HTML Developer (Email)

Location: Asse, Belgium, in the greater Brussels commuting area.

Company

OLIVER designs, builds, and runs bespoke in-house agencies and marketing ecosystems for brands, partnering with more than 300 clients in over 40 countries as part of The Brandtech Group.

What you will do

• Design and code responsive, mobile-first HTML email templates from briefs, ensuring cross-client compatibility and alignment with brand specifications.
• Develop custom HTML/CSS email solutions and maintain reusable template and component libraries.
• Test emails across Outlook, Gmail, Apple Mail, and other major clients using Email on Acid, Litmus, or equivalent tools; identify and resolve rendering issues.
• Implement accessible email practices, including semantic HTML, appropriate alt text, and WCAG compliance.
• Optimize images and assets for email performance while preserving visual quality.
• Collaborate with designers and marketing teams, provide technical guidance, manage multiple campaigns, and meet strict deadlines.

Requirements

• 3–5 years of hands-on experience in HTML email development.
• Advanced HTML and CSS proficiency, including email-specific coding constraints, responsive design principles, and media queries.
• Demonstrated experience building responsive, mobile-first email templates.
• Proficiency with email testing and QA tools such as Email on Acid, Litmus, or equivalent.
• Experience with image optimization, asset management, accessibility standards, and inclusive email design.
• Strong attention to detail, pixel-perfect execution, and the ability to work under tight deadlines while managing multiple campaigns.
• Experience collaborating with designers and marketers, plus the ability to explain technical limitations to non-technical stakeholders.
• Proficiency in French, written and spoken, is required. Knowledge of Flemish/Dutch is a plus.
• Positive attitude, proactive mindset, strong interpersonal and communication skills, and a portfolio demonstrating previous email projects and responsive email solutions.

Nice to have

• Familiarity with AI-powered automation tools and code-generation assistants.
• Knowledge of Flemish/Dutch.

Culture & Benefits

• Values include ambition, imagination, inspiration, continuous learning and listening, results focus, and active pro-inclusion and anti-racism.
• AI supports efficiency and consistency, while candidate evaluation and selection are conducted without AI-supported screening or decision-making.
• Inclusive equal-opportunity environment where individual differences are valued.
• Sustainability is embedded across departments and throughout the project lifecycle, supported by science-based emissions reduction targets.