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Hello! I'm Mario Andres, a Senior Full-Stack Engineer with a decade of experience delivering scalable software for e-commerce, fintech, healthcare, and SaaS. I enjoy turning complex problems into robust, user-friendly features and leading cross-functional teams to ship high-quality products. As a mentor, I focus on guiding junior engineers, fostering collaboration, and ensuring reliable deliveries by emphasizing code quality, testing, and strong front-end to back-end interfaces. I value practical, data-driven decisions and a friendly, collaborative work culture.…Hello! I'm Mario Andres, a Senior Full-Stack Engineer with a decade of experience delivering scalable software for e-commerce, fintech, healthcare, and SaaS. I enjoy turning complex problems into robust, user-friendly features and leading cross-functional teams to ship high-quality products. As a mentor, I focus on guiding junior engineers, fostering collaboration, and ensuring reliable deliveries by emphasizing code quality, testing, and strong front-end to back-end interfaces. I value practical, data-driven decisions and a friendly, collaborative work culture.

Mario Andres

Full Stack Developer, Front-End Developer, Back-End Developer, +2

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Hello! I'm Mario Andres, a Senior Full-Stack Engineer with a decade of experience delivering scalable software for e-commerce, fintech, healthcare, and SaaS. I enjoy turning complex problems into robust, user-friendly features and leading cross-functional teams to ship high-quality products. As a mentor, I focus on guiding junior engineers, fostering collaboration, and ensuring reliable deliveries by emphasizing code quality, testing, and strong front-end to back-end interfaces. I value practical, data-driven decisions and a friendly, collaborative work culture.…Hello! I'm Mario Andres, a Senior Full-Stack Engineer with a decade of experience delivering scalable software for e-commerce, fintech, healthcare, and SaaS. I enjoy turning complex problems into robust, user-friendly features and leading cross-functional teams to ship high-quality products. As a mentor, I focus on guiding junior engineers, fostering collaboration, and ensuring reliable deliveries by emphasizing code quality, testing, and strong front-end to back-end interfaces. I value practical, data-driven decisions and a friendly, collaborative work culture.

Available to hire

Hello! I’m Mario Andres, a Senior Full-Stack Engineer with a decade of experience delivering scalable software for e-commerce, fintech, healthcare, and SaaS. I enjoy turning complex problems into robust, user-friendly features and leading cross-functional teams to ship high-quality products.

As a mentor, I focus on guiding junior engineers, fostering collaboration, and ensuring reliable deliveries by emphasizing code quality, testing, and strong front-end to back-end interfaces. I value practical, data-driven decisions and a friendly, collaborative work culture.

Skills

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Work Experience

Senior Full-Stack Engineer

July 20, 2022 - Present

Leading the evolution of the full-stack architecture for a high-traffic platform, optimizing performance, scalability, and long-term maintainability across frontend and backend layers. Built complex features using React, Next.js, and TypeScript on the frontend, with Node.js and Express on the backend, integrating RESTful APIs and GraphQL to enable seamless communication between layers. Improved page load times by 30% and boosted Google PageSpeed scores through code splitting, lazy loading, and efficient rendering. Guided 20+ engineers with code reviews and best practices, and coordinated cross-functional teams to deliver high-quality features on schedule. Integrated third-party APIs and backend services to extend platform functionality, and collaborated with UI/UX teams to deliver accessible, responsive interfaces. Automated CI/CD pipelines using AWS, Docker, and Node.js to improve deployment speed, reliability, and scalability. Drove ongoing performance optimizations and cross-functio

Frontend Engineer

August 20, 2019 - June 20, 2022

Developed production-grade web applications with fast, reliable, and scalable performance for end users. Built reusable component libraries and state management solutions with React, Redux, and TypeScript, leveraging Next.js for server-side rendering. Integrated RESTful APIs and GraphQL backends to enable robust data delivery. Improved front-end performance through code splitting, lazy loading, and responsive design. Collaborated with backend engineers to optimize data handling and with UI/UX teams to deliver accessible interfaces across devices. Contributed to frontend testing with Jest and React Testing Library, and helped establish tooling to boost development speed and consistency. Mentored junior developers and supported cross-functional teams to deliver features on time.

Frontend Developer

June 20, 2015 - June 20, 2019

Built production-grade web applications, ensuring fast, reliable, and scalable performance for end users. Contributed to reusable component libraries to accelerate development and foster collaboration. Led API integration efforts and designed state management solutions to improve data flow and reliability. Optimized performance through code splitting and lazy loading, resulting in faster load times and smoother user experiences. Worked closely with cross-functional teams to deliver high-quality features on schedule.