The Challenge
B2B companies face operational friction when coordinating client proposals, time sheets, expense receipts, invoicing, and subscription renewals across different software packages. The client required an all-in-one financial dashboard that handles multi-currency invoicing, manages recurring billing, tracks time/expenses, and facilitates instant payments with zero setup cost.
The application required absolute security (as it manages invoicing details), precise financial calculations down to the cent, automatic email reminder triggers, and compliant PDF invoice generation.
The Solution
We developed a secure, multi-tenant billing engine with multi-currency conversion modules supporting 150+ global currencies. We integrated Stripe API payment endpoints, allowing customers to pay invoices instantly via credit cards or bank transfers using Stripe Elements inside a dedicated, brand-customized client portal.
We built a robust cron task scheduler that processes recurring subscription cycles, generates automated PDF receipts using clean server-side rendering, and fires follow-up notifications when payment deadlines are breached.
Technical Architecture & Highlights
A multi-threaded background cron runner processes subscription records every hour, drafting invoices, running card charges, and emailing receipts automatically.
A clean, unauthenticated client gateway containing a details invoice summary and embedded Stripe billing widgets for secure payment collection.
Built-in stopwatch timers and expense upload managers allow freelancers and teams to log billable units and pull them directly into invoice drafts.
Integrates real-time exchange rates, allowing merchants to quote proposals and compile line items in client currencies while settling payouts locally.