onsite
IT System Engineer - z/OS Network & Security - Akkodis Germany Tech Experts GmbH
Systems Engineer
Senior IT System Engineer responsible for managing and securing z/OS network infrastructure, ensuring high availability, compliