Backend Developer

Why Valtech? We’re the experience innovation company — a trusted partner to the world’s most recognized brands. To our people, we offer growth opportunities, a values-driven culture, international careers, and the chance to shape the future of experience. The opportunity At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking, or building the next generation of customer experiences, your work will help transform industries. We are proud of: The work we do and the innovation we drive Our values of Share, Care and Dare A workplace culture that fosters creativity, diversity, and autonomy Our borderless, global framework, which enables seamless collaboration The Role As a Backend Developer , you will play a key role in building scalable, high-performance e-commerce solutions on the Shopify platform. We are looking for an experienced developer with 5+ years of backend development experience and strong expertise in Shopify, JavaScript, Liquid, and Node.js . You will work closely with project owners, solution architects, QA engineers, and technical leads to deliver secure, scalable, and high-quality solutions for our clients. You Will Thrive in This Role If You Are A curious problem solver who enjoys challenging the status quo. A collaborative professional who values teamwork and knowledge sharing. Excited about the intersection of technology, creativity, and data. Comfortable working in Agile/Scrum environments. Experienced in consulting or client-facing environments — a plus. Role Responsibilities Collaborate with project owners, solution architects, QA teams, and tech leads to deliver high-quality, high-performance e-commerce solutions within client timelines and budgets. Design and implement backend solutions following Shopify best practices. Write elegant, scalable, secure, and high-performing code on the Shopify platform. Participate in story refinement, requirements analysis, and technical solution design. Develop solutions based on user stories and technical requirements. Work with Shopify APIs, including GraphQL and REST, as well as third-party APIs and integrations. Develop and maintain backend integrations between Shopify and external systems and services. Work with Shopify webhooks and event-driven integrations. Follow Agile/Scrum methodologies throughout the development lifecycle. Create clear and maintainable technical deliverables, including technical designs, documentation, and prototypes. Apply secure development practices and adhere to established coding and architectural standards. Identify and address issues related to architecture, performance, code quality, integrations, and development processes. Collaborate on technical improvements and initiatives proposed by architects and technical leaders. Troubleshoot and debug backend issues across Shopify applications, integrations, APIs, and production environments. Must-Have Qualifications 5+ years of experience working with backend or full-stack technologies. Strong experience in Shopify backend development . Proficiency in JavaScript, Liquid, and Node.js . Hands-on experience with Shopify Plus . Experience with Shopify Functions and Checkout Extensibility . Experience working with Shopify APIs, including Admin API and Storefront API . Strong experience with GraphQL and RESTful APIs . Experience developing and consuming third-party APIs and integrations. Knowledge of Shopify webhooks and event-driven integrations . Solid knowledge of Shopify concepts, including products, collections, orders, customers, metafields, and metaobjects. Knowledge of Git and source control management. Experience with package and build tools such as npm, Webpack, and Gulp . Understanding of Core Web Vitals and web performance best practices. Basic understanding of technical SEO principles . Experience with responsive web development and frontend technologies, including HTML, CSS, and JavaScript . Experience working in Scrum environments . Strong problem-solving and debugging skills. Advanced English level . Nice-to-Have Qualifications Experience with Next.js or Remix.js . Familiarity with functional programming concepts. Experience working with other e-commerce platforms. Knowledge of testing frameworks such as Mocha, Jasmine, or Jest . Understanding of Server-Side Rendering (SSR) methods and Headless CMS solutions. Experience with React or other modern frontend frameworks. Experience with CI/CD pipelines and cloud-based development environments. Experience in e-commerce consulting or client-facing projects . If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn. Commitment to reaching all kinds of people We design experiences that work for all kinds of people — and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive, and achieve their goals. No matter your background, you belong here. The benefits This is a Full time position based in Brazil. Beyond a competitive compensation package, we offer: Flexibility, with remote and hybrid work options (country-dependent) Career advancement, with international mobility and professional development programs Learning and development, with access to cutting-edge tools, training and industry experts Our benefits are tailored to each location. Your Talent Partner will provide full details during the hiring process. Your application process Once you apply, our Talent Acquisition team will review your application. If your skills and experience align with the role, we’ll reach out for next steps. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential. ⚠️ Beware of recruitment fraud: Only engage with official Valtech email addresses. We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know. About Valtech Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world. At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more. At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate. Are you ready to create what’s next? Join us.