developoment
CRM - Customer Relationship Management System
A business CRM that brings customer records, sales pipelines, campaigns and follow-up activities into one role-aware workspace.
- Role
- Front End Developer
- Timeline
- 2026
- Product
- Internal business CRM
- Status
- Live and actively maintainedLive
- Stack
Story
The problem
Customer information and sales follow-ups were difficult to manage across separate records and workflows. The team needed one place to track prospects, relationships, deals and daily activities.Customer records and sales follow-ups needed one organized, shared workspace.
What I built
A responsive CRM interface for managing leads, contacts, accounts, deals and campaigns. It also includes dashboards, advanced filters, CSV imports, activity tracking and a drag-and-drop Kanban workflow.A CRM for leads, contacts, accounts, deals, campaigns and sales activities.
What I learned
Building related CRM modules highlighted the importance of reusable data tables, predictable filters and consistent detail views. Role-aware navigation also kept the product focused for each type of user.Reusable workflows and role-aware navigation made a complex CRM easier to use.
Screens
Customer records and contact management 
Campaign type management
How a request moves
The React application sends authenticated requests to a NestJS API, where access rules and validation are applied before CRM records are stored in MySQL.
React Front End
Role-aware views, forms, tables and Kanban workflows
NestJS API
Authentication, authorization and business validation
MySQL
Customers, deals, campaigns and activity records
HTTPS + JWTJSON
SQLrecords
React Front End
Role-aware views, forms, tables and Kanban workflows
- HTTPS + JWT ↓
NestJS API
Authentication, authorization and business validation
- SQL ↓
MySQL
Customers, deals, campaigns and activity records
Outcome
- 2role-specific application experiences2user roles
- 6core customer and sales modules6core modules
- 4activity types managed in one place4activity types
- 1shared workspace for the sales lifecycle1sales workspace
The live portfolio links only to the customer-facing CRM. Private infrastructure and source repositories are not exposed.Private infrastructure and source code are not exposed.
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