Senior Prompt AI Engineer — Build Smart AI Agents

HyperBlu Labs; San Francisco (CA); On-site; USD 120,000 - 210,000; Full time

Benefits offered by this job

Voice AI platform experience

AI evaluation/benchmarking experience

Startup experienece

Job summary

HyperBlu Labs in the San Francisco Bay Area is seeking a Prompt AI Engineer to design, implement, and optimize prompts and workflows for large language models supporting clients and internal tools.

You will create and refine prompts, develop agent workflows, review conversations for improvements, and build evaluation processes to measure performance, with a focus on automation, quality, and user experience.

Qualifications

• Hands-on experience developing AI agents or LLM-powered applications.
• Strong understanding of prompt design and optimization.
• Familiarity with GPT, Claude, Gemini, LangChain, LangGraph, or similar AI frameworks.
• Working knowledge of Python or TypeScript.
• Analytical mindset with a passion for testing and continuous improvement.

Responsibilities

• Create and refine prompts for production AI agents
• Develop agent workflows and conversational logic
• Review AI conversations to identify improvement opportunities
• Build evaluation processes to measure and enhance performance
• Continuously optimize automation, response quality, and user experience

Skills

AI agent development

Prompt design & optimization

Analytical mindset

Tools

Python

TypeScript

AI frameworks (GPT/Claude/Gemini/LangChain/LangGraph)

Job description

HyperBlu Labs in the San Francisco Bay Area is seeking a Prompt AI Engineer to design, implement, and optimize prompts and workflows for large language models supporting clients and internal tools.

You will create and refine prompts, develop agent workflows, review conversations for improvements, and build evaluation processes to measure performance, with a focus on automation, quality, and user experience.