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

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242 AI roles requiring this skill.

Company	Title	Sector	AI score	Stage
NVIDIA	Senior Deep Learning Software Engineer	Semiconductors	9	L3
Apple	Machine Learning Research Engineer, Siri Speech	Big Tech	9	L5
Mistral AI	Open-Source Software, Machine Learning Engineer	AI Frontier	9	L3
NVIDIA	Senior AI Software Engineer, Kernel Libraries	Semiconductors	9	L3
NVIDIA	Senior Software Engineer, AI and DL Kernel Libraries	Semiconductors	9	L3
NVIDIA	Senior Deep Learning Software Engineer, LLM Performance	Semiconductors	9	L3
NVIDIA	Senior High-Performance LLM Training Engineer	Semiconductors	9	L0
Mistral AI	Applied Scientist / Research Engineer (Internship)	AI Frontier	9	L2
NVIDIA	Senior Robotics Research Engineer, Robotics and AI for Drug Discovery	Semiconductors	9	L4
NVIDIA	Senior Manager, Software Engineering - JAX	Semiconductors	9	L3
NVIDIA	Senior HPC and AI Network Software Architect	Semiconductors	9	L3
Salesforce	Research Scientist - Salesforce AI Research	Enterprise	9	L2
NVIDIA	AI Inference Performance Engineer	Semiconductors	9	L3
NVIDIA	Senior Deep Learning Software Engineer, TensorRT Performance	Semiconductors	9	L3
NVIDIA	Senior Deep Learning Compiler Engineer - XLA	Semiconductors	9	L3
NVIDIA	Senior DGX Cloud AI Infrastructure Software Engineer	Semiconductors	9	L3
DoorDash	Senior/Staff Deep Reinforcement Learning Engineer	Consumer	9	L4
Baseten	Post-Training Research Engineer	Data AI	9	L2
Apple	Senior Computer Vision and Machine Learning Engineer, Creator Studio	Big Tech	9	L2
Cohere	Member of Technical Staff, Safety for Agents	AI Frontier	9	L2
Microsoft	Member of Technical Staff, Capacity & Efficiency Infrastructure - MAI Superintelligence Team	Big Tech	9	L3
Apple	Evaluation & Insights Machine Learning Engineer	Big Tech	9	L5
xAI	Member of Technical Staff - Imagine Model	AI Frontier	9	L2
Cerebras	Senior ML Systems Engineer	Semiconductors	9	L2
Apple	AIML - Machine Learning Researcher, MLR	Big Tech	9	L1
Mistral AI	Research Engineer, Machine Learning	AI Frontier	9	L1
ByteDance	Research Engineer/Scientist (all levels), Efficient Models	Big Tech	9	L2
ByteDance	Sr. Research Engineer/Scientist (all levels), Efficient Models	Big Tech	9	L2
ByteDance	Sr. Research Engineer/Scientist (all levels), Efficient Models	Big Tech	9	L2
NVIDIA	Research Scientist, Robotics Research - PhD New College Grad 2026	Semiconductors	9	L4

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

JAX

Top employers

Often paired with

Demand trend

Frequently asked questions