Yassine Khayri

Software
Engineering

Graphic
Design

Yassine Khayri

About me

Hi, I’m Yassine — a software engineer with 4+ years of experience, specializing in front-end development and pixel-perfect websites using React, TypeScript, and WordPress. I have a strong foundation in modern UI/UX principles and a deep knowledge of HTML, CSS, and JavaScript. I’m also skilled in C/C++ and enjoy building both complex systems and user-friendly web apps. I can manage projects end-to-end and thrive in both solo and team environments.

Currently, I work as a Technical Interviewer at SME Careers, where I assess candidates’ technical skills and problem-solving abilities in software development. Previously, I worked as a Coding Prompt Engineer and QA Engineer, evaluating and refining responses and code generated by large language models (LLMs), identifying weaknesses, and improving outputs to ensure precision and reliability.

My timeline

2025

Technical Interviewer

SME Careers

  • Conduct technical interviews across various programming languages and technologies of your expertise.
  • Develop structured interview questions to effectively evaluate the candidate.
  • Update a database of interview feedback and candidate evaluations.
  • Technical Skills:
  • JavaScript
2024

Coding prompt engineer

Scale AI

  • Formulating +500 prompts that test models’ ability to generate correct and efficient code (JavaScript and C++).
  • Evaluating the accuracy, efficiency, and quality of +1200 code and responses produced by the LLM.
  • Correcting and improving the generated responses and other taskers submissions on the reviewer level.
  • Putting to the test the models’ front-end capabilities by writing complicated prompts and evaluating and fixing the UI and code generated using HTML, CSS, JavaScript or React/Next, Tailwind CSS and TypeScript.
  • Technical Skills:
  • HTML5 CSS3 Tailwind JavaScript TypeScript ReactJS nextjs C C++ python
2023

Front-End Developer

OpenDevEd

  • Built a professional and visually compelling website using WordPress, Elementor, PHP, and CSS for the company, precisely adhering to Figma design specifications.
  • Designed and developed a webpage listing the company websites using HTML, CSS, SASS, and JavaScript.
  • Collaborated with the back-end developers to contribute to the development of a publication management web application using ReactJS and TypeScript, enhancing application performance and scalability.
  • Technical Skills:
  • HTML5 CSS3 SASS Tailwind JavaScript TypeScript ReactJS MaterialUI WordPress Elementor PHP maria Git Figma Bash
2020

Front-End Developer

Freelance

  • Designed and developed a robust analytic web application using HTML, CSS, SASS, and JavaScript, enabling clients to make data-driven decisions effectively.
  • Debug and fix critical issues in existing codebases, improving websites performance and user experience.
  • Transformed Figma designs into pixel-perfect, responsive websites and web applications using HTML, CSS, JavaScript, and ReactJS.
  • Designed and created multiple professional multi-lang websites using WordPress, Elementor, CSS and PHP.
  • Technical Skills:
  • HTML5 CSS3 SASS Bootstrap JavaScript JQuery TypeScript ReactJS MaterialUI WordPress Elementor PHP MySQL Git Figma Bash
2019

Associate of Science (Incomplete)

Faculty of Science and Technology

  • Completed coursework in algorithms and data structures.
  • Completed coursework in C programming.
  • Completed coursework in Database design with SQL.
  • Technical Skills:
  • C MySQL maplesoft R

Projects

Bellow are some of the projects I built or worked on

GUL HR

GUL HR - project
WordPress Elementor PHP CSS3

LXH Consulting

LXH Consulting - project
WordPress Elementor PHP CSS3

My Education Evidence

My Education Evidence - project
react sass CSS3 javascript typescript materialui

Evidence in Education

Evidence in Education - project
HTML5 CSS3 SASS javascript.svg

OpenDevEd

OpenDevEd - project
WordPress Elementor PHP CSS3

Portfolio 2.0

Portfolio 2.0 - project
react sass CSS3 javascript typescript

Zelda - So long

Zelda - So long - project
C

WSPR

WSPR - project
HTML5 CSS3 SASS javascript.svg MySQL

Services

Need someone you can rely on? Here’s how I can help.

Custom Web Development

I build fast, responsive, and user-focused websites using modern technologies like React, TypeScript, and JavaScript. Whether it’s a marketing site or a data-driven dashboard, I deliver clean, maintainable code optimized for performance.

HTML5 CSS3 SASS javascript.svg typescript react materialui

WordPress & Elementor Development

Need a site you can update yourself? I design and develop fully customized WordPress websites using Elementor, tailored to your brand and easy to manage without technical knowledge.

WordPress Elementor PHP CSS3

UI/UX Implementation

I translate Figma or Adobe XD designs into clean, accessible frontend code. I pay special attention to spacing, responsiveness, accessibility, and cross-browser consistency.

CSS3 SASS figma Tailwind

Optimization & Refactoring

Already have a program, website, or web app? I help speed it up, clean the code, and improve maintainability. Great for teams planning future feature expansion.

HTML5 SASS javascript.svg typescript react c cplusplus

Prompt Engineering & LLM Evaluation

I work with AI and large language models (LLMs) to evaluate, improve, and debug generated code or content. I can help you fine-tune prompts, test outputs, and improve reliability.

HTML5 CSS3 javascript.svg typescript react c cplusplus

Contact

Collaboration? Work opportunity? Potential freelance work? Or just a coffee to chat?
I'm eager to explore possibilities. Feel free to reach out!