Full Stack AI Engineer

Stack

Responsibilities

• ▹Build working prototypes of agentic AI applications, LLM workflows, and full-stack products
• ▹Experiment quickly across frameworks, open source tools, and low-code stacks
• ▹Interface directly with product thinkers and founders to distill ambiguous ideas into testable code
• ▹Contribute to shared internal libraries (Infinity Commons) and add features to Gravity, the software factory platform
• ▹Occasionally embed with portfolio companies to support launches or unblock execution

Requirements

• ▹Fluency in Python and experience using AI toolkits and APIs
• ▹Experience rapidly building and iterating on proof-of-concept or MVPs
• ▹Comfort using a blend of commercial APIs, open source, and low-code tooling to get things done
• ▹Strong problem-solving skills and analytical intuition

Nice to have

• ▹Prior work with AI agents and familiarity with what it takes to make them work well in production
• ▹Experience with frontend development (React, Next.js)
• ▹A background in a STEM discipline, data science, or quant-heavy engineering, with measurable impact
• ▹Previous experience in a venture-backed startup or technical founder role

Soft skills

About the company

Infinity is a holding company building full-stack AI businesses, supporting its portfolio companies with rapid prototyping, flex capacity, and its in-house software factory, Gravity.