About Jerywin Bayawan

Jerywin Bayawan is a Full-Stack Software Developer focused on building practical, scalable, and reliable software solutions for real-world business operations. His work covers the full development lifecycle, from designing user interfaces and backend architecture to developing APIs, databases, integrations, and production-ready applications.

Full-Stack Development

His experience covers both frontend and backend development, working with technologies such as React, TypeScript, JavaScript, Node.js, PostgreSQL, Redis, Tailwind CSS, and Docker.

He uses these technologies to build:

Modern web applications
REST APIs and backend services
Real-time application features
Data-driven business systems
Responsive user interfaces
Scalable application architectures

Systems and Business Solutions

Jerywin has contributed to and developed software for different business and operational areas, including:

HRIS, payroll, and attendance
Property and rental management
Payment and collection management
Restaurant ordering and POS
Inventory management
Fleet and hauling operations
Content management systems

These projects have provided practical experience in translating business requirements into software that helps organize information, simplify workflows, automate processes, and support daily operations.

Development Approach

His development approach focuses on maintainable architecture, secure APIs, database design, application performance, and responsive user experiences.

Rather than developing features only for technical complexity, Jerywin focuses on understanding the operational problem behind each requirement and building solutions that remain practical and maintainable as the system grows.

Projects and Technical Writing

Through this portfolio, Jerywin shares his software projects, development experience, technical guides, and lessons learned while building real-world applications.

His work reflects an ongoing interest in improving how software is designed, developed, secured, deployed, and maintained while using technology to solve practical business problems.

Keep exploring

Related work

Project

Mining & Hauling ERP Management System

The Mining & Hauling ERP is a comprehensive business management platform designed to centralize the daily operations of **hauling, mining support, and heavy-equipment businesses**. The system provides structured **master data management** for employees, clients, equipment, addresses, billing rates, payroll profiles, and system users. Operational modules handle **dump truck trip tickets, equipment tickets, ground staff attendance (DTR), standby records, fuel monitoring, inventory, and business expenses**. Integrated **billing and collections** functionality allows operational records to be processed into client billings while providing tools for monitoring collections and financial activity. The platform also includes a dedicated **payroll system** supporting payroll runs, employee allowances, deductions, cash advances, benefits, and configurable payroll profiles. For administration and security, the ERP includes **role-based access controls and audit trails**, helping restrict functionality based on user permissions while maintaining records of important system activities. The platform provides a centralized workflow from **field operations and equipment activity to billing, collections, payroll, and management reporting**, reducing reliance on disconnected manual processes and improving operational visibility. **Core Modules:** Trip Tickets, Equipment Operations, DTR, Fuel Monitoring, Inventory, Expenses, Billing, Collections & Payroll **Frontend:** React.js, Tailwind CSS, Shadcn UI **Backend:** Node.js, Express.js **Database:** PostgreSQL **Project Type:** Mining, Hauling & Heavy Equipment ERP