Senior Backend Engineer (Java/Spring) en Madrid, España

About the role

We are seeking a Senior Backend Engineer to join our growing technology team in Madrid. This is a Full-time, on-site position where you will design and develop robust backend systems using Java and Spring Framework. You will work on scalable microservices architecture, collaborate with cross-functional teams, and mentor junior developers. This role offers the opportunity to work on high-impact projects that serve thousands of users daily.

Who are we looking for

We're looking for an experienced backend engineer with a passion for clean code and system design. You should have a deep understanding of software architecture principles and be comfortable working in an agile environment. You are someone who enjoys solving complex technical problems, takes ownership of your work, and is committed to continuous learning. We value developers who can communicate effectively with both technical and non-technical stakeholders, and who are eager to share knowledge with their team.

Skills and competencies

• 5+ years of professional experience in backend development with Java
• Strong expertise in Spring Boot and Spring Framework
• Experience with RESTful API design and implementation
• Proficiency in relational databases (PostgreSQL, MySQL) and SQL optimization
• Understanding of microservices architecture and distributed systems
• Experience with Docker, Kubernetes, and CI/CD pipelines
• Knowledge of message queues (RabbitMQ, Kafka) is a plus
• Excellent problem-solving skills and attention to detail
• Strong communication and teamwork abilities
• Fluent in Spanish and English

Benefits, additional requirements, details

• Competitive salary range: €65,000 - €95,000 per year based on experience
• Private health insurance and dental coverage
• Flexible working hours with core hours between 10:00-16:00
• Professional development budget (€2,000/year) for courses and conferences
• Collaborative workspace in the heart of Madrid with modern facilities
• Lunch vouchers and free coffee/snacks
• Team building activities and company social events
• Performance bonus tied to quarterly objectives
• Pension plan contributions
• Opportunity to mentor junior developers and grow into leadership roles

Technical environment

You will work with modern technologies including Java 17+, Spring Boot 3.x, PostgreSQL, Docker, and Kubernetes. Our infrastructure is cloud-based on AWS, and we follow DevOps best practices. Code reviews and pair programming are integral to our development process, ensuring high code quality and knowledge sharing.

Application process

Please submit your CV, a brief cover letter, and links to your GitHub profile or portfolio showcasing your backend development work. We review applications on a rolling basis and conduct initial interviews within 5-7 business days.