Senior Java Developer

Description

### **Elite Challenge: Are You the Senior Java Developer Ready to Revolutionize Mission-Critical Systems?** **Location/Modality:** Madrid, Spain (Paseo de la Castellana) — On-site **Working Hours:** Monday to Friday, 09:00 – 18:00 Your Role and Mission in the Company At **Initium Software**, we are not a traditional consultancy; we are strategic partners who believe in real impact through technology. We connect top-tier technical talent with the most challenging and innovative projects in the market. We are seeking an elite **Senior Java Developer / Support Analyst**. Your mission will be to lead stability, diagnosis, and resolution of complex failures in distributed microservice architectures within the financial portfolio of one of our most important clients. This is not about monotonously maintaining code, but about being the key piece ensuring high availability of critical systems through cutting-edge support engineering (L2/L3\). ### **Your Mission** * **Ensure High Availability:** Provide L2/L3 support for Java/Spring Boot microservices and REST API integrations. * **Advanced Environment Diagnostics:** Detect and resolve runtime failures in distributed architectures across cloud and on\-premise ecosystems (AWS, IBM Cloud, WebSphere, Docker/Kubernetes). * **Data Flow Optimization:** Resolve incidents in high-traffic enterprise messaging systems, managing concurrency, performance, and lag in Apache Kafka and IBM MQ. * **Adaptive Software Engineering:** Implement code-level fixes, refactoring, and test coverage improvements for legacy Java services. * **Intelligent Monitoring and Automation:** Contribute to *shift\-left* automation initiatives, develop self\-healing scripts, and optimize observability alerts using ELK Stack or Splunk. ### **Your Arsenal (What We’re Looking For)** **Mandatory:** * **Experience:** 8–10 years of solid experience in Java/J2EE software development and support for critical applications. * **Service-Oriented Approach (ASM):** Proven experience in Managed Services (AMS) and application support under strict ANS/SLA frameworks. * **Core Technology Stack:** Expert-level proficiency in Spring Boot, microservice architecture, and maintenance of RESTful APIs. * **Databases \& Messaging:** Experience optimizing queries and resolving incidents in MongoDB, IBM DB2, MSSQL, or Elasticsearch; as well as managing Apache Kafka or IBM MQ. * **Containers:** Operational experience with Docker and Kubernetes. * **Languages:** Intermediate\-to\-advanced English (minimum B2) and fluency in Spanish to effectively interact in multicultural environments. * You hold ITIL (ITSM) certification or possess strong ITIL knowledge. * You have experience in the banking or financial services sector. We Especially Value If You Also Have * Familiarity with CI/CD tools (Jenkins, GitLab CI, Maven, SonarQube). * Passion for learning, sharing ideas, and evolving alongside the team. How Will We Measure Your Impact? * Ensuring P3/P4 ticket resolution within stipulated service levels (\>=95%). * Maintaining an outstanding Mean Time to Recovery (MTTR) for critical incidents. * Actively contributing to the Known Error Database (KEDB) and Standard Operating Procedures (SOP) to reduce incident recurrence to less than 5%. ### **Perks** What Do We Offer You? * **Compensation:** Competitive fixed salary aligned with your expert level. * **Location:** Work based at the client’s Madrid offices within a dynamic, high-level corporate ecosystem. * **High-Performance Environment:** A space where your initiative is valued, your impact is recognized, and your professional growth is genuinely supported. * **Initium Culture:** A model built on autonomy, collaboration, dynamism, and continuous learning — far removed from traditional rigid structures. ### **Let’s Talk About the Future!** At Initium, we don’t just develop technology: we create an environment where people can evolve, deliver value, and leave a lasting mark. If you’re looking for a place where your code and problem-solving ability make a real impact on large-scale financial systems, we want to meet you. Apply now by sending your CV — Let’s talk!