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 integral 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, flexible 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. All qualified candidates are welcome, regardless of gender, sexual orientation, race, ethnicity, age, or any other characteristic.

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