Sagar Chauhan

Software Engineer | Full Stack | Android & Flutter

Software Engineer with 5+ years of experience across Android (Java & Kotlin), Flutter, and Full Stack development. Experienced in building, deploying, and maintaining production software for enterprise and eCommerce platforms.

Contact Me LinkedIn WhatsApp Download Resume

Technical Skills

Programming

Java

Kotlin

Dart

JavaScript

TypeScript

SQL

Mobile & Cloud

Android

Flutter

Firebase

AWS EC2

Docker

Linux

Frontend

React.js

Next.js

Vite

HTML/CSS

Tailwind / Shadcn

Backend & DB

Node.js

Express.js

Hono

PostgreSQL

MySQL

Redis

Professional Experience

Software Engineer | Full Stack Developer

Bilipatra

Oct 2025 – Present

Develop backend services using Node.js, TypeScript, Express.js, and Hono.
Build and maintain frontend applications using React.js, Next.js, HTML, CSS, and JavaScript.
Design responsive mobile interfaces using Flutter.
Integrate APIs and write scalable, clean, and maintainable code for cross-platform solutions.

Node.js TypeScript React.js Next.js Flutter Hono

Freelance Software Developer

Vraj Prachin Ayurved Chikitsa Kendra (Bilipatra)

Feb 2025 – Oct 2025

Primarily developed Flutter & Flutter Web applications while employed full-time.
Delivered scalable architectures and robust web solutions.
Participated in API planning, deployment, and architecture discussions.

Flutter Flutter Web Dart API Integration

Senior Android Developer

Biz-Insights IT Solutions LLP

Jun 2024 – Jun 2025

Developed and maintained enterprise Android applications.
Optimized app performance through refactoring and architectural improvements.
Collaborated with cross-functional teams to define requirements and deliver solutions.
Led technical architecture decisions and adapted to new project initiatives.

Android SDK Kotlin Java Room DB Flutter

Android Developer

Biz-Insights IT Solutions LLP

Jun 2021 – May 2024

Fully developed Android applications including Signatize and ManageMate.
Contributed to various other projects including Archezy, FindPanditji, Pandya Astrology, and Click Advertisement.
Worked on the Saath Studio ecosystem, creating variants like Saath Tabla, Saath Lehra, and Saath Band.
Developed internal projects such as Home Automation, Hall Booking, and Warehouse Management.

Android SDK Kotlin Java Google Play Console

Jr. Android Developer (Internship)

Biz-Insights IT Solutions LLP

Sep 2020 – May 2021

Gained proficiency in Android development, UI layout design, API integration, and Firebase.
Acquired practical experience with WebSocket, Socket.IO, and local databases.
Developed Home Automation modules and assumed responsibility for training new interns.

Android Studio Java Firebase Socket.IO REST APIs

Major Projects

E-commerce System (Bilipatra)

Comprehensive Full Stack eCommerce and CRM ecosystem for online sales, franchise management, OMS, and retail operations for Bilipatra.

View Portal →

Signatize

Ultimate tool for seamless Tally data synchronization and detailed business insights on the go. Simplifies sales processes with quotations and EMI calculations.

Google Play Store → Website →

ManageMate

Subscription-based software for CAs and Accounting Professionals. Streamlines office management with real-time financial reports and document sharing.

Google Play Store → Website →

Archezy

Data and project management solution tailored for architects and designers in the AEC community. Offers real-time collaboration and secure workflows.

Google Play Store → Website →

Astro Find Panditji

Find nearby pandits for pujas, chat, video call functionalities, horoscope readings, panchang, choghadiya, and kundli analysis.

Google Play Store → Website →

Saath Studio Ecosystem

A collection of music accompaniment apps (Saath Studio, Saath Tabla, Saath Lehra, Saath Band) with realistic instrumentation and playback controls for musicians.

Google Play Store → Website →