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.
1,275 active AI roles across 189 companies in our index reference Tool use as of today. New postings fell 20% in the last 30 days versus the prior 30 (695 → 554).
The companies with the most active Tool use listings are: JPMorgan Chase (73 roles), Salesforce (59 roles), Amazon (57 roles), Google (52 roles), Adobe (46 roles).
Tool use primarily belongs to the agents stage of the AI lifecycle. In current hiring, Tool use roles concentrate at: agents (94%), post-training (2%).
The sectors with the most active Tool use hiring are: Enterprise, Big Tech, Data AI.
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, 1,275 active AI roles across 189 companies in our index reference Tool use. Hiring concentrates at the agents (94%) and post-training (2%) stages. Most common sectors: Enterprise, Big Tech, Data AI. New postings fell 20% in the last 30 days versus the prior 30 (695 → 554).
18 AI roles tagged tool_use.
| Company | Title | Sector | AI score | Other tags |
|---|---|---|---|---|
| Verizon | Princ Engr-AI Science | Telecom | 9 | Agent orchestration · Multi-agent · Fine-tuning · RAG · Vector DB · LLM observability |
| Verizon | Dist Engr-AI/ML Engineering | Telecom | 9 | Agent orchestration · RAG · Guardrails · LLM observability · Agent research |
| AT&T | Director Cybersecurity - AI/ML/Automation (Cyber Threat Analytics) | Telecom | 8 | Agent orchestration · Evals · Guardrails · LLM observability · Fine-tuning · Inference infra · Model serving |
| Verizon | Director - AI/ML Engineering | Telecom | 8 | LLM observability · Agent orchestration · Vector DB · Model serving · Inference infra · Guardrails |
| Verizon | Sr Engr Cslt-Data Science | Telecom | 8 | Agent orchestration · RAG · LLM observability · Fine-tuning · Model serving |
| T-Mobile | Sr AI Engineer | Telecom | 8 | Agent orchestration · Fine-tuning · RAG · Agent research · LLM observability |
| T-Mobile | Sr. AI Engineer | Telecom | 8 | Agent orchestration · Fine-tuning · RAG · LLM observability · Evals · Guardrails |
| Verizon | Senior Engineering Consultant-Cloud & AI | Telecom | 8 | Agent orchestration · RAG · LLM observability · Model serving · Inference infra |
| T-Mobile | Associate AI Engineer | Telecom | 7 | Agent orchestration · Fine-tuning · RAG · LLM observability |
| Verizon | Engr III Cslt-AI/ML Engrg | Telecom | 7 | Agent orchestration |
| AT&T | Principal Solution Architect | Telecom | 7 | Agent orchestration · RAG |
| Verizon | Distinguished Network Security Engineer | Telecom | 7 | Agent orchestration · Evals · Guardrails · LLM observability |
| AT&T | Lead Technical Product Manager – Applied AI | Telecom | 7 | Agent orchestration · Evals · LLM observability · RAG · Multimodal |
| Verizon | Senior Product Manager, Chat Strategy | Telecom | 5 | Agent orchestration · RAG |
| AT&T | Principal Applications Developer | Telecom | 5 | Agent orchestration · LLM observability |
| AT&T | Sr. Associate - Python Programming/Automation-LangChain and LangGraph/Service Assurance/Networking | Telecom | 5 | Agent orchestration |
| AT&T | Lead Applications Development | Telecom | 5 | Agent orchestration · LLM observability · RAG · Fine-tuning · Model serving |
| AT&T | Full-Stack Software Engineer | Telecom | 5 | Agent orchestration · LLM observability · RAG · Vector DB · Fine-tuning · Model serving · Recommender systems · Search & ranking · Vision · Multimodal · Audio & speech · Frontier research · Interpretability · Synthetic data · Agent research · RL post-training · RLHF · Reward modeling · RL robotics · Embodied AI · Code gen |