Marvin Ajin Alvarado

Senior Engineer & Founder

Guatemala · Remote-friendly · 14.6°N 90.5°W

Commerce that feels instant.

Marvin Ruben Ajin Alvarado Frontend Developer Senior, Shopify Expert & Technical Project Manager

Work Contact Marvin

Brands

  • Columbia Sportswear
  • Fabletics
  • Cole Haan
  • Skechers
  • Black Halo
  • DraftKings
  • 686
  • Alpha Industries
  • Overlap GT
  • ASCAN
  • Priscila Melgar

Profile

Over 10 years making storefronts load faster, rank higher and ship on time for brands across four markets. Shopify certified three times over, Google Developers Expert, and still the person who writes the Liquid.

Work

Custom builds

Sites designed and engineered from scratch with Astro and Tailwind CSS — static output, no page-weight tax, accessible by default.

Shopify

Shopify frontend development

Shopify theme builds and feature development as a frontend engineer at Studio31.io & Grupo Disresa — working alongside international brands on Liquid, custom sections, and performance.

WordPress

WordPress builds

Custom WordPress sites developed as a frontend engineer at Studio31.io — theme development, custom blocks, and performance tuning for client brands.

Project Management

Shopify projects — PM

Shopify projects delivered as Technical Project Manager at Studio31.io — coordinating cross-functional teams, scoping work, and driving launches for international brands.

Career

Professional experience

  1. Grupo Disresa

    Frontend Developer Senior & Shopify Expert

    Current

    Develops and optimizes high-performance e-commerce experiences for brands including Columbia, Fabletics, Cole Haan, and Skechers. Focuses on Shopify Liquid development, performance optimization, and conversion-driven frontend architecture.

  2. Panadelys

    Senior Programmer Analyst

    Analyzed, designed, and implemented business-critical software solutions. Translated functional requirements into technical specifications. Conducted code reviews and architecture validations while collaborating with product owners, QA, and development teams.

  3. Mana de Vida

    Technical Project Manager

    Designed and implemented an internal Help Desk system that improved ticket tracking and resolution by 70%. Coordinated cross-department workflows, led internal training programs, and reported to executive leadership.

  4. Studio31

    Technical Project Manager

    Managed digital projects for international clients. Handled requirements gathering, scope definition, resource allocation, and CI/CD coordination. Served as the bridge between clients and development teams.

  5. Studio31

    Frontend Developer & Shopify Specialist

    Built responsive web applications with React, Angular, and Shopify Liquid for premium US-based clients. Converted Figma designs into conversion-optimized e-commerce stores with reusable component architecture.

  6. Ambition Profile, Sweden

    Frontend Developer

    Developed and maintained UI components with AngularJS for an international team. Built reusable modules, collaborated with design and backend teams, and contributed to frontend architecture improvements.

Expertise

  • React
  • Angular
  • Next.js
  • Astro
  • TypeScript
  • JavaScript
  • HTML5
  • CSS3
  • Tailwind CSS
  • Shopify Liquid
  • Theme Development
  • E-commerce Optimization
  • Conversion Rate Optimization
  • Store Customization
  • Agile/Scrum
  • Roadmap Planning
  • Stakeholder Communication
  • Cross-functional Leadership
  • Requirements Gathering
  • SEO Best Practices
  • UI/UX Implementation
  • Figma to Code
  • Responsive Design
  • Accessibility
  • AWS (Cognito, S3, Lambda, Amplify)
  • CI/CD Pipelines
  • GitHub
  • Bitbucket
  • Node.js
  • REST APIs

Credentials

Contact

Let's connect

Interested in working together, or have a project in mind? WhatsApp is fastest — Guatemala or the US, whichever suits you. Email and LinkedIn work too.

hello@marvin.lat LinkedIn — in/marvinalvaradoo (opens in a new tab)