Ready to Take Your Career to the Next Level? Join Amaris Consulting and work on cutting-edge projects that impact thousands of users worldwide. Be part of an international team, thrive in an agile environment, and grow with a global group that truly values innovation, technology, and talent. As a Senior Back-End Developer, you will play a key role in designing and building scalable, high-performance backend systems, with a strong focus on AI-driven solutions. Your work will directly influence general products used by leading clients across multiple industries. What You’ll Do * Design, develop, and maintain robust backend applications using Node.js and TypeScript. * Build scalable APIs and microservices following clean architecture and best practices. * Work hands-on with AI-powered solutions, integrating and optimizing Large Language Models (LLMs) in real, production environments. * Collaborate closely with product, frontend, data, and AI teams to deliver end-to-end solutions. * Contribute to technical decisions, architecture discussions, and continuous improvements.



* Mentor junior developers and promote best practices across the team. * Stay up to date with backend, cloud, and AI/LLM trends. What We’re Looking For * 5–7 years of experience as a Back-End Developer. * Strong expertise in Node.js and TypeScript. * 2–3 years of real, hands-on experience working with AI solutions * Solid understanding of backend architecture, RESTful APIs, microservices, and asynchronous systems. * Experience with version control systems (Git) and Agile methodologies. * Excellent soft skills: strong communication, teamwork, and stakeholder collaboration abilities. * Ability to work autonomously in distributed, multicultural teams. * Spanish: Native * Career Growth: 70% of our senior leaders started in entry-level roles. * Continuous Learning: Access to our Technology Academy, Udemy courses, webinars, and company-paid certifications. * Flexibility: Fully remote position, flexible policie

📌 Desarrollador de back-end (Barcelona)
🏢 Amaris Consulting
📍 Barcelona