Senior Full-Stack JavaScript Developer

Company BARFER\’S, founded in 2011, is a Berlin-based pioneer in biologically appropriate raw food (BARF) for dogs and cats. Inspired by nature, the company is dedicated to providing species-appropriate, high-quality nutrition. Backed by veterinarians, passionate expertise, and customer feedback, BARFER\’S aims to revolutionize the pet food market by making BARF the nutritional standard. With in-house production, eight retail stores, and an online shop, they ensure meticulous quality control and accessibility for pet owners everywhere. Tasks: To extend and optimize the Shopify-based e-commerce stack, integrating with warehouse and logistics platforms like iPacky and Webshipper To build and maintain scalable custom applications and services supporting ERP (Sage 100)-driven warehouse automation and digitalization To lead API integrations with partners and third-party logistics services to automate business workflows To architect and implement new features for current and future post-purchase operations, focusing on reliability and scalability To collaborate cross-functionally in an agile environment, sharing your insights and shipping continuously Must-have: 5+ years experience in full-stack web development Deep understanding of JavaScript, TypeScript, and fundamentals (HTML/CSS) Hands-on experience developing Shopify custom apps and theme extensions Experience working with ERP systems, ideally Sage 100, and warehouse solutions Expertise in API consumption and development (REST, GraphQL) Familiarity with CI/CD pipelines, Webpack, Gulp, and frontend automation tooling Nice-to-have: Knowledge of cloud platforms (AWS/GCP) Experience with barcode-driven warehouse solutions or IoT integrations Solid grasp of e-commerce logistics, shipping workflows, and customer experience tooling You’ve led or contributed to high-availability systems and architecture discussions German proficiency Benefits and conditions: Trial period: 30 days holiday a year and an extra day off on your birthday Flexible working hours and hybrid working (ideally 2-days office) Permanent employment contract Internal and external trainings for your further development Christmas parties, team events and much more Discounts: All employees benefit from the company\’s 30% employee discount BARFER\’S card worth 50 euros a month They also contribute to the Deutschlandticket Interview process: Intro call with Toughbyte An hour call with the CTO Call with PM Call with the Senior Full-Stack Developer in Shopify Senior Full-Stack JavaScript Developer at BARFER’S