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.

Timothy Sweeney

Brands I've built for

Chase Capital One Toyota Disney Walmart PayPal Merck Blue Cross Blue Shield Instacart McDonald's

Selected Work

Recent & ongoing engagements.

A sample of freelance engagements across WordPress and CMS production, platform design, interactive games, rich-media advertising, and animated social video — spanning political marketing, financial services, healthcare, and entertainment.

Web Production & CMS
4 pieces
Instacart Shopper Commitment microsite hero

Instacart — Shopper Commitment

Marketing Microsite

Design & development · via BPI

Designed and hand-coded this marketing microsite for Instacart to announce the company's commitment to its shopper community — custom component-based SCSS (no framework) with scroll-triggered reveal animations.

Custom SCSSScroll AnimationResponsive Design
View site →
The American Dream Academy microsite hero

The American Dream Academy

Marketing Microsite

Design & development · via BPI

Designed and built this Bootstrap-based enrollment site for a free, six-month workforce-training program delivered through Coursera, developed in partnership with EY, Google, IBM, Meta, NBCC, the Milken Institute, and SV Academy.

BootstrapResponsive DesignThird-Party Integration
View site →
SPOT-ON company website homepage

SPOT-ON

2014 – Present

Website design, development & admin

Designed and repeatedly redesigned Spot-On's public website over more than a decade — from initial concept through several full redesigns — building and administering the WordPress/Elementor CMS as the sole, direct point of contact for the site.

UI/UX DesignWordPressElementorCMS Administration
View live site →
Comunilife nonprofit website homepage

Comunilife, Inc.

2024 – 2026

Website design, development & admin

Front-end developer for the organization's WordPress website — building and updating pages in Elementor and managing full hosting setup and administration for a healthcare-focused nonprofit.

WordPressElementorHosting
View live site →
Product & Platform Design
3 pieces
Pinpoint Persuasion campaign pacing report dashboard

Pinpoint Persuasion (P3)

5+ Years · Ongoing

via SPOT-ON

Sole UI/UX designer for P3, Spot-On's campaign-buying and reporting platform for political advertising — designing the dashboards, reporting views, and buyer/publisher workflows used daily by media buyers and local news outlets nationwide, in Material Design.

Material DesignUI/UX DesignDashboard Design
View reports →
Platform design system documentation — color tokens, typography, and component specs

Design System & Component Library

Ongoing

Tokens, patterns & documentation

Built and maintain a full design system for a freelance client's platform, originally designed in Photoshop and Adobe XD — color and type tokens, spacing scale, and documented component patterns (tables, forms, multi-step flows, status states) grounded directly in the live product.

Design TokensPhotoshopAdobe XDComponent Library
View design system →
Bravecto Quantum pricing calculator prototype for Circa Healthcare / Merck Animal Health

Pricing Calculator — Bravecto Quantum

2025 · Prototype

via Circa Healthcare, client: Merck Animal Health

An interactive tablet tool prototype letting veterinary staff estimate per-dog business profit for a Merck Animal Health product by weight band and vial price — designed for in-office use during a vet visit.

Interactive PrototypeJavaScriptTablet UI
Interactive & Games
2 pieces
Ad Clutter Buster mobile game title screen, built for GumGum

Ad Clutter Buster

2018 · Digiday NYC

via GumGum

A mobile drag-and-drop game built for GumGum and showcased at Digiday NYC — players race a countdown timer to place ad units onto a mock news site, comparing their instincts against real eye-tracking data to see how ad placement affects attention and ROI. Built with GSAP animation and jQuery UI drag-and-drop interactions.

GSAPjQuery UIInteractive DesignMobile Game
Play game →
McDonald's Summer Break Menu hidden-object browser game

McDonald's — Summer Break Menu

Hidden-Object Game

via d expósito

A Spanish-language hidden-object browser game built for McDonald's Summer Break Menu promotion — players race a 10-second countdown to spot five menu items hidden inside a richly illustrated cityscape, fully branded with McDonald's summer menu artwork.

Interactive DesignGame DesignSpanish-Language Campaign
Rich Media & Display
3 pieces
Jurassic World: Fallen Kingdom auto-expanding HTML5 banner, expanded state with trailer video Downton Abbey: The Final Season auto-expanding HTML5 banner for PBS Masterpiece

Entertainment & Streaming Campaigns

2016 – 2018

via Big Picture Group

Hand-coded, auto-expanding HTML5 rich-media units built in DoubleClick Studio with embedded video and carousel interactivity — Universal's Jurassic World: Fallen Kingdom (728×90 auto-expand with trailer video) and PBS Masterpiece's Downton Abbey: The Final Season (300×250 auto-expand with a character carousel, video, and photo gallery).

HTML5DoubleClick StudioAuto-ExpandVideo
View Downton Abbey ad →
Chase Sapphire Reserve HTML5 display banner Capital One Venture X Business animated HTML5 banner

Financial Campaigns

2024 – Present

via Quigley-Simpson & Decoded Advertising

Figma- and Bannerify-built HTML5 display banners for Chase (Sapphire, IHG, United, Marriott Bonvoy), plus hand-coded HTML5/CSS/JS with GSAP for Capital One Venture X Business.

HTML5GSAPFigmaBannerify
d expósito & Partners animated HTML5 banner for Tajín, served on The Trade Desk Animated HTML5 banner for a Circa Healthcare / Merck Animal Health campaign

CPG & Animal Health Display

2012 – 2023

via d expósito & Circa Healthcare

Animated CPG display creative for Tajín served on The Trade Desk, and animal-health campaign banners for Circa Healthcare, client: Merck Animal Health.

Rich MediaHTML5 AnimationThe Trade Desk
Email Marketing
2 pieces
BCBS FEP Vision email BCBS FEP Medical email

Email Marketing — BCBS FEP

2023 – 2025

via MERGE

Hand-coded responsive HTML email campaigns for Blue Cross Blue Shield's Federal Employee Program — benefit-education, member-engagement, and open-enrollment sends — built to render consistently across Gmail, Outlook, and Apple Mail and tested cross-client before every send.

HTML EmailResponsiveCross-Client QA
Nobivac Lyme drip email, unrivaled Lyme protection Nobivac Lyme email, unique borreliacidal technology

Email Marketing — Nobivac Lyme

2021

via Circa Healthcare, client: Merck Animal Health

Hand-coded HTML emails for a two-part Nobivac Lyme drip campaign aimed at veterinary practices, pairing custom data-visualization graphics with mobile-responsive layouts built to hold up across veterinary-office email clients.

HTML EmailResponsiveB2B / Veterinary
Social Media Ads
2 pieces

Social — Idris Keith for Senate

2024

via SPOT-ON

15-second vertical social video for Idris Keith's Colorado State Senate District 28 campaign — animated stills, motion, and timed audio cut together in Adobe Premiere Pro and Camtasia for paid social placements.

Premiere ProCamtasiaSocial VideoPolitical Advertising

Social — Bravecto Plus "Myth vs. Reality"

2021

via Circa Healthcare, client: Merck Animal Health

Animated myth-vs-reality social video for Bravecto Plus, built as an HTML5/JavaScript and GSAP animation, then rendered to video for paid social placements.

GSAPJavaScript AnimationSocial VideoB2B / Veterinary

Additional freelance clients: Condé Nast, MightyHive, Monitise, 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- and Squarespace-based websites and high-performance HTML5 display advertising for global consumer brands. I work across the full production pipeline — from UI/UX design in Figma through hand-coded front-end implementation — with deep expertise in cross-browser compatibility, email marketing production, and IAB/DCM ad-serving standards. I also bring AI into my day-to-day workflow, using Claude to help debug tricky problems, research, and think through project planning alongside my own hands-on design and development work.

Industries served

  • Financial Services
  • Automotive
  • Entertainment
  • Healthcare
  • Consumer
  • Real Estate

Selected brands

Chase · Capital One · Toyota · BMW · Acura · Disney · McDonald's · Nike · Walmart

Skills

What I bring to a team.

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Front-End Development

HTML5, CSS3, JavaScript, jQuery, Bootstrap, Responsive Design, Cross-Browser Compatibility (BrowserStack), WCAG Accessibility Testing & Remediation

WP

CMS & Platforms

WordPress build & administration (including Gutenberg block-editor development), Squarespace, custom CMS integration, web hosting setup & management, SEO (Yoast, All in One SEO) & Google Analytics setup

✎

UI/UX & Design

Figma, Adobe XD, Photoshop, Illustrator, InDesign, Sketch, Material Design

Ad

Digital Advertising

HTML5 display & rich-media ads (DoubleClick HTML5 Certified), DCM/IAB ad-serving standards, email marketing (Email on Acid), GSAP animation (15+ yrs)

AI

AI-Assisted Workflow

Claude — used daily for debugging, technical research, and project planning alongside hands-on design & development

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Production Tools

Adobe Premiere, Media Encoder, Camtasia, iMovie, PowerPoint, Excel, Word, Microsoft Teams, OneDrive

🏅 HTML5 Certified for DoubleClick Rich Media — Google

Experience

Career timeline.

Freelance Front-End Developer & Designer

2010 – Present

Self-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. Recent builds include Bully Pulpit International's (BPI Group) Squarespace site plus regional Instacart microsites, an Acura microsite through Mullen Lowe, and responsive WordPress microsites for a Merck animal-health product through Circa Healthcare.

Front-End Developer

2010 – 2013

Visual 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 – 2010

Bozell/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)