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I am a full-stack and cross-platform developer with over 7 years of experience creating high-performance web and mobile apps using React.js, Next.js, Vue.js, Android (Java/Kotlin), and Flutter. I excel in building responsive user interfaces, managing application state, connecting to APIs, enabling real-time communication, and integrating AI-powered features. I have collaborated closely with teams, worked extensively with Agile/Scrum methodologies, and successfully turned detailed Figma designs into pixel-perfect, ready-to-use applications. I have experience deploying solutions using AWS, Firebase, and app stores, and I am passionate about leveraging AI services to build intelligent and dynamic software solutions.…I am a full-stack and cross-platform developer with over 7 years of experience creating high-performance web and mobile apps using React.js, Next.js, Vue.js, Android (Java/Kotlin), and Flutter. I excel in building responsive user interfaces, managing application state, connecting to APIs, enabling real-time communication, and integrating AI-powered features. I have collaborated closely with teams, worked extensively with Agile/Scrum methodologies, and successfully turned detailed Figma designs into pixel-perfect, ready-to-use applications. I have experience deploying solutions using AWS, Firebase, and app stores, and I am passionate about leveraging AI services to build intelligent and dynamic software solutions.

Sameer Kanasagara

Web Developer, Programmer, Full Stack Developer, +2

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I am a full-stack and cross-platform developer with over 7 years of experience creating high-performance web and mobile apps using React.js, Next.js, Vue.js, Android (Java/Kotlin), and Flutter. I excel in building responsive user interfaces, managing application state, connecting to APIs, enabling real-time communication, and integrating AI-powered features. I have collaborated closely with teams, worked extensively with Agile/Scrum methodologies, and successfully turned detailed Figma designs into pixel-perfect, ready-to-use applications. I have experience deploying solutions using AWS, Firebase, and app stores, and I am passionate about leveraging AI services to build intelligent and dynamic software solutions.…I am a full-stack and cross-platform developer with over 7 years of experience creating high-performance web and mobile apps using React.js, Next.js, Vue.js, Android (Java/Kotlin), and Flutter. I excel in building responsive user interfaces, managing application state, connecting to APIs, enabling real-time communication, and integrating AI-powered features. I have collaborated closely with teams, worked extensively with Agile/Scrum methodologies, and successfully turned detailed Figma designs into pixel-perfect, ready-to-use applications. I have experience deploying solutions using AWS, Firebase, and app stores, and I am passionate about leveraging AI services to build intelligent and dynamic software solutions.

Available to hire

I am a full-stack and cross-platform developer with over 7 years of experience creating high-performance web and mobile apps using React.js, Next.js, Vue.js, Android (Java/Kotlin), and Flutter. I excel in building responsive user interfaces, managing application state, connecting to APIs, enabling real-time communication, and integrating AI-powered features.

I have collaborated closely with teams, worked extensively with Agile/Scrum methodologies, and successfully turned detailed Figma designs into pixel-perfect, ready-to-use applications. I have experience deploying solutions using AWS, Firebase, and app stores, and I am passionate about leveraging AI services to build intelligent and dynamic software solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Senior JavaScript & Mobile Developer at Protokol.io, Serbia

April 1, 2023 - Present

Led development of a complex web application using Next.js and React.js delivering a high-performance responsive app improving user engagement and satisfaction. Managed large-scale application state with Redux Toolkit and integrated both RESTful and GraphQL APIs. Developed cross-platform mobile apps using Flutter and native Android (Kotlin) with offline capabilities, Firebase authentication, and push notifications. Collaborated with UI/UX designers to transform complex Figma designs into pixel-perfect user interfaces using Tailwind CSS and MUI. Spearheaded AI services and machine learning model integration into applications using prompt engineering to create dynamic intelligent features.

Jr. JavaScript Developer at Cypherox Technology, India

July 31, 2023 - August 19, 2025

Developed and optimized features for client-facing products using Vue.js, enhancing functionality and performance. Implemented real-time functionality with WebSockets to provide live data updates and improved user experience. Developed Flutter applications with localization, API integrations, and responsive UI for iOS and Android. Wrote clean, maintainable, well-tested code in JavaScript and TypeScript and took part in code reviews. Managed deployments on AWS and Firebase and used Node.js to interact with backend services and databases (MongoDB, PostgreSQL). Led Agile/Scrum stand-up meetings to monitor sprint progress, resolve roadblocks, and improve team velocity.

Senior JavaScript & Mobile Developer at Protokol.io

April 1, 2023 - Present

Led development of a complex web app using Next.js and React.js, delivering a responsive and high-performance application that enhanced user engagement. Managed large-scale application state with Redux Toolkit and integrated RESTful and GraphQL APIs. Developed cross-platform mobile apps using Flutter and native Android (Kotlin) that support offline usage and Firebase authentication with push notifications. Collaborated closely with UI/UX designers to convert Figma designs into pixel-perfect user interfaces using Tailwind CSS and MUI. Spearheaded the integration of AI services and ML models by utilizing prompt engineering for dynamic intelligent features.

Jr. JavaScript Developer at Cypherox Technology

July 31, 2023 - August 22, 2025

Developed and optimized client-facing product features with Vue.js, improving functionality and performance. Employed Agile/Scrum methodologies with tools like JIRA and Confluence to enhance development workflow and delivery speed. Implemented real-time data updates using WebSockets. Provided Flutter app development with localization, API integration, and responsive UI for iOS and Android. Wrote clean, maintainable JavaScript and TypeScript code, participated in code reviews, and managed deployments to AWS and Firebase. Used Node.js for backend interaction with MongoDB and PostgreSQL. Led stand-up meetings to monitor sprint progress and resolve roadblocks, increasing team velocity.