How many AI roles reference Pretraining right now?

224 active AI roles across 45 companies in our index reference Pretraining as of today. New postings fell 34% in the last 30 days versus the prior 30 (59 → 39).

Which companies are hiring for Pretraining roles?

The companies with the most active Pretraining listings are: Capital One (25 roles), NVIDIA (22 roles), Meta (19 roles), Microsoft (19 roles), Google (13 roles).

What AI lifecycle stage does Pretraining belong to?

Pretraining primarily belongs to the pre-training stage of the AI lifecycle. In current hiring, Pretraining roles concentrate at: pre-training (65%), post-training (21%).

What sectors invest most in Pretraining?

The sectors with the most active Pretraining hiring are: Big Tech, AI Frontier, Semiconductors.

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Pretraining

Initial large-scale training of foundation models on massive unlabeled corpora to learn general representations; the most compute-intensive stage of the lifecycle.

Primary AI lifecycle stage: pre-training.

As of today, 224 active AI roles across 45 companies in our index reference Pretraining. Hiring concentrates at the pre-training (65%) and post-training (21%) stages. Most common sectors: Big Tech, AI Frontier, Semiconductors. New postings fell 34% in the last 30 days versus the prior 30 (59 → 39).

Top hiring:

Sector

All Big Tech · 124 AI Frontier · 63 Semiconductors · 43 Banking · 26 Enterprise · 22 Data AI · 11 Quant · 9 Robotics · 8 Fintech · 7 Multimodal · 5 Consumer · 3 Pharma · 2 Healthcare · 2 Hospitality · 1 Coding AI · 1

Function

All Research · 235 Engineering · 87 Product · 5

Status

All Active only

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AI score Recently posted Company A–Z

FilteredsectorAI Frontier×

63 AI roles tagged pretraining.

Company	Title	Sector	AI score	Other tags
OpenAI	Researcher, Training - London	AI Frontier	10	Frontier research · Model serving · Inference infra
Mistral AI	Applied Scientist / Research Engineer - EMEA	AI Frontier	10	Fine-tuning · Model serving · Inference infra · Agent orchestration · RAG · Multimodal · Vision · Audio & speech
Mistral AI	Research Engineer, Machine Learning - Paris/London/Zurich/Warsaw	AI Frontier	10	Fine-tuning · Frontier research · Model serving
Mistral AI	AI Scientist - Zurich	AI Frontier	10	Frontier research · Agent research · Multimodal · Audio & speech · Code gen · Evals · Model serving · Fine-tuning
Mistral AI	AI Scientist - Audio	AI Frontier	10	Frontier research · Audio & speech
Mistral AI	AI Scientist - Paris/London - Onsite or Hybrid or Remote	AI Frontier	10	Frontier research · Fine-tuning · Evals · Model serving · Multimodal · Audio & speech · Agent research
Mistral AI	AI Scientist - Palo Alto	AI Frontier	10	Frontier research · Agent research · Multimodal · Audio & speech · Code gen · Evals · Model serving
Anthropic	Research Engineer, Science of Scaling	AI Frontier	10	Frontier research · Model serving
Anthropic	Research Engineer / Research Scientist, Pre-training	AI Frontier	10	Frontier research · Multimodal · Model serving · Inference infra
Anthropic	Research Engineer, Pretraining	AI Frontier	10	Frontier research
Anthropic	Research Engineer, Pretraining Scaling	AI Frontier	10	Frontier research · Model serving · Inference infra
Anthropic	Research Engineer/Research Scientist, Pre-training	AI Frontier	10	Frontier research · Model serving · Inference infra
Anthropic	Research Engineer / Research Scientist, Pre-training	AI Frontier	10	Frontier research · Multimodal · Model serving · Inference infra
OpenAI	Researcher, Training	AI Frontier	10	Frontier research · Model serving · Inference infra
Anthropic	Staff Research Engineer, Discovery Team	AI Frontier	10	Frontier research · Fine-tuning · Inference infra · Model serving · Agent orchestration · Evals
OpenAI	Research Scientist	AI Frontier	10	Frontier research
Anthropic	Research Scientist / Research Engineer, Pre-training	AI Frontier	10	Frontier research
xAI	Member of Technical Staff - Pre-Training	AI Frontier	10	Frontier research · Model serving
OpenAI	Distributed Training Engineer, Sora	AI Frontier	10	Model serving · Multimodal
Writer	Staff AI research scientist	AI Frontier	9	Frontier research · RL post-training · Agent research · Agent orchestration · Tool use · Evals · Fine-tuning · LLM observability
OpenAI	Technical Lead Manager - Training Runtime, Data(set) Movement	AI Frontier	9	Multimodal
Cohere	Member of Technical Staff, Multilingual	AI Frontier	9	Frontier research · Fine-tuning
Cohere	Senior Member of Technical Staff, Web Data	AI Frontier	9	Synthetic data
OpenAI	RE/RS, Data Understanding - Foundations	AI Frontier	9	Synthetic data · Frontier research
Mistral AI	AI Scientist - Warsaw	AI Frontier	9	Frontier research · Agent research · Multimodal · Audio & speech · Code gen · Evals · Fine-tuning · Model serving
Cohere	Research Internship (Fall / Winter 2026)	AI Frontier	9	Frontier research · Fine-tuning · Evals · Multimodal
Lila Sciences	ML Scientist I / II, Foundation Models for Life Sciences	AI Frontier	9	Frontier research · Fine-tuning · Multimodal
Mistral AI	Applied Scientist / Research Engineer - Singapore	AI Frontier	9	Fine-tuning · Model serving · Agent orchestration · RAG · Multimodal · Vision · Audio & speech
Lila Sciences	Senior / Principal ML Scientist, Foundation Models for Life Sciences	AI Frontier	9	Frontier research · Fine-tuning · Multimodal
xAI	Member of Technical Staff - Multimodal Understanding	AI Frontier	9	Multimodal · Fine-tuning · Model serving · Inference infra · Evals · Vision · Audio & speech · Agent orchestration · Tool use · Frontier research

Frequently asked questions

What is Pretraining in AI?
Initial large-scale training of foundation models on massive unlabeled corpora to learn general representations; the most compute-intensive stage of the lifecycle. Primary AI lifecycle stage: pre-training.
How many AI roles reference Pretraining right now?
224 active AI roles across 45 companies in our index reference Pretraining as of today. New postings fell 34% in the last 30 days versus the prior 30 (59 → 39).
Which companies are hiring for Pretraining roles?
The companies with the most active Pretraining listings are: Capital One (25 roles), NVIDIA (22 roles), Meta (19 roles), Microsoft (19 roles), Google (13 roles).
What AI lifecycle stage does Pretraining belong to?
Pretraining primarily belongs to the pre-training stage of the AI lifecycle. In current hiring, Pretraining roles concentrate at: pre-training (65%), post-training (21%).
What sectors invest most in Pretraining?
The sectors with the most active Pretraining hiring are: Big Tech, AI Frontier, Semiconductors.