Shyam - Android Developer

Professional Journey

6+ years building innovative mobile solutions

Nov 2024 – Present

Android Developer

📍 Mentegoz Technologies, Calicut

Designing and developing Android applications with REST API integration and database backends for client projects.

Nov 2022 – Nov 2024

Assistant IT Head

📍 Grand Hyper Market, Muscat, Oman

Directed IT operations across multiple branches. Led API & software development (.NET, Kotlin, Java, Flutter), ERP, POS, server, and network management.

Apr 2022 – Nov 2022

Senior Developer

📍 Grand Hyper Market, Dubai, UAE

Delivered software and API development solutions using .NET, Kotlin, Java, Flutter, and JavaScript, including system integrations.

Feb 2017 – Apr 2022

Mobile App Developer

📍 Mentegoz Technologies, Calicut

Built and published mobile applications with API and database integration, ensuring scalable and reliable solutions.

Technical Expertise

Comprehensive skill set for mobile development

🚀 Mobile Development

Kotlin Java Dart/Flutter Android SDK RxJava Coroutines MVVM Clean Architecture Jetpack JUnit

📡 Connectivity

Bluetooth (SPP, HID, A2DP, AVRCP) BLE (GATT) WiFi USB Ethernet Internet

💾 Databases

SQLite Room DB Firebase Firestore Realtime DB MySQL

🌐 API & Tools

Retrofit Volley REST APIs JSON XML Encryption/Decryption Data Compression Postman Hoppscotch Swagger Git Android Studio VS Code

Featured Projects

Real-world applications solving complex problems

📱

MOSBILL

Flagship Project

Invoice Billing & Business Management Application

📋 Overview

MOSBILL is a comprehensive business management application designed for businessmen to handle GST billing, invoicing, purchase orders, inventory management, and business analytics. The app digitizes the entire sales process with an advanced, user-friendly interface developed after extensive market research and client consultations.

Features multi-user support, real-time synchronization, comprehensive reports, and Bluetooth thermal printing capabilities using Serial Port Profile (SPP) for instant invoice printing.

🎯 Key Features

✓ GST Compliant Invoicing
✓ Multi-user Business Management
✓ Real-time Inventory Tracking
✓ Purchase Order Management
✓ Business Analytics & Reports
✓ Bluetooth Thermal Printing (SPP)
✓ Cloud Sync with Firebase
✓ Customizable for Different Business Needs

💻 Technologies Used

Java Kotlin XML JSON Volley Room DB Firebase Firestore Bluetooth SPP REST API MVVM

▶ View on Play Store

Other Projects

🔥

2025

TGZ ERP

Order and customer management app with Bluetooth SPP invoice printing.

Kotlin ERP Bluetooth SPP

🎵

2024

GRAND MEDIA PLAYER

Audio player using Bluetooth A2DP & AVRCP for demo switching across multiple devices.

Java A2DP AVRCP

🏷️

2023

LABEL PRINTER

Print product labels by connecting multiple printers via local WiFi network.

Kotlin WiFi Print Services

💰

2023

PRICE CHECKER

Barcode scanner with ASP.NET API integration for real-time price lookup.

Java Barcode ASP.NET

📦

2022

LIVE STOCK TAKING

Real-time stock inventory monitoring with ASP.NET backend integration.

Kotlin ASP.NET Real-time

🖨️

2021

Bluetooth Thermal Printing

Converts ERP invoices to PDF and prints via Bluetooth SPP thermal printer.

Java PDF Bluetooth SPP

🖱️

2017

ANDROID REMOTE MOUSE

Control PC mouse remotely via Bluetooth HID with Android screen as trackpad.

Java Bluetooth HID Touch

💡

2016

SMART SWITCH

BLE-based smart bulb controller using GATT for ON/OFF, brightness, and RGB color control.

Java BLE GATT IoT

Web Development

Additional full-stack web projects

🌐

Apollo Systems & Technologies

Corporate website for integrated security, safety solutions, solar power, IT networking, and audio-visual systems provider.

Visit Website →

Web Development Corporate Site

🚀

Team Interval

Professional website for Team Interval with clean UI and optimized performance.