AI Engineer

About Varick Agents

Varick deploys large-scale AI transformations at major enterprises, automating entire departments through interconnected agent systems integrated into existing infrastructure.

AI Engineer - San Francisco (SF-based required) Full-time | Posted March 22, 2026

Compensation: $220,000-$250,000/year with equity

Benefits: 100% medical, dental, vision; MacBook Pro + peripherals

Key Responsibilities:

• Design and implement agent systems for complex enterprise workflows involving multi-step reasoning and exception handling
• Develop evaluation systems measuring agent quality, accuracy, safety, and factual grounding
• Engineer prompt systems and retrieval pipelines ensuring reliable agent behavior
• Create feedback mechanisms enabling agents to learn from human corrections
• Optimize inference costs and latency for production deployments
• Establish governance and observability standards for agent reliability

Requirements:

• 3+ years software engineering experience with 1-2 years focused on LLM or AI systems in production
• Hands-on experience building agent workflows with tool integration and multi-step reasoning
• Deep expertise in prompt engineering and context optimization for LLM reliability
• Experience building evaluation frameworks for AI outputs
• Strong Python and backend engineering fundamentals
• Demonstrated shipping of AI features to real users, managing hallucinations and edge cases

Helpful Experience:

• Frameworks: LangGraph, CrewAI, Claude patterns
• Vector databases: Qdrant, pgvector, Pinecone
• MCP, tool-calling protocols, API integrations
• Fine-tuning, LoRA, model adaptation
• Enterprise AI deployments with governance and compliance