DebtStomp Decoder Web-based Financial Tool

We are building a web-based financial analysis tool called the DebtStomp Decoder for use by business loan brokers across the United States. This is a complete standalone build — there is no existing codebase to extend. The application calculates the fastest, least expensive way for a business owner to eliminate all of their debts using one or more of three methods: Debt rolldown (avalanche/snowball method — no payment increase required) Installment loan consolidation paired with the rolldown method Line of credit velocity banking — a more advanced daily-interest calculation method that models all business income flowing through the LOC to minimize interest daily, combined with the rolldown method on remaining debts The tool produces a professional, branded, printable PDF report that brokers present to clients in consultations. This report is the most important deliverable in the entire project — it must be visually compelling, chart-rich, and immediately understandable to a non-financial audience. A sample reference report from a previous version of this concept will be provided to shortlisted candidates so you can see exactly the type of output we need — modernized and dramatically improved in visual quality. The application must include: Complete debt input system with unlimited debt entries Avalanche and snowball payoff calculation engines (built from scratch) Standard installment loan consolidation module Line of credit (LOC) velocity banking module with daily interest calculation — this is the most complex part of the build and experience with financial math is essential Three-way side-by-side comparison: Do Nothing vs. Installment Loan vs. LOC Velocity Banking "What If" scenario modeling engine (minimum 5 saved scenarios per user) Investment/wealth projection module (what happens when freed-up payments go into investments) Professional PDF report generator — multiple pages, full color, charts, tables, summary boxes Broker accounts (manage multiple client profiles) and business owner accounts Cloud-based data storage — users access their data from any device Mobile-responsive UI throughout Basic admin panel Critical technical requirements: Server-side PDF generation producing print-ready, high-quality output — this is non-negotiable Charting library that renders correctly in both the browser AND the PDF (Chart.js, D3.js, Recharts, or equivalent) Daily interest calculation for the LOC module — not monthly amortization Financial calculations must be mathematically exact What we are looking for: Demonstrated experience building financial calculators or data-driven web applications Portfolio showing professional, client-facing UI/UX design Proven experience with server-side PDF generation from web applications Strong financial math capability Clear communicator — weekly updates required Ability to ask questions before building, not after Timeline: Functional v1 in 30–45 days Payment: Four milestone payments — details in the full project brief