Freelance Senior Front End Developer
Confirmed on the employer's own hiring board on Oct 19, 2026. First seen by Alion on Oct 1, 2026. WPP Production scores B on the Alion truth index.
About WPP Production
We are WPP Production - the unified global production company that brings together all of WPP's content producers, studios and craft experts into one connected organisation. We combine world-class human craft with next generation technology to originate, design, and deliver multi-channel content systems at scale. Built for borderless collaboration and powered by deep craft expertise, we are the production engine designed for today's always on, AI driven marketing world.
About WPP
WPP is the trusted growth partner for the world’s leading brands. We unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company - powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth. For more information, visit WPP.com.
The Role
At WPP Production, Senior Front-End Developers deliver rich, immersive, and performant digital interactions that bring our clients' storytelling to life. You will help create sophisticated consumer experiences by building and maintaining a mature, large-scale design system and a proprietary ecosystem of shared libraries and global elements (headers, footers, media galleries, analytics wrappers) used by multiple independent development teams using advanced HTML, CSS, and Javascript.
Embedded in a hybrid US and Argentina team, you will manage interdependent code repositories, resolve cross-repository dependencies, and collaborate with designers and engineers to define interaction behaviors.
Above all, your technical voice is just as important as your code. We thrive on open debate and live collaboration-As a Senior Developer we expect you to actively share your technical perspectives, challenge assumptions, and help drive design and engineering decisions.
ROLE REQUIREMENTS
- Expert knowledge of HTML, CSS-SASS, JavaScript, and associated web development/production tools.
- Strong experience maintaining and extending libraries using Vanilla JavaScript
- Proven experience using, actively building, and maintaining a mature, large-scale design system.
- Experience developing website global elements and custom shared libraries - video , analytics, gallery
- Experience building web experiences fully compliant with WCAG 2.2 AA
- Experience with templates and task automation including handlebars, NPM, Gulp and Vite
- Advanced knowledge of responsive web design
- Experience with translating comps and wireframes into flexible and usable code
- Experience implementing pixel perfect designs across a broad range of browsers and devices
- Experience using version control software (git) in multi-developer team
- Experience with developing large customer-facing websites
QUALITIES AND CHARACTERISTICS
- 5+ years’ experience working as a front-end developer
- Desire to assist, guide and coach more junior team members.
- Excellent verbal and written communication skills, ability to articulate technical concepts to clients and non-technical colleagues
- Experience with web application development
- Thrives when facing new challenges in improving client deliverables
- Relentless attention to detail
- A passion for quality, receptive to feedback, and a desire to write code that produces a bug-free user experience
- Wants to work in a process rich, quality driven organization.
Why work here:
At WPP Production, you’ll help shape the future of content production at a truly global scale. We bring together world-class talent, cutting-edge studios, and advanced technology to solve some of the most complex creative and production challenges in the industry. You’ll work in a collaborative, borderless environment where craft excellence is valued, innovation is encouraged, and AI and next-generation tools are used to amplify not replace human creativity. With access to diverse projects, global career opportunities, and the backing of WPP’s unmatched network, this is a place where you can grow your skills, make real impact, and create work that performs for every audience, across every channel, at every moment.
Inclusion and Impact
WPP is an equal opportunity employer and considers applicants for all positions without discrimination or regard to particular characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.
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