LogoDarshan KC

Projects

Engineering case studies built around architecture and reliability.

These engagements demonstrate practical backend problem-solving with clear outcomes and maintainable implementation choices.

Construction Management & Enterprise Resource Planning Platform

Construction ERP System

A modular Construction ERP application that brings together construction business workflows across procurement, vehicle and bank records, insurance, tender management, project administration, billing, payments, accounting, and document management.

Problem

Construction businesses coordinate interconnected processes such as procurement, project execution, vehicle operations, tender documentation, billing, payments, and administration. When these activities are handled through disconnected workflows, information can become fragmented and it becomes harder to maintain visibility across projects and financial records.

Solution

Contributed to the development and maintenance of a Laravel-based Construction ERP application. Its business functions are organized into dedicated modules for procurement, tender and project management, billing, payments, accounting, and document handling, helping keep related operational information structured as requirements evolve.

LaravelPHPMySQLBladeBootstrapJavaScriptEloquent ORM
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Accounting & Financial Management Platform

Accounting System

A Laravel-based accounting application for managing financial records, organizing chart-of-accounts hierarchies, and supporting structured transaction workflows.

Problem

Accounting operations depend on a well-organized chart of accounts and consistent posting rules. Disconnected workflows for purchase transactions, supplier payments, ledger relationships, and journal entries can increase manual effort and create opportunities for inconsistencies.

Solution

Developed and enhanced accounting modules covering hierarchical chart-of-accounts management, ledger configuration, purchase invoice processing, and payment voucher workflows. The implementation focuses on connecting business transactions with appropriate ledger accounts and keeping financial workflows organized and maintainable.

LaravelPHPMySQLBladeBootstrapJavaScriptEloquent ORM
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Sales & CRM Platform

Sales CRMS

A modular sales CRM platform dependent on an external BC API where slow upstream responses significantly affected application performance and user experience.

Problem

The application depended heavily on an external BC API whose response times were often slow. Because critical application workflows depended on this external data, the overall system frequently experienced long loading times and frustrating user interactions.

Solution

I introduced a strategic caching layer rather than applying a single expiration time to every cache entry. Different datasets were assigned different TTLs based on how frequently their underlying data changed. I also implemented data prefetching so frequently required information could be retrieved ahead of time and stored in cache, reducing the need for users to wait for repeated external API requests.

LaravelPHPMySQLBC APICachingREST APIs
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HRMS

Human Resource Management System

A modular human resource management platform where reporting performance was a major challenge due to expensive data preparation and large datasets.

Problem

Generating and downloading reports took too long because the reporting workflow performed unnecessary processing, repeatedly handled the same data inside loops, and relied too heavily on model-level processing for large datasets.

Solution

I optimized the reporting pipeline by moving repeated data preparation outside iterative processing, replacing unnecessary model operations with query builder queries and database joins, and selectively using eager loading where relationships were genuinely required. This reduced unnecessary database and application-level processing during report generation.

LaravelPHPMySQLQuery BuilderEloquent ORM
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Real-Time Chat Application

Chatverse

A real-time messaging application built with Laravel and React, designed around a WhatsApp-style conversation experience with friendship management, conversations, persistent messages, and real-time message delivery.

Problem

The application needed to provide a responsive real-time messaging experience while maintaining a clean separation between the React client, Laravel API, persistent conversation data, and the real-time communication layer.

Solution

I built the backend with Laravel and exposed the core authentication, friendship, conversation, and messaging workflows through APIs. The React frontend consumes these APIs while Laravel Reverb handles real-time broadcasting. Laravel Echo and the Pusher-compatible client on React subscribe to broadcast channels so new messages can appear instantly without requiring the user to refresh the page.

LaravelPHPReactJavaScriptLaravel ReverbLaravel EchoPusher JSMySQLTailwind CSS
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Order Management Platform

Order Management System

A modular order management system designed to maintain data consistency and reliability when multiple users or processes attempt to create or modify orders concurrently.

Problem

Concurrent order operations created a risk of race conditions and inconsistent inventory or order state when multiple requests attempted to modify the same business-critical records at the same time.

Solution

I implemented database locking around concurrency-sensitive operations and wrapped critical order workflows inside database transactions. This ensured that related changes were committed atomically and that concurrent requests could not leave the system in an inconsistent state.

LaravelPHPMySQLEloquentDatabase Transactions
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Multi-Tenant SaaS Platform

Event Ticket Booking Platform

A multi-tenant event ticketing SaaS platform where multiple organizers can create and manage events while selling tickets to their customers through an isolated and concurrency-safe booking system.

Problem

The platform needed to support multiple independent event organizers while ensuring tenant data isolation. At the same time, concurrent users could attempt to reserve the same seat, creating a risk of double booking and inconsistent ticket inventory.

Solution

I designed the platform around a multi-tenant architecture with tenant-aware authorization and implemented database row-level locking during seat reservation to prevent multiple users from successfully booking the same seat under concurrent requests.

LaravelPHPMySQLBladeBootstrapDatabase Transactions
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ERP Platform

MDPL

A large ERP environment where backend reliability, maintainable module boundaries, API consistency, and operational stability were more important than flashy interfaces.

Problem

The system required stable API behavior, maintainable feature development, background processing, and careful collaboration across a large and continuously evolving codebase.

Solution

I contributed to backend modules, API handling, maintenance work, and asynchronous processing while improving consistency in implementation patterns and service-level reliability.

LaravelPHPMySQLQueuesJWT
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Operations Platform

Attendance Management System

A multi-company attendance management platform designed to help organizations track attendance and generate operational reports with less manual effort.

Problem

The workflow needed to remain operationally simple for administrators while being flexible enough to support multiple companies, teams, attendance workflows, and reporting requirements.

Solution

I implemented core backend modules, administrative workflows, reporting functionality, and access controls with an emphasis on maintainable data modeling and extensibility.

LaravelPHPMySQLBootstrap
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Learning Platform

Grow

A course delivery platform for teachers and students where learning materials, enrollments, and access controls had to work reliably.

Problem

The product needed a clear structure for courses, modules, enrollments, and role-based access without relying on ad-hoc workflows.

Solution

I helped shape the application around Laravel conventions, defined the core domain model, and implemented the essential user flows for course management and student access.

LaravelPHPMySQLBootstrap
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