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I’m a Senior Flutter Developer with experience building high-performance, scalable mobile applications used by thousands of users. I’ve worked on production apps like duka.direct and Selcom Pesa, focusing on delivering smooth user experiences, strong performance, and reliable functionality. My core expertise is in Flutter and Dart, along with native development using Kotlin (Android) and Swift (iOS). I have hands-on experience with state management (GetX, Provider), REST API integration, local storage solutions (Hive, SharedPreferences), and secure app development. I also specialize in building advanced UI/UX, including custom animations, video players, and performance-optimized features. I’ve worked on complex functionalities such as M3U8 video streaming and downloading, background processing, and efficient file handling. I also have experience integrating third-party services, handling large-scale data, and ensuring smooth app performance across devices. I focus on writing clean, maintainable code and solving complex problems efficiently while delivering high-quality results on time.…I’m a Senior Flutter Developer with experience building high-performance, scalable mobile applications used by thousands of users. I’ve worked on production apps like duka.direct and Selcom Pesa, focusing on delivering smooth user experiences, strong performance, and reliable functionality. My core expertise is in Flutter and Dart, along with native development using Kotlin (Android) and Swift (iOS). I have hands-on experience with state management (GetX, Provider), REST API integration, local storage solutions (Hive, SharedPreferences), and secure app development. I also specialize in building advanced UI/UX, including custom animations, video players, and performance-optimized features. I’ve worked on complex functionalities such as M3U8 video streaming and downloading, background processing, and efficient file handling. I also have experience integrating third-party services, handling large-scale data, and ensuring smooth app performance across devices. I focus on writing clean, maintainable code and solving complex problems efficiently while delivering high-quality results on time.

Swapnil Rathod

App Developer, Full Stack Developer, Web Developer, +3

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I’m a Senior Flutter Developer with experience building high-performance, scalable mobile applications used by thousands of users. I’ve worked on production apps like duka.direct and Selcom Pesa, focusing on delivering smooth user experiences, strong performance, and reliable functionality. My core expertise is in Flutter and Dart, along with native development using Kotlin (Android) and Swift (iOS). I have hands-on experience with state management (GetX, Provider), REST API integration, local storage solutions (Hive, SharedPreferences), and secure app development. I also specialize in building advanced UI/UX, including custom animations, video players, and performance-optimized features. I’ve worked on complex functionalities such as M3U8 video streaming and downloading, background processing, and efficient file handling. I also have experience integrating third-party services, handling large-scale data, and ensuring smooth app performance across devices. I focus on writing clean, maintainable code and solving complex problems efficiently while delivering high-quality results on time.…I’m a Senior Flutter Developer with experience building high-performance, scalable mobile applications used by thousands of users. I’ve worked on production apps like duka.direct and Selcom Pesa, focusing on delivering smooth user experiences, strong performance, and reliable functionality. My core expertise is in Flutter and Dart, along with native development using Kotlin (Android) and Swift (iOS). I have hands-on experience with state management (GetX, Provider), REST API integration, local storage solutions (Hive, SharedPreferences), and secure app development. I also specialize in building advanced UI/UX, including custom animations, video players, and performance-optimized features. I’ve worked on complex functionalities such as M3U8 video streaming and downloading, background processing, and efficient file handling. I also have experience integrating third-party services, handling large-scale data, and ensuring smooth app performance across devices. I focus on writing clean, maintainable code and solving complex problems efficiently while delivering high-quality results on time.

Available to hire

I’m a Senior Flutter Developer with experience building high-performance, scalable mobile applications used by thousands of users. I’ve worked on production apps like duka.direct and Selcom Pesa, focusing on delivering smooth user experiences, strong performance, and reliable functionality.

My core expertise is in Flutter and Dart, along with native development using Kotlin (Android) and Swift (iOS). I have hands-on experience with state management (GetX, Provider), REST API integration, local storage solutions (Hive, SharedPreferences), and secure app development. I also specialize in building advanced UI/UX, including custom animations, video players, and performance-optimized features.

I’ve worked on complex functionalities such as M3U8 video streaming and downloading, background processing, and efficient file handling. I also have experience integrating third-party services, handling large-scale data, and ensuring smooth app performance across devices.

