AI Product Engineer ($150k-$250k + Equity) at Crux

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 AI Product Engineer Salary $150k-$250k + Equity Company Description Crux is a $77M-funded capital platform for the clean energy economy, backed by Andreessen Horowitz and Lowercarbon Capital. The firm modernizes capital deployment for sustainable infrastructure, having facilitated billions in transactions and achieved profitability while scaling its AI-forward engineering team to accelerate the global transition to clean energy. Job Description As the first AI Product Engineer at Crux, you will bridge the gap between engineering, legal, and finance to revolutionize clean energy transactions. You will design and ship user-facing LLM products from scratch, building the frameworks for automated diligence and complex financial workflows that power the future of sustainable infrastructure. Location Remote, USA Why this role is remarkable • Join a high-growth fintech that is already profitable and has facilitated billions of dollars in clean energy transactions over just two years. • Be the first dedicated AI hire with massive ownership over the AI stack, picking your own tools and frameworks to build 0->1 products. • Work at a mission-driven company backed by elite investors like a16z and QED, operating at the intersection of climate tech and finance. What You Will Do • Collaborate directly with customers and legal teams to co-design and build AI-powered diligence tools for clean energy financing. • Architect and ship end-to-end full-stack features using NextJS, React, and Typescript, while iterating on LLM performance through CI/CD evals. • Establish the engineering culture and internal frameworks for how Crux develops, tests, and deploys high-quality AI products at scale. The ideal candidate • 4+ years of full-stack experience with the ability to build products end-to-end, ideally with fluency in the NextJS, React, and Typescript stack. • Proven track record of shipping user-facing LLM products and AI agents, with a deep understanding of prompting and iterating via evals. • Startup veteran who thrives in fast-paced environments, possesses an 80/20 mindset, and can move from concept to execution in half the usual time. 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.