Hire Me

Software Developer | Full-Stack, IoT & Dashboard Solutions

Hi, I'm Kosala Daneshwara

I design and build reliable digital products for businesses and individuals—from full-stack platforms and mobile applications to scalable APIs, dashboards, and IoT solutions.

40+

Projects

20+

Technologies

18+

Certifications

Kosala DaneshwaraSoftware Engineer

About Me

Turning Ideas Into Reliable Software

I help clients transform ideas and operational needs into practical software. Every project is approached with clear communication, thoughtful UI, maintainable architecture, and dependable delivery.

Available for client projects

LET'S BUILD TOGETHER

Have a project in mind? Let's make it real.

From the first idea to a production-ready release, I provide focused software development with clean interfaces, structured backend logic, responsive communication, and solutions designed around your goals.

Web ApplicationsMobile AppsAPIs & BackendBusiness DashboardsIoT Solutions

Discuss your project

Highlights

What I Do Best

Quick view of my strongest areas

Backend & APIs

REST APIs, Spring Boot microservices, clean service-to-service communication, Postman testing.

Databases

Oracle / MySQL / SQLite / SQL Server, PL/SQL procedures, triggers, normalized schema design.

Android Apps

Java Android apps with Firebase + SQLite + Google Maps API and smooth app flows.

IoT Systems

Arduino + ESP8266 + sensors, Firebase data push, dashboards, alert logic, prototype testing.

Technical Skills

Tech Stack & Expertise

Java React JavaScript PHP Python Node.js GitHub Android Docker Arduino

Programming Languages

Java
PHP
C#
JavaScript
Python
C++
SQL / PL-SQL

Frameworks & Libraries

Spring Boot
React.js
Android SDK
Node.js
Express.js
Bootstrap
jQuery

Databases

Oracle DB
MySQL
SQLite
Firebase
MongoDB
SQL Server

Frontend

HTML5
CSS3
JavaScript ES6+
Responsive Design
AJAX
JSON

Tools

Git & GitHub
Postman
REST APIs
Microservices
VS Code
Android Studio
IntelliJ IDEA

IoT & Hardware

Arduino
ESP8266
MPU6050
Servo Motors
Load Cells (HX711)
Ultrasonic Sensors

Cloud

Firebase
Google Cloud (Basics)
Azure Basics
Cloud Sync
Version Control

Concepts

OOP
SOLID
Design Patterns
Agile/SDLC
API Design
Clean Code
Database Design

Portfolio

Featured Projects

A curated collection of software, mobile, database, and IoT work. Select any project to explore it.

Ceylex Renewable Energy Dashboards

React | Node-RED | ThingsBoard | Solar, Wind & Hydro

Developed frontend views for renewable-energy monitoring projects
Integrated Node-RED API inputs and visualized plant status, power, energy, telemetry, and KPI values
Created dashboard concepts and animated monitoring visualizations

Role Frontend DeveloperStatus Professional project

Solar Soiling Detection ML

React | Flask | Machine Learning Workflow

Developed frontend interfaces for solar soiling and accuracy checking
Connected the React frontend to Flask prediction APIs
Designed clear prediction and result-display workflows

Role Frontend & API IntegrationStatus ML prototype

AC Service Management System

React | Google Sheets | Apps Script | Email Reminders

Built a live business workflow system for Supun Group of Companies
Synchronized customers, service records, job status, and orders through Apps Script APIs
Supported automated reminders, searching, filtering, and operational status updates

Role Full-Stack DeveloperResult Centralized service workflowStatus Client system

Centination Website

HTML | CSS | JavaScript | Live Deployment

Developed and deployed responsive, UI-focused page layouts
Improved frontend performance and completed domain integration
Delivered a production website for live use

Role Frontend DeveloperStatus Live production website

Visit Website

CAAD Gate

ESP32 | Arduino | Edge Intelligence | IoT

Learns normal sensor behaviour locally and forwards only meaningful or abnormal readings
Uses adaptive thresholds and device context such as battery, urgency, risk, CPU, and memory state
Supports sound, motion, environmental, and custom sensor-gating modules

Role IoT & Edge DeveloperStatus Live demo

Visit CAAD Gate

Supun Group Wholesale & Retail ERP

PHP | MySQL | JavaScript | ERP | Excel Import

Full ERP workflow for wholesale and retail operations - not limited to point-of-sale functions
Manages inventory, products, sales, customers, suppliers, and advance-payment transactions
Supports bulk product creation using a structured Excel template sheet

Role Full-Stack ERP DeveloperStatus Private client system

Online Payments Fraud Detection

Python | Scikit-learn | SMOTE | Random Forest

Prepared and evaluated 200,000 payment records using stratified train-test splitting
Applied SMOTE only to training data to improve fraud-class detection without data leakage
Compared Logistic Regression, Decision Tree, and Random Forest models with detailed evaluation metrics

