Mickey Mullin – Portfolio

Senior Full-Stack Developer

Money@ – Financial Management Platform

Money@ is a financial planning application built with PostgreSQL, Elysia/Bun backend (TypeScript), and NuxtJS/Vue.js frontend (also TypeScript). The platform handles complex budgeting algorithms, income-to-expense alignment, and cash flow projections.

Originally focused on debt management, recently evolved to serve business budgeting needs. Technical architecture remains the same: complex financial calculations, multi-tenant database design, and real-time cash flow projections.

As solo developer, I built this full-stack solution demonstrating modern JavaScript/TypeScript stacks, database design for financial data, and production-ready authentication and RBAC systems.

Intelligent paycheck-to-expense alignment, real-time available funds calculation, and debt elimination timeline
17 tables modeling complex multi-tenant fintech domain, including generated columns for auto-calculated fields like full names
TypeScript algorithm powers budgeting; integrates DB ops and utils for shortfalls and edge cases like rollovers
Enterprise-grade auth system with JWT, guards, and session management for Money@’s multi-tenant design
Intelligent paycheck-to-expense alignment, real-time available funds calculation, and debt elimination timeline
17 tables modeling complex multi-tenant fintech domain, including generated columns for auto-calculated fields like full names
TypeScript algorithm powers budgeting; integrates DB ops and utils for shortfalls and edge cases like rollovers
Enterprise-grade auth system with JWT, guards, and session management for Money@’s multi-tenant design

X-Thread: Smart Twitter Thread Composer with Auto-Split Algorithm

Smart X/Twitter thread composer with intelligent text-splitting algorithm that breaks content at optimal boundaries, starting with sentences. Previews threads in real-time, with a short debounce delay to smooth interface changes. Features always-on character counting, auto-save drafts, and dual React/Vanilla JS implementations. Solves the manual character counting frustration when going over the 280-character limit.

Composer on left, resulting thread auto-generated on right
Smart boundary detection: sentences → paragraphs → lines → words
UI feedback cancelable by other events
Resilient draft storage, local to browser
Composer on left, resulting thread auto-generated on right
Smart boundary detection: sentences → paragraphs → lines → words
UI feedback cancelable by other events
Resilient draft storage, local to browser
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