable predictions, and consistency between training and serving.
Partner with Discovery, Search, developer-facing product teams, modelers, and data and AI infrastructure engineers to co-design models and systems that adapt to each game’s needs and deliver value across the player journey.
Define offline evaluation and lead online experiments to measure the impact of matchmaking decisions on player engagement and retention, developer success, and system efficiency, using the results to improve models and objectives.
Translate research into iterative production improvements, collaborate with the wider ML community where applicable, and represent Roblox’s technical work.

You Have:

8+ years of experience and a consistent record of delivering and improving large-scale ML systems for ranking, recommendation, personalization, or resource allocation.
Experience defining objective functions, building predictive models, and deploying optimization algorithms that balance user and business outcomes with production latency, reliability, and resource constraints.
The capability of breaking down long-term product requirements into iterative deliverable stages.
Initiated and facilitated challenging technical decisions across multiple teams and organizations. You are empathetic and find common understanding.
Deep technical expertise, you always start with the needs of the user, whether they are Roblox users or internal engineers.
A generalist approach and you have mastered several languages and technologies already; you can easily adapt to any situation.
The ability to roll up your sleeves to tackle data problems or machine learning problems when they come up.
A creative and strategic approach to solving hard problems. You simplify the complex. You bring in fresh ideas from new places.
BS in Computer Science or a related discipline, MS/PhD are a definite plus.

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.

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.

Apply About employer

More about this job

Skills

Machine learning
ML
Grading systems
Research
Build predictive models
Product comprehension
Computer science

Report this job