Abhay Sangwan

Results-driven Mobile Application Developer with 4.6+ years of experience delivering scalable, high-performance cross-platform applications using Flutter, FlutterFlow, and React Native. Specialized in building real-time, user-centric solutions across social, healthcare, fintech, and e-commerce domains. Expertise in REST API integration, Firebase, WebRTC/Agora, Socket-based architectures, and offline-first systems (Isar, Objectbox, Hive, SQLite).

Proven track record of driving performance optimization, reducing latency, and enhancing responsiveness in high-concurrency environments. Skilled in clean architecture, modular design, Agile development, and CI/CD practices, ensuring maintainable, production-ready systems. Experienced in leading end-to-end delivery, from concept to deployment, aligning technology with business outcomes.

Software Engineer at Nessfi Tech Pvt Ltd (2023-10 – Present)

• Created and handled scalable Flutter applications, enhancing healthcare, live streaming, and e-commerce for over 100,000 users
• Transformed API efficiency and reduced response delays, leading to improved UI performance and user experience by 36%
• Executed complete app lifecycle with Xcode, ensuring adherence to guidelines while delivering superior quality applications
• Developed offline-first Flutter applications using local storage, caching, and background sync, improving user experience by 60%
• Designed scalable offline data architecture enhancing app reliability to 99.5% uptime
• Collaborated with cross-functional teams to integrate new features, accelerating delivery by 30%
• Managed end-to-end app lifecycle from development to iOS App Store and Google Play Store deployment
• Implemented CI/CD pipelines using GitHub Actions and Codemagic to automate Flutter application builds, testing, code signing, and deployment to Google Play Store and Apple App Store, reducing manual deployment effort and improving release reliability

Software Engineer (Flutter Developer) at Inmortal Technologies Pvt Ltd (2023-01 – 2023-10)

• Independently developed fintech and media apps with real-time features, improving efficiency and scalability
• Led cross-functional teams, managed client communication, and delivered high-quality, user-focused solutions aligned with business requirements
• Delivered advanced real-time communication features including live video/audio streaming, interactive chat rooms, messaging systems, and virtual gifting using Agora/WebRTC, Socket-based architecture, and Firebase

Flutter Developer at Techtonic Enterprises Pvt Ltd (2022-03 – 2023-01)

• Led development of high-performance enterprise mobile applications using Flutter & Dart, significantly improving operational efficiency and user experience
• Designed and delivered business-critical systems including HRMS, vendor management, and invoicing solutions to streamline workflows, enhance collaboration, and automate core processes
• Integrated secure and scalable backend services and REST APIs, ensuring reliable data flow and seamless system communication across modules
• Improved application performance through code optimization, efficient state management, and responsive UI design, resulting in faster load times and better usability
• Collaborated with stakeholders and cross-functional teams to translate business requirements into scalable solutions, ensuring timely delivery and high client satisfaction

Master of Computer Applications in Computer Applications – Guru Jambheshwar University of Science and Technology (2021)

Bachelor of Computer Applications in Computer Applications – Maharshi Dayanand University (2019)