Remote Full-Stack AI Engineer - Contract-to-Hire

Constella Care; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Infinity is assembling an AI-native engineering team to build agent-driven products. We focus on rapid prototyping of AI applications, LLM workflows, and full-stack features across our portfolio companies.

As a contract-to-hire engineer, you’ll work on fast-moving projects, validating ideas in short sprints and scaling production tools. Remote role with EST-friendly hours and a path to full-time within the core team.

Qualifications

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

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 ideas into testable code.
• Contribute to shared internal libraries and feature Gravity, our software factory platform.
• Occasionally embed with portfolio companies to support launches or unblock execution.

Skills

Python

POC/MVPs

APIs & AI

Frontend basics

Tools

LLM frameworks

Job description

Infinity is assembling an AI-native engineering team to build agent-driven products. We focus on rapid prototyping of AI applications, LLM workflows, and full-stack features across our portfolio companies.

As a contract-to-hire engineer, you’ll work on fast-moving projects, validating ideas in short sprints and scaling production tools. Remote role with EST-friendly hours and a path to full-time within the core team.