Senior Middleware & API Integration Engineer

gategroup is seeking an experienced Senior IT Engineer (Middleware / Integrations) to design, build, operate, and continuously improve enterprise integration services enabling reliable data exchanges across business applications and external partners. You will work within a global team to ensure secure, performant interfaces. Based in Madrid, Spain, the role covers API and messaging integration, CI/CD pipelines, observability, and security controls, with a focus on high availability and J-18808…