Ready to Take Your Career to the Next Level?

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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 global 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, adaptable policies, and social benefits (meal vouchers, transport, childcare support, private health insurance).
- Well-being: Our WeCare program 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 Call with 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 through backend excellence and AI innovation .

Diversity & Inclusion

At Amaris Consulting , we celebrate diversity and are committed to creating an inclusive environment. xqbhyrx All qualified candidates are welcome, regardless of gender, sexual orientation, race, ethnicity, age, or any other characteristic.

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