AI systems that invoke external APIs, search engines, or code interpreters during inference, extending capabilities beyond raw LLM generation. The foundational capability behind most agentic products. Primary AI lifecycle stage: agents.
1,238 active AI roles across 193 companies in our index reference Tool use as of today.
The companies with the most active Tool use listings are: JPMorgan Chase (80 roles), Salesforce (64 roles), Amazon (51 roles), Adobe (49 roles), Google (44 roles).
Tool use primarily belongs to the agents stage of the AI lifecycle. In current hiring, Tool use roles concentrate at: agents (94%), application (2%).
The sectors with the most active Tool use hiring are: Enterprise, Big Tech, AI Frontier.
AI systems that invoke external APIs, search engines, or code interpreters during inference, extending capabilities beyond raw LLM generation. The foundational capability behind most agentic products.
Primary AI lifecycle stage: agents.
As of today, 1,238 active AI roles across 193 companies in our index reference Tool use. Hiring concentrates at the agents (94%) and application (2%) stages. Most common sectors: Enterprise, Big Tech, AI Frontier.
1238 AI roles tagged tool_use.
| Company | Title | Sector | AI score | Other tags |
|---|---|---|---|---|
| OpenAI | Researcher, Context - Agent Post-Training | AI Frontier | 10 | RL post-training · Agent research · Evals · Synthetic data · Agent orchestration · LLM observability |
| OpenAI | Researcher, Connectors - Agent Post-Training | AI Frontier | 10 | RL post-training · Agent orchestration · Evals · Fine-tuning · Model serving · Agent research |
| OpenAI | Researcher, Loss of Control | AI Frontier | 10 | Agent orchestration · Evals · Guardrails · LLM observability · Agent research |
| Anthropic | Research Engineer, Machine Learning (Reinforcement Learning) | AI Frontier | 10 | Agent orchestration · Evals · RL post-training · Frontier research · Code gen |
| Anthropic | Research Engineer, Machine Learning (Reinforcement Learning) | AI Frontier | 10 | RL post-training · Agent orchestration · Agent research · Frontier research · Code gen · Inference infra · Model serving |
| Perplexity | Engineering Manager (TLM, Agents) | AI Frontier | 9 | Agent orchestration · Multimodal · RL post-training · Frontier research · Model serving |
| Perplexity | Member of Technical Staff (AI Software Engineer, Agents) | AI Frontier | 9 | Agent orchestration · Multimodal · RL post-training · Frontier research |
| Scale AI | AI Builder Intern | Data AI | 9 | Agent orchestration |
| Staff Software Engineer, AAI Research | Big Tech | 9 | Agent orchestration · Agent research · RAG · Evals · Fine-tuning | |
| OpenAI | Researcher: Agent Post-Training, API & Power-Users | AI Frontier | 9 | RL post-training · Agent orchestration · Evals · Fine-tuning · Model serving |
| ClickHouse | AI Product Engineer - ClickStack | Data AI | 9 | Agent orchestration · Evals · LLM observability · RAG |
| ClickHouse | AI Product Engineer - ClickStack | Data AI | 9 | Agent orchestration · Evals · LLM observability · RAG |
| ClickHouse | AI Product Engineer - ClickStack | Data AI | 9 | Agent orchestration · Evals · LLM observability · RAG |
| ClickHouse | AI Product Engineer - ClickStack | Data AI | 9 | Agent orchestration · Evals · LLM observability · RAG · Model serving |
| ClickHouse | AI Product Engineer - ClickStack | Data AI | 9 | Agent orchestration · Evals · LLM observability · Model serving |
| Okta | Staff Product Security Engineer | Enterprise | 9 | Agent orchestration · Agent research · Evals · Guardrails · LLM observability |
| Senior Staff Software Engineer, Agentic Data Tooling, DeepMind | Big Tech | 9 | Agent orchestration · Evals · LLM observability · RAG · Fine-tuning · RL post-training · Embodied AI | |
| JPMorgan Chase | Applied Machine Learning Scientist - Vice President | Banking | 9 | Agent orchestration · Evals · Guardrails · LLM observability · RAG · Fine-tuning · Model serving · Recommender systems · Multimodal · Agent research · RL post-training |
| Anthropic | Research Scientist, Life Sciences | AI Frontier | 9 | Agent orchestration · Evals · Fine-tuning · RL post-training |
| Ramp | Senior Growth Operator, Partner | Fintech | 9 | Agent orchestration · Evals · Guardrails |
| Augury | Senior GenAI Engineer | Vertical AI | 9 | Agent orchestration · Evals · RAG · Vector DB · Fine-tuning · Model serving · LLM observability · Multimodal |
| NVIDIA | Senior Software Manager, Agentic AI | Semiconductors | 9 | Agent orchestration · Fine-tuning · RL post-training · RAG · Multimodal · Code gen |
| Research Scientist, Frontier Health, DeepMind | Big Tech | 9 | Agent orchestration · Multimodal · RL post-training · Reward modeling · Evals · Vision · Audio & speech | |
| NVIDIA | Senior Data Scientist - Security and Networking Research | Semiconductors | 9 | Agent orchestration · RAG · Evals · Fine-tuning · Model serving · Inference infra · Multimodal · Synthetic data |
| Forward Deployed Development Manager, Generative AI, Google Cloud | Big Tech | 9 | Agent orchestration · RAG · Model serving | |
| Oracle | Principal Applied Scientist | Enterprise | 9 | Agent orchestration · RAG · Fine-tuning · Model serving · LLM observability · Guardrails |
| Verizon | Princ Engr-AI Science | Telecom | 9 | Agent orchestration · Multi-agent · Fine-tuning · RAG · Vector DB · LLM observability |
| Mistral AI | Model Behavior Architect- Function Calling | AI Frontier | 9 | Agent orchestration · Evals · LLM observability · Agent research |
| Apple | Machine Learning Engineer | Big Tech | 9 | Agent orchestration · Evals · Guardrails · RAG · Vector DB · Fine-tuning · Inference infra · Model serving · LLM observability |
| Research Scientist, Stitch | Big Tech | 9 | Agent orchestration · Evals · Synthetic data · Agent research · Fine-tuning · RL post-training |