Pawan Kumar
Building high-performance applications with 850K+ downloads and serving 150,000+ daily active users with 99.9% uptime.
About Me
I'm a Full Stack Developer with over 4 years of experience specializing in Flutter, Firebase, React.js, and Node.js. My passion lies in creating high-performance, user-friendly applications that solve real-world problems.
With applications reaching 850,000+ downloads and serving 150,000+ daily users, I've demonstrated my ability to build scalable solutions that people love to use.
My development philosophy centers around performance optimization, clean architecture, and intuitive user experiences. I believe that great software should not only work flawlessly but also feel natural to use.
Technologies I work with
Technical Skills
My expertise spans across multiple domains with a focus on creating high-performance, scalable applications.
Flutter
ExpertDart
ExpertFirebase
ExpertReact.js
AdvancedNode.js
AdvancedTypeScript
AdvancedNext.js
AdvancedMongoDB
AdvancedCI/CD
IntermediateAWS
IntermediateDocker
IntermediateUI/UX Design
AdvancedFeatured Projects
A selection of my recent work across mobile and web platforms. Each project represents unique challenges and custom solutions.
Taiyari Karlo Ed-Tech
Comprehensive educational platform with real-time data synchronization and payment gateway integration
OK Travel - Travel Agency Management App
Comprehensive management app for Indian travel agencies with multi-platform bookings, payment tracking, and expense management
Math Equation Editor
Web-based mathematical equation editor with real-time LaTeX rendering supporting multiple export formats
Android TV PDF Viewer
The first-ever open-source PDF viewer optimized for Android TV platform with intuitive remote control navigation
Catering Group App
Multi-platform catering management solution with mobile app and web dashboard for menu customization and real-time order tracking
WhatsApp Business Integration System
Custom WhatsApp integration with automated messaging capabilities and advanced user targeting
Case Studies
Detailed analysis of select projects showcasing the challenges, solutions, and results achieved.
Taiyari Karlo Ed-Tech
Educational platform with 850K+ downloads and 0.9s load time
Problem
Students in India faced challenges finding quality educational content at affordable prices, with sl...
Solution
Built a comprehensive educational platform with Flutter for cross-platform support, Firebase for rea...
Results
The app achieved 850K+ downloads, maintains 150,000+ daily active users with 99.9% uptime, and has c...
WhatsApp Business Integration System
Custom WhatsApp integration with automated messaging capabilities and advanced user targeting
Problem
Businesses struggled with efficient customer communication and targeted marketing campaigns via What...
Solution
Developed a custom WhatsApp Business Integration System using Meta Graph API with webhook implementa...
Results
The system successfully handles 500+ daily messages with a 99.7% delivery rate, implemented personal...
OK Travel - Travel Agency Management App
Comprehensive travel agency management platform with multi-platform bookings
Problem
Travel agencies in India struggled with fragmented booking systems, manual payment tracking, and ine...
Solution
Developed an integrated platform handling bookings, payments, expense management, and customer relat...
Results
Created a comprehensive management solution with multi-platform bookings, payment tracking, expense ...
Math Equation Editor (Open Source)
Web-based mathematical equation editor with real-time LaTeX rendering
Problem
Students and educators struggled with complex and unintuitive equation editors that lacked real-time...
Solution
Created a web-based mathematical equation editor using Flutter for the web with real-time LaTeX rend...
Results
Developed a fully functional open-source equation editor with multiple export options (PNG, SVG, EPS...
My Resume
A summary of my professional experience, skills, and achievements.
PAWAN KUMAR
Full Stack Mobile & Web Application Developer
Professional Summary
Full Stack Developer with 4+ years of experience specializing in Flutter, Firebase, React.js, and Node.js. Delivered high-performance mobile and web applications achieving 850K+ downloads with 0.9-second load times. Architected scalable backend infrastructure supporting 150,000+ daily active users with 99.9% uptime. Expertise in developing reusable component libraries, optimizing application performance, and implementing secure payment solutions.
Technical Skills
Programming Languages: Dart, JavaScript, TypeScript, HTML5, CSS
Frameworks & Libraries: Flutter, React.js, Next.js, Node.js, Express.js
State Management: BLoC, Provider, Redux, Context API
Databases: Firebase Firestore, MongoDB, MySQL
Cloud Services: Firebase, Google Cloud Platform
Tools & Technologies: Git, GitHub, RESTful APIs, GraphQL, CI/CD, WebSockets
Payment Integration: Razorpay, PhonePe
Other: Performance Optimization, Responsive Design, Push Notifications
Professional Experience
Full Stack Mobile & Web Application Developer
GBVN Edutech Private Limited (Taiyari Karlo)
June 2021 - Feb 2025
Jaipur, India
- Led development of the Taiyari Karlo Ed-Tech platform, achieving 850K+ downloads and boosting user engagement
- Optimized Flutter widgets and data structures to achieve 0.9-second load times across Android, iOS, and Web platforms
- Designed and implemented scalable RESTful APIs using Node.js and Firebase, enabling real-time data synchronization
- Integrated Razorpay and PhonePe payment gateways, ensuring secure, frictionless transactions
- Created reusable component library of 50+ custom widgets, reducing development time for new features by 40%
- Architected backend infrastructure handling 150,000+ daily active users with 99.9% uptime
- Developed custom animated UI elements contributing to visually compelling and user-friendly interfaces
WhatsApp Business Integration System Developer
Freelance Project
January 2023 - March 2023
Jaipur, India
- Developed custom WhatsApp integration using Meta Graph API with webhook implementation
- Created responsive web interface with Firestore backend supporting advanced filtering capabilities
- Implemented automated personalized messaging to targeted users, increasing client revenue by 28%
- Built real-time chat functionality, comprehensive search features, and seamless app integration
- Designed solution handling 500+ daily messages with 99.7% delivery rate
Projects
Taiyari Karlo Ed-Tech
Flutter, Firebase, Node.js, Payment Gateway
- Comprehensive educational platform with real-time data synchronization and payment gateway integration
- Key features: 850K+ downloads, 150K daily users, 0.9s load time
OK Travel - Travel Agency Management App
Flutter, Firebase, Node.js, Bloc Pattern
- Comprehensive management app for Indian travel agencies with multi-platform bookings, payment tracking, and expense management
- Key features: Travel Management, Account Management, PDF Generation
Math Equation Editor
Flutter, Web, LaTeX, BLoC Pattern
- Web-based mathematical equation editor with real-time LaTeX rendering supporting multiple export formats
- Key features: Open Source, Multiple Export Formats, Real-time Rendering
Android TV PDF Viewer
Flutter, Android TV, PDF Rendering, TV UI
- The first-ever open-source PDF viewer optimized for Android TV platform with intuitive remote control navigation
- Key features: Open Source, Large Screen Optimization, Remote Control Navigation
Education
Bachelor of Science (Physics, Chemistry, Mathematics)
Maharaja Ganga Singh University, Bikaner
2018
O Level Certification (Computer Software Technology)
National Institute of Electronics & Information Technology (NIELIT)
2018 | B Grade
Languages
- Hindi - Native
- English - Proficient
Achievements
- Created the first-ever Android TV PDF viewer addressing a significant gap in the ecosystem
- Optimized image and video loading mechanisms, reducing cellular data usage by 35%
- Developed apps achieving 850K+ downloads with excellent user ratings
- Increased code reliability through comprehensive component libraries and testing
Get In Touch
Have a project in mind or want to discuss potential collaborations? Feel free to reach out and I'll get back to you within 24 hours.
Availability
I typically respond within 24 hours and am available for new projects starting from May 2025.