AI Engineer

AI Engineer

TL;DR:

• Build the AI agents that run marketing for brands like AG1, Harry's, Grüns and Liquid I.V.
• $5M ARR, 5x'ing this year, consistently cash-flow positive, YC-backed
• In person in Lehi, UT

What is Zaymo?

Zaymo builds the tools AI agents use to do marketing, for the largest ecommerce brands in the world. ~500 brands, including Grüns, Harry's, AG1 and Liquid I.V. (Unilever), run on Zaymo.

Our wedge is interactive email. We made emails work like websites: shoppers buy, swap or skip a subscription without leaving the inbox. It closes 75%+ of the brands we pitch and put us inside the email programs of hundreds of the best brands in ecommerce. (That's what you'll see on our website today.)

What's next is agents. Brands pay agencies ~$70k a year to run email, and the good ones run one or two tests a month. Our agents audit the program, write and design on-brand campaigns, QA them, and run hundreds of experiments optimized for profit, not just revenue. We build for the agent a marketer already uses (Claude, via MCP), not yet another chatbot.

Why Zaymo?

• 🚀 Growth: $5M ARR today, on track to 5x this year and reach $20M next year
• 🏦 Efficient: Raised ~$2M and consistently cash-flow positive. We never need to raise to stay alive.
• 📦 Real scale: 100M+ orders a year flow through our brands, and tens of millions of shoppers interact with Zaymo emails every month
• 🛠️ Team: 19 people (ex. Harvard, Cornell, NASA, Route, Weave, Levo), backed by Y Combinator and the co-founder of YouTube

What you'll build

• Agents that audit a brand's email program and find where revenue is being left on the table
• Creative agents that write and design on-brand campaigns from a brand's voice, products and past performance
• QA agents that check content, links, audiences, discounts and timing before anything ships
• An experimentation engine that runs statistically sound LTV tests and learns what actually drives profit
• MCP tools that let Claude (and any agent) take real actions in Klaviyo, Shopify and our platform
• Evals that tell us when an agent is good enough to trust with a brand's revenue

Stack: TypeScript end to end: React Router, Supabase/Postgres, ClickHouse, Vercel, AI SDK, Claude, MCP.

What would make you stand out?

Required:

• Strong programming skills, especially TypeScript
• You've shipped real software, full-time or through serious side projects (new grads with real projects welcome)
• You've built with LLMs and have opinions about what works
• Ability and willingness to work in person in Lehi, UT

Preferred:

• Shipped LLM or agent features to real users
• Full stack experience at early-stage startups (ideally owning a product or feature 0→1)
• Stats or data engineering background (experiments are core to what we build)
• Positive attitude, love for building, and always learning

What are the perks?

• Competitive salary and meaningful equity
• Health insurance 100% covered for you and your family, plus dental and vision
• Catered lunch every day, Monday through Friday
• Unlimited paid time off
• $100/month ecommerce stipend to shop our customers' brands
• On-site gym, showers and pickleball courts
• We cover relocation to Utah

What is your interview process?

• We review your materials (application, resume, past projects, GitHub).
• We do a 20-minute intro call over Zoom to make sure we're on the same page.
• We give you a take-home assignment to see how well you build (should take ~3-5 hours).
• We do an on-site in person to talk through what you built.
• We give you a decision within a week.

How can I get looked at fast?

When applying, instead of a cover letter, include concise, no-fluff answers to the following questions:

1. How did you hear about Zaymo?
2. Why did you decide to apply?
3. What is the most impressive / interesting thing you have built?
4. Link something you've built with LLMs or agents.

Read more about working at Zaymo here.

The salary range for this role is $80,000 to $130,000, plus 0.10% to 0.50% equity. This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. This compensation range may also be modified in the future.

As an equal-opportunity employer, we are committed to building an inclusive environment where you can be you. We work hard to evaluate all employees and job applicants consistently, without regard to race, color, religion, gender, national origin, age, disability, pregnancy, gender expression or identity, sexual orientation, or any other legally protected class.