Quigley-Simpson
2025 – PresentFront-end developer, remote freelance
Figma and Bannerify-built HTML5 web display banners for Chase brand campaigns, including Chase Sapphire, Chase IHG, Chase United, and Chase Marriott Bonvoy.
Front-End Developer & Designer
Hi, I'm Timothy Sweeney.
I build fast, polished web experiences.
25+ years designing and hand-coding responsive websites, WordPress platforms, and high-performance HTML5 advertising for brands like Chase, Toyota, Disney, and Walmart.
Selected Work
Recent & ongoing engagements.
A sample of freelance engagements across political marketing, financial services, entertainment, and consumer advertising.
Decoded Advertising
2024 – PresentFront-end developer, remote freelance
Hand-coded HTML5/CSS/JS + GSAP animation banners for Capital One. Via MediaMonks, built hundreds of Figma-based banners for Hulu, Disney, and HBO entertainment campaigns, including Euphoria and House of the Dragon.
SPOT-ON
2014 – PresentUI/UX design, ad-serving platform
Designed the UI/UX for a full ad-serving platform, built over 5 years, that connects publishers and outlets with political marketing firms to place advertising across congressional and local political districts nationwide. Also handle the CMS website build, HTML5 display ads, and email marketing for political marketing campaigns — recently adopting Material Design and AI-assisted development tools (Claude Code, Lovable) to accelerate build and prototyping workflows.
Comunilife, Inc.
2024 – PresentFront-end designer/developer
Front-end designer/developer for the company website, including full hosting setup and administration.
Big Picture Group
2014 – 2019Rich-media developer, remote freelance
Hand-coded rich-media HTML5 banners with expanded video-player and carousel interactivity on DoubleClick Studio for Netflix, CBS, PBS, and Universal, including campaigns for Downton Abbey and Jurassic World.
d expósito & Partners
2012 – 2024UI/UX, CMS & ad production
UI/UX, website admin, and CMS builds; HTML5 and rich-media display ads for McDonald's, AARP, Amica, and Tajin. Designed and built an HTML5 advergame for McDonald's Spanish-language market — players searched an interactive city map to find menu items and win.
Additional freelance clients: Condé Nast, MightyHive, MERGE, Monitise, Circa Healthcare, GYK Antler, Mullen Lowe, Deutsch, HomeBrew Agency (Terry Hines), Black Box Entertainment, The Trade Desk, RAPP, Nonfiction Agency, Lescher Marketing — details on request.
About
25+ years at the intersection of design, code, and AI.
I'm a front-end developer and designer with 25+ years building responsive, WordPress-based websites and high-performance HTML5 display advertising for global consumer brands. I work across the full production pipeline — from UI/UX design through hand-coded front-end implementation — with deep expertise in cross-browser compatibility, email marketing production, and IAB/DCM ad-serving standards. Lately, I've been using AI-assisted tools like Claude Code and Lovable to speed up builds and prototyping without cutting corners on quality.
Industries served
- Financial Services
- Automotive
- Entertainment
- Healthcare
- Consumer
- Real Estate
Selected brands
Chase · Capital One · Toyota · BMW · Disney · McDonald's · Nike · Walmart
Skills
What I bring to a team.
Front-End Development
HTML5, CSS3, JavaScript, jQuery, Bootstrap, Responsive Design, Cross-Browser Compatibility
CMS & Platforms
WordPress build & administration, custom CMS integration, web hosting setup & management
UI/UX & Design
Figma, Adobe XD, Photoshop, Illustrator, InDesign, Sketch, Material Design
Digital Advertising
HTML5 display & rich-media ads (DoubleClick HTML5 Certified), DCM/IAB ad-serving standards, email marketing, GSAP animation (15+ yrs)
AI-Assisted Development
Claude Code, Lovable — used to accelerate builds and prototyping workflows
Production Tools
Media Encoder, Camtasia, PowerPoint, Excel, Word
🏅 HTML5 Certified for DoubleClick Rich Media — Google
Experience
Career timeline.
Freelance Front-End Developer & Designer
2010 – PresentSelf-employed
Independent contractor providing front-end development, UI/UX design, WordPress builds, and HTML5 advertising production to agencies and brands nationwide, alongside full-time employment through 2013.
Front-End Developer
2010 – 2013Visual Alchemy, New York, NY
Built interactive trade show kiosk display applications and web applications; served as front-end team lead for the Aggrenox account. Produced Flash animations, wireframes, and email marketing materials for Boehringer Ingelheim, Novo Nordisk, and Medical Knowledge Group.
Manager, HTML Banner Ad Production
2000 – 2010Bozell/Lowe Worldwide, New York, NY
Promoted from Print Producer to Manager, HTML Banner Ad Production over a 10-year tenure; also built the front-end for the agency's Xinet digital asset library. Led digital ad production as team lead for the New Business, Saab, and Intel accounts. Produced web applications, Flash consumer ads, email marketing, and new business presentation materials for GMC, Saab, Bank of America, HSBC, Mass Mutual, Samsung, and Macy's.
Contact
Let's work together.
Currently open to front-end developer and web designer roles. Reach out any time.
Download Resume (PDF)