Job Summary: We are seeking Senior Java Backend Developers for a strategic technological transformation project within a highly regulated financial environment. Key Highlights: 1. Participate in a critical technological transformation project 2. Hands-on development in Java and Spring Boot 3. Work in environments with high compliance and audit standards We are looking for **two Senior Java Backend Developer profiles** with strong expertise in **SQL and cloud infrastructure**, to join immediately a strategic project within a highly regulated financial environment. Position Details* **Working Hours:** Mon–Thu 11:00–20:00 / Fri 11:00–17:00 * **Start Date:** Immediate * **Work Model:** Hybrid (Madrid 3/2 and Andalusia 4/1\). Remote work possible for exceptionally strong candidates * **Maximum Rate:** €39–40/h * **Financial Terms:** Salary increase after probation period Project You will participate in a critical technological transformation project including:* Implementation of the **PSI DB single-instance database** * Data migration and consolidation across systems * Remediation of existing vulnerabilities * Configuration of **UAT and Disaster Recovery environments** * Support in the implementation of **ARDA** * Execution of decommissioning plans (Triage) * Architectural optimization of applications undergoing consolidation Responsibilities* **Hands\-on** development in Java and Spring Boot * Code refactoring and resolution of complex incidents (troubleshooting) * Execution of migrations and advanced SQL optimization * Design, deployment, and maintenance of infrastructure on **AWS** * Management of CI/CD pipelines * Work in environments with high compliance and audit standards * Clear communication of technical solutions to non-technical stakeholders Mandatory Requirements* **5–10 years of IT experience** * **Java \+ Spring Framework (minimum 2–3 years)** * **Advanced SQL (3–5 years)**CTEs * Query plans * Optimization and indexing * Troubleshooting of complex queries * Experience with **CI/CD** (Jenkins, GitHub Actions, UrbanCode) * Experience with **AWS** (S3, SQS, SSM, KMS) * **C1 or fluent English level (mandatory)** * Communicative, collaborative, and business-oriented profile * Added Value * Experience in financial or highly regulated environments * Architectural analysis capability and optimization of complex systems * Autonomous and solution-oriented profile Location (Hybrid)