### **Description** At **Izertis**, we are looking for a **Senior Backend Developer** with over 5 years of experience in Java and microservices to join our team. **What are the essential requirements?** * Java from version 11 onwards * Spring / Spring Boot * Kafka (solid experience) * REST services and microservices * DDD (Domain Driven Design) * Hexagonal architecture * TDD / ATDD / Cucumber * Mockito / JUnit * Jenkins, Sonar * SOLID principles and design patterns * Knowledge of ACID * Agile / Scrum environments **What are the desirable requirements?** * Prior experience defending technical solutions or technical challenges * Contributions to architectural decisions * Good CI/CD practices **What will you do on a day-to-day basis?** * You will participate in the design and development of robust and scalable Backend solutions. * You will work in an Agile environment (Scrum), closely collaborating with other developers, QA engineers, and Product Owners. * You will apply design principles such as DDD, hexagonal architecture, and design patterns to build high-quality software. * You will integrate and consume REST services and microservices. * You will use Kafka as a key tool for event management and messaging. **What do we offer?** * Permanent contract * Flexible working hours * Challenging and collaborative technical environment * Participation in innovative and high-impact projects * Flexible compensation package that may include private health insurance, meal vouchers, transportation allowance, childcare support, etc. * Continuous training to help you advance your professional career and specialize in areas you are passionate about. **Who are we?** Izertis, with over 29 years of experience, listed on the BME Continuous Market and among the top 1,000 fastest-growing companies across European countries, offers you the opportunity to develop your professional career alongside more than 2,300 employees through our offices across Europe, the Americas, and Africa, and with a presence in over 50 countries where we deliver services and projects via an extensive portfolio of solutions. If you believe this opportunity may be of interest to you, don’t hesitate to apply! ### **Minimum Requirements** Java from version 11 onwards Spring / Spring Boot Kafka (solid experience) REST services and microservices DDD (Domain Driven Design) Hexagonal architecture TDD / ATDD / Cucumber Mockito / JUnit Jenkins, Sonar SOLID principles and design patterns Knowledge of ACID Agile / Scrum environments Location**Madrid** Category**Information Technology and Telecommunications** Subcategory**Programming** Sector**Programming, Consulting, and Other IT Activities** Working Hours**Full-time** Work Modality**Hybrid (On-site and Remote)** Professional Level**Employee** Department**Information Technology**