Infinity - Full Stack AI Engineer

Remote - New York, United States$156k - $156k5mo ago

Remote NA Artificial Intelligence Data Analytics AI Engineer Full Stack Engineer Full Stack Python React Next.js Vector

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 • Prior work with AI agents, vector databases, or retrieval-augmented generation (RAG) • Experience with frontend development (React, Next.js, etc.) • A background in a STEM discipline, data science, or quant-heavy engineering • Previous experience in a venture-backed startup or technical founder role • Asynchronous by default, with tight feedback loops and clear ownership • High-trust, high-autonomy culture that values shipping, learning, and iterating • Small, elite team of senior builders with experience across AI, product, and infrastructure • A short note in the application form on why this role fits you Links to past work, projects, or GitHub. • Availability to start the contract phase • We’ll move quickly. If it feels like a fit, you’ll be coding real things with us within a week.

Responsibilities

• Build working prototypes of agentic AI applications, LLM workflows, and full-stack products • Experiment quickly across frameworks (e.g. LangChain, CrewAI, AutoGen), 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 and the Infinity Commons • Occasionally embed with portfolio companies to support launches or unblock execution

Benefits

• Please apply using the provided form, candidates who directly email will not be considered. • We're building AI-native engineering team within Infinity, a holding company building full-stack AI businesses. We support portfolio companies by: • Infinity • Rapidly prototyping new product ideas to validate markets • Providing flex capacity during high-growth phases • Maintaining and evolving the Infinity Commons, our shared library of frameworks, prompts, and reusable tools • Infinity Commons • We’re not a dev shop. We’re a surgical team of builders who move fast, reduce ambiguity, and create leverage across a network of founders building with AI at the core.