Sushmita K.

👋I am a Full-Stack Web and Mobile App Developer with 6+ years of experience building scalable, user-friendly, and feature-rich applications for startups, businesses, and established companies. I specialize in developing native iOS and Android applications, cross-platform mobile apps, responsive web applications, and backend systems. My experience spans the complete application development lifecycle, from planning and architecture to development, third-party API integration, testing, and deployment. I have worked on diverse projects across on-demand services, healthcare, fitness and wellness, food and grocery delivery, transportation, real estate, e-commerce, fintech, social networking, education, and business management. I focus on building reliable digital products with intuitive user experiences, secure integrations, real-time functionality, and scalable architectures tailored to business requirements. Primary Niche ❇️On-Demand Service and Marketplace Applications ❇️Native iOS and Android App Development ❇️Cross-Platform Mobile App Development ❇️Full-Stack Web Application Development ❇️Real-Time Applications and API Integrations ❇️Healthcare, Fitness, and Wellness Applications ❇️Food Delivery, Grocery, and E-commerce Platforms ❇️Booking, Scheduling, and Location-Based Applications ❇️Fintech, Social Networking, and Business Management Solutions Years of Expertise 💼6+ years of experience in web and mobile application development. Tech Stack Mobile Development ➡️iOS: Swift, Objective-C ➡️Android: Kotlin, Java, Jetpack ➡️Cross-Platform: Flutter (Dart), React Native Frontend Development ➡️React.js ➡️Next.js ➡️Angular ➡️HTML5 ➡️CSS3 Backend Development ➡️Node.js ➡️NestJS ➡️Express.js ➡️Laravel ➡️PHP API Development & Integrations ➡️REST APIs ➡️AWS Lambda ➡️Amazon API Gateway ➡️Third-Party API Integrations ➡️Payment Gateway Integrations ➡️Maps and Location Services Real-Time Application Development ➡️Socket,IO ➡️Firebase Realtime Database ➡️Twilio ➡️Real-Time Messaging and Notifications ➡️Live Location and GPS Tracking Payment Integrations ➡️Stripe ➡️Razorpay ➡️PayPal ➡️Braintree Development Tools & Collaboration ➡️GitHub ➡️GitLab ➡️Bitbucket Frameworks ➡️Flutter ➡️React Native ➡️React.js ➡️Next.js ➡️Angular ➡️NestJS ➡️Express.js ➡️Laravel ➡️Jetpack Databases ➡️MySQL ➡️MongoDB ➡️Firebase ➡️Amazon DynamoDB ➡️Cloud Services / Hosting ➡️AWS Lambda ➡️Amazon API Gateway ➡️Firebase Cloud Services I work with cloud-based backend and API services to support application functionality, integrations, and scalable development workflows. 🛠️Back-End Development I develop backend systems and APIs that power mobile and web applications, including user authentication, business logic, database operations, third-party integrations, and real-time communication. My backend expertise includes Node.js, NestJS, Express.js, Laravel, and PHP, along with REST API development, Firebase integrations, and AWS Lambda-based services. I also integrate payment gateways, Google Maps and Apple MapKit, GPS tracking, and communication services to deliver complete application solutions. My focus is on creating maintainable backend architectures that support reliable performance and future business growth. ﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌ Whether you need to build a mobile app from scratch, develop a scalable web platform, integrate third-party services, or enhance an existing application, I can help turn your idea into a practical digital solution. I bring a combination of technical expertise, cross-platform development experience, and an understanding of diverse business requirements to every project. My goal is to deliver reliable, user-focused applications that align with your objectives and provide long-term value. ╰┈➤Explore my portfolio 👇