Responsibilities & achievements

- Developed features for ReactJS applications and NodeJS/Express systems for Evermart. - Contributed to the development of low-code and front-end React/NextJS/Redux applications. - Implemented mathematical queries and calculations to the MongoDB database with large amounts of data through paging and in-memory logging by RedisDB. - Managed microservice communications using message brokers such as RabbitMQ.

Responsibilities & achievements

- Developed a back-end system converting Excel files into JSON files via RESTful APIs using NodeJS/TypeScript/ExpressJS, adhering to Clean Architecture principles. - Implemented background processing using Bull/Redis and Docker containerization. - Integrated Stripe payment processing, leveraging Restful APIs and Webhooks for secure transactions. - Collaborated with the frontend team to ensure seamless integration of backend functionalities with the user interface. - Conducted code reviews and provided mentorship to junior developers, ensuring code quality and adherence to best practices.

Responsibilities & achievements

- Implemented caching strategies using Redis to optimize API responses and reduce latency. - Worked with natural language processing using Python to enhance chatbot interaction and understanding. - Collaborated with cross-functional teams to gather requirements and deliver solutions that meet business needs. - Conducted performance optimization tasks, identifying and resolving bottlenecks in the system architecture.

Responsibilities & achievements

- Developed the app using JS, React Native, Redux, React Router, Node, Express, NPM. - Utilized Redux/Saga for state management and Axios for asynchronous REST/API data retrieval. - Implemented user authentication and authorization mechanisms, ensuring secure access to sensitive features and data. - Designed and implemented RESTful APIs for frontend-backend communication, following best practices for scalability and maintainability. - Conducted regular code refactoring and optimization to improve performance and maintainability of the codebase.

Responsibilities & achievements

- Worked on various projects including developing SPAs and apps in React/Firebase. - Created a proof of concept streaming service utilizing AWS services such as AWS CloudFront, Lambda, S3, and Transcoder. - Implemented responsive design principles and optimized UI/UX for different devices and screen sizes. - Collaborated with the design team to translate wireframes and mockups into interactive and visually appealing user interfaces. - Conducted usability testing and gathered feedback to iteratively improve the user experience.

Responsibilities & achievements

- Improved website performance by developing React/NextJS blogs and implementing SEO enhancements using Google Lighthouse. - Addressed website performance issues by optimizing React components using RollupJS. - Developed a front-end system enabling P2P web cache sharing between users using the PeerJS library. - Collaborated with backend developers to design and implement RESTful APIs for front-end integration. - Conducted A/B testing and performance monitoring to identify and address usability and performance issues.

Responsibilities & achievements

- Developed a Flutter app in BloC architecture with Firebase backend as a service. - Implemented real-time communication features using Firebase Cloud Messaging (FCM) for push notifications. - Conducted code reviews and provided feedback to ensure code quality and adherence to coding standards. - Collaborated with UX/UI designers to create intuitive and user-friendly mobile interfaces. - Implemented offline capabilities using local data storage to ensure app functionality in low-connectivity environments.

Responsibilities & achievements

- Simplified interface for labor tax payments, developing web applications in React/Nodejs. - Created front-end interfaces with React/Angular, utilizing Webpack, ES6/Typescript, and Bootstrap. - Conducted user training sessions to facilitate the adoption of new software solutions and features. - Assisted in the design and implementation of database schemas for storing and retrieving application data. - Participated in cross-functional teams to troubleshoot and resolve technical issues reported by end-users.