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Senior Shopify Developer

Job in Montreal, Montréal, Province de Québec, G4F, Canada
Listing for: Quantum Lead
Full Time position
Listed on 2026-07-10
Job specializations:
  • Software Development
    Software Architect, Senior Developer, Backend Developer, Front End Developer
Job Description & How to Apply Below
Location: Montreal

Position Overview

We are seeking a Senior Shopify Developer to play a critical role in our fast-growing agency to manage product development while also supporting high-impact client initiatives as a senior technical contributor.

This role is hands-on and execution-focused, with additional responsibility for technical architecture, code quality, and guiding other developers. You will act as a technical lead on product work streams and select client projects.

Key Responsibilities
  • Lead the end-to-end development of Shopify-based products, including custom apps, storefront extensions, and internal tooling.
  • Own technical decisions related to architecture, performance, scalability, and maintainability.
  • Establish and maintain best practices for deployments, versioning, and CI/CD workflows.
  • Support client discovery and solution design by translating business requirements into technical architecture.
  • Design and review Shopify system architectures, including integrations with ERP, POS, payments, and third-party platforms.
  • Serve as a senior technical advisor on Shopify capabilities, including Shopify Functions, UI Extensions, and custom app patterns.
  • Provide technical oversight for client-facing development work to ensure alignment with best practices.
  • Conduct thorough code reviews to uphold internal engineering standards.
  • Provide guidance and technical direction to other developers through reviews, pairing, and documentation.
  • Contribute to internal documentation, architectural decision records, and reusable patterns.
Why Join Us
  • Build a Shopify product from the ground up with real ownership and impact.
  • Work on complex, enterprise-grade Shopify implementations.
  • Collaborate closely with leadership and influence technical direction.
  • Join a growing consultancy with deep expertise in unified commerce.
Who You Are
  • You are highly autonomous and comfortable owning complex technical problems end to end.
  • You communicate clearly and confidently, especially in client-facing technical discussions.
  • You are pragmatic and delivery-oriented, balancing speed with long-term code quality.
  • You enjoy mentoring other developers and raising the technical bar of the team.
  • You are comfortable moving between deep product build work and client advisory responsibilities.
Qualifications Required
  • 5+ years of professional web development experience, with deep expertise in Shopify.
  • Proven experience building custom Shopify apps and advanced storefront customizations.
  • Strong understanding of Shopify APIs, GraphQL, and modern frontend and backend development patterns.
  • Experience designing scalable architectures for high-growth or enterprise Shopify merchants.
Preferred
  • Experience with Shopify POS, ERP integrations, or unified commerce environments.
  • Prior consulting or agency experience.
  • Exposure to multi-store, multi-region, or high-volume Shopify deployments.
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Position Requirements
10+ Years work experience
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