Onsite SF Full-Stack AI Engineer — Build AI-Native Apps

H. T. PROF Group; San Francisco (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

H. T. PROF Group in San Francisco is seeking a hands-on Full Stack AI Engineer to help build and launch AI-native products from the ground up.

This is a fully onsite role; candidates must live in the San Francisco Bay Area and work from the office five days a week. Remote, hybrid, or relocation candidates will not be considered. You will work across frontend, backend, infrastructure, and AI systems, collaborating with founders to turn ideas into production-ready applications, and to shape the

Qualifications

• 4+ years of professional software engineering experience.
• Proven experience building and launching a product from zero to one.
• Strong frontend and backend development experience.
• Experience at an early-stage startup and with AI/ML integrations.

Responsibilities

• Build, test, launch, and improve full-stack products from zero to one.
• Develop frontend applications using React, Next.js, or similar technologies.
• Build backend services, APIs, databases, and integrations.
• Create AI-powered features using large language models and multimodal models.
• Build AI agents that can use tools, complete workflows, and interact with external systems.
• Develop retrieval-augmented generation, embeddings, vector search, and knowledge systems.
• Integrate voice AI, speech-to-text, text-to-speech, or real-time conversational systems.
• Implement model routing, structured outputs, tool calling, and human approval workflows.
• Build evaluation, monitoring, and testing systems for AI performance.
• Improve application speed, reliability, scalability, security, and AI inference costs.

Skills

Full stack development

Zero-to-one product

Frontend & backend

Startup experience

LLM integration

AI agents

RAG & tool calling

Embeddings

Vector databases

AI systems

Tools

Node.js

Python

FastAPI

Go

PostgreSQL

Docker

AWS

Google Cloud

Azure

LlamaIndex

Pinecone

Qdrant

Weaviate

pgvector

WebSockets

WebRTC

Job description

H. T. PROF Group in San Francisco is seeking a hands-on Full Stack AI Engineer to help build and launch AI-native products from the ground up.

This is a fully onsite role; candidates must live in the San Francisco Bay Area and work from the office five days a week. Remote, hybrid, or relocation candidates will not be considered. You will work across frontend, backend, infrastructure, and AI systems, collaborating with founders to turn ideas into production-ready applications, and to shape the