Freelance Developer
Core
Develop, implement, and optimize dynamic creative campaigns (HTML5/CSS3/JS) across ad serving and DCO platforms for global brands.
Role type
Freelance Digital Advertising Developer
Builds
Scalable digital advertising experiences and dynamic creative optimization (DCO) campaigns
Domain
Digital Advertising / Paid Media
Deliverable
production ML models | product features | dashboards & analysis | client delivery
Required skills
HTML5, CSS3, vanilla JavaScript, GSAP, DCO platforms, ad serving platforms, dynamic data feeds (CSV/JSON/XML), cross-browser QA, version control (Git), project management tools
Preferred skills
Social DCO platforms, Connected TV (CTV) and VAST/VPAID standards, template systems, build tools (NPM), data layers and privacy regulations
Technologies
Google Marketing Platform, Flashtalking, Sizmek, Celtra, Git, Jira, Asana, Trello, Figma, Adobe Creative Cloud
Responsibilities
Develop responsive HTML5/CSS3/JavaScript banners and modular templates; Implement dynamic variables and data feeds; Perform functional and visual QA across devices; Create technical documentation and support automation RFPs; Estimate development effort and timelines; Contribute to evaluation of new advertising solutions
Seniority
Mid-level (3–5 years experience)
