Vendor Lifecycle Intelligence

A procurement and vendor management platform covering the full purchase lifecycle — from requisition through RFQ, quotation comparison, and multi-level approval, all the way to purchase order creation. Built around a configurable workflow engine: admins can define stages, roles, and approvers per workflow without code changes.

Built the VLI module end-to-end, centered on a configurable workflow engine that lets admins define stages and assign role-based permissions for who creates RFQs, selects vendors, reviews, approves, and issues POs. Also shipped the underlying flows: requisitions, RFQ creation with editable PDF email previews, real-time quotation upload tracking via Server-Sent Events, uninterrupted background uploads, and PO creation across multiple vendors.

• Configurable workflow builder for procurement processes
• Per-stage role assignment — RFQ creators, vendor selectors, reviewers, approvers, and PO issuers
• Purchase requisition workflows
• RFQ creation and tracking
• Editable in-UI PDF preview of the quotation email sent to vendors
• Real-time quotation upload tracking via Server-Sent Events
• Uninterrupted background uploads across page navigation
• Quotation comparison UI across multiple vendors
• PO creation flows across multiple vendors

Next.js · SSE · TanStack Query

1. 01Designed a configurable workflow engine where admins define stages and assign per-stage roles (creators, reviewers, approvers, vendor selectors, PO issuers) without engineering involvement.
2. 02Built an editable PDF preview that mirrored the quotation email exactly, so users could fine-tune the request before it went to vendors.
3. 03Built an SSE-driven event stream to track multiple parallel quotation uploads in real time across the UI.
4. 04Implemented background upload support so users could navigate freely without losing in-progress uploads.
5. 05Designed a quotation comparison UI that handled wide tables with varying fields per RFQ.

Deepened my understanding of real-time event streams, robust upload patterns that survive navigation, and designing configurable systems that hand workflow control to non-engineering users without code changes. Beyond the engineering, this project gave me a real grounding in how enterprise businesses actually operate — the workflows, approvals, and process depth you only learn by shipping production systems for real users.