Armen Rui

Results-driven Senior Shopify & AI Developer with 7+ years of experience building high-performing eCommerce platforms, AI-powered applications, and scalable web solutions for global clients. Specialized in Shopify Plus, custom app development, AI automation, and modern fullstack technologies including React, Next.js, Node.js, and cloud infrastructure. Proven track record of increasing conversion rates, optimizing store performance, and streamlining business operations through intelligent automation and seamless user experiences.

Experienced in leading end-to-end development, integrating third-party APIs, implementing AI-driven workflows, and delivering scalable solutions for fast-growing brands.

Senior Shopify AI Developer - Mobikasa - New York, United States

(2023-05 - 2025-12)

• Led development of custom Shopify and Shopify Plus storefronts, building scalable, high-performance themes with Liquid, JavaScript, and modern frontend frameworks.
• Architected reusable sections, components, and theme structures aligned with Online Store 2.0 standards.
• Built headless commerce solutions with React, Next.js, and the Shopify Storefront API.
• Integrated third-party services across payments, subscriptions, analytics, and marketing tools.
• Optimized Core Web Vitals, SEO, and site performance to improve page speed and support higher conversion rates.
• Partnered with designers, CRO specialists, and backend engineers to deliver conversion-focused user experiences.
• Managed multiple client projects end to end, from discovery and development through deployment and post-launch support.
• Conducted code reviews and mentored junior developers to maintain strong engineering standards.

Shopify Developer - MageCloud - Stuttgart, Germany

(2021-11 - 2023-01)

• Improved conversion rates by 40% by optimizing Core Web Vitals and SEO, enhancing page load times for Shopify stores.
• Built reusable components, sections, and scalable theme architectures following Online Store 2.0 Standards.
• Integrated responsive, pixel-perfect interfaces from Figma design with strong focus on UX and accessibility.
• Optimized Core Web Vitals, SEO performance, and page speed to significantly enhance user experience, reduce load times, and drive higher engagement and conversion rates.
• Delivered 6 pixel-perfect, responsive Shopify interfaces from Figma designs with strong UX and accessibility adherence.

Web Developer - Conclusion - Sao Paulo, Brazil

(2020-12 - 2021-09)

• Designed and delivered a full-stack MERN application with 7 scalable APIs and modular components, improving project maintainability.
• Optimized frontend performance through code splitting, lazy loading, intelligent caching strategies, and bundle optimization, significantly reducing load times and improving Lighthouse performance scores across web applications.
• Implemented responsive, mobile-first CSS layouts across 10 devices and browsers, ensuring consistent UX.
• Collaborated with designers and product teams to prototype and validate 5 features, delivering polished user-centric experiences.
• Engineered pixel-perfect, component-driven Vue.js interfaces by transforming Figma and UX designs into scalable, reusable, and production-ready UI systems with a strong focus on performance, maintainability, and seamless user experience.

Bachelor of Software Engineering - Software Engineering - University of São Paulo (2016 - 2020)