Job Summary: We are seeking a Java backend developer to design and build an abstract API that simplifies the automation of application management, working with the WES management team. Key Highlights: 1. Design and construction of an abstract API for automation 2. Professional growth in a dynamic and collaborative environment 3. Experience with OpenAPI specification We are looking for a backend developer with Java experience to join our team in Madrid. Your main responsibilities will include designing and building an abstract API that simplifies application management automation for our clients. You will be required to gather requirements, draft detailed specifications, and implement a robust API interface. The objective is to integrate applications into our Web Access Management Platform, retrieving key data such as application name, URLs, and security configurations. The interface will be developed in two phases. Initially, you will use the OpenAPI specification to send information to the Application Management Portal. Subsequently, you will transmit received data via an APM document. You will work with the WES management team and have support from an internal project. The ability to clearly document technical requirements will be valued. This position offers professional growth in a dynamic and collaborative environment. The contract is temporary. Technical Engineering degree. Four years of Java development experience. Fluent English level B2–C1 (spoken and written). Ability to gather requirements and draft technical specification documents. Familiarity with the OpenAPI specification.