Roberto Matias

Available to hire

I’m a full-stack e-commerce developer with more than 10 years of experience building high-performing online stores, web applications, and mobile apps.

About

I’m a full-stack e-commerce developer with more than 10 years of experience building high-performing online stores, web applications, and mobile apps. I specialize in Shopify, WooCommerce, WordPress, Wix, Webflow, and Squarespace, combining modern frontend and backend technologies to create scalable, user-friendly digital products. I’ve delivered more than 260 projects, from initial concept and design through development, deployment, and post-launch support.

I enjoy solving complex technical challenges and helping businesses grow through faster websites, stronger technical SEO, and conversion-focused experiences. My background includes headless commerce, custom integrations, mobile applications, SaaS platforms, performance optimization, and team leadership. I’m especially proud of improving load times from six seconds to under two seconds, increasing conversions by up to 60%, and building long-term partnerships with clients and development teams.

  • Joined November 2026

Languages

  • EnglishFluent

Industry experience

  • Education
  • Computers & Electronics
  • Healthcare
  • Gaming
  • Professional Services
  • Travel & Hospitality
  • Financial Services
  • Government
  • Software & Internet
  • Real Estate & Construction
  • Retail

More experts in New York, United States

Projects · 1

Restaurant Website Design & Front-End Development

I developed a modern, visually appealing website for a restaurant focused on creating a strong first impression and simplifying the process for diners to learn about the menu, atmosphere, and key information. The design combines captivating imagery of dishes, clean typography, intuitive navigation, a responsive layout, and clear calls to action, creating a seamless digital experience across all devices. I focused on balancing the restaurant's visual identity and usability, creating a website that not only looks premium but also naturally guides diners through the menu and into their visit.

  • Back-End Developer
  • eCommerce Developer
  • Front-End Developer
  • +2

Work experience· 5 roles

Principal Full-Stack Developer · NorthDigital Agency / Andes Web LabsNov 2026 – Present · 1 mo

✔ Partnered with 60+ startups and established brands to deliver end-to-end e-commerce ecosystems: web stores, admin dashboards, and companion mobile applications. ✔ Built cross-platform mobile apps using Flutter and React Native for iOS and Android, with deep integration into Shopify and WooCommerce backends. ✔ Developed full-stack SaaS platforms and custom business tools with Next.js, Node.js, PHP/Laravel, and PostgreSQL/MySQL. ✔ Conducted comprehensive CRO and technical SEO audits, implementing changes that improved client conversion rates by 25–60% and reduced bounce rates significantly. ✔ Maintained a 95% client retention rate through proactive communication, post-launch optimization cycles, and long-term growth partnerships. ✔ Introduced automated CI/CD pipelines and testing frameworks, cutting deployment errors by 80% and release cycles from weeks to days.

Principal Full-Stack Developer · NorthDigital Agency / Andes Web LabsApr 2023 – Dec 2026 · 3 yrs 9 mos

Partnered with more than 60 startups and established brands to deliver complete e-commerce ecosystems, including online stores, administration dashboards, and mobile applications. Built cross-platform iOS and Android apps with Flutter and React Native, integrating them with Shopify and WooCommerce backends. Developed SaaS platforms and custom business tools with Next.js, Node.js, PHP, Laravel, PostgreSQL, and MySQL. Conducted CRO and technical SEO audits that improved conversion rates by 25–60%. Introduced automated CI/CD pipelines and testing frameworks, reducing deployment errors by 80% and shortening release cycles from weeks to days.

Lead E-commerce Developer · CommerceFlow SystemsJan 2021 – Mar 2023 · 2 yrs 3 mos

✔ Led front-end and back-end development for high-volume Shopify Plus stores serving enterprise DTC brands with $10M+ annual revenue. ✔ Architected headless commerce frontends with React and Next.js, integrated with Shopify Storefront API and Liquid backends for sub-second load experiences. ✔ Developed custom Shopify private and public apps using Node.js, Liquid, and GraphQL — including inventory sync tools, wholesale portals, and subscription managers. ✔ Achieved 90+ PageSpeed Insights scores across the client portfolio through aggressive performance tuning, lazy loading, and edge caching strategies. ✔ Managed a distributed team of 5 developers across US and LATAM, conducting code reviews, sprint planning, and technical mentorship. ✔ Delivered 50+ projects annually with a 98% on-time completion rate and zero critical post-launch defects.

Lead E-commerce Developer · CommerceFlow SystemsJul 2020 – Mar 2023 · 2 yrs 9 mos
Senior Full-Stack E-commerce Developer · WebNova Digital SolutionsJun 2018 – Nov 2020 · 2 yrs 6 mos

Education

Master's Degree in Information Technology and Systems · Universidad Nacional de Lomas de Zamora2016 – 2018

Field of Study: Software Engineering & Web Systems Architecture2016 – 2018 Specialized in distributed systems architecture, database design, and software engineering methodologies. Thesis research focused on performance optimization techniques for high-traffic e-commerce platforms, specifically analyzing caching strategies, CDN implementation, and database query optimization to achieve sub-2-second page loads under heavy concurrent user load.

Master's Degree in Information Technology and Systems · Universidad Nacional de Lomas de Zamora2016 – 2018

Certifications and awards

Shopify Partner & Theme Developer Certification2023 – 2030
Google Analytics 4 Certified2022 – 2026
Meta Blueprint Certified2020 – 2030

Hire Roberto Matias today

Post a job and invite Roberto, or contact them directly. No hidden commission.

Post a job