Alejandro M.

Alejandro M.

Full Stack Developer

France
Trusted member since 2026
6 years of experience

He has built custom Shopify applications, advanced theme customizations, and API-driven automations for international brands, improving performance and operational efficiency. His experience spans storefront architecture, backend integrations, and third-party system connectivity.

With a background in Electronics Engineering, Alejandro combines analytical thinking with clean, business-oriented development practices. He also mentors developers and ensures technical delivery aligns with commercial objectives.

Main expertise

JavaScriptJavaScript6 years
React.jsReact.js6 years
Node.jsNode.js6 years
REST APIREST API6 years
9+

Experience3

Gradiweb

Full Stack Developer / Shopify Tech Expert

Gradiweb
E-commerce
May 2023 · 3y 2m

Gradiweb is a Shopify-focused e-commerce agency delivering custom storefronts, apps, and automation solutions for European brands.

  • Developed custom Shopify applications using Node.js and React to extend core platform capabilities
  • Implemented advanced Shopify theme customizations, including dynamic sections, custom checkout logic, and performance optimizations
  • Built back-office automation workflows integrating Shopify APIs with third-party services to streamline operations
  • Designed scalable backend services using Express.js and Nest.js for client-specific integrations
  • Led project management activities for French clients, preparing technical proposals and aligning scope with business requirements
  • Ensured API efficiency and storefront performance through structured optimization and best practices
React.jsReact.js
PostgreSQLPostgreSQL
TypeScriptTypeScript
Node.jsNode.js
FlutterFlutter
8+
KMMRCE

Frontend Developer

KMMRCE
E-commerce
Aug 2022 - May 2023 · 9m

KMMRCE is a commerce infrastructure platform focused on building scalable digital storefront ecosystems.

  • Developed storefront applications using Next.js, connected to internal commerce APIs
  • Built modular React UI components to support a reusable, scalable frontend architecture
  • Integrated REST APIs and backend services to power product catalogs, checkout flows, and customer dashboards
  • Contributed to platform-level feature development, improving flexibility for merchants
JavaScriptJavaScript
React.jsReact.js
TypeScriptTypeScript
Node.jsNode.js
Next.jsNext.js
REST APIREST API
Bearaby

Web Developer

Bearaby
E-commerce
Feb 2021 - Jul 2022 · 1y 5m

Bearaby is a direct-to-consumer lifestyle brand operating primarily on Shopify.

  • Managed Shopify backend operations, including product catalog structure, content workflows, and theme customization
  • Developed custom storefront features and UI enhancements tailored to brand campaigns
  • Implemented performance optimizations to improve page speed and conversion rates
  • Conducted A/B testing using Google Optimize to enhance UX and increase revenue
  • Integrated third-party marketing and logistics tools via Shopify APIs
JavaScriptJavaScript
jQueryjQuery
FigmaFigma
ShopifyShopify
REST APIREST API

Assessments

Engineering excellence

Alejandro’s overall performance in a 90-minute live technical assessment ranks in the top 5% of vetted Full Stack Developers at Proxify.

Education

JAP
Jose Antonio Paez University
Electronics Engineering2013 - 2018

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