Full Stack AI Engineer
Posted 439 days ago, which is unusual. The employer's own board was still carrying it when we last read it, 3 hours ago.
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 1h ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 439d ago
The date the source published, not the day we noticed it (2025-07-02). Last seen at its source 3h ago.
Is it remote?
Remote
That is the location the employer filed this posting under. Quoted as written — we do not re-word the source's own location.
Who may apply?
Not stated
The description states no restriction of its own. This is the source's own tag.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
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ashby employer's own board first seen 11d ago · last seen 3h ago
The listing
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.