Services

Email coding

Scalero brings technical expertise to the last mile of your email program. We code responsive, accessible templates in HTML, CSS, or MJML, and handle dynamic personalization using Jinja, Liquid, or Handlebars. Whether you’re building from scratch, refining existing modules, or working with a drag-and-drop editor, we make sure your emails look great, load fast, and render consistently. Our focus is on stability, precision, and helping your campaigns land exactly as intended.

Services

Email coding

Scalero brings technical expertise to the last mile of your email program. We code responsive, accessible templates in HTML, CSS, or MJML, and handle dynamic personalization using Jinja, Liquid, or Handlebars. Whether you’re building from scratch, refining existing modules, or working with a drag-and-drop editor, we make sure your emails look great, load fast, and render consistently. Our focus is on stability, precision, and helping your campaigns land exactly as intended.

Services

Email coding

Scalero brings technical expertise to the last mile of your email program. We code responsive, accessible templates in HTML, CSS, or MJML, and handle dynamic personalization using Jinja, Liquid, or Handlebars. Whether you’re building from scratch, refining existing modules, or working with a drag-and-drop editor, we make sure your emails look great, load fast, and render consistently. Our focus is on stability, precision, and helping your campaigns land exactly as intended.

What we do

We help email teams execute with precision and flexibility, no matter the tech stack. Our developers work fluently in HTML/CSS, MJML, and the major dynamic languages like Jinja, Liquid, and Handlebars. We also support drag-and-drop systems and can even write SQL or scripts when your platform allows.

Whether you're working within strict brand guidelines or need help scaling a modular template system, we meet your team where they are and make sure everything just works. The result: clean code, smooth delivery, and emails that do their job.

We work with top lifecycle marketing and customer data platform softwares

Partners

We work with top lifecycle marketing and customer data platform softwares

Partners

We work with top lifecycle marketing and customer data platform softwares

Partners

Types of projects we support

From static to dynamic code, to modular systems, to QA, you can trust in our methods to deliver the best possible email in your subscribers' inbox.

Responsive design implementation

Responsive design implementation

Responsive design implementation

Optimizing your emails for all devices.

Fully responsive HTML coding

Mobile-first design optimization

Cross-client compatibility testing

Accessibility and readability enhancements

Image and media optimization

Template & module development

Template & module development

Template & module development

Streamlining email creation with scalable templates.

Custom modular template development

Drag-and-drop module systems

Reusable component libraries

Interactive email element coding

Template management and updates

Quality assurance & testing

Quality assurance & testing

Quality assurance & testing

Ensuring reliability and performance across every campaign.

Email client compatibility checks

Rendering accuracy testing

Spam compliance and deliverability audits

Accessibility compliance testing

Debugging and troubleshooting

Trusted by some of the world's fastest growing brands.

Trusted by some of the world's fastest growing brands.

Trusted by some of the world's fastest growing brands.

What our clients say about Scalero

Insights from teams that leveled up their marketing with Scalero.

Read more case studies

"As a global business, it’s critical for us to work with teams who understand our brand, our business, and our challenges as well as we do. Tiramisu App and Scalero services support us in end-to-end campaign development and keep our business moving forward."

Annie Jalota

Tools & Automation Lead

“Scalero works quickly and quietly. It’s been a breeze to integrate them into our workflows and they’re always improving their own systems to make it easier for us.”

Cody Hoffman

Founder & CEO

What our clients say about Scalero

Insights from teams that leveled up their marketing with Scalero.

Read more case studies

"As a global business, it’s critical for us to work with teams who understand our brand, our business, and our challenges as well as we do. Tiramisu App and Scalero services support us in end-to-end campaign development and keep our business moving forward."

Annie Jalota

Tools & Automation Lead

“Scalero works quickly and quietly. It’s been a breeze to integrate them into our workflows and they’re always improving their own systems to make it easier for us.”

Cody Hoffman

Founder & CEO

What our clients say about Scalero

Insights from teams that leveled up their marketing with Scalero.

"As a global business, it’s critical for us to work with teams who understand our brand, our business, and our challenges as well as we do. Tiramisu App and Scalero services support us in end-to-end campaign development and keep our business moving forward."

Annie Jalota

Tools & Automation Lead

“Scalero works quickly and quietly. It’s been a breeze to integrate them into our workflows and they’re always improving their own systems to make it easier for us.”

Cody Hoffman

Founder & CEO

FAQ

What coding languages and frameworks do you use for emails?

We use HTML and CSS for core email structure and styling, and often integrate Jinja, Liquid, and Handlebars for dynamic content, personalization, and ESP compatibility. We can also use frameworks like MJML if requested.

If you need broader support, you can also check out all our services here.

Do you code for responsive design and mobile optimization?

Absolutely. Every email we code is mobile-optimized and thoroughly tested for responsiveness across screen sizes and email clients.

Do you follow accessibility best practices in email coding?

Yes. We code with accessibility in mind—using semantic HTML, proper contrast, readable fonts, and screen reader-friendly structures.

Can you help clean up or audit our existing email codebase?

Yes. We audit and refactor existing code to improve performance, ensure best practices, reduce bloat, and simplify long-term maintainability.

How do you manage QA and deliverability testing?

Each coded email goes through rendering checks, deliverability optimization (e.g., image sizes, inline styles), and functional testing before launch.

Can you help us code modular or drag-and-drop templates?

Yes. We specialize in building modular templates compatible with drag-and-drop systems for tools like Iterable, Braze, Salesforce Marketing Cloud, and others.

How do you ensure compatibility across all email clients?

We conduct cross-client rendering tests using tools like Email on Acid and Litmus, ensuring consistency across Gmail, Outlook, Apple Mail, and more.

Can you convert our Figma or design files into code?

Definitely. We take your Figma, Sketch, or Adobe XD designs and convert them into pixel-perfect, responsive HTML email templates.

Can you support multiple ESPs and dynamic syntax?

Yes. We’re fluent in ESP-specific requirements and dynamic syntax (Jinja, Liquid, etc.), and we adapt each template to match the platform’s logic and personalization capabilities.

Do you offer ongoing coding support or retainers?

Yes. We offer retainer-based services for ongoing email coding needs, including campaign production, QA, maintenance, and system template updates.

Need more than email coding?

We also offer other lifecycle solutions. See all services →

Let's do this

Scalero can help you with your email, lifecycle and data needs, no matter your team or tech stack.

Book an intro call

Or send an email to hello@scalero.io to let us know what you need.

Let's do this

Scalero can help you with your email, lifecycle and data needs, no matter your team or tech stack.

Book an intro call

Or send an email to hello@scalero.io to let us know what you need.

Let's do this

Scalero can help you with your email, lifecycle and data needs, no matter your team or tech stack.

Book an intro call

Or send an email to hello@scalero.io to let us know what you need.