Summer Builders Challenge, Open

BUILD THE FUTURE.
SHIP IT WITH DOO.

A competitive builder program. AI-first. Best outputs ship.

25
BUILDERS IN PHASE 1
10
GRADUATE TO PHASE 2
5
HIRED FULL-TIME
AI-FIRST
BEST OUTPUTS SHIP
Unlimited Claude & OpenAI credits
DOO Builders League badge
Step 01

Apply & Profile

Forget resumes. Build a builder profile focusing on your AI stack and portfolio.

Step 02

24h Screening

A mini-challenge to test how you solve problems using AI agents and logic.

Step 03

Matching

Our matching engine assigns you to the best challenge based on your skills.

Step 04

Ship & Scale

Phase 1 builders ship plugins. Top builders graduate to Level 2 (SDKs/MCPs).

The Challenge Tracks

Pick your arena. Master your integration.

Track A

Ecommerce Connectors

Turn ecommerce stores into interactive, voice-driven storefronts. Shoppers ask, compare, and check out by talking, your plugin does the rest.

Connectors
WooCommerce
Wix
Squarespace
Salla
Zid
You will ship
  • Voice-shopping product widget
  • Conversational checkout flow
  • Merchant analytics dashboard
Stack
ReactWebhooksOAuthRealtime voice
Timeline4 weeks · ship to App Store
Track B

Productivity Flows

Make documents and workspace pages interactive. Users navigate, edit, and act on content with AI voice, hands-free knowledge work.

Connectors
Notion
Google Docs
Google Slides
PowerPoint
Word
Canva
You will ship
  • Voice-controlled Notion pages
  • Spoken Google Docs editing
  • Canva brief automations
Stack
TypeScriptNotion APIWorkspace SDKsRealtime voice
Timeline4 weeks · published integration
Track C

CRM Connectors

Two-way sync of contacts and conversations between the DOO unified inbox and the CRMs sales teams already trust.

Connectors
HubSpot
Salesforce
Zoho
Odoo
Genesys
Freshsales
You will ship
  • Two-way contact sync
  • Conversation + activity mirroring
  • OAuth + webhook lifecycle
Stack
NodeOAuth 2.0REST + GraphQLPostgres
Timeline4 weeks · partner-listed connector
Level 2 · Elite builders only

Build the DOO SDKs & MCP Servers

Phase 1 ships plugins. Phase 2 ships the platform underneath, typed SDKs for every major client runtime, and MCP servers that plug DOO into the AI coding tools developers already live in. Focus is building + developer docs & tooling. No production hardening.

SDK

Client SDKs

Design and ship the public surface across the four runtimes developers actually build on. Same ergonomics, idiomatic per platform.

ReactJavaScriptReact NativeFlutter
MCP

MCP Servers

Expose DOO as tools AI coding agents can call directly, so devs wire DOO into their app from inside their editor or agent.

Claude CodeCodexCursorOpenAI Codex
DOCS

Developer docs & tooling

Quickstarts, typed examples, CLI helpers, and reference apps. If a dev can't ship in 10 minutes, it's not done.

QuickstartsExamplesCLIReference apps
Timeline
4 weeks
Cohort size
10 builders
Mentor
DOO core team
Output
SDKs + MCPs + docs
Phase 2 → Full-time

Graduate Phase 2.
Get hired at DOO.

Builders who complete Level 2 and ship a production SDK or MCP server are fast-tracked for full-time offers, engineering, AI, and product roles at DOO. No interview gauntlet. Your build log is your résumé.

Hires
Up to 5
Of 10 Phase 2 builders
Roles
Eng · AI · Product
Full-time, remote-first
Equity
Yes
From day one
Onboarding
Day 1 ship
Your code already lives in prod

The Build Log Rule

We don't just allow AI. We require it. You will submit an AI Usage Log for every commit, documenting how you prompted, debugged, and collaborated with LLMs.

01
Architecture Prompts

Show how you mapped the integration logic using AI.

02
Refactoring Cycles

The process of cleaning AI-generated code for production readiness.

// build-log.jsonl
{ "step": "plan",  "tool": "claude-3.5", "tokens": 1840 }
{ "step": "scaffold", "tool": "cursor",    "files": 12 }
{ "step": "debug-oauth", "tool": "claude", "fix": "redirect_uri" }
{ "step": "tests",  "tool": "copilot",    "coverage": "78%" }
{ "step": "readme", "tool": "claude-3.5", "sections": 6 }
ClaudeCursorCopilotLovable