Semi Senior Creative Developer

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We are seeking a highly specialized and results-driven Creative Developer who operates with a designer's eye and an Ad Operations expert's precision. This role is the critical link between our marketing creative vision and its technical, scalable deployment across global media platforms. You will own the full development lifecycle for high-impact display and rich media units, ensuring flawless execution, strict technical compliance, and uncompromised brand aesthetics across hundreds of variations.

I. Core Responsibilities: Technical Development & Ad Operations

This section focuses on the non-negotiable, high-efficiency coding, performance, and compliance standards expected.

• HTML5 Unit Engineering: Architect, develop, and QA high-performing, light-weight HTML5 display advertising units (standard, expandable, interstitial) using vanilla JavaScript, CSS3 (for animations), and HTML5.
• Performance and Optimization Mastery: Aggressively manage and enforce strict platform constraints, specifically achieving sub-150KB file size limits (including all assets) via techniques like image compression, sprite mapping, and efficient code minification.
• Platform & Compliance: Ensure 100% technical compliance with specifications for all major ad servers and DSPs, including Google Ads (formerly AdWords), DV360, Adform, The Trade Desk, and Sizmek. Expertly manage click-tag implementation, creation, and polite loading sequences.
• Advanced Ad Formats: Implement advanced features such as video integration, dynamic creative optimization (DCO), and responsive ad units, setting up feed structures and template logic where necessary.
• QA & Troubleshooting: Execute rigorous cross-browser and cross-device Quality Assurance (QA). Actively debug and resolve technical issues identified in live environments or during third-party certification.

II. Core Responsibilities: Design, Creative Adaptation & Consistency

This section highlights the critical need for design sensitivity, brand guardianship, and scale-based adaptation skills.

• Key Visual (KV) Localization & Resizing: Rapidly and accurately adapt core Key Visual (KV) assets provided by the creative team into a comprehensive matrix of required banner sizes (e.g., 300x250, 728x90, 160x600, 300x600, etc.).
• Brand and Visual Integrity: Serve as a brand guardian, ensuring that all adaptations maintain the original campaign's visual hierarchy, messaging integrity, typography, and color palette, regardless of banner aspect ratio.
• Asset Preparation: Efficiently prepare, crop, and optimize creative assets (images, typography, and vectors) from source files (e.g., PSD, AI, Figma) for web use, focusing on balancing visual fidelity with minimal file size.
• Motion & Storytelling: Translate static design concepts and storyboards into engaging, performant CSS3/Javascript animations that enhance the core message while adhering to strict animation duration limits.

III. Required Skills, Tools, and Experience

• Technical Coding Expertise: Minimum 3+ years professional experience focused on front-end web development/ad development, with a deep specialization in vanilla JavaScript, HTML5 Canvas/DOM manipulation, and high-performance CSS3.
• Animation Framework Mastery: Proficiency in the GreenSock Animation Tool (GSAP) for creating smooth, efficient, and complex animation sequences in HTML5 display units. Demonstrated ability to use GSAP's features for advanced sequencing and timeline control.
• Ad Tech Standards: Proven experience implementing ad tracking methods, including click-tags, 1x1 trackers, and managing rich media server-side tracking assets.
• Creative Software Proficiency: Expert-level command of the Adobe Creative Suite, specifically Adobe Photoshop ,Illustrator and Figma, for image manipulation, slicing, and asset preparation.
• Workflow: Demonstrated ability to manage high-volume production workflows, handling hundreds of creative adaptations and localizations within tight deadlines.
• Optimization Tools: Familiarity with modern code optimization and asset compression techniques/tools.

Not a Must but a Plus:

• Prior experience in motion design tools such as Adobe After Effects (used for pre-visualization or generating complex video assets).
• Experience exporting Lottie/Bodymovin animations for integration into mobile or web environments.
• Familiarity with other creative frameworks, such as or , for innovative rich media execution.

At Monks, we believe in fostering an environment where a diversity of perspectives can thrive. We proactively work to design hiring processes that promote equity and inclusion while mitigating bias. We celebrate diversity and are committed to building a team that reflects the communities we serve. We welcome and encourage qualified applicants, from all backgrounds, who are excited to contribute to our mission.  

#LI-Hybrid #LI-MP1

About Monks

Monks is the global, purely digital, unitary operating brand of S4Capital plc. With a legacy of innovation and specialized expertise, Monks combines an extraordinary range of global marketing and technology services to accelerate business possibilities and redefine how brands and businesses interact with the world. Its integration of systems and workflows delivers unfettered content production, scaled experiences, enterprise-grade technology and data science fueled by AI—managed by the industry's best and most diverse digital talent—to help the world's trailblazing companies outmaneuver and outpace their competition.

Monks was named a Contender in The Forrester Wave: Global Marketing Services. It has remained a constant presence on Adweek's Fastest Growing lists , ranks among Cannes Lions' Top 10 Creative Companies and is the only partner to have been placed in AdExchanger's Programmatic Power Players list every year In addition to being named Adweek's first AI Agency of the Year (2023), Monks has been recognized by Business Intelligence in its 2024 Excellence in Artificial Intelligence Awards program in three categories: the Individual category, Organizational Winner in AI Strategic Planning and AI Product for its service Monks.Flow. Monks has also garnered the title of Webby Production Company of the Year , won a record number of FWAs and has earned a spot on Newsweek's Top 100 Global Most Loved Workplaces 2023.

We are an equal-opportunity employer committed to building a respectful and empowering work environment for all people to freely express themselves amongst colleagues who embrace diversity in all respects. Including fresh voices and unique points of view in all aspects of our business not only creates an environment where we can all grow and thrive but also increases our potential to produce work that better represents—and resonates with—the world around us.