# Full Stack AI Engineer at Infinity Constellation

> Remote · region unclear · Unspecified · Full-stack · open. Source: https://alderhq.app/jobs/ashby%3Ainfinity-constellation%3A30fac65e-bcd7-4ecc-9477-fc7c8c8a9f52 (read 2026-11-05).

## Facts (observed)

- Company: [Infinity Constellation](https://alderhq.app/companies/infinity-constellation)
- Location text: Remote
- Where it can be done from (inferred): Remote · region unclear (evidence: "Remote role open worldwide")
- Posted: 2025-07-02 (491 days ago)
- First seen by alder: 2026-11-02 · last verified: 2026-11-04
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://jobs.ashbyhq.com/infinity-constellation/30fac65e-bcd7-4ecc-9477-fc7c8c8a9f52
- Skills listed (inferred): JavaScript, React, Next.js, Python, LLMs

## Pay and sponsorship

- Posted pay: not posted

## Description (the employer's text)

### AI Engineer (Contract-to-Hire)

Location: Remote (Global, EST working hours)

Start Date: Rolling

Please apply using the provided form, candidates who directly email will not be considered.

### 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 Gravity our in house software factory and agent hub that we use to build all software.

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-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. 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, 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 and add features to Gravity, our software factory platform.

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, and a deep familiarity with what it takes to make them work well in production environments.

Experience with frontend development (React, Next.js, etc.)

A background in a STEM discipline, data science, or quant-heavy engineering you'll need to be able to show the impact of your work with statistical significance

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.

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Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/ashby%3Ainfinity-constellation%3A30fac65e-bcd7-4ecc-9477-fc7c8c8a9f52 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.