We're looking for an expert Shopify Full Stack Developer to build seamless, robust, and innovative in-store experiences for Shopify Point of Sale (POS). The ideal candidate has a deep understanding of Node.js and React, and is passionate about creating applications that solve real-world retail challenges. You will be instrumental in bridging the gap between online stores and physical retail operations by developing custom POS UI extensions and integrating essential third-party services. As a key member of our engineering team, you'll ensure our POS solutions are performant, reliable, and perfectly aligned with our clients' business needs. Responsibilities  - Architect, build, and maintain high-quality, reusable, and performant Shopify POS applications. - Develop custom UI Extensions using the Shopify POS UI Extensions SDK to create bespoke in-store workflows. - Integrate server-side logic and third-party services with POS frontend components. - Collaborate closely with project managers, frontend developers, and clients to define and address technical and business requirements for retail environments. - Thoroughly test and debug applications across various devices, including physical Shopify POS hardware. - Write clean, well-documented code and build reusable libraries for future use. - Stay ahead of emerging technologies and updates within the Shopify POS platform. - Troubleshoot complex issues in live retail environments, ensuring minimal disruption to store operations.

• Help lead the development of backend services for a government client leveraging the latest commercial and open-source technologies • Design, develop, document and deploy new or enhanced features to our backend services that meet functional / non-functional business requirements • Actively participate in the team’s elaboration and estimation of user stories • Build frequent, small releases to maintain the team’s momentum • Collaborate closely with other engineers in our cross-functional feature teams; ensuring that others can cover for you, and that you can cover for them • Build, optimise and operate our Continuous Deployment pipelines • Maintain operational responsibility for the services that your team owns

• Design, build, and maintain APIs, services, and systems across R2 • Own the product and solution architecture • Ensure best practices and uptime • Contribute to company-wide standards and reliability • Ensure delivery of mission-critical systems with tight deadlines • Increase the quality of the delivered code, towards a zero-bug policy • Research and invest in new tooling to improve services • Think about security throughout everything you do • Promote a culture that fosters learning, growth, risk taking, and accountability • Work with other teams to figure out how to build tools to make them more productive

• Design and build backend services and user interfaces to support certificate issuance, lifecycle management, automation, and integrations with internal and external systems • Develop and optimize SQL queries and database schemas • Work on certificate provisioning workflows, APIs, and system integrations, troubleshoot and resolve production issues with ownership mindset • Collaborate with product, QA, and DevOps teams for smooth feature delivery • Propose innovative solutions to improve system performance, automation, and reliability • Contribute to design discussions, code reviews, and documentation