What is JAX and how common is it in AI job postings?

JAX is a skill in the "Frameworks & Tools" category. It currently appears in 242 active AI roles across 39 companies in our index.

Which companies are hiring for JAX?

The top employers with active AI roles mentioning JAX are: NVIDIA (51), Amazon (38), Google (34), Apple (30), Cohere (15).

Is demand for JAX growing?

Over the last 12 weeks, 138 new AI postings mentioned JAX. Demand is rising — up 139% in the last four weeks compared to the earliest four weeks in the window.

At which stage of AI development is JAX used?

Roles requiring JAX are concentrated in: serving infrastructure (40%), post-training (17%), agents (14%). These stages follow a seven-stage AI lifecycle from data preparation through to shipped product.

What skills are commonly paired with JAX?

Job postings that mention JAX most often also require: PyTorch, Python, Machine Learning, TensorFlow, Computer Architecture.

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JAX

242 active AI roles across 39 companies mention JAX. Category: Frameworks & Tools.

Demand trend

New AI postings mentioning JAX per week — 138 total over 12 weeks.

Sector

All Big Tech · 116 Semiconductors · 59 AI Frontier · 42 Robotics · 7 Enterprise · 4 Data AI · 3 Vertical AI · 2 Multimodal · 2 Fintech · 2 Consumer · 2 Retail · 1 Insurance · 1 Defense · 1

Function

All Engineering · 179 Research · 63

Status

All Active only

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242 AI roles requiring this skill.

Company	Title	Sector	AI score	Stage
OpenAI	ML Research Engineer - Hardware Codesign	AI Frontier	9	L3
Google	Post-Doctoral Researcher, PhD, 2026 Start (Fixed-Term Contract)	Big Tech	9	L1
NVIDIA	Senior Deep Learning Performance Architect	Semiconductors	9	L3
NVIDIA	Senior Research Engineer, Foundation Model Training Infrastructure	Semiconductors	9	L1
NVIDIA	Senior Robotics Research Scientist	Semiconductors	9	L6
Apple	Senior Computer Vision and Machine Learning Engineer, Creativity Apps	Big Tech	9	L2
Figma	AI Applied Scientist	Enterprise	9	L2
OpenAI	Research Engineer, Privacy	AI Frontier	9	L2
Microsoft	Principal Research Engineer - Generative AI - AI Frontiers	Big Tech	9	L1
Cohere	Senior ML Systems Engineer, Frameworks & Tooling	AI Frontier	9	L1
Anthropic	Research Engineer, Interpretability	AI Frontier	9	L2
OpenAI	Researcher, Pretraining Safety	AI Frontier	9	L1
OpenAI	Training Performance Engineer	AI Frontier	9	L0
Lila Sciences	Senior / Engineer II, AI Lab Research Engineer	AI Frontier	9	L4
Amazon	Sr. Software Engineer- AI/ML, AWS Neuron Distributed Training	Big Tech	9	L1
Apple	AIML - Machine Learning Research, Multimodal Foundation Models	Big Tech	9	L1
Anthropic	Performance Engineer, GPU	AI Frontier	9	L3
Abridge	Machine Learning Scientist (All Levels)	Vertical AI	9	L2
Apple	Machine Learning Engineer - Intern	Big Tech	9	L0
Cohere	Member of Technical Staff, Post-Training	AI Frontier	9	L2
Cohere	Member of Technical Staff, Search	AI Frontier	9	L0
Fireworks AI	Member of Technical Staff, Research	Data AI	9	L1
Scale AI	ML Research Engineer, ML Systems	Data AI	9	L3
Cohere	Member of Technical Staff, Training Infra Engineer	AI Frontier	9	L0
Cohere	Member of Technical Staff, Training Performance Engineer	AI Frontier	9	L1
Cohere	Senior Member of Technical Staff, Multimodal AI	AI Frontier	9	L2
Cohere	Member of Technical Staff, Modeling	AI Frontier	9	L3
Apple	Sr. ML Production Model Automation Engineer, Siri Speech	Big Tech	8	L2
Google	Software Engineer III, AI/ML, Proxybidder ML	Big Tech	8	L3
Amazon	Sr GenAI Infra Specialist SA, AWS WWSO Startup	Big Tech	8	L3

Frequently asked questions

What is JAX and how common is it in AI job postings?
JAX is a skill in the "Frameworks & Tools" category. It currently appears in 242 active AI roles across 39 companies in our index.
Which companies are hiring for JAX?
The top employers with active AI roles mentioning JAX are: NVIDIA (51), Amazon (38), Google (34), Apple (30), Cohere (15).
Is demand for JAX growing?
Over the last 12 weeks, 138 new AI postings mentioned JAX. Demand is rising — up 139% in the last four weeks compared to the earliest four weeks in the window.
At which stage of AI development is JAX used?
Roles requiring JAX are concentrated in: serving infrastructure (40%), post-training (17%), agents (14%). These stages follow a seven-stage AI lifecycle from data preparation through to shipped product.
What skills are commonly paired with JAX?
Job postings that mention JAX most often also require: PyTorch, Python, Machine Learning, TensorFlow, Computer Architecture.

JAX

Top employers

Often paired with

Demand trend

Frequently asked questions

Demand trend

JAX

Top employers

Often paired with

Frequently asked questions