AI Insights
OpenAI

Inference Technical Lead, On-Device Transformers

OpenAI · San Francisco, California, US
full-timelead (8-15 yrs)Posted 47d ago
Machine Learning EngineeringIC5IC + ManagementHybrid (4d)Relocation
StackCUDAGPUNPUTransformer architecturesKV-cache optimizationInference enginesKernel developmentML runtimesDistributed runtimesHardware acceleratorsEdge deploymentOn-device MLMemory bandwidth optimizationSilicon platform evaluationLow-level performance engineeringCompiler toolchainsPythonC++

Summary

Technical Lead role on OpenAI's Future of Computing Research team, focused on on-device and edge deployment of transformer models. Responsible for silicon platform evaluation, low-level inference stack development, and leading a team of performance engineers building hardware-aware ML systems.

About the role

About the Team

The Future of Computing Research team is an applied research team in the Consumer Devices group focused on developing new methods and models to support our vision as we advance forward in our mission of building AGI that benefits all of humanity.

About the Role

As a Technical Lead on the Future of Computing Research team, you will work together with both the best ML researchers in the world and the greatest design talent of our generation to push the frontier of model capabilities.

This role is based in San Francisco, CA. We follow a hybrid model with 4 days a week in the office and offer relocation assistance to new employees.

In this role, you will:

  • Evaluate and select silicon platforms (GPUs, NPUs, and specialized accelerators) for on-device and edge deployment of OpenAI models.

  • Work closely with research teams to co-design model architectures that meet real-world deployment constraints such as latency, memory, power, and bandwidth.

  • Analyze and model system performance, identifying tradeoffs between model design, memory hierarchy, compute throughput, and hardware capabilities.

  • Partner with hardware vendors and internal infrastructure teams to bring up new accelerators and ensure efficient execution of transformer workloads.

  • Build and lead a team of engineers responsible for implementing the low-level inference stack, including kernel development and runtime systems.

  • Run through the necessary walls to take nascent research capabilities and turn them into capabilities we can build on top of.

You might thrive in this role if you:

  • Have experience evaluating or deploying workloads on GPUs, NPUs, or other specialized accelerators.

  • Understand the performance characteristics of transformer models, including attention, KV-cache behavior, and memory bandwidth requirements.

  • Have designed or optimized high-performance compute systems, such as inference engines, distributed runtimes, or hardware-aware ML pipelines.

  • Have experience building or leading teams working on low-level performance-critical software such as CUDA kernels, compilers, or ML runtimes.

  • Have already spent time in the weeds teaching models to speak and perceive.

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 we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.

For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement.

Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.

To notify OpenAI that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance.

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

OpenAI Global Applicant Privacy Policy

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.

What you'll do

1Evaluate and select silicon platforms (GPUs, NPUs, specialized accelerators) for on-device and edge model deployment
2Co-design model architectures with research teams to meet latency, memory, power, and bandwidth constraints
3Analyze and model system performance, identifying tradeoffs across memory hierarchy, compute throughput, and hardware capabilities
4Partner with hardware vendors and internal infrastructure teams to bring up new accelerators for transformer workloads
5Build and lead a team of engineers implementing the low-level inference stack including kernel development and runtime systems
6Translate nascent research capabilities into production-ready deployable capabilities

Requirements

5+ years evaluating or deploying workloads on GPUs, NPUs, or specialized accelerators with deep hardware performance intuition
Expertise in transformer model performance characteristics including attention mechanisms, KV-cache behavior, and memory bandwidth constraints
Proven track record designing or optimizing high-performance compute systems such as inference engines, distributed runtimes, or hardware-aware ML pipelines
Experience building or leading teams delivering low-level performance-critical software (CUDA kernels, compilers, ML runtimes)
Ability to co-design model architectures with researchers to meet real-world deployment constraints (latency, memory, power, bandwidth)

Nice to have

NPU architecture knowledge
Edge AI deployment
Multimodal model experience
On-device speech or vision models
Hardware vendor partnership experience
Accelerator bring-up

Role overview

Role family
Machine Learning Engineering
Level
IC5 — ml_ai
Experience
8–15 years
Type
Hybrid (IC + Management)
Remote policy
Hybrid (4 days)
Visa sponsorship
Not offered

Tech stack analysis

LANGUAGES
C++PythonCUDA
FRAMEWORKS
Transformer inference frameworksML runtimes
INFRASTRUCTURE
GPUsNPUsSpecialized acceleratorsEdge hardwareOn-device compute
TOOLS
CUDA kernelsCompiler toolchainsInference enginesDistributed runtimes

Salary estimate

$350K – $600K
AI-estimated salary range
Confidence72%
Reasoning

OpenAI is one of the highest-paying AI companies in the industry. A Technical Lead role on a specialized applied research team in SF, requiring deep expertise in on-device inference, GPU/NPU kernels, and transformer deployment, commands top-tier compensation. Based on publicly known OpenAI compensation bands, senior/lead IC roles typically range $300K–$500K+ in total comp (base + equity + bonus). A technical lead with team-building responsibilities and this level of hardware+ML specialization likely sits at the higher end, estimated $350K–$600K total annual compensation (base ~$220K–$280K + significant equity + bonus).

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Green flags

5 items
Part of an applied research team (Future of Computing Research) at one of the most impactful AI labs — exceptional career growth and visibility.growth

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Benefits breakdown

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Hiring insights

JD quality
7/10
Urgency
medium
Autonomy
high
Team size
small (2-5)

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Red flags

PRO4 items
4 days/week in-office mandate in San Francisco is a significant in-person commitment, limiting flexibility.work life balance

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Interview insights

PRO
Rounds
5
Duration
4 wks
Difficulty
very hard
Take-home
No

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Career path

PRO
Next roles
Principal EngineerDirector of ML EngineeringVP of Engineering

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About the company

OpenAI is the AI research laboratory behind GPT-4, ChatGPT, DALL-E, and the Codex API. With over 200 million weekly active ChatGPT users, OpenAI is at the forefront of large language model development and deployment. The company pursues a mission of building safe artificial general intelligence that benefits all of humanity.

HQSan Francisco, CA, USA
Interview difficultyvery hard
Build vs Maintainbuild
Cross-functionalYes