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Hi, I'm Youssef Yasser Mostafa, a full-stack software engineer focused on building production-ready web and mobile systems using Flutter, React, and Node.js. I enjoy turning ideas into clean, scalable architectures and delivering user-centric solutions from concept to deployment.\n\nI'm passionate about UX, performance, and maintainability, and I collaborate with cross-functional teams to ship features that matter. I thrive under challenges and continuously seek opportunities to improve code quality, architecture, and dev workflows.…Hi, I'm Youssef Yasser Mostafa, a full-stack software engineer focused on building production-ready web and mobile systems using Flutter, React, and Node.js. I enjoy turning ideas into clean, scalable architectures and delivering user-centric solutions from concept to deployment.\n\nI'm passionate about UX, performance, and maintainability, and I collaborate with cross-functional teams to ship features that matter. I thrive under challenges and continuously seek opportunities to improve code quality, architecture, and dev workflows.

Youssef Yasser Mostafa

Full Stack Developer, Web Developer, Front-End Developer, +4

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Hi, I'm Youssef Yasser Mostafa, a full-stack software engineer focused on building production-ready web and mobile systems using Flutter, React, and Node.js. I enjoy turning ideas into clean, scalable architectures and delivering user-centric solutions from concept to deployment.\n\nI'm passionate about UX, performance, and maintainability, and I collaborate with cross-functional teams to ship features that matter. I thrive under challenges and continuously seek opportunities to improve code quality, architecture, and dev workflows.…Hi, I'm Youssef Yasser Mostafa, a full-stack software engineer focused on building production-ready web and mobile systems using Flutter, React, and Node.js. I enjoy turning ideas into clean, scalable architectures and delivering user-centric solutions from concept to deployment.\n\nI'm passionate about UX, performance, and maintainability, and I collaborate with cross-functional teams to ship features that matter. I thrive under challenges and continuously seek opportunities to improve code quality, architecture, and dev workflows.

Available to hire

Hi, I’m Youssef Yasser Mostafa, a full-stack software engineer focused on building production-ready web and mobile systems using Flutter, React, and Node.js. I enjoy turning ideas into clean, scalable architectures and delivering user-centric solutions from concept to deployment.\n\nI’m passionate about UX, performance, and maintainability, and I collaborate with cross-functional teams to ship features that matter. I thrive under challenges and continuously seek opportunities to improve code quality, architecture, and dev workflows.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Frontend Developer Intern at Otpus, Egypt

September 30, 2023 - September 30, 2023

Developed and optimized 5+ responsive UI components using React & Tailwind CSS, improving page load speed by 30%. Collaborated with backend engineers to integrate RESTful APIs, ensuring seamless data flow and real-time updates. Implemented modern frontend best practices (component reusability, lazy loading, accessibility) to enhance UX for over 1,000 monthly users.

Frontend Developer Intern at Azraq (Salla Platform), Egypt

July 1, 2025 - July 1, 2025

Improved storefront user experience by analyzing issues and applying design enhancements. Customized and extended Salla themes using Liquid templating and CSS, achieving better responsiveness and modern UI. Gained hands-on experience with e-commerce workflows including theme customization, product catalog management, and content structuring.

Frontend Developer Intern at Otpus

September 1, 2023 - September 1, 2023

Frontend Developer Intern at Azraq (Salla Platform)

July 1, 2025 - July 1, 2025

Improved user experience by analyzing storefront issues and applying design enhancements. Customized and extended Salla themes using Liquid templating and CSS, achieving better responsiveness and modern UI. Gained hands-on experience with e-commerce workflows including theme customization, product catalog management, and content structuring.

Full Stack Developer Intern (Next.js) at Tech Startup, Germany

December 1, 2025 - February 1, 2026

Worked directly on the live production system with code deployed and used in the application. Developed both frontend and backend features using Next.js within the core product codebase. Contributed to resolving several technical issues faced by the team during production. Worked under tight delivery deadlines and real production pressure. Proposed technical and UX improvements, several of which were adopted. Participated in performance, architecture, hosting, and deployment improvements.

Flutter Developer Intern at carboplanner

September 1, 2025 - December 1, 2025

Contributed directly to the core Flutter product codebase, delivering production-level features beyond training tasks. Implemented features and improvements shipped to the live mobile application available on app stores. Proposed and drove practical product and technical improvements that were accepted and integrated into production. Helped enhance internal development workflows, supporting faster and more reliable feature delivery. Collaborated daily with the engineering team through task planning, reviews, and feature iterations. Code contributions were released to production and used by active customers.

Full Stack Developer Intern (Next.js) at Tech Startup

December 1, 2025 - February 1, 2026

Worked directly on the live production system with code deployed and used in the application. Developed frontend and backend features using Next.js within the core product codebase. Resolved production issues under tight deadlines. Proposed technical and UX improvements, several of which were adopted. Participated in performance, architecture, hosting, and deployment improvements.