.Net Developerssis + Sql(Remoto) (Madrid)

We’re hiring Senior Java Developers. Our client in the iGaming industry (online casino and sportsbook) is looking for a Senior Java backend engineer to work in a hybrid model from Madrid (3 days in the office, 2 days remote). Salary: €65,000–€70,000 gross per year (DEO) plus 10% bonus.

Overview

We are seeking a Senior backend engineer to build and scale core platform services in a distributed, event‑driven environment. The role focuses on designing reliable, high‑performance systems, including APIs, asynchronous workflows, and distributed transactions. You will ensure system resilience, data integrity, and observability while contributing to testing, security, and CI/CD practices. Collaboration with engineering, DevOps, and compliance teams is key to shaping architecture and maintaining high standards in performance, scalability, and reliability.

Responsibilities

• Develop and maintain core backend services (identity, transactions, data integrit...