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Hi, I'm Yassine Khayri, a detail-oriented Software Engineer with over 4 years of experience building performant, user-centric applications. I specialize in front-end technologies such as HTML, SCSS, JavaScript, TypeScript, and React, and have extensive experience working with WordPress and Elementor CMS. Recently, I've been focusing on AI development as a prompt engineer, improving large language model outputs through code analysis and system testing using C++ and JavaScript/TypeScript. Throughout my career, I have taken pride in delivering scalable and efficient web applications while collaborating closely with back-end developers. I am passionate about debugging, SEO optimization, UX/UI design, and game development. I continuously strive to sharpen my skills and enjoy working remotely on challenging projects that leverage my expertise in both software engineering and AI prompt engineering.…Hi, I'm Yassine Khayri, a detail-oriented Software Engineer with over 4 years of experience building performant, user-centric applications. I specialize in front-end technologies such as HTML, SCSS, JavaScript, TypeScript, and React, and have extensive experience working with WordPress and Elementor CMS. Recently, I've been focusing on AI development as a prompt engineer, improving large language model outputs through code analysis and system testing using C++ and JavaScript/TypeScript. Throughout my career, I have taken pride in delivering scalable and efficient web applications while collaborating closely with back-end developers. I am passionate about debugging, SEO optimization, UX/UI design, and game development. I continuously strive to sharpen my skills and enjoy working remotely on challenging projects that leverage my expertise in both software engineering and AI prompt engineering.

Yassine Khayri

AI Prompt Engineer, Front-End Developer, Back-End Developer, +1

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Hi, I'm Yassine Khayri, a detail-oriented Software Engineer with over 4 years of experience building performant, user-centric applications. I specialize in front-end technologies such as HTML, SCSS, JavaScript, TypeScript, and React, and have extensive experience working with WordPress and Elementor CMS. Recently, I've been focusing on AI development as a prompt engineer, improving large language model outputs through code analysis and system testing using C++ and JavaScript/TypeScript. Throughout my career, I have taken pride in delivering scalable and efficient web applications while collaborating closely with back-end developers. I am passionate about debugging, SEO optimization, UX/UI design, and game development. I continuously strive to sharpen my skills and enjoy working remotely on challenging projects that leverage my expertise in both software engineering and AI prompt engineering.…Hi, I'm Yassine Khayri, a detail-oriented Software Engineer with over 4 years of experience building performant, user-centric applications. I specialize in front-end technologies such as HTML, SCSS, JavaScript, TypeScript, and React, and have extensive experience working with WordPress and Elementor CMS. Recently, I've been focusing on AI development as a prompt engineer, improving large language model outputs through code analysis and system testing using C++ and JavaScript/TypeScript. Throughout my career, I have taken pride in delivering scalable and efficient web applications while collaborating closely with back-end developers. I am passionate about debugging, SEO optimization, UX/UI design, and game development. I continuously strive to sharpen my skills and enjoy working remotely on challenging projects that leverage my expertise in both software engineering and AI prompt engineering.

Available to hire

Hi, I’m Yassine Khayri, a detail-oriented Software Engineer with over 4 years of experience building performant, user-centric applications. I specialize in front-end technologies such as HTML, SCSS, JavaScript, TypeScript, and React, and have extensive experience working with WordPress and Elementor CMS. Recently, I’ve been focusing on AI development as a prompt engineer, improving large language model outputs through code analysis and system testing using C++ and JavaScript/TypeScript.

Throughout my career, I have taken pride in delivering scalable and efficient web applications while collaborating closely with back-end developers. I am passionate about debugging, SEO optimization, UX/UI design, and game development. I continuously strive to sharpen my skills and enjoy working remotely on challenging projects that leverage my expertise in both software engineering and AI prompt engineering.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Arabic

Fluent

French

Intermediate

Work Experience

Coding Prompt Engineer / AI/LLM Evaluation Specialist at Scale AI

July 1, 2025 - September 4, 2025

Formulated over 700 prompts to test model capabilities in generating correct and efficient JavaScript and C++ code. Evaluated the accuracy, efficiency, and quality of more than 1,800 code responses from large language models. Reviewed and improved generated responses. Tested models’ front-end capabilities by writing complex prompts and fixing code using HTML, CSS, JavaScript, React/Next, Tailwind CSS and TypeScript.

Front-End Developer Intern at Open Development & Education

April 1, 2024 - September 4, 2025

Developed a professional and visually compelling website using WordPress, Elementor, PHP, and CSS precisely following Figma designs. Created a webpage listing company websites with HTML, CSS, SASS, and JavaScript. Collaborated with back-end developers on a publication management web application using ReactJS and TypeScript to enhance performance and scalability.

Front-End Developer (Freelance)

November 1, 2020 - Present

Designed and developed a robust analytic web application with HTML, CSS, SASS, and JavaScript to enable data-driven decision making. Debugged and fixed critical issues in existing codebases improving website performance and user experience. Transformed Figma designs into pixel-perfect, responsive websites and applications using HTML, CSS, JavaScript, and ReactJS. Created multiple professional multi-language websites using WordPress, Elementor, CSS, and PHP.