Shopify Mobile App Developer

About Swanky

We're Swanky, a fast-growing global ecommerce agency. We design, build and grow Shopify Plus stores that convert, and we're expanding our expertise into mobile-first ecommerce experiences.

If you've built mobile apps that engage customers, integrated with Shopify APIs, and want to be part of a team that creates seamless shopping journeys across devices, this could be just the role for you.

About the Role

This is a Mobile App Developer (Flutter + Shopify) role. Applicants are expected to have strong commercial experience building cross-platform mobile applications in Flutter, combined with solid experience delivering Shopify storefronts, apps or integrations.

You'll work with our developers, designers, analysts and project managers to create connected, mobile-first ecommerce solutions. From architecting new apps to integrating Shopify APIs into mobile experiences, you'll be the team's go-to person for mobile innovation and problem solving.

Daily tasks could include:

• Building and maintaining cross-platform mobile apps in Flutter and Dart.
• Integrating Shopify APIs into mobile apps (products, carts, checkout, customer accounts).
• Extending Shopify with custom apps, checkout extensions or headless integrations.
• Designing scalable mobile architectures that support ecommerce performance.
• Helping scope technical requirements with project managers and clients.
• Mentoring junior developers and contributing to our development culture.

Key Responsibilities

• Design, develop, test, deploy and maintain mobile applications using Flutter.
• Deliver connected ecommerce experiences by integrating with Shopify APIs.
• Work with Shopify storefronts, apps, and checkout extensions as needed.
• Build robust, performant, and maintainable mobile codebases.
• Collaborate with the Director of Technology on product and solution design.
• Conduct code reviews and ensure coding standards are upheld.
• Mentor peers and knowledge-share to uplift the team's mobile expertise.

About You

You're a mobile-first engineer who loves creating high-performing user experiences. You're also comfortable navigating Shopify's ecosystem and can bridge mobile apps with ecommerce backends. You thrive in a fast-paced, collaborative environment where no two projects are the same.

Role Requirements

• 2+ years commercial experience as a Mobile Developer.
• 1+ years Flutter/Dart experience, delivering cross-platform mobile apps.
• Proven experience integrating apps with Shopify APIs (REST, GraphQL).
• Practical experience working with Shopify storefronts, apps, or Plus builds.
• Strong understanding of mobile app architecture, state management, and performance optimisation.
• Experience integrating third-party APIs and SDKs.
• Familiarity with app deployment (App Store, Google Play).
• Good knowledge of modern web development (HTML, CSS, JavaScript).
• Solid understanding of Git and version control.
• Strong communication and collaboration skills.

Advantageous

• Experience with React Native.
• Experience with headless ecommerce.
• Experience with Firebase or Supabase (mobile backends).
• Experience with TypeScript.
• Previous lead developer experience on mobile projects.
• Knowledge of CI/CD for mobile apps.
• Familiarity with Agile/Scrum workflows.
• Deep understanding of performance, animations or accessibility in mobile.

Benefits

• Salary negotiable based on experience.
• Pension.
• 30 days holiday per year inclusive of bank holidays, plus 1 additional day per year served (capped at 5).
• Flexible working hours during the day.
• In-person, hybrid and remote working flexibility.
• Beautiful Exeter-based offices.
• Free unlimited tea, hot chocolate and coffee (in the office).
• Opportunity to work on fun, challenging, and often high-profile projects.
• Investment in your professional development and skills growth.
• Be part of an inspiring, collaborative and ambitious team.
• Regular team meetups, socials and events, including games nights and lunchtime quizzes.