Senior Full Stack Developer, Integrations

About Teifi Teifi Digital, a Shopify Plus Platinum partner, excels in resolving complex e-commerce challenges. We focus on integrating large catalogs, sophisticated data frameworks, and legacy systems into seamless unified commerce and B2B solutions, delivering unparalleled customer experiences. Our skill in deploying Shopify Plus caters to top-tier merchants in manufacturing, parts, distribution, retail, and B2B, ensuring minimal technical debt and maximized e-commerce revenue. An AI-Forward Workplace AI is embedded in how we work. Our team regularly uses AI tools to enhance productivity, streamline processes, and deliver better outcomes. Candidates joining us should be comfortable leveraging AI as part of their day-to-day workflow and open to developing their skills as these tools evolve. Familiarity with AI tools is a plus; a willingness to learn and adapt is a must. As part of our hiring process at Teifi Digital, any offer of employment is conditional upon the successful completion of a background check. Role Overview We are seeking a Senior Full Stack Developer with expertise in web and Shopify app development. In this role, you will build custom microservices, private apps, and integrations for our clients, as well as contribute to the development of Teifi Labs products. You will be responsible for back-end development using TypeScript, Node.js, PostgreSQL, Redis, GraphQL, and REST APIs, while also contributing to front-end work using React where necessary. Key Responsibilities Develop custom Shopify apps, microservices, and integrations using TypeScript, Node.js, PostgreSQL, GraphQL, and REST APIs. Build and maintain scalable backend architectures that integrate seamlessly with Shopify and third-party services. Implement and manage integrations with external systems like ERPs, WMS, and POS, ensuring smooth data flow and functionality. Work on front-end projects where necessary, utilizing React and the Shopify Polaris component library to build user-friendly interfaces. Troubleshoot and resolve technical issues, particularly in app integrations and customizations for Shopify Plus clients. Collaborate with cross-functional teams, including designers, developers, and product managers, to deliver tailored solutions. Contribute to the continuous improvement of our development processes and app infrastructure. Maintain comprehensive documentation, including technical specifications and Standard Operating Procedures (SOPs). Qualifications Proven experience as a Senior Full Stack Developer, with a focus on building microservices and Shopify apps. Strong proficiency in TypeScript, Node.js, PostgreSQL, Redis, GraphQL, and REST APIs. Experience working with front-end technologies, particularly React, Remix, HTML, and Tailwind/CSS. In-depth knowledge of Shopify's architecture, APIs, and app ecosystem. Familiarity with version control (Git) and agile development methodologies. Experience integrating third-party services such as ERPs, WMS, and POS systems with Shopify. Strong problem-solving skills and attention to detail in building scalable, secure applications. Ability to work both independently and as part of a collaborative team in a remote/hybrid environment. Benefits & Perks Canada Ongoing professional development through training programs, certifications, and peer mentorship Hybrid work model depending on role, with a Granville Island office and free on-site parking Flexibility in work hours designed to accommodate appointments and personal responsibilities Comprehensive health and dental coverage in Canada, plus a health spending account Paid office closure between Christmas and New Year’s Regular team culture events, stocked office snacks, and a dog friendly workplace Performance based bonus opportunities for full-time employees Netherlands Opportunities for travel to Canada and hybrid work in the Netherlands office. Performance incentives for outstanding contributions. Fast career growth within a company that has doubled every year in size over the last three years. We are an equal opportunity employer and love diversity at our company! We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, or disability status.