> Markdown version of [/jobs/ext/1926352-desarrollador-de-back-end](https://www.wearedevelopers.com/jobs/ext/1926352-desarrollador-de-back-end). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Desarrollador De Back-End - **Company:** Amaris - **Location:** Madrid, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Agile Methodology, Artificial Intelligence, Cloud Computing, Language Modeling, Node.Js, Software Architecture, TypeScript, Large Language Models, Backend, Git, Front End Software Development, Restful APIs, Software Version Control, Microservices - **Published:** August 5, 2026 - **Apply:** https://www.buscojobs.com.es/desarrollador-de-back-end-en-madrid-ID-365582986 ## About the Role 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 ## Description Ready to Take Your Career to the Next Level?JoinAmaris Consultingand 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 aSenior Back-End Developer , you will play a key role in designing and building scalable, high-performance backend systems, with a strong focus onAI-driven solutions.Your work will directly influence global products used by leading clients across multiple industries.What You'll DoDesign, develop, and maintain robust backend applications usingNode.js and TypeScript .Build scalable APIs and microservices following clean architecture and best practices.Work hands-on withAI-powered solutions , integrating and optimizingLarge 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 For5-7 years of experienceas aBack-End Developer .Strong expertise inNode.js and TypeScript .2-3 years of real, hands-on experience working with AI solutionsSolid 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: NativeCareer 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 policies, and social benefits (meal vouchers, transport, childcare support, private health insurance).Well-being:OurWeCareprogram supports employees in critical life situations.Personal Development:Annual training budget to continuously boost your skills.We believe in a transparent and candidate-friendly hiring experience:Initial Callwith our recruitment team to align expectations and profile.First Interview:Deep dive into your experience and project alignment.Second Interview:Meet with a technical expert to assess technical and AI/LLM experience.Client Interview:Get to know the client and project details.Final Conversation:Final alignment and offer discussion.Ready to Make an Impact?Apply now and join a team that is shaping the future of technology throughbackend excellence and AI innovation .Diversity & InclusionAtAmaris Consulting , we celebrate diversity and are committed to creating an inclusive environment.All qualified candidates are welcome, regardless of gender, sexual orientation, race, ethnicity, age, or any other characteristic.#J-*****-Ljbffr ## Related Videos - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Stop using Node.js like in 2020! 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