Senior Software Engineer at YC-backed AI startup for global commodities

Job Description

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Software Engineer

Salary

Not Disclosed

Company Description

YC-backed AI operating system for the global commodities industry funded by Rebel Fund and the founders of YouTube and Reddit

Job Description

You will own core technical pillars of an operating system managing billions in transaction value for the global energy, metals, and agricultural sectors. Working directly with the founders, you'll architect agentic systems and data pipelines that transform unstructured trade data into deterministic insights, scaling a platform currently approaching Series A.

Location

San Francisco, USA

Why this role is remarkable

Direct impact on the global commodities industry, building the digital infrastructure that moves the world's physical energy and agricultural resources.
Backed by elite investors including Y Combinator (W24), Rebel Fund, and the founders of YouTube and Reddit, with strong revenue growth heading toward Series A.
High-trust, low-bureaucracy environment where you have a direct seat at the table with the founding team to solve complex, real-world logistical problems.

What You Will Do

Design and scale robust backend APIs and data pipelines processing billions of dollars in commercial contract value.
Architect production-grade AI agentic systems and structured extraction pipelines to turn chaotic PDFs and emails into reliable data.
Execute end-to-end features across a modern stack including React, TypeScript, Python, Go, and Node to deliver clean user workflows.

The ideal candidate

6+ years of professional software engineering experience, ideally as an early contributor or technical leader at a high-growth startup.
Proven track record of deploying production AI/LLM systems, specifically focused on structured outputs, retrieval, or complex orchestration.
Strong business curiosity and the ability to synthesize messy customer context into tractable engineering work while maintaining first-principles coding fundamentals.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.