Senior Shopify Full-stack Developer (IR-471)

About Intellectsoft

Intellectsoft is a dynamic software development company, delivering innovative solutions since 2007. Operating across North America, Latin America, the Nordic region, the UK, and Europe, we specialize in industries such as Fintech, Healthcare, EdTech, Construction, and Hospitality. We partner with startups, mid-sized businesses, and Fortune 500 companies, including Jaguar Motors, Universal Pictures, and Harley-Davidson, to drive innovation and scalability. Our collaborative teams are dedicated to making a daily impact through impactful solutions. Learn more at www.intellectsoft.net.

Our client is an international health products company, headquartered in the United States, with a market presence of over 30 years and annual revenues exceeding $1.5 billion. They utilize a multi-level marketing e-commerce platform with a vast global user base.

About the Role

We are seeking a highly experienced Senior Shopify Full-Stack Developer to join our team. In this pivotal role, you will be responsible for designing, engineering, and optimizing critical components of a large-scale e-commerce platform. You will work with complex business flows, focusing on performance, accessibility, and internationalization, while collaborating with cross-functional teams to deliver exceptional user experiences and measurable business outcomes.

Key Responsibilities

• Design & Maintenance: Design and maintain the structural components of our online presence, including themes, templates, sections, and app extensions, leveraging Liquid, JSON, HTML/CSS, and JavaScript/TypeScript.
• Feature Engineering: Engineer complex Shopify features such as custom logic for checkout, cart, and pricing using Shopify Functions. Implement Checkout Extensibility and manage essential data exchanges through webhooks and custom/private app integrations utilizing the platform's GraphQL and REST APIs.
• Performance & SEO Enhancement: Oversee core Web Vitals, optimize images and CDN, apply lazy loading, and incorporate structured data; ensure markup is semantic and crawlable.
• Internationalization: Set up Shopify Markets, including domains or subfolders, currencies, duties and taxes, translations, and price lists; enable multi-region catalogs to facilitate internationalization.
• Automated Testing & CI/CD: Implement automated testing using Playwright/Cypress and Jest, incorporate type safety with TypeScript, and set up CI/CD pipelines (such as GitHub Actions).
• Quality & Reliability: Define performance budgets and establish monitoring to maintain high standards of quality and reliability.
• Accessibility: Deliver accessible user experiences that conform to WCAG standards by supporting keyboard navigation, implementing appropriate landmarks, and utilizing ARIA attributes.
• Collaboration & Mentorship: Collaborate closely with Design (using Figma), Content, and Growth teams, ensuring code quality by conducting code reviews and providing mentorship to junior and mid-level engineers.
• Analytics & Optimization: Track production metrics such as errors, vitals, and uptime; analyze user funnels using GA4, GTM, and Search Console; and continuously iterate to enhance conversion rate (CVR) and average order value (AOV).

What You'll Bring

• 8+ years of professional web development experience, with at least 5 years dedicated to developing on the Shopify platform.
• Expert-level proficiency in the Liquid templating language, Online Store 2.0 architecture, sections and blocks, metafields, theme app extensions, with deep expertise with Shopify CLI.
• Deep understanding of the Shopify Storefront API, Admin API (preferably GraphQL), App Bridge, webhooks, and integrating apps for subscriptions, search, reviews, loyalty, and analytics.
• Proven track record of launching and optimizing large-scale, high-traffic e-commerce platforms with complex business flows.
• Experience with headless Shopify implementations using Hydrogen/Remix or Next.js, including edge rendering and advanced caching strategies.
• Proficient in React, Node.js, serverless technologies (Cloudflare/AWS), GraphQL tooling.
• Strong background in HTML, CSS/SCSS, modern JavaScript/TypeScript, and optimizing DOM performance.
• Expertise in performance optimization techniques, tools, and processes (especially Core Web Vitals, CDN caching) and conversion rates at scale.
• Familiarity with Git/GitHub workflows, code reviews, and CI/CD processes.

Nice-to-Have Skills

• Expertise in A/B testing, feature flagging, and integrating solutions for payments, fraud prevention, tax/duties, subscriptions, and ERP/PIM systems.
• Strong background in building custom or private Shopify apps, including OAuth and secure key management.
• A bachelor's degree in computer science or a related field.
• Experience with testing frameworks (e.g., Jest, Cypress) for e-commerce environments.
• Spanish (B2 level).

Benefits

• Awesome projects with an impact.
• Udemy courses of your choice.
• Team-buildings, events, marathons & charity activities to connect and recharge.
• Workshops, trainings, expert knowledge-sharing that keep you growing.
• Clear career path.
• Absence days for work-life balance.
• Flexible hours & work setup - work from anywhere and organize your day your way.

How to Apply

Interested candidates are invited to apply via the following link: https://weworkremotely.com/remote-jobs/intellectsoft-senior-shopify-full-stack-developer-ir-471