Full-Stack Developer: Unlock Local Trade Through Smart Exchanges

The Impact

Help us solve the "last mile" problem that's holding back community economies. When a graphic designer wants to trade services with a caterer, they shouldn't need complex logistics—just a seamless handoff. You'll build the in-app features that turn these business connections into actual transactions, multiplying the volume of cash-free exchanges and strengthening local supply chains.

The Challenge

Right now, businesses match on involveMINT but struggle to coordinate the final exchange. Your work will bridge this gap by implementing intuitive UX flows that guide Business A and Business B through every step—from initial agreement to successful delivery—all without leaving the platform.

The result? More small businesses trading services without cash. More sustainable local economies. More proof that mutual credit systems work.

What You'll Build

You'll implement a professionally-designed exchange orchestration system that includes:

Structured exchange flows for the three critical elements: cost, delivery method, and payment terms

Smart confirmation systems that minimize negotiation friction while maintaining flexibility

Progress tracking so both parties always know what's next

Integrated messaging for edge cases, with structured flows as the default

The UX designs are complete (created in partnership with Develop for Good), so you'll focus on bringing them to life in our modern tech stack.

Your Tech Playground

Modern, production-ready stack:

Frontend: React Router v7 (Framework Mode) + Tailwind CSS

Backend: PostgreSQL with Prisma ORM

Infrastructure: Fly.io via Docker

Integrations: Clerk (auth), Cloudinary (images)

You'll have support:

Software development board member for technical guidance

Active volunteers familiar with the codebase

Complete UX specifications ready for implementation

Existing design system to follow

Who Thrives Here

You're a great fit if you:

Love building features that directly impact real people and businesses

Enjoy implementing well-designed UX flows with attention to detail

Have experience with React, TypeScript, and modern web development

Want to contribute meaningfully without the pressure of starting from scratch

Believe in alternatives to traditional economic systems

Bonus points for:

Experience with transactional flows or marketplace features

Familiarity with mutual credit or community currency systems

Interest in cooperative economics or regenerative business models

Time Commitment

Flexible—work fits your schedule. This is a high-impact feature that could range from a focused sprint (10-15 hours) to ongoing contributions as you have capacity.

Why This Matters

Every exchange you enable represents:

A small business meeting a need without spending cash

Stronger relationships in the local business community

Proof that mutual credit systems can scale

One more step toward sustainable, community-driven economies

Ready to turn connections into real economic activity? Join us in building the infrastructure for a new kind of marketplace—one where businesses thrive by supporting each other.