0Senior System Engineer - Focus on Network Mainframe (m/f/d)
BWI GmbH | Germany | 04xxx, 89xxx, 81xxx, 65xxx, 80xxx, 20xxx, 60xxx, 22xxx, 21xxx, 10xxx, 14xxx, 13xxx, 12xxx, 90xxx, 53xxx Bonn, Frankfurt, Hamburg, München, Nürnberg, Ulm, Berlin, Leipzig | Permanent position | Full time / Home office | Published since: 22.07.2026 on stepstone.de

Senior System Engineer - Focus on Network Mainframe (m/f/d)

Branch: Computer science, informati... Branch: Computer science, information and communication technology


As a primary digitization partner of the Bundeswehr, we provide stable, safe and efficient IT services in Germany and abroad, from basic operations to the field close to the application and thus contribute to the continuous increase in the leadership and operational capacity of the Bundeswehr. With more than 8,000 colleagues, we operate and modernise one of the largest and most complex IT infrastructures in Germany. We are looking for responsible IT specialists who are convinced that the Bundeswehr-IT will further develop in challenging digitalization projects and thus contribute to Germany's security. Together with us, we are concerned about the future digital capability of the Bundeswehr. Senior System Engineer - Mainframe (m/w/d) from October and full time at one of our BWI locations. The ITOM 2 Application department provides the hardware/software infrastructure for the operation of the central applications of the Bundeswehr at the data center locations in Bonn and Strausberg. It is responsible for the design of the mainframe infrastructure, provision, maintenance, operation and second-level support of the operating system z/OS, including the security, database, automation, monitoring and production and application controlling software used on this operating system platform. .

Your tasks • Your profile • What we offer

Ensuring network operation and protocol management in the operating system z/OS

Administration and fine tuning of key components such as TCP/IP, VTAM (Virtual Telecommunications Access Method) and SNA (System Network Architecture)

Configuration, implementation, maintenance, documentation as well as test and use of changes to the technical components in the respective test and productive systems

Compliance with and implementation of safety standards (e.g. TLS/SSL, Ciphersuites, zSecure) including central control of network policies (AT-TLS, IPSEC etc.)

Analysis of complex disturbances and fault diagnosis using monitoring, trace and security tools and continuous monitoring and optimization of system performance

Development and updating of implementation and operating standards and ensuring their implementation and continuous maintenance in operation

Support and take over the maintenance of zSeries hardware and hardware configuration

Complete subject-related university studies or comparable training

At least 4 years of relevant professional experience in a comparable environment

Very good knowledge of the mainframe architecture and system programming

Experience and safe handling of z/Os, TSO/ISPF, JCL, SMPE and REXX (e.g. for the care of own developments)

Funded knowledge in the IBM Communication Server (z/OS, TCP/IP, SNA, AT-TLS), and encryption methods as well as certificate management in z/Os

Experience in modernising Assembler programs (Metal C, C, C++, Java) or willingness to work into this topic

Expressed analytical competence, readiness to learn and awareness of responsibility

Very good communication capability and high team capability

Willingness to carry out business trips 1x per quarter and regular call readiness

German language skills in word and writing

Through varied and socially relevant tasks, we ensure the smooth operation of IT and the digitization of the Bundeswehr The goal is for us. For us, an appreciative approach and a great team spirit are elementary The remuneration is between € 57,800 and € 84,680. The actual amount is determined based on your responsibility as well as experience and competences The BWI provides a secure workplace and a premised and employee-funded occupational pension scheme You start with 30 days of annual holiday with option for individual adjustment Our Benefit app provides you with a monthly balance and tax relief on tickets for the ÖPNV We allow you flexibility to reconcile work and private life, for example through mobile work or trust work time and the long-term construction of a value credit account for e.g. a sabbatical We support your professional and personal training through individual measures and free access to LinkedIn Learning You have the opportunity to lease a job bike and also profit from access to platforms for diverse employee benefits

Location

ava BWI GmbH
89075  Bonn, Frankfurt, Hamburg, München, Nürnberg, Ulm, Berlin, Leipzig
Germany

The text of this ad was translated from German into English using an automatic translation system and may contain semantic and lexical errors. Therefore, it should be used for introductory purposes only. For more detailed information, see the original text of the ad at the link below.

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