MatBook: B2B construction procurement

MatBook: B2B construction procurementOne system for orders that used to live in Excel, Google Drive and WhatsApp.Role: Senior Product Designer · 2025 · Designer: Vishwas J KashyapMatBook sources bulk construction material for businesses, across vendors, logistics partners and customers. I led product design from V1 to V10, turning a business run on spreadsheets and WhatsApp into one order management platform for sales, operations, finance and customers.

300+ screens across 50+ flows

V1→V10 releases I led

~50% less time on documents and follow-ups (team estimate)

~40% faster design iteration with AI (my estimate)

The real problemThe software was the easy part. The real problem was dependency on the few people who knew where everything was. Teams trusted their spreadsheets and WhatsApp groups, so any new tool had to be faster than those workarounds, or nobody would switch.DecisionsOne order record, read differently by each roleI structured the platform around a single order entity (quotation → PO → packing list → container → invoice → ledger) and gave each role a view of the parts it acts on.Fast and clear over good-lookingDense tables and detail views that are quick to read, actions in the same place at every order stage, and fewer steps for the things people do fifty times a day.Automate the paperwork people hated mostAutomated document flows for invoices and quotations, internal notifications, and a responsive customer portal so customers could check status themselves.Ship in versions, learn from real usageRelease in versions (V1 to V10) and treat real usage and internal feedback as the research for the next version.What shipped

Customer and vendor onboarding, quotations, POs, packing lists, order tracking and the container lifecycle

Real-time P&L and ledger modules

Dashboards, automated invoices and quotations, and internal notification flows

A responsive customer portal supporting 40+ active orders

All work · Vishwas J Kashyap, Senior Product Designer