Software Engineer, Collective Communication jobs in United States
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OpenAI · 10 hours ago

Software Engineer, Collective Communication

positionSan Francisco, CA
timeFull-time
remoteHybrid
seniorityMid Level
money$380K/yr - $555K/yr

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. As a Software Engineer on the Workload Networking team, you will design and implement custom networking collectives to enhance the training stack for our supercomputers.

Agentic AIArtificial Intelligence (AI)Foundational AIGenerative AIMachine LearningNatural Language ProcessingSaaS
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Growth Opportunities
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H1B Sponsor Likelynote

Responsibilities

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

Qualification

C++CUDALow level programmingDistributed algorithmsRDMANetwork simulation

Required

Background in low level performance critical software
Experience in C++ and CUDA
Ability to design and implement efficient collective operations
Ensure that training jobs take full advantage of different network transports
Work on simulations to inform future supercomputer network designs

Preferred

Experience with collective communication
Have written distributed algorithms using RDMA in the past
Are familiar with network simulation techniques

Benefits

Relocation assistance

Company

OpenAI

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OpenAI is an AI research and deployment company that develops advanced AI models, including ChatGPT. It is a sub-organization of OpenAI Foundation.
dateFounded in 2015
location
San Francisco, California, USA
people-size201-500 employees
web-link
https://www.openai.com

H1B Sponsorship

OpenAI has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)
2023 (1)
2022 (18)
2021 (10)
2020 (6)

Funding

Current Stage
Growth Stage
Total Funding
$79B
Key Investors
The Walt Disney CompanySoftBankThrive Capital
2025-12-11Corporate Round· $1B
2025-10-02Secondary Market· $6.6B
2025-03-31Series Unknown· $40B

Leadership Team

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Sam Altman
CEO & Co-Founder
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Greg Brockman
President, Chairman, & Co-Founder
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Company data provided by crunchbase