Job description
AI Agent Designer
Company Overview
OpenCX is a high-growth, YC-backed startup focused on building AI agents that power enterprise customer experiences.
Job Summary
We're hiring an AI Agent Designer to build, prompt-engineer, and continuously improve the AI agents that power OpenCX. You'll work directly with customers and our product team to translate real customer use cases into agent behavior that just works — designing conversation flows, writing and iterating on prompts, and measuring agent performance against real customer outcomes.
Key Responsibilities
- Design and build new AI agents end-to-end: define behavior, write the prompts, set up tool/function calls, and ship to customers.
- Iterate on prompts based on real customer conversations and edge cases — measuring quality, latency, and accuracy.
- Work directly with customers to understand their use cases, then translate them into agent behavior that just works.
- Run experiments across models, prompt structures, and agent architectures to push performance higher.
- Collaborate closely with the Product Engineering team: feed real customer needs back into platform improvements.
- Build deep expertise in our agent stack — LLMs, tools, evaluations — so you can advise customers on what's possible.
- Document agent design patterns, prompt templates, and evaluation playbooks to strengthen internal and customer resources.
Requirements / Qualifications
- Hands-on experience with prompt engineering and AI agents — you've built, tuned, and shipped LLM-powered features.
- Strong technical foundation — you can read code, work with APIs, and run evaluations to measure agent quality.
- Solid understanding of how modern LLMs behave, where they fail, and how to design prompts and tools to make them reliable.
- Customer-facing experience or strong willingness to engage directly with customers to learn their use cases.
- Excellent English communication skills — clear writing and confident speaking on video calls with enterprise stakeholders.
- Ability to operate effectively in a fast-moving startup: you prioritize speed, customer impact, and getting things done.
- Comfortable working remotely with customers across multiple global time zones.
Salary & Benefits
- Top of the market compensation
- Health insurance
- Working at a high-growth, YC-backed startup
