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Senior Shopify Developer

PHIZENIX

Location

San Francisco, CA

Salary

Not specified

Type

fulltime

Posted

Today

via linkedin

Job Description

As a Shopify Developer, you will be responsible for designing, building, and maintaining our Shopify storefront — ensuring it delivers a luxury, performant, and conversion-optimized experience. You'll collaborate cross-functionally with design, marketing, and product teams to bring our brand story to life digitally.

Key Responsibilities

  • Develop, customize, and maintain Shopify themes using

HTML, CSS, and JavaScript

  • Build and optimize custom Shopify sections, templates, and components aligned with our luxury brand aesthetic
  • Integrate and manage third-party apps and APIs including

Klaviyo, Yotpo, Shop Pay

, and other eCommerce tools

  • Ensure high performance across devices — with a strong focus on

mobile-first development

and sub-3-second load times

  • Lead A/B testing initiatives and optimize

product detail pages (PDPs)

for conversion, including ingredient storytelling, skin quiz tools, and subscription flows

  • Maintain and improve Shopify subscription functionality and loyalty/rewards integrations
  • Collaborate with UX/UI designers to implement pixel-perfect, brand-consistent designs
  • Monitor and resolve front-end bugs, performance issues, and cross-browser compatibility problems
  • Participate in eCommerce roadmap planning and contribute technical insights to business decisions
  • Ensure SEO best practices are implemented across all storefront pages

Required Skills \& Experience

  • Hands-on Shopify development experience
  • Strong proficiency in

Shopify Liquid templating language

  • Solid front-end skills —

HTML5, CSS3, JavaScript (ES6\+)

  • Familiarity with

Shopify APIs

— REST and GraphQL (Storefront API / Admin API)

  • Experience integrating apps like

Klaviyo, Yotpo, Recharge, or similar

  • Understanding of

Core Web Vitals

, page speed optimization, and Lighthouse scoring

  • Experience with

Git/version control

and modern development workflows

  • Strong attention to detail and an eye for luxury aesthetics and brand consistency

Nice to Have

  • Experience with

headless commerce

or Shopify Hydrogen/Oxygen

  • Familiarity with

Shopify Plus

features (Scripts, Checkout Extensions, Flow)

  • Prior experience working with

beauty, wellness, or luxury eCommerce

brands

  • Knowledge of

accessibility standards

(WCAG 2\.1)

  • Exposure to

AI-powered shopping tools

or personalization integrations

  • Experience with

Salesforce Commerce Cloud

or multi-platform eCommerce environments

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