⚡KLAVIYO·AI BUILDER RESIDENCY·BOSTON HQ
Applications Open Apr 17 – Apr 27

Builders
Wanted.

No resume required. No cover letter. Just show what you can build. The Klaviyo AI Builder Residency — a 12-month, full-time program for people who build with AI because they can't help it.

Apply NowWhat is Builder Day? ↓
5Spots in the
inaugural cohort
1 YRFull-time
residency
BOSKlaviyo HQ
Summer Street
The Main Event

This is your audition.
Builder Day is the stage.

Forget phone screens and take-home assignments. The top applicants are invited to Klaviyo's Boston HQ for Builder Day — a live, Shark Tank-style competition where you present what you've built directly to Klaviyo's R&D leadership, including our co-founder.

Your build. Your stage.

You get the floor.

Round 1: Walk Klaviyo leaders through your personal project — why you chose the problem, how you built the solution, where AI helped and where it got in your way. This isn't a whiteboard exercise. You drive the conversation about something you actually made. Strong builders advance to Round 2.

Round 2: A vibe coding competition using Klaviyo's best-in-class AI tools. Present your solution to a panel of judges. Showcase your creativity in how you problem solve — your builder mindset. Perfection isn't the point — your thought process is.

Demo to decision-makers.

You're not presenting to a recruiter as step one of a five-step process. You're presenting directly to the people who run R&D, engineering, and AI at Klaviyo.

The kind of access most people don't get until they've been at a company for years. You get it before day one.

Apply for Your Spot →
Live Event

Klaviyo
Builder Day

Boston HQ · May 8, 2026

Apply for Your Spot →
▸The BriefWelcome from Klaviyo
▸The WalkthroughDemo your project with Klaviyo leaders
▸The BenchCultural conversations + lunch with teams
▸The CompetitionLet your builder skills shine
▸The SharksPresent to a panel of judges
▸Offers Within DaysIf you're in, you'll know fast
What You're Auditioning For

This isn't an internship.
It's a residency.

The Klaviyo AI Builder Residency is a full-time, 12-month program where you're embedded directly with teams across Klaviyo — building AI-powered tools, automations, and agent workflows that solve real business problems. Not a sandbox. Not a simulation. Production systems, real users, actual stakes.

You'll work alongside our R&D and AI leadership, ship code from week one, and help teams across the company go from curious about AI to fluent in it. If you're the kind of person who builds things on nights and weekends because you can't help it — this is your full-time job for a year.

How It Works

Skip the cover letter. Record a Loom.

01

Record & Submit

Apply via Greenhouse. Submit a 5-minute Loom video walking through something you've built. Include your GitHub repo, a README, and a written reflection.

Apr 17 – Apr 27
02

We Review

Our builders committee reviews every submission. We're looking for craft, curiosity, and builder instinct — not pedigree. ~25 finalists are selected.

Apr 27 – May 1
03

Builder Day

You come to Klaviyo HQ in Boston. Demo your build to R&D leadership. Live code walkthrough. Cultural conversations. Competition.

May 8, 2026
04

Offers Within Days

If you're in, you'll know fast. Up to 5 builders join the cohort starting June 2026.

May 2026
Who This Is For

We don't care about your degree. We care about your demos.

This program is for builders — people who've made something real with AI and want to do it full time at a company that takes building as seriously as they do.

The Side-Project Shipper

Recent grad whose side project got more traction than your thesis. You've been building in public and you're ready for real-world stakes.

The Career Switcher

You taught yourself to code with AI tools and built something that works. Your background is non-traditional. Your output speaks for itself.

The Builder Who's Bored

1–2 years into your career and already outgrowing your current role. You want to build with AI full-time at a company that takes it as seriously as you do.

The Student Builder

Currently in school but shipping real things — not just assignments. You want reps, not lectures.

What You Need

The bar is your work, not your resume.

Required

  • You've built something real with AI that you can demo and explain
  • Builds should be complex and/or solve an interesting problem. Submissions should be more than just a web page
  • Comfortable using AI-assisted coding tools to develop and iterate
  • Working knowledge of Python and/or modern scripting tools
  • Available on-site in Boston (3+ days/week) for the full year
  • Don't require visa sponsorship now or in the future

Nice to Have

  • Experience with agentic AI workflows
  • Exposure to RAG systems, embeddings, or vector databases
  • API integrations or cloud platform experience
  • Familiarity with LLMs, APIs, and prompt engineering
  • Full-stack or frontend development exposure
Key Dates to Know
4/17
12:00 AM ET
Applications Open
4/27
9:00 AM ET
Applications Close
5/1
All Day
Finalists Notified
5/8
All Day · Boston HQ
Builder Day
6/22
Boston HQ
Start Date
The Details

Everything you need to know.

Location
Boston, MA — Klaviyo HQ
Duration
1 Year, Full-Time
Compensation
$120,000 salary + equity + sign on
Start Date
June 22, 2026
Application Window
Apr 17 – Apr 27, 2026
End-of-Year Paths
Continue as an AI Builder, Transfer teams, or Mutual Close

Ready to build?

A 5-minute Loom video of something you've built, a GitHub repo, and a short written reflection. That's it. No cover letter. No trick questions. Just show us what you've got.

Apply Now →
Applications close April 27, 2026
Questions? builders@klaviyo.com