PumaCon Enterprise E-Commerce & Internal ERP Platform
Integrated full-stack web ecosystem combining an industrial construction machinery marketplace with role-based internal ERP administration.
Overview
CV. Putra Manunggal (PumaCon) previously relied on conventional marketing and error-prone manual inventory spreadsheets for industrial construction machinery and spare parts. Engineered as a full-stack solo development project, this platform bridges a public e-commerce catalog with an internal ERP administrative dashboard. The system automates industrial equipment inquiries, streamlines procurement checkouts, and centralizes operational control across inventory, order fulfillment, and multi-department administration.
Challenges & Solutions
Architecting a dual-faceted industrial portal solo presented intricate data synchronization and operational integrity challenges:
Maintaining transactional consistency between public storefront stock counters and internal warehouse inventories to prevent stock desynchronization.
Designing high-ticket B2B checkout verification flows capable of handling complex invoice confirmations across multiple operational stages.
Writing efficient relational Golang database handlers to manage interconnected schemas involving products, procurement orders, staff, and departments.
Key Responsibilities
Architected and engineered the complete full-stack web application solo utilizing React.js, Golang RESTful micro-services, and PostgreSQL
Built the customer-facing commercial portal featuring secure authentication, multi-category industrial equipment browsing, cart state, and order tracking
Developed a role-based administrative ERP dashboard managing multi-tier order lifecycles, real-time inventory adjustments, and corporate publishing
Designed relational PostgreSQL schemas structured for high-value machinery transactions, internal corporate departments, and employee hierarchies
Adopted the Scrumban agile workflow and executed functional verification utilizing blackbox, whitebox, and usability evaluation methodologies
Result & Outcomes
The deployment of the PumaCon web ecosystem modernized commercial reach and internal workflows for CV. Putra Manunggal:
Transitioned 100% of legacy paper-based spare parts and equipment logging into an automated, relational PostgreSQL architecture.
Expanded direct digital visibility for heavy construction machinery toward nationwide contractors across commercial tiers.
Successfully delivered a full-stack production platform within schedule through structured Scrumban sprint executions.
Lessons Learned
Managing the complete software lifecycle solo provided fundamental insights into full-stack architecture and enterprise systems design:
Unifying consumer marketplaces with internal administrative ERPs necessitates strict backend middleware authorization boundaries from day one.
Early normalization of relational database structures is critical to avoid cascading schema anomalies as organizational hierarchies scale.
Technologies Used
React.js
PostgreSQL
Go
Bootstrap
Key Features
Industrial Machinery Marketplace — Digital equipment showcase detailing machinery series (Batching Plants, Stone Crushers) and critical spare parts.
Streamlined B2B Checkout — Integrated procurement pipeline featuring persistent cart state, bank transfer invoicing, and real-time shipment status tracking.
Role-Based Operations Dashboard — Administrative console enabling instant status updates across transactional pipelines from pending to fulfillment.
Integrated Catalog & News CMS — Centralized CRUD management for industrial inventory adjustments, technical specification updates, and corporate PR blogs.
Multi-Department Workforce ERP — Internal directory module organizing customer registries, corporate departmental structures, and staff assignments.
Customer Account Portal — Self-service client area managing delivery destination addresses, past billing receipts, and account authentication settings.