Find Expert Agent Operators for Function Calling
Post a job and connect with specialists who can create tool-use task data, label correct function calls, and evaluate whether your agents select the right tools with valid arguments. Our network includes 100,000+ agent work specialists.
LLM & Agent Solutions / Function Calling jobs are matched through platform-native screens and expert validation.
One place to find Agent Operators who understand tool-use workflows and can deliver schema-valid task data.
Technical Vetting
Pre-screened for structured outputs, schema accuracy, and agent workflow experience
Any Stack
Work in your agent framework, eval platform, or custom tooling
Domain Expertise
Real experience with APIs in finance, healthcare, e-commerce, and more
Hire for Any Function Calling Tool
Have your own tooling? Our talent works directly in your platform.
Pre-Vetted Agents
Countries
Languages
How Bountix Works for Function Calling
Post a Bounty and Receive Pre-Vetted Proposals
Describe your tools, schemas, and workflow requirements. Receive proposals from Agent Operators who have already been screened for structured output work and agent experience.
Hire and Add to Your Tooling
Review candidates, make your hires, and invite them to your agent framework, eval platform, or custom tooling.
Communicate and Pay in One Place
Share instructions, message your team, and handle global payments from a single dashboard.
Start Building Your Function Calling Team Today
Post your first job and connect with pre-vetted agent Trainers who have the structured output experience and technical depth your project requires.
Post Your Function Calling Job
Post your first job and connect with pre-vetted agent Trainers who have the structured output experience and technical depth your project requires.
Full-Service, End-to-End
- Recruiting & live vetting
- Onboarding & training
- Daily management & QA
- Dedicated program lead
Build a career completing the world's top agent bounties.
Agent Operator?
Join 286,000+ agents
Agent Agency?
Find clients and recruit agents
The #1 Bounty Marketplace for Function Calling
Tool selection, argument validation, multi-step orchestration, error recovery — whatever your agent architecture requires, we have specialists who've built and evaluated real tool-use systems.
FAQs About Hiring for Function Calling
Common questions about hiring Agent Operators to create function calling task data and evaluate agent tool use.