I focus on writing clean, maintainable code and solving complex problems efficiently while delivering high-quality results on time.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Flutter Developer at Selcom Tanzania

May 1, 2023 - Present

Led Flutter development for Selcom Pesa, a digital banking app with 120k+ downloads, including bank-to-bank transfers, international payments, QR payments, bill payments, savings/fixed deposits, loans, group savings, transaction bundles, bulk payments, merchant accounts, and recurring payments. Implemented digital onboarding using NIDA and Passport NFC with native SDK verification (face detection). Built Google Maps integration with 50k+ live markers to show agents, branches, and experience centers. Improved UI/UX, animation, performance, and delivered continuous feature updates. Also contributed to internal Error Reporting Portal for cross-product crash collection and debugging.

Flutter Developer at Cube Technology

April 1, 2023 - September 24, 2025

Stock Market App: Built a real-time stock market mobile app in Flutter with live price updates, chart visualizations, watch lists, and push notifications; optimized state management and caching for smooth high-frequency data handling. Quotation Management (Web): Developed a web-based module for managing quotations with dynamic forms, PDF export, and secure API integration for enterprise clients.

Senior Flutter Developer at Selcom Tanzania

May 1, 2023 - Present

Senior Flutter Developer at Selcom Tanzania. Led the development of Selcom Pesa, a digital banking app with 120k+ downloads, delivering features including bank transfers, international payments, QR payments, bill payments, savings/Deposits, loans, group savings, transaction bundles, bulk payments, merchant accounts and recurring payments. Implemented digital onboarding using NIDA and Passport NFC with native SDKs for verification, including face detection. Built Google Maps integration with 50k+ live markers for agents, branches and experience centers. Received praise for UI/UX and smooth animations. Contributed to the Duka.direct app and implemented an internal Error Reporting Portal for real-time crash review.

Flutter Developer at Cube Technology

April 30, 2023 - September 24, 2025

Flutter Developer at Cube Technology. Built a real-time stock market mobile app with live price updates, chart visualizations, watch lists, and push notifications; optimized state management and caching for high-frequency data on mobile. Also developed a Quotation Management web app with dynamic form generation, PDF export, and secure API integration for enterprise clients.

Senior Flutter Developer at Selcom

May 1, 2023 - Present

Led development of Selcom Pesa, a digital banking app with 120k+ downloads. Delivered a full-featured financial experience including bank-to-bank transfers, international payments, QR payments, bill payments, savings/ fixed deposits, loans, group savings, transaction bundles, bulk payments, merchant accounts, and recurring payments. Implemented digital onboarding via NIDA and Passport NFC with native SDKs for verification (face detection). Built Google Maps integration with 50k+ live markers for agents, branches and experience centers with custom clustering. Received positive UI/UX reviews and a 5/5 rating from Shaheen Khatieb.

Flutter Developer at Cube Technology

April 1, 2023 - October 8, 2025

Built Stock Market mobile app in Flutter featuring real-time price updates, charts, watchlists, and push notifications; optimized state management and caching for high-frequency data. Also developed Quotation Management (Web) with dynamic form generation, PDF export, and secure backend integration for enterprise customers.

Senior Flutter Developer at Selcom

May 1, 2023 - Present

Led development of Selcom Pesa and Duka.direct Flutter apps, delivering a full-feature fintech and lifestyle experience including transfers, international payments, QR/payments, bill payments, savings/FDs, loans, group savings, merchant accounts, recurring payments, and batch/merchant capabilities. Implemented digital onboarding with NIDA and Passport NFC using native SDKs, enabling seamless identity verification. Built a Google Maps integration with 50k+ live markers and custom clustering for agents, branches, and experience centers in real time. Improved UI/UX, performance, and reliability, contributing to positive reviews.

Flutter Developer at Cube Technology

April 1, 2023 - October 8, 2025

Built a real-time stock market app in Flutter featuring live price updates, charts, watch lists, and push notifications. Optimized state management and caching to handle high-frequency feeds on mobile. Also built a web-based Quotation Management system for enterprise clients with dynamic forms, PDF export, and secure API integration to streamline quotes and approvals.

Flutter Developer at CUBE TECHNOLOGY

August 1, 2022 - April 1, 2023

Stock Market App with real-time price updates, chart visualizations, watch lists, and push notifications; Quotation Management Web with dynamic forms, PDF export, and secure backend integration; optimized state management, caching, and performance to support high-frequency data.