Shopify App Developer

Shopify App Developer

Posted Today by Trust In SODA

£550 Per day
Outside
Remote
Great Work, England, United Kingdom

Summary: The Shopify App Developer role is a project-based contract focused on enhancing an existing Shopify app for publishers over a duration of approximately three months. The developer will be responsible for building new features, optimizing integrations, and improving workflows while working with an existing codebase. The position requires a strong background in Shopify app development and backend services using Java. The role is remote and offers a competitive daily rate outside of IR35 regulations.

Key Responsibilities:

  • Enhance and extend an existing Shopify app
  • Build new features using Shopify GraphQL APIs
  • Implement and optimise Shopify Fulfilment API integrations (critical)
  • Develop backend services in Java (Spring Boot)
  • Ensure stable and scalable integration between Shopify and internal systems
  • Debug and resolve issues across order, fulfilment, and inventory flows
  • Work closely with the team to deliver project milestones within the contract period

Key Skills:

  • Strong, hands-on experience building Shopify apps
  • Deep understanding of Shopify GraphQL API
  • Proven experience with the Shopify Fulfilment API (essential)
  • Solid backend experience with Java and Spring Boot
  • Experience with Shopify webhooks, authentication, and app lifecycle
  • Ability to quickly understand and work within an existing system
  • Comfortable delivering in a fast-paced, project-driven environment

Salary (Rate): £550 daily

City: Great Work

Country: United Kingdom

Working Arrangements: remote

IR35 Status: outside IR35

Seniority Level: Mid-Level

Industry: IT

Detailed Description From Employer:

Shopify App Developer

Location: Remote in UK

Duration: ~3 Months (Project-Based Contract - potential for renewal)

Rate: £450 - £550 per day

Outside IR35

Overview

We’re looking for an experienced Shopify App Developer to support a 3-month project focused on expanding an existing Shopify app used by publishers to sell publications via their storefronts. The app is already in production, and the goal is to enhance functionality, extend integrations, and improve fulfilment workflows. This role requires someone who can quickly get up to speed with an existing codebase and deliver high-quality improvements with minimal ramp-up time.

Key Responsibilities

  • Enhance and extend an existing Shopify app
  • Build new features using Shopify GraphQL APIs
  • Implement and optimise Shopify Fulfilment API integrations (critical)
  • Develop backend services in Java (Spring Boot)
  • Ensure stable and scalable integration between Shopify and internal systems
  • Debug and resolve issues across order, fulfilment, and inventory flows
  • Work closely with the team to deliver project milestones within the contract period

Required Skills & Experience

  • Strong, hands-on experience building Shopify apps
  • Deep understanding of Shopify GraphQL API
  • Proven experience with the Shopify Fulfilment API ( essential )
  • Solid backend experience with Java and Spring Boot
  • Experience with Shopify webhooks, authentication, and app lifecycle
  • Ability to quickly understand and work within an existing system
  • Comfortable delivering in a fast-paced, project-driven environment

Desirable

  • Experience with publishing, print, or similar product-based workflows
  • Familiarity with Shopify embedded apps or admin extensions
  • Experience improving or scaling production Shopify apps

Engagement Style

  • Project-focused delivery over a ~3 month period
  • Expected to be largely self-sufficient
  • Able to ramp up quickly and contribute from the outset
  • Clear communicator with regular progress updates