Role ML DeveloperStatus GitHub case study

View ML Project

Personal Financial Management System

PHP | Oracle | SQLite | PL/SQL | Cloud Sync

Built budgeting and reporting modules with normalized database structure
Implemented automation using PL/SQL procedures and triggers
Designed cloud sync mechanism for local and cloud data handling

View on GitHub

Hotel Management System

Spring Boot | React | MySQL | Microservices

Distributed system with 5 microservices + 1 UI service
Room and booking workflows with clean APIs
Scalable structure with separation of concerns

View on GitHub

Hostel Management System

PHP | HTML | CSS | MySQL

Database-driven modules and management screens
CRUD features with structured MySQL tables
Reports for residents and inventory management

View on GitHub

PizzaMania Android App

Java | Firebase | SQLite | Google Maps API

Food ordering flow with real-time cart updates (Firebase)
Google Maps for branch detection + navigation
Admin panel for order tracking and product management

View on GitHub

Landslide Early Warning System

Arduino | ESP8266 | MPU6050 | Firebase | IoT

Sensor data collected and pushed to Firebase in real-time
Web dashboard for monitoring + alerts
Multi-level logic for early warning decisions

View on GitHub

River Trash Collector Robot

Arduino | Ultrasonic | Servo | HX711

Obstacle detection + automated collection logic (C++)
HX711 load cell weight + LCD output
Robotics flow for real prototype testing

View on GitHub

Library Management System

C# | SQL Server

Books, members, issue/return workflows
CRUD operations + validations
Structured database schema

View on GitHub

Explore my repositories More Projects Discover more software, IoT, mobile, and experimental work on GitHub. Open GitHub

Industry Experience

Professional Experience

Professional experience delivering production-ready interfaces, integrations, and renewable-energy monitoring dashboards.

Industry role

Software Developer (Intern)

SLT-MOBITEL · Colombo, Sri Lanka

May 2026 - Present

Develop frontend dashboards and software interfaces for business and monitoring systems.
Build React-based interfaces, integrate APIs, and prepare deployment-ready frontend builds.
Support renewable-energy visualization workflows using Node-RED, ThingsBoard, and live monitoring concepts.

ReactNode-REDThingsBoardAPI IntegrationIoT Dashboards

Education

Academic Journey

Current studies 2024 - Present

Higher National Diploma in Software Engineering

NIBM National Institute of Business Management

Completed 2023 - 2024

Diploma in Software Engineering

NIBM National Institute of Business Management

Advanced LevelG.C.E. A/L – 1C, 2S

G.C.E. Advanced Level (Physical Science)

Wariyapola Sri Sumangala M.M.V

Ordinary LevelG.C.E. O/L – 7A, 2B

G.C.E. Ordinary Level (O/L)

Wariyapola Sri Sumangala M.M.V

Certifications

Professional Credentials

A focused selection of credentials across cloud, databases, AI, APIs, and software development.

Oracle Data Platform 2025 Certified Foundations AssociateOracle — Issued Dec 2025

Graphic Design WorkshopZeroPlastic in NIBM — Issued Aug 2025

Developing Microsoft Azure SolutionsMicrosoft Learn Student Ambassadors (Sri Lanka) — Issued Jul 2025

HRXTechUniversity of Moratuwa — Issued Jul 2025

Microsoft AzureMicrosoft Learn Student Ambassadors — Issued Jul 2025

MCP Server using .NETMicrosoft Learn Student Ambassadors — Issued Jun 2025

AI for BeginnersHP LIFE — Issued Jan 2025

Agile Project Management FoundationLinkedIn — Issued Jan 2025

HP Life - Agile Project ManagementHP LIFE — Issued Jan 2025

Chatbot Development With Azure AI FoundryMicrosoft Learn Student Ambassadors — Issued Jan 2025

HackerRank SQL BasicsHackerRank — Issued Jan 2025

Java Basics (HackerRank)HackerRank — Issued Jan 2025

JavaScript BootCampLetsUpgrade — Issued Jan 2025

Lu-SQL BootcampLetsUpgrade — Issued Jan 2025

Postman API 102Postman — Issued Jan 2025

Web DevelopmentSoloLearn — Issued Jan 2025

Quantum Computing Fundamentals & Azure Quantum Development KitMicrosoft Learn Student Ambassadors — Issued 2025

TS: Microsoft Learn Student Ambassador - Navigate GitHub CopilotMicrosoft Learn Student Ambassadors — Issued 2025

Contact

Let's Build Your Next Project

Tell me what you want to build, improve, or automate. I will respond with the best next step for your project.

Available for selected projects

Start a conversation.

Share the goal, challenge, or system you have in mind. I will review it and suggest a practical next step.

Reply within 24 hours Your details stay private

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Projects Contact CV