Hello, I’m Lope Renier.

 WordPress & Web Design | HTML Email Developer 

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AllTrails

Email HTML

Cetaphil

Email HTML

Giftlete

Email HTML

What I offer

Welcome to my freelance services! I specialize in WordPress administration, custom web design, and responsive email development for CRM platforms. Whether you need a high-performance website, a stunning digital presence, or engaging email campaigns, I provide tailored solutions to boost your online success.

✔ Responsive Email Development:

Professionally coded emails that display perfectly across all major CRMs (HubSpot, Mailchimp, ActiveCampaign) and email clients (Gmail, Outlook, Apple Mail, etc.), ensuring high deliverability and click-through rates.

✔ WordPress Administration & Maintenance

Full management of your WordPress site, including security updates, performance optimization, backups, and plugin customization to ensure fast, secure, and hassle-free operation.

✔ Custom Web Design:

From sleek, modern layouts to SEO-optimized and mobile-friendly websites, I create designs that align with your brand and drive user engagement.

Expert HTML Email Development

My experience in developing email templates with MJML focuses on creating technically robust and visually accurate solutions. I use this framework to ensure that each design is translated into clean and stable code, maintaining a pixel-perfect correspondence with the original mockups in Figma or Photoshop.

I take advantage of MJML’s modular structure (with mj-section, mj-column and custom components) to build responsive emails that adapt flawlessly to all email clients, including notoriously complex ones like Outlook, where I apply specific VML techniques when necessary.

My workflow includes optimized compilation, dynamic integration for personalization, and extensive testing in Litmus/Email on Acid to ensure cross-platform consistency. The result is lightweight, accessible templates ready for integration with any ESP such as Mailchimp or Klaviyo, always keeping fidelity to the original design and deliverability standards.

Solutions

I provide solutions to performance problems or design errors.

Status

status, review and monitoring of campaigns.

Consultancy

I provide you with recommendations to improve or design.

Free Quote

I can give you a free sample of what your project would look like.

Pixel-Perfect, Responsive & Deliverability-Focused Templates

As a seasoned MJML email developer, I bridge the gap between stunning design and technical execution. My specialty lies in transforming your Figma, Adobe XD or Photoshop mockups into bulletproof, responsive email templates that maintain pixel-perfect accuracy across all email clients and devices.

HTML/CSS

Professional conversion of email designs (PSD, Figma, AI, Etc) to responsive HTML/CSS code, fully compatible with all email clients. 

Template Design Mailing

Specializing in design and development of stunning email templates. I combine tools like Figma and Canva to create visually appealing designs.

Testing

Professional email template testing across 9 clients and devices (Outlook, Gmail, Apple Mail, mobile apps, etc.) to ensure flawless rendering before launch.

Responsive

I specialize in responsive email design that converts on any device. My templates not only look perfect on mobile, designed to maximize  conversions.

My Technical Process:

Welcome to my freelance services! I specialize in WordPress administration, custom web design, and responsive email development for CRM platforms. Whether you need a high-performance website, a stunning digital presence, or engaging email campaigns, I provide tailored solutions to boost your online success.

1. Design-to-Code Precision

  • Meticulous conversion of your designs to clean, semantic MJML code

  • Custom VML solutions for Outlook compatibility

  • Strategic use of mj-section, mj-column and custom components for modular flexibility

2. Advanced Development Techniques

  • Hybrid coding approach for maximum client compatibility

  • Fluid layouts that adapt seamlessly from desktop to mobile

  • Accessibility-focused development (WCAG standards)

  • Lightweight code architecture (<102KB) for better deliverability

3. Rigorous Testing Protocol

  • Litmus & Email on Acid validation across 90+ clients and devices

  • Dark mode optimization testing

  • Interactive element testing (buttons, accordions)

  • Spam filter analysis (Litmus Spam Testing)

Write me

if you have any doubt, or if you want advice and a free preview write me, I will answer you as soon as possible.

«Code that breathes, solutions that inspire. Freelancer passionate about technology, digital life and the details that make a difference.»

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Copyright © 2025 Lope Renier Castañeda. All Rights Reserved.