Infinity Constellation
Infinity Constellation

Full Stack AI Engineer

July 3, 2025
Full-time
Remote · New York, NY
Entry level
Front-end Developer
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AI Engineer (Contract-to-Hire)

Location: Remote (Global)

Start Date: Rolling

Compensation: $75/hour for first 4 weeks (contract-to-hire trial)

About The Project

We're building AI-native engineering team within Infinity, a holding company building full-stack AI businesses. We support portfolio companies by:

  • 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

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.

The Role

We’re looking for scrappy, sharp, execution-focused engineers who thrive in high-context, high-autonomy environments. You'll be deployed on fast-moving projects—from validating ideas in one-week sprints to helping scale production tools inside early-stage companies.

This is a contract-to-hire role. The first month is a paid trial at $75/hour. If there’s mutual fit, you’ll transition to a full-time or retainer-based role within the core team.

What You’ll Do

  • 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

What We’re Looking For

Required:

  • 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

Bonus Points:

  • 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

How We Work

  • 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

How to Apply

Send us:

  • 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.