10/07/2025 updated
100 % available
Senior Full Stack Developer with 5 years of experience in React, Node.js and MongoDB
Kuala Lumpur, Malaysia
Only remote
Taras Shevchenko National University of KyivHTMLJavaScriptUser Experience (UX)Application Programming Interfaces (APIs)Agile MethodologyAmazon Web ServicesApple IOSMicrosoft AzureBootstrap (Software)Cascading Style Sheets (CSS)Mobile Application DevelopmentDevOpsHypertext Transfer Protocols (HTTP)Mobile Application SoftwareJUnit
Full Stack Development
Expertise in building scalable web applications using React, Node.js, and MongoDB with 5 years of experience designing and developing robust solutions.
API Integration & Development
Experience developing REST APIs and serverless functions, integrating third-party APIs like Stripe and PayPal, and creating reusable components to reduce development time.
Performance Optimization
Skilled in implementing performance optimizations across front-end and back-end, resulting in significant improvements in page speed, system performance, and user experience.
Frontend Technologies
Proficiency in HTML, CSS, JavaScript, Angular, React, Vue, Redux, TypeScript, Backbone, Bootstrap, Tailwind CSS, React Native, Next.js, and Nuxt.
Backend Technologies
Knowledge of Python, NumPy, SciPy, Scikit-learn, Keras, Eli5, TensorFlow, MySQL, Node.js, Redis, AWS, MongoDB, Spark, HTTP/2, PostgreSQL, Java Spring Boot, Laravel, and Nest.
Development Operations
Experience with JUnit, Nunit, PyUnit, TestCafe, Mocha, Jest, Scrum, Agile, GIT, Azure DevOps, and Docker for efficient development workflows.
Mobile Development
Experience developing cross-platform mobile applications using React Native for both iOS and Android devices.
Expertise in building scalable web applications using React, Node.js, and MongoDB with 5 years of experience designing and developing robust solutions.
API Integration & Development
Experience developing REST APIs and serverless functions, integrating third-party APIs like Stripe and PayPal, and creating reusable components to reduce development time.
Performance Optimization
Skilled in implementing performance optimizations across front-end and back-end, resulting in significant improvements in page speed, system performance, and user experience.
Frontend Technologies
Proficiency in HTML, CSS, JavaScript, Angular, React, Vue, Redux, TypeScript, Backbone, Bootstrap, Tailwind CSS, React Native, Next.js, and Nuxt.
Backend Technologies
Knowledge of Python, NumPy, SciPy, Scikit-learn, Keras, Eli5, TensorFlow, MySQL, Node.js, Redis, AWS, MongoDB, Spark, HTTP/2, PostgreSQL, Java Spring Boot, Laravel, and Nest.
Development Operations
Experience with JUnit, Nunit, PyUnit, TestCafe, Mocha, Jest, Scrum, Agile, GIT, Azure DevOps, and Docker for efficient development workflows.
Mobile Development
Experience developing cross-platform mobile applications using React Native for both iOS and Android devices.
Experience
Professional experience5 - 10 years
Freelancer since2024
Languages
EnglishFluent
Project history
Led end-to-end development of scalable web applications using React, Node.js and MongoDB, improving system performance and user experience by 30%. Spearheaded the integration of Stripe and PayPal APIs, decreasing transaction processing time by 15% and cart abandonment rates by 10%. Guided junior developers through comprehensive training, resulting in 40% reduction in code defects and improved coding efficiency by 25%. Implemented performance optimizations across front-end and back-end, resulting in 20% boost in page speed and conversion rates.
Developed REST APIs and serverless functions, processing over 500,000 transactions monthly with 99.99% uptime, reduced processing time by 30% using Next.js, Express.js and PostgreSQL. Built automated dashboards and admin panels, reducing manual workload by an average of 15 hours per week for clients. Collaborated with 20+ clients to translate business needs into technical solutions, improving operational efficiency and customer satisfaction. Developed a cross-platform taxi application using React Native, enabling seamless ride booking and real-time tracking on both iOS and Android devices.
Maintained over 15 responsive websites, improving mobile performance and increasing client retention by 25%. Optimized websites for SEO and Core Web Vitals, boosting Google search rankings by 20% across multiple projects. Standardized cross-browser compatibility testing using BrowserStack and Cypress across 15+ websites, leading to a 40% reduction in reported UI bugs and faster resolution times.