Senior Application Administrator (ShopFloor-MES)

Join our team at Rheinmetall 4iG Digital Services (R4), a fast-growing international IT services company where innovation, impact, and opportunity come together! R4 was founded by Rheinmetall, a leading international systems supplier in the defence industry, and 4iG, Hungary’s leading integrated service provider in telecommunications, systems integration, space and defence industry. Besides delivering high-impact IT projects and services to Rheinmetall’s subsidiaries worldwide, 2026 marks an exciting new chapter, as we extend our reach beyond the global Rheinmetall IT organisation and enter the broader market, offering our expertise to external customers as well. Headquartered in Budapest, we combine the stability of a large international enterprise with the agility of a delivery-focused organisation. Built on strong foundations and guided by clear strategic goals, we are continuously expanding our service portfolio. Backed by two major industry groups and shaped by an international outlook, we offer an inspiring work environment with challenging assignments, international collaboration, and long-term career opportunities for talented professionals.

In order to achieve our common goals, we count on you

• Oversee the installation, configuration, maintenance, monitoring and support of ShopFloor/MES applications, ensuring optimal performance and minimal downtime.
• Implement and manage robust monitoring tools to proactively identify and resolve issues, ensuring continuous system availability.
• Ensure the security of MES applications by implementing and maintaining appropriate security protocols and access controls.
• Provide extensive 2nd Level Support & Coordinate 3rd Level issue resolutions.
• Participate in various projects related to system upgrades, migrations, and new implementations, ensuring timely delivery and alignment with business objectives and SLAs.

What you will need for successful work

• Successfully completed college/university studies in the field of information technology or comparable vocational training
• At least 5 years of professional experience in the administration of mission-critical applications
• Extensive know-how in IT service management (ITIL) and the design of service processes as well as knowledge in project management, preferably with certification
• Initial knowledge of manufacturing company processes and/or logistics processes desirable
• Strong customer and goal orientation, strong teamwork skills and good communication and presentation skills
• Strong problem-solving skills with the ability to diagnose and resolve complex technical issues.
• Strong English and German language knowledge

What we offer

• Take over an important and challenging role with high visibility
• Become part of the unique growth stories of Rheinmetall and 4iG, which offer outstanding development and career opportunities
• Gain insight into the defense and automotive industry
• Make use of the broad network with over 40.000 great colleagues at Rheinmetall and 4iG worldwide
• Benefit from various professional trainings and events
• Enjoy our international and flexible work environment with an official office in Budapest but up to 90% mobile work

What we are happy about

• Knowledge of working with ERP systems (preferably SAP) desirable
• Willingness to travel