Hotdata, Inc Sr. Full Stack Agent Engineer San Francisco, CA · Full time

Apply for Sr. Full Stack Agent Engineer

We’re an early-stage, VC-backed startup at the intersection of data systems and agentic AI. Founded by three experienced engineers and product leaders, we’re building an agent-first product at the intersection of data systems and developer platforms. We combine modern data systems, vector indexing, and RAG techniques to give agents instant, intelligent access to enterprise data - without the complexity of traditional data pipelines. We’re an early team solving hard distributed systems challenges with cutting-edge technologies (DataFusion, Arrow, Rust, cloud-native infra). If you want to shape the foundation of a new compute layer for AI agents, this is the place.

Location: San Francisco Bay Area (Hybrid or In-Office)

Experience: 5–7 years

Company Stage: Stealth, VC-backed

Employment Type: Full-time

About the Role

We’re looking for a Senior Full-Stack Agent Engineer who’s excited about building data-centric AI products in Python and/or TypeScript. In this role, you’ll work directly with the founders to design and build the full end-to-end AI product experience from user-facing interfaces to agent workflows and integrations.

If you thrive in zero-to-one environments, care deeply about product quality, and want significant ownership, you’ll fit right in.

Our core technologies include Python, Rust, and Kubernetes.

What You’ll Do

• Build and own full-stack features end-to-end across frontend, backend, and agent layers
• Develop agentic workflows and integrations using tools like LlamaIndex or LangChain
• Create intuitive developer-facing experiences and interfaces
• Help define engineering best practices, architecture, and culture as an early technical leader
• Collaborate closely with founders on product direction, UX, and customer feedback loops

What We’re Looking For

• 5-7 years of software engineering experience
• Strong full-stack engineering background
• Deep experience with:
• Frontend: React
• Backend: Python
• AI Stack: LlamaIndex and/or LangChain
• Experience working with cloud infrastructure (AWS or GCP)
• Strong understanding of:
• System design & scalability
• Data modeling
• Security and privacy best practices
• Comfortable operating in fast-moving, ambiguity-heavy, zero-to-one environments
• Product-driven mindset with strong user empathy

What We Offer

• Base Salary Range: ~$150K-$180K per year
• Additional Compensation: Eligible for discretionary equity options
• Benefits: Competitive benefits package

Final compensation will depend on skills, experience, market conditions, and location.

Why Join

• Founding-level ownership and long-term upside
• Work directly with the founders on product, architecture, and engineering strategy
• High agency, high impact: shape the product, engineering culture, and customer experience from day one
• Build category-defining technology at the frontier of data and agentic AI