GDMcom GmbH | Germany | 04xxx Leipzig | Permanent position | Full time / Home office | Published since: 10.08.2026 on stepstone.de
Systems specialist Firewall technology (m/f/d)
GDMcom is an expert in powerful telecommunication solutions and reliable documentation in the energy industry. As a subsidiary of the ONTRAS Gastransport GmbH, we plan, build, maintain and document the technical infrastructure for the supply systems and management networks of our customers – with continuous success, which is always a joint work for us. We therefore offer our employees not only interesting challenges, but also a social work environment, collegiateness and active promotion of their skills. Become part of our team of employees and join us on a successful course. .
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Your tasks • Your profile • What we offer
Operation and maintenance of highly available firewall clusters Configuration of firewall policies, VPNs (IPSec, SSL VPN), NAT and routing Ensuring security of our security infrastructure Implementation of firmware updates and lifecycle management Analysis of Logs and Security Events Troubleshooting for network and security issues Monitoring network security with modern monitoring tools Analysis of safety incidents and initiation of appropriate countermeasures Documentation of Incidents and Measures Technical assessment and monitoring of existing service contracts with customers and service providers in the field of tasks Coordination of service providers and support of employees in technical execution Implementation of technical training Participation in professional skills
Must have: Complete training or studies in the field of IT, computer science or comparable Professional experience in IT security or network administration Knowledge in Layer 3 technologies Good knowledge of network technologies (TCP/IP, routing, VPN) Analytical thinking skills as well as structured working and high sense of responsibility Teamability and Communication Strength readiness to review under the Security Audit Act Nice to have: Knowledge in Layer 2 technologies and cable technology
Regular full time is a 38-hour week with flexible work design through sliding time 30 days vacation plus paid allowances for 24.12. and 31.12. Family friendly: profession and family certified and use of the PME family service Remuneration by house rate (4.153EUR–4.845EUR) at 12.5 gross salaries in the calendar year Possibility of mobile work Individual continuing and continuing training Grants for: Lunch, kindergarten, monthly tickets of the ÖPNV In the case of sickness days of children, cardiac days and sickness allowance
Location
 | GDMcom GmbH | |
| 04178 Leipzig | ||
| Germany |
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