Function Calling

Frequently asked questions

• What is Function Calling and how common is it in AI job postings?

  Function Calling is a skill in the "Agents & Autonomy" category. It currently appears in 169 active AI roles across 61 companies in our index.

• Which companies are hiring for Function Calling?

  The top employers with active AI roles mentioning Function Calling are: Amazon (17), Google (14), JPMorgan Chase (9), Salesforce (6), Microsoft (6).

• Is demand for Function Calling growing?

  Over the last 12 weeks, 131 new AI postings mentioned Function Calling. Demand is rising — up 342% in the last four weeks compared to the earliest four weeks in the window.

• At which stage of AI development is Function Calling used?

  Roles requiring Function Calling are concentrated in: agents (82%), application (8%), serving infrastructure (6%). These stages follow a seven-stage AI lifecycle from data preparation through to shipped product.

• What skills are commonly paired with Function Calling?

  Job postings that mention Function Calling most often also require: Agentic Systems, Agent Orchestration, Python, Large Language Models (LLMs), Prompt Engineering.