Juan Diaz
Full Stack Developer - 4 years of experience - English/Spanish - Warsaw/Remote
Stack
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Laravel -
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PHPunit
-
'/%3e%3cellipse%20rx='11'%20ry='4.2'%20transform='rotate(120)'/%3e%3c/g%3e%3c/svg%3e)
React -
Astro -
Typescript
Experience
Full Stack Developer
Ximdex 2023 - 2025
I led the delivery of high-performance platforms for the education sector, including APIs, SaaS tools, and CDN services.
I spearheaded a migration from PHP to Rust for core processes, reducing latency by 90% and optimizing server usage.
I also modernized legacy codebases, improved team workflows with Jira and GitHub standards, and supported onboarding and mentoring of junior developers.
Backend Developer
Cargestion 2021 - 2022
I contributed to the development and maintenance of a large-scale B2B SaaS and API platform used by 140+ car rental agencies across Europe.
I helped deliver scalable fleet and booking solutions, improved code quality through refactoring, and supported clients directly—reducing onboarding time and cutting support tickets by 80%.
I also collaborated closely with the product and DevOps teams to ensure performance and stability.
Projects
SWAIPY
A set of AI tools(SaaS) to convert multimedia content (SCORM, video, audio) into accessible formats for people with different disabilities.
PHP Laravel Astro React TypeScript 
XUI2
XUI2 is a design library for React.
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NPM '%3e%3cpath%20d='M18,13c-1.858,0%20-3.489,-1.297%20-5.748,-3.092c-1.521,-1.209%20-5.006,-1.619%20-5.552,-1.194l-1.407,-1.421c2.053,-2.054%203.293,-3.293%205.707,-3.293c3.018,0%205.214,1.688%206.979,3.046c0.554,0.425%201.077,0.827%201.527,1.092c0.342,0.201%201.073,0.436%201.685,0.253c0.391,-0.115%200.689,-0.39%200.914,-0.838l1.834,0.789c-1.06,2.917%20-3.28,4.658%20-5.939,4.658zM8.983,6.633c1.707,0.234%203.512,0.913%204.514,1.709c2.135,1.698%203.397,2.658%204.503,2.658c0.745,0%201.435,-0.207%202.042,-0.599c-0.611,-0.097%20-1.158,-0.31%20-1.548,-0.539c-0.557,-0.328%20-1.128,-0.767%20-1.732,-1.231c-1.606,-1.234%20-3.425,-2.631%20-5.762,-2.631c-0.786,0%20-1.359,0.176%20-2.017,0.633zM13,20c-1.858,0%20-3.489,-1.297%20-5.748,-3.092c-1.52,-1.208%20-5.006,-1.621%20-5.552,-1.194l-1.407,-1.421c2.053,-2.054%203.293,-3.293%205.707,-3.293c3.018,0%205.214,1.688%206.979,3.046c0.554,0.425%201.077,0.827%201.527,1.092c0.342,0.201%201.073,0.433%201.685,0.253c0.391,-0.115%200.689,-0.39%200.914,-0.838l1.834,0.789c-1.06,2.917%20-3.28,4.658%20-5.939,4.658zM3.983,13.633c1.707,0.234%203.512,0.913%204.514,1.709c2.135,1.698%203.397,2.658%204.503,2.658c0.745,0%201.435,-0.207%202.042,-0.599c-0.611,-0.097%20-1.158,-0.31%20-1.548,-0.539c-0.557,-0.328%20-1.128,-0.767%20-1.732,-1.231c-1.606,-1.234%20-3.425,-2.631%20-5.762,-2.631c-0.786,0%20-1.359,0.176%20-2.017,0.633z'%3e%3c/path%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
Tailwind '%3e%3cpath%20d='M38.70703,3.00195c-0.001,0%20-29.58008,1.8457%20-29.58008,1.8457c-1.1131,0.06978%20-2.02094,1.06188%20-1.98047,2.18164c0,0.0013%200,0.0026%200,0.00391l1.30078,34.66797c0.04164,1.0966%200.92015,1.98256%202.01563,2.03125l28.21289,1.26563c0.02213,0.00049%200.04427,0.00049%200.06641,0c1.14865,0%202.11328,-0.95492%202.11328,-2.10937l-0.00195,-37.81836c0.00033,-0.03126%20-0.00033,-0.06253%20-0.00195,-0.09375c-0.06833,-1.09475%20-1.09101,-1.97461%20-2.14453,-1.97461zM37.85352,6.05469l0.00195,35.90234l-26.44141,-1.18555l-1.23633,-32.98437c1.17471,-0.07358%2012.93021,-0.80887%2020.60156,-1.28906l-0.19922,4.77539c-0.008,0.191%200.14103,0.35333%200.33203,0.36133c0.08,0.003%200.15866,-0.02231%200.22266,-0.07031l2.03125,-1.54101l1.7168,1.35351c0.15,0.119%200.36833,0.09141%200.48633,-0.05859c0.051,-0.064%200.07622,-0.14456%200.07422,-0.22656l-0.16797,-4.875c0.50708,-0.03174%202.43266,-0.153%202.57813,-0.16211zM24.55859,12.0332c-5.069,0%20-7.9082,2.75481%20-7.9082,6.88281c0,4.139%203.21145,5.94066%205.93945,7.47266c2.016,1.131%203.76563,2.1162%203.76563,3.7832c0,1.1%20-0.53761,1.75391%20-1.72461,1.75391c-1.546,0%20-2.15798,-0.79061%20-2.08398,-3.47461c0,-0.581%20-5.89617,-0.763%20-6.07617,0c-0.457,6.505%203.59637,8.38086%208.23438,8.38086c4.493,0%208.01758,-2.39247%208.01758,-6.73047c0,-4.524%20-3.39527,-6.32359%20-6.19727,-7.80859c-1.973,-1.046%20-3.6543,-1.93763%20-3.6543,-3.51562c0,-1.549%201.15003,-1.75391%201.83203,-1.75391c0.72,0%202.01425,0.12658%201.90625,3.01758c0,0.758%205.10311,0.39628%205.78711,-0.13672c0,-5.159%20-2.76889,-7.87109%20-7.83789,-7.87109z'%3e%3c/path%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
Storybook 
About Me
I'm a passionate Full Stack Developer with 4+ years of experience crafting robust web applications and innovative digital solutions. I specialize in building accessible, high-performance applications using modern technologies.
My expertise spans across front-end frameworks like React and Astro, back-end technologies including Laravel and Flask, and I'm particularly focused on creating accessible digital experiences that work for everyone.
Originally from Malaga, Spain, I relocated to Warsaw, Poland to pursue new professional challenges and growth opportunities in its dynamic tech ecosystem.
© 2025 Juan Jose Diaz Hurtado.
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