Software Engineer, Data Infrastructure

Software Engineer, Data Infrastructure - Research

OpenAI

Location:
United States , San Francisco

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

250000.00 - 380000.00 USD / Year

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Job Description:

The Workload team is responsible for designing and running OpenAI’s LLM training and inference infrastructure that powers frontier models at massive scale. Our systems unify how researchers train and serve models, abstracting away the complexity of performance, parallelism, and execution across vast GPU/accelerator fleets. By providing this foundation, the Workload team ensures that researchers can focus on advancing model capabilities while we handle the scale, efficiency, and reliability required to bring those models to life.

Job Responsibility:

Design and implement the dataset infrastructure that powers OpenAI’s next-generation training stack
Design and maintain standardized dataset APIs, including for multimodal (MM) data that cannot fit in memory
Build proactive testing and scale validation pipelines for dataset loading at GPU scale
Collaborate with teammates to integrate datasets seamlessly into training and inference pipelines
Document and maintain dataset interfaces so they are discoverable, consistent, and easy for other teams to adopt
Establish safeguards and validation systems to ensure datasets remain reproducible and unchanged once standardized
Debug and resolve performance bottlenecks in distributed dataset loading
Provide visualization and inspection tools to surface errors, bugs, or bottlenecks in datasets

Requirements:

Strong engineering fundamentals with experience in distributed systems, data pipelines, or infrastructure
Experience building APIs, modular code, and scalable abstractions
Comfortable debugging bottlenecks across large fleets of machines
Pride in building infrastructure that 'just works'
Collaborative, humble, and excited to own a foundational part of the ML stack

Nice to have:

Background knowledge in data math, probability, or distributed data theory
Worked with GPU-scale distributed systems or dataset scaling for real-time data

What we offer:

Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
401(k) retirement plan with employer match
Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time
Mental health and wellness support
Employer-paid basic life and disability coverage
Annual learning and development stipend to fuel your professional growth
Daily meals in our offices, and meal delivery credits as eligible
Relocation support for eligible employees
Additional taxable fringe benefits, such as charitable donation matching and wellness stipends
Offers Equity
Performance-related bonus(es) for eligible employees

Additional Information:

Job Posted:
February 21, 2026

Employment Type:

Fulltime

Work Type:

On-site work

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Job Link Share:

Software Engineer, Data Infrastructure - Research

OpenAI

Location:
United States , San Francisco

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
February 21, 2026

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