Available to hire
Hi, I’m Jesus Alfonso Romero Arvizu, a passionate software engineer based in Hermosillo, Mexico. I specialize in front-end and full-stack development, creating dynamic and highly interactive web applications. I love optimizing user experiences and ensuring performant, scalable solutions using modern technologies.
With experience in a variety of projects ranging from landing pages to comprehensive web platforms, I am skilled in JavaScript, React, Node.js, and several other web development tools. I’m always eager to learn and grow while contributing to meaningful projects that make an impact.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
Spanish; Castilian
Fluent
English
Advanced
Work Experience
Front-end developer at Freelance
April 1, 2025 - April 30, 2025Designed and developed a dynamic landing page using native JavaScript and modern ES6+ concepts to ensure a highly interactive and performant user experience. Leveraged Git for robust version control, facilitating efficient code management and deployment. Optimized landing page load times by 30%, leading to a 10% improvement in SEO ranking. Implemented a landing page that generated leads.
Full-stack developer at Freelance
January 1, 2024 - January 31, 2024Developed and deployed full-stack web applications by orchestrating key libraries and frameworks for optimal performance and maintainability. Ensured a consistent and responsive user experience with Tailwind CSS, while managing complex application state efficiently using Zustand. Architected secure and scalable back-end services with Express.js, seamlessly connecting to databases via Sequelize, and rigorously enforced CORS protocols for secure API interactions.
Full-stack developer at Freelance
March 1, 2023 - March 31, 2023Engineered and launched comprehensive web applications, implementing RESTful APIs with Node.js to facilitate seamless data flow. Built highly responsive front-ends using the modern JavaScript framework React.js. Designed and optimized PostgreSQL databases for performance and scalability, ensuring data integrity and efficient querying. The final product achieved a 20% improvement in system efficiency and reduced data retrieval times by 30%.
Front-end developer at Freelance
September 1, 2022 - September 30, 2022Developed responsive landing pages, increasing user engagement by 20% and reducing bounce rate by 15%. Optimized image and script loading for faster performance, addressing initial page load speed challenges. Utilized Git for version control, managing code deployments and collaborating with team members. Implemented interactive elements using Bootstrap and modern JavaScript.
Education
Software Engineer at Universidad Estatal de Sonora
August 14, 2022 - May 28, 2026Qualifications
React
January 1, 2022 - December 31, 2022NodeJS
January 1, 2022 - December 31, 2022Software Testing
January 1, 2022 - December 31, 2022Industry Experience
Software & Internet, Professional Services, Computers & Electronics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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