Juan Gabriel Espinoza

Frontend Developer

2024

Frontend Developer

2021 - 2024

• Contributed to the back-office development of a wallet from Panama, implementing key features such as user management, virtual card tracking, and secure login/logout systems using React, Next.js, and TypeScript. • Engaged in the development of a leading telecommunications and media company in Mexico, focusing on satellite TV, mobile plans, and internet services. Utilized React, Next.js, TypeScript, MaterialUI, XState, and NX within a large-scale mono repo architecture to create and maintain shared components across web and mobile applications. • Developed and maintained frontend components for a leading provider of RF and microwave components. Worked with Adobe AEM, JavaScript, and jQuery to improve the checkout pay flow, fix existing components, and implement content changes. Reached the MVP stage with the project, leading to a 40% increase in traffic. Provided demos to showcase the fixes and improvements, ensuring the client’s requirements were met effectively. • Provided technical support and guidance to new team members, assisting them with environment setup and project workflow.

Software Developer

2023 - 2023

• Reviewed and corrected code written in JavaScript, React, HTML5, and Python, utilizing libraries such as Matplotlib, Pandas, and PyTorch. Focused on algorithms and data structures, particularly in the context of training LLMs through human reinforcement learning. • Collaborated closely with other team members to ensure code quality and consistency across projects. Assisted in onboarding new team members and participated in war rooms to troubleshoot and resolve critical issues during project rollouts.

Software Developer Intern

2021 - 2021

• Utilized HTML, CSS, and JavaScript to develop and re-design an engaging, interactive, and intuitive company website. • Built and optimized customer-facing website with a 95% customer satisfaction and an average 5% increase in sales due to improved functionalities and reducing page loading times. • Incorporated responsive web design techniques to ensure company website optimization for mobile and desktop viewing. • Developed and tested company website to ensure a high level of accessibility, scalability and browser compatibility.