Shopify Developer

Glass Atlas is the digital commerce agency of choice for transformation and growth, aiming to be the leading partner for world-class brands. We drive innovation and excellence across performance marketing, commerce engineering, and creative practices. Powered by a collaborative team of 170+ specialists across performance and commerce technology, our growth is built on strong expertise and a shared vision.

Culture is at the heart of everything we do, which is why we keep it simple with a single guiding value—our True North:
We do the right thing. This core principle guides how we work, make decisions, and treat our customers, partners, and each other every single day. We believe that doing the right thing fosters transparency, excellence, and a supportive environment where everyone can thrive.

Glass Atlas are looking for an experienced full-stack Shopify Developer to join our Commerce Technology team. You will work across a range of ecommerce clients, designing, building, launching and continually improving high-quality Shopify and Shopify Plus solutions. This is broader than a storefront or theme-development role: you will work across customer-facing experiences, server-side services, APIs, integrations and data flows, helping to understand client requirements, recommend pragmatic technical approaches and take responsibility for the quality of what we deliver.

The Shopify Developer is responsible for delivering robust, maintainable and high-performing solutions across the full Shopify technology stack. The role combines hands-on frontend and backend development with technical discovery, estimation, API and integration design, data modelling, quality assurance and production support. You will collaborate with developers, technical leads, designers, delivery managers and clients to turn commercial and functional requirements into effective Shopify solutions.

The following should give you a flavour of how you will be spending your time. Your focus will shift from week-to-week, but it gives an idea of what is expected from the role:

• Build and maintain Shopify and Shopify Plus solutions across storefronts, custom applications, services and integrations.

• Develop bespoke themes and extend existing themes using Liquid, JSON templates, sections, blocks, HTML, CSS and JavaScript, while contributing to backend services where required.

• Translate designs and functional requirements into responsive, accessible and performant ecommerce experiences.

• Create flexible, reusable frontend components and backend services that are well structured, testable and maintainable.

• Design and build robust integrations between Shopify and third-party platforms using REST, GraphQL, webhooks and asynchronous data flows.

• Work confidently with Shopify data and APIs covering products, collections, customers, orders, metafields and metaobjects, including authentication, data transformation and error handling.

• Assess when a Shopify-native feature, established app or bespoke solution is the most appropriate approach.

• Implement Shopify Functions, Checkout Extensibility, Shopify Flow and Markets where appropriate.

• Support migrations and replatforming projects onto Shopify, including data, content and integration considerations.

• Improve storefront performance, accessibility, SEO and overall technical quality.

• Use Git, Shopify CLI and agreed development and deployment workflows consistently.

• Review code, contribute to technical standards and help other developers deliver maintainable solutions.

• Estimate development work, contribute to technical discovery and communicate risks, dependencies and options clearly.

• Diagnose and resolve issues across existing Shopify implementations and live ecommerce sites.

• Support projects through development, QA, launch and post-launch optimisation.

• Work directly with clients where appropriate to understand requirements and explain technical solutions in plain language.

• Keep up to date with changes to Shopify and…