Giesecke+Devrient is a general company that offers security technologies, both in the physical and digital world. Every day, billions of people benefit from G+D innovations in their personal and business lives. With around 11,600 employees across 32 countries, we develop, manufacture, and distribute products and solutions for the safeguarding of payment processes, identities, connectivity, and data.

At G+D Mobile Security, the world leader in secure telecommunications systems via SIM / eSIM, we are looking for an Application Engineer eSIM and IoT
This is a hands-on engineering role in an international team responsible for deployment and administration of Java applications developed in-house. You will collaborate closely with the developers and with colleagues from IT Infrastructure and Customer Support.

Responsibilities:
Install, integrate, and troubleshoot Java-based applications hosted at G+D Datacenters and Cloud environments for market-leading customers.
Operate web servers, proxy servers, and Java applications in a Linux-based environment,



including the management of digital certificates and keys.
Analyze and resolve incidents related to Java applications, in compliance with the service level agreements and service processes based on the ITIL framework.
Implement, test, and document new customer solutions in close coordination with project management and other internal teams.
Maintain and enhance our monitoring, logging, and event management systems.
Automate regular operational support tasks and system deployments using scripts and Ansible.

Knowledge and skills:
Degree in Computer Sciences or equivalent qualification.
Experienced in managing Web Servers, Apache, Tomcat, and Java Applications in a Linux based environment.
Basic knowledge of Cloud Computing environments, particularly AWS, and container orchestration, such as Kubernetes (e.g. Amazon ECS).
Understanding of networking concepts (OSI model, TCP/IP).
Scripting skills (e.g., Bash, Python) and ideally

📌 Application Engineer (Barcelona)
🏢 Giesecke+Devrient
📍 Barcelona