Benjamin López
I'm a results-driven Computer Systems Engineer with 7+ years of experience crafting scalable solutions for industries like fintech and e-commerce.
As a Full-Stack Developer, I bridge the gap between engineering and business—transforming complex problems into elegant, performant applications with Javascript technologies and many other frameworks I have worked with. My passion lies in optimizing processes, mentoring junior developers, and architecting systems that balance speed, security, and user experience.
When I'm not coding, you'll find me diving into open-source projects, spending time with my family, or playing my Les Paul Signature guitar.
Portfolio

Happilyfe
App for IOS and Android
Happilyfe is a mobile app that helps people rediscover their rhythm through:
- Daily wellness tools – Simple practices for better days
- Guided reflection – Quick exercises to pause and check in
- Life assessment – Spot areas to focus on and grow
- Your inner circle – Share progress with close ones
Achievements:
- Developed the frontend using Next.js, Typescript, and RN Elements as a UI library.
- Implemented Firebase as our backend, using Firestore for real-time data synchronization and authentication.
- Collaborated with designers, junior developers, product managers, and QA engineers under Agile methodologies.
- Managed the full release lifecycle for both the App Store and Google Play, including beta testing.

Gran México
E-commerce of Mexican Products
Gran México is one of the most important e-commerce platforms in México. I developed this project 6 years ago using WordPress and WooCommerce, and it has grown to expand to the United States. I recently migrated the frontend to Next JS, implementing a headless WordPress architecture, having a much better performance and user experience.
Recently, I gave the site a major upgrade by rebuilding the frontend with Next.js. This strategy allowed us to decouple the frontend from WordPress, resulting in a significant performance boost and a more seamless user experience. I used several APIs to fetch data from WordPress, including the REST API, GraphQL, and Cocart, which is a custom API for WooCommerce. This approach not only improved the site's speed but also made it more flexible and easier to maintain.
- Implemented headless WordPress with Static Site Generation (SSG), improving load times by ~60% for product/category pages.
- Integrated Builder.io, a no-code page builder, enabling the marketing team to drag-and-drop pages without developer dependency.
- Architected the platform’s expansion to the U.S. market, ensuring multi-region compliance (taxes, payments, localization).
- Improved SEO strategy while maintaining excellent Core Web Vitals (LCP under 0.5s, CLS under 0.1 and FCP under 0.6s).

Vizana
E-commerce
This was my debut e-commerce project using WordPress and WooCommerce, 6 years ago. I am proud to say that it is still running and generating revenue.
Achievements:
- Developed the frontend using WordPress, WooCommerce, and WpBakery as a page builder.
- Implemented a custom theme with advanced features like product filtering, AJAX add-to-cart, and dynamic pricing.
- Integrated payment gateways (Stripe, PayPal) and shipping options.
Websites
I have built over 100 websites in my career using WordPress, Joomla, Next.js, and Laravel.
Skills
CSS
HTML
React Native
WordPress
Javascript
Next JS
React JS
SEO
Git
Adobe XD
Hubspot







Services
WEB DEVELOPMENT
Creation of websites from scratch or with a CMS of your choice. I train you so that you can make changes yourself once the project is finished.
LANDING PAGE CREATION
Creation of landings pages with a marketing approach. View detailed statistics of your website traffic without complications.
SEO AND SEM OPTIMIZATION
Are you looking to appear in the first positions of Google? I optimize your site so that your potential clients can find you through organic searches.
APP DEVELOPMENT
Do you want to build an app? I can help you. I know the way to carry out an app and have it published in the App Store / Google Play. All in a single project, without complications.
E-COMMERCE DEVELOPMENT
Do you want to start selling on the internet and you don't know how? Do you already have an e-commerce but don't have clients? Let's talk then.
WEB DESIGN
Web design is essential for any website, it allows the user to feel confident and secure. Update your site with me.