Freelance Developer - 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

We are looking for a Freelance Developer to join our team and help deliver high-quality, scalable digital advertising experiences. In this role, you will develop, implement, and optimize dynamic creative campaigns across multiple ad serving and DCO platforms. You will work closely with Account, Project Management, Creative, and Media teams to transform campaign strategies into technical solutions, ensuring flawless execution, quality assurance, and continuous improvement.

Responsibilities

Campaign Execution

• Develop and maintain responsive HTML5/CSS3/JavaScript banners, animations (e.g., CSS and GSAP), and modular templates for Dynamic Creative Optimization (DCO).
• Implement dynamic variables, business rules, and data feeds (CSV, JSON, XML, Google Sheets) to enable personalized campaigns at scale.
• Prepare publication packages, including naming conventions, packaging, tags, clickTags, and polite loading implementation.
• Upload and traffic creative assets and dynamic campaigns across DCO and ad serving platforms according to client technology stacks.

Collaboration & Operations

• Partner with Account, Project Management, and Client teams, as well as media agencies, to translate addressable marketing strategies into clear technical requirements.
• Support the definition of technical ways of working for new client accounts, including staging environments, repositories, and approval workflows.
• Estimate development effort and timelines while proactively identifying technical risks and limitations.

Quality Assurance & Launch

• Perform functional and visual QA across multiple creative variations, browsers, devices, and screen sizes.
• Validate tracking integrations (click, impression, and interaction tracking), brand safety requirements, and platform compliance.