Fullstack engineer with Ai integration - Remote US or Canada

Please dont apply unless you fit below.What This Client Is Actually Looking For1. A Mid-Level to Upper Mid-Level Full-Stack Engineer (NOT junior, NOT senior, NOT a manager)They repeatedly reject:“too junior”“too senior”“director level”“management-focused vs IC”Target level:5–8 years of hands-on IC engineering experienceNot junior, not leadership, not executive2. True Full-Stack, Product-Centric EngineersThey reject candidates who are:too frontendtoo backendtoo cloud/SRE/DevOpsfocused only on APIs or infrastructurenot product/feature-focusedThey want:Full-stack engineers who build customer-facing featuresHands-on experience with user-facing products, experimentation, UI backend3. Strong Startup Experience (High-Growth, SaaS, Product-Led)They consistently reject:big company engineersagency contractorsfreelancersconsultantspeople who work “for others” instead of inside a product orgpeople without startup experienceThey want:Engineers who have built software inside a high-growth tech startupPreferably 2–5 years at a VC-backed SaaS or product company4. People Who Have Worked in the USA Long EnoughThey reject:“only 1 year of USA experience”“limited experience in USA”They prefer:2 years of full-time work experience at US tech companies5. Not Too Corporate, Not Too EnterpriseRejected for:being from massive corporationslacking product-centric worknot having customer-facing ownershipThey want: Engineers used to startup environments where you ship quickly, own features, and iterate.6. Solid Internal Product Engineering — Not Agencies, Not ContractorsRejected for:agency backgroundfreelance for 16 yearsconsulting instead of building internal productsThey want:Full-time ICs who shipped and owned a product roadmap.Summary: The Ideal Candidate ProfileA 5–8 year full-stack engineer who has: Experience at high-growth startups (not big enterprise) Strong product sense customer-facing feature experience Solid backend frontend balance Full-time IC roles (not agency, not freelance, not consulting) Built internal tools, platforms, AND external user features 2 years working at US tech companies No over-seniority or management-heavy roles One-Sentence SummaryThey want a mid-level full-stack product engineer with real startup experience, US work history, and hands-on feature-building—not infra, not SRE, not enterprise, not freelancers, and not managers.The RoleThe traditional process for financing clean energy is manual, opaque, and slow. We’ve built products that solve part of that problem — now we’re expanding their breadth and depth with AI. We’re hiring our first AI Product Engineer to work hand-in-hand with customers, product, commercial, and legal teams to reimagine the way transactions happen in clean energy finance, starting with diligence.You won’t just be building features — you’ll be co-designing the processes and systems that define how we ship high-quality AI products at Crux.Much of this framework doesn’t exist yet — and you’ll help invent it using first principles.What you'll doCollaborate directly with customersBuild products from 0 -> 1Pick the tools & frameworks we useLearn an insane amount about the nuts & bolts of clean energy financeRaise the bar for our engineering cultureSkills1) 5-7 years of full-stack software engineering experience and you can build products end-to-end (frontend backend)Bonus: fluency in NextJS React Typescript stack, comfortable making UX decisions2) 1-2 years of proven experience building and shipping user-facing LLM productsBonus: you have iterated on a product through evals & CI/CD3) Ability to thrive in a fast-paced environment, startup experience4) Excellent communication skills (oral & written)Bonus: also excellent at communicating with AI (prompting)• Front-end: Typescript, React, Next.js• Back-end: Supabase, Postgres

Salary : $1 - $2