
Ubaid Ullah
Full Stack Web and App Developer
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Portfolio
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Full Stack Web & App Development
Upwork • Freelance
May 2023 - Dec 2025 • 2 yrs 7 mos
Worked as a Full Stack Web Developer, designing and developing modern web applications from concept to deployment. Experienced in building responsive and scalable systems using both frontend and backend technologies while focusing on clean architecture, performance, and user experience. Developed dynamic web applications including management systems, dashboards, e-commerce platforms, and productivity tools. Built interactive user interfaces using modern frameworks and implemented secure backend services with RESTful APIs, authentication systems, and database integration. Handled complete development lifecycle including requirement analysis, database design, API development, frontend implementation, testing, debugging, and deployment preparation. Implemented secure authentication (JWT), role-based access control, input validation, and optimized database queries for performance and reliability. Worked with modern tech stacks such as React, TypeScript, Node.js, Express, MongoDB, and MySQL, along with UI frameworks and animation libraries to create smooth and engaging user experiences. Focused on writing clean, maintainable code and delivering structured projects suitable for real-world applications and academic environments.