Front End Developer (3m FTC)

Location: London, United Kingdom — onsite

Company

Mosaic is an integrated creative and technology team working within the WPP network to deliver design, automation, and email solutions for News UK brands including The Sun, The Times, and Broadcast.

What you will do

• Develop responsive, accessible email templates and components from scratch, following brand guidelines and optimising for different email clients and devices.
• Maintain Figma design systems, including component libraries, style guides, design tokens, templates, and organised design assets.
• Translate Figma systems into Assemble and code dynamic content structures, interactive elements, styling properties, and custom functionality using JavaScript.
• Build automated artwork and templating workflows, including scripting and reusable assets for multiple formats and channels.
• Integrate personalised and dynamic content, configure triggered and drip campaigns, and support email service provider workflows.
• Collaborate with creatives, strategists, account managers, WPP specialists, and technology teams while presenting technical solutions and maintaining The Sun’s brand identity.

Requirements

• Proven experience as an Email Developer or in a similar role within a creative or media agency.
• Portfolio demonstrating email development skills and creative concepts.
• Proficiency in hand-coding HTML, CSS, and JavaScript for responsive email design and personalisation.
• Deep understanding of email design, UX, accessibility best practices, email client compatibility, and email testing.
• Proficiency in Adobe Creative Suite, including Photoshop, Illustrator, Figma, and After Effects.
• Familiarity with email service providers, personalisation tools, and testing platforms such as Email on Acid or Litmus.
• Strong communication, problem-solving, organisational, and time-management skills, with a proactive and solution-oriented approach.
• Ability to manage time, adapt to changing project requirements, collaborate effectively, and maintain meticulous attention to detail.

Nice to have

• Knowledge of Adobe Campaign and/or Movable Ink.
• Familiarity with the WPP Open ecosystem and its capabilities, or a strong willingness to learn.

Culture & Benefits

• Collaborative creative environment working across design, strategy, account management, technology, and specialist WPP teams.
• Opportunity to use audience data, automation, and WPP technology platforms to improve email workflows and personalisation.
• Three-month fixed-term contract with the possibility of extension.
• Full-time onsite work in London.
• Role values ambition, independence, partnership, positivity, continuous learning, and ownership of technical solutions.