Arrafund · Built by Doug Morgen

Engineering a financial platform from the ground up.

Arrafund tracks purchases, attributes them to creators, calculates earnings, and supports withdrawals. As its founding engineer, I built the application from the ground up: the Rails architecture, customer-facing product, financial integrations, background processing, administrative tools, and production deployment.

Creator dashboard

What I built

Purchase and transaction processing

I integrated Plaid to ingest bank and card transactions, including additions, changes, and removals. I built the purchase records and processing that turn those external events into activity the application can evaluate and credit.

Commerce attribution

I built tracked purchasing links and Shopify order ingestion, connecting orders to creators and calculating commissions. Duplicate order notifications cannot credit the same purchase twice.

Creator wallet and withdrawals

I built the wallet around available and pending earnings, withdrawal requirements, bank-account setup, and recent activity. I integrated Wise for recipient creation and multi-currency transfer initiation.

Operational tooling

I built admin screens to inspect bank connections and transactions, review purchase claims, approve or reject them, and enable or pause withdrawals.

Production system

I designed the Rails application and PostgreSQL data model, used background jobs for asynchronous integration work, and deployed and operated the production system.

The operating side

Arrafund admin dashboard linking to funds, transactions, bank connections, creators, events, campaigns, and receipt submissions — I built the admin tools behind the product, from transaction and bank-connection review to receipt submissions, creator records, and campaign controls.

Customer-facing product

Arrafund homepage showing the friend request and creator earnings flow — The public entry point explains how a request to a friend can become creator earnings.

Wallet and withdrawals

Arrafund wallet showing available and pending balances, withdrawal requirements, recent activity, and bank-account setup — Creators can see what is available, what is pending, the rules for withdrawing, and how to connect a withdrawal account.

Built end to end

Arrafund wasn't an integration added to an existing product. I built the application itself: customer experience, data model, financial and commerce processing, administrative systems, background jobs, and production infrastructure.

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