Weekend Shopify Developer Jobs in Miami, FL (NOW HIRING)

The Marketing Frontend Developer sits within the Marketing Technology (MarTech) organization and is dedicated to building and optimizing customer-facing digital experiences. This role partners closely with MarTech leadership, Advertising, Design, and Brand Owners to rapidly deliver high-converting landing pages, onsite UX enhancements, and A/B tests without dependency on traditional Application Development sprint cycles.

The Marketing Frontend Developer will leverage Magento 2 frontend development, JavaScript/TypeScript, HTML/CSS, Magento Page Builder, and experimentation tools to execute campaign experiences, improve funnel performance, and maintain marketing UI/UX standards across the site. The Marketing Frontend Developer will balance custom-coded templates with Page Builder-friendly components to ensure marketing experiences remain easy to adjust by non-developers over time. Exposure to Angular or other modern frameworks is a plus but not required.

While the primary focus of this role is Magento 2, the developer may also provide limited support for a Shopify storefront during a transitional period; Shopify experience is a plus but not required.

Key Responsibilities

Marketing Web Experience Development

• Design and develop responsive landing pages for products and marketing campaigns, from wireframe through production.
• Translate marketing briefs and UX requirements into clean, production-ready frontend builds.
• Create and maintain reusable landing page components and templates to increase campaign velocity.
• Own QA for marketing releases (cross-browser/device checks, accessibility, and performance hygiene).
• Build and maintain Magento Page Builder-compatible sections and templates to enable future updates by non-technical marketing partners.
• Balance custom frontend development with platform-native tools to support long-term maintainability and campaign agility.
• Support frontend updates across both Magento 2 and (as needed) Shopify marketing experiences during platform transition efforts.

Experimentation / CRO Engineering

• Partner with MarTech leadership to identify behavioral insights and testing opportunities.
• Implement and QA A/B and multivariate tests using split-testing tools and frontend code changes.
• Roll winning experiments into permanent site code and retire losing variants cleanly.

Custom Onsite Experiences

• Build custom onsite modules such as promotional banners, pop-ups/overlays, sticky CTAs, countdown timers, quizzes/recommenders, and personalization blocks.
• Integrate approved third-party onsite widgets when needed.

Email & Lifecycle Experience Support

• Develop and modify responsive HTML email templates and custom content blocks to support lifecycle and campaign messaging.
• Partner with Lifecycle Marketing to ensure consistent creative experience from email → landing page.

Analytics & Optimization Support

• Support tagging and data-layer events for new marketing modules and tests.
• Assist with troubleshooting measurement gaps tied to marketing experience releases.
• Apply performance best practices aligned with Core Web Vitals.

General Delivery Expectations

• Produce clean, well-documented frontend code, Page Builder-ready modules, and lightweight documentation to support long-term reuse and marketing self-service.
• Provide accurate and consistent effort estimates and deliver reliably against deadlines.
• Perform other duties as assigned by MarTech leadership.

Qualifications

Education and Experience

• Bachelor’s degree in computer science preferred or equivalent work experience required.
• 2–5 years building customer-facing marketing or eCommerce web experiences (landing pages, funnels, promotional modules).
• Hands-on experience implementing A/B tests through tools such as Optimizely, VWO, Adobe Target, Convert, or similar.
• Experience translating wireframes into polished responsive builds.
• Responsive HTML email development experience strongly preferred.
• Strong JavaScript/TypeScript, HTML5, CSS3 (modern responsive layouts).
• Solid UI/UX sensibility with attention to visual consistency and conversion best practices.
• Experience working with design teams and translating creative assets into production-ready builds; ability to slice/export assets from Adobe Creative Cloud tools (Photoshop, Illustrator, XD) preferred.
• Shopify storefront or landing page development experience is a plus, though Magento 2 remains the primary platform focus.
• Comfortable operating in a high-volume campaign environment with rapid turnaround.
• Familiarity with performance optimization and Core Web Vitals preferred.
• Familiarity with Angular or other modern JavaScript frameworks is a plus but not required.

Knowledge, Skills, and Abilities

• Strong understanding of modern frontend development for eCommerce and marketing experiences.
• Ability to work quickly and effectively in a high-volume campaign environment with shifting priorities.
• Excellent collaboration skills across Marketing, Design, Analytics, and Engineering teams.
• Strong attention to detail in UI consistency, responsiveness, and conversion best practices.
• Comfortable taking ownership of deliverables from build through QA and release coordination.
• Ability to translate high-level marketing goals into functional frontend experiences.
• Eager to learn and grow within a fast-moving MarTech and experimentation environment while delivering high-quality work.
• Self-starter mindset with proactive communication and accountability.