Ready to take your career to the next level? Join

Amaris Consulting and work on projects that impact thousands of users worldwide. Be part of an international team, thrive in an agile environment, and grow with a general group that values innovation and talent. As a

Backend Developer (Node.js) , you will play a key role in designing and developing robust, scalable backend systems that drive global digital solutions. Your work will directly influence high‑impact products used by top‑tier international clients What You’ll Do

Backend development: Design, build, and maintain scalable backend systems using

Node.js with Fastify . API development: Act as an expert in designing and implementing secure and efficient APIs. Database management: Work with

SQL and NoSQL databases to ensure data integrity and performance. System architecture: Contribute to architecture decisions focusing on scalability, fault tolerance, and error recovery. Support microservices design and implementation. CI/CD & testing: Implement and maintain CI/CD pipelines and strong automated testing practices. Containerization & orchestration: Use

Docker and

Kubernetes

(OpenShift is a plus) for deployment and system operations. InnerSource/Open Source: Contribute to InnerSource/Open Source initiatives to drive innovation and collaboration. Learning mindset: Quickly learn and apply new technologies to optimize development workflows. Collaboration: Participate in Agile projects, collaborating across backend and frontend initiatives. Qualifications

Experience & Education

Minimum

5 years of experience in software engineering developing complex and distributed applications. Bachelor’s degree in Computer Science, IT, or related field. Technical Skills

Proficiency in backend development with

Node.js + Fastify . Experience with

SQL and NoSQL databases.



Strong understanding of software/system architecture, scalability, fault tolerance, and error recovery. Knowledge of

CI/CD , automated testing, Docker, and Kubernetes ( OpenShift is a plus ). Expertise in API development and microservices architecture. Strong knowledge of

GitHub , workflow automation (GitHub Actions, GitOps, scripting), certifications are a plus. Commitment to best engineering practices: clean code, documentation, maintainability Behavioral Skills

Excellent communication skills in

English

(French and Spanish are a plus). Ability to coordinate with multiple stakeholders in large international environments. Proactive and strategic mindset focused on innovation and continuous improvement. Career Growth:

70% of senior leaders began their careers in entry roles. Continuous Learning:

Access to the Technology Academy, Udemy courses, webinars, and paid certifications. Flexibility:

Remote options, versátil policies, and benefits (meal vouchers, transport, childcare, health insurance). Well‑being:

Support through our WeCare program during critical situations. Personal Development:

Annual training budget to develop your skills. We believe in a transparent and candidate‑friendly process: Initial Call with our recruitment team.

First Interview: Review your experience and align project opportunities.

Second Interview: Technical → meet with an expert Second Interview: Non-technical → meet with a project manager Client Meeting: Get to know the project context and expectations.

Final Conversation: Q&A; + mutual fit confirmation Average timeline: 1–2 weeks Ready to Make an Impact? Apply now and join a team that drives innovation and global growth!

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.

📌 Full Stack Developer (Madrid)
🏢 Amaris Consulting
📍 Madrid