Software Engineer, Networking

OpenAI
San Francisco, CA

About the Team

The Platform Networking team is responsible for the collective communication stack used in our largest training jobs. Using a combination of C++ and CUDA we work on novel collective communication techniques that enable efficient training of our flagship models on our largest custom built supercomputers.

The models we train are key ingredients to the AI research progress at OpenAI and the field as a whole, and we continually incorporate learnings from our entire research org into our training platform.

About the Role

As a Software Engineer, Networking you will design and implement custom networking collectives that are tightly integrated into our training stack.

We’re looking for people who have a background in low level performance critical software. Experience with collective communication is a bonus.

This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.

In this role, you will:

  • Collaborate closely with ML researchers to design and implement efficient collective operations in C++ and CUDA.

  • Ensure that our largest training jobs take full advantage of the different network transports used in our supercomputers.

  • Work on simulations to inform our future supercomputer network designs.

You might thrive in this role if you:

  • Have written distributed algorithms using RDMA in the past.

  • Are comfortable writing low level performance sensitive CPU and/or GPU code.

  • Are familiar with network simulation techniques.

About OpenAI

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.

We are an equal opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or any other legally protected status.

For US Based Candidates: Pursuant to the San Francisco Fair Chance Ordinance, we will consider qualified applicants with arrest and conviction records.

We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link .

At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

Posted 2026-02-13

Recommended Jobs

Embedded Software Engineer, Powertrain

Joby Aviation
California

Imagine a piloted air taxi that takes off vertically, then quietly carries you and your fellow passengers over the congested city streets below, enabling you to spend more time with the people and pla…

View Details
Posted 2026-01-24

Human Resources Associate

Menlo School
Atherton, CA

Description Menlo School is seeking a Human Resources Associate to support a broad range of HR functions, with a focus on recruitment, onboarding, performance management, leave administration, trai…

View Details
Posted 2026-01-29

Principal Engineer, AI Model LifeCycle

Crusoe
San Francisco, CA

Crusoe's mission is to accelerate the abundance of energy and intelligence. We’re crafting the engine that powers a world where people can create ambitiously with AI — without sacrificing scale, spee…

View Details
Posted 2026-02-13

Strategic Sourcing and Procurement Manager

Bright Machines
San Francisco, CA

RETHINK MANUFACTURING   The only way to ignite change is to build the best team. At Bright Machines®, we’re innovators and experts in our craft who have joined together to create a new category of …

View Details
Posted 2026-02-10

Senior Product Manager - Consumer Payments

Paypal
San Jose, CA

Uses data to build insights on product requirements consistent with the shared vision for the product. Gathers insights from the customer experience and customer needs to input to product requirements…

View Details
Posted 2026-02-04

Software Engineer, Backend

Match Group
Palo Alto, CA

Our Mission Launched in 2012, Tinder® revolutionized how people meet, growing from 1 match to one billion matches in just two years. This rapid growth demonstrates its ability to fulfill a fundament…

View Details
Posted 2026-02-13

Associate Software Engineer in Test

Veeva Systems
Pleasanton, CA

Veeva Systems is a mission-driven organization and pioneer in industry cloud, helping life sciences companies bring therapies to patients faster. As one of the fastest-growing SaaS companies in histo…

View Details
Posted 2025-10-19

Senior DevOps Engineer

Payzen
San Francisco, CA

About PayZen PayZen is on a mission to bring financial health to healthcare. Our products improve both access and affordability for patients and cash flow & administrative complexity for medical pro…

View Details
Posted 2026-02-13

Accounts Payable (Construction)

MIK Construction Inc.
Artesia, CA

Responsibilities Customer and Vendor invoice entry on QuickBooks Reconcile vendor statements and resolve discrepancies or payment issues Maintain accurate job costing records and code invoic…

View Details
Posted 2026-01-27

C# / .NET Software Engineer II - ArcGIS Online

Esri
Redlands, CA

Overview We welcome you to join our ArcGIS Online group (Azure), a product used by thousands of organizations around the world to maintain infrastructure, manage natural resources, respond to disaste…

View Details
Posted 2026-01-30