Senior AI Engineer (Generative AI)

Location: San Francisco, California, United States

Company

Join an ambitious, high-growth AI startup building AI-powered products with Generative AI, LLMs, and agentic AI.

What you will do

• Design and develop production-grade AI-powered applications using LLMs, Generative AI, and AI APIs.
• Build RAG systems, vector database integrations, semantic search, AI agents, tool-calling capabilities, and agentic workflows.
• Own architecture, backend engineering, API development, and scalable system design.
• Deploy, scale, and operate AI applications on AWS, GCP, or Azure.
• Take AI products from prototype through production while collaborating with founders, senior engineers, and technical leadership.
• Influence technical decisions, product direction, and engineering best practices across the full product lifecycle.

Requirements

• Strong commercial experience in AI Engineering, Applied AI, or Software Engineering.
• Advanced Python programming experience; TypeScript or JavaScript experience is preferred alongside Python.
• Hands-on experience building applications with LLMs, Generative AI, and AI APIs.
• Strong knowledge of Retrieval-Augmented Generation, vector databases, and semantic search.
• Experience developing AI agents, tool calling, and agentic workflows.
• Familiarity with LangChain, LangGraph, LlamaIndex, or similar frameworks.
• Strong understanding of backend engineering, API development, and system architecture.
• Experience deploying and scaling applications using AWS, GCP, or Azure.
• Knowledge of LLM evaluation, observability, latency, and performance optimization.
• Experience taking AI products from prototype through production, with strong problem-solving skills and the ability to work independently in a fast-paced environment.

Nice to have

• Previous experience in a startup or high-growth technology business.

Culture & Benefits

• Work in a fast-paced, collaborative, highly technical engineering environment.
• Own products from initial architecture and development through production deployment.
• Work directly with founders, senior engineers, and technical leadership.
• Build and scale AI-powered products used in real-world environments.
• Opportunities for technical progression and leadership within a growing engineering team.
• Competitive salary dependent on experience.

Hiring process

• Apply with a full CV and contact details for consideration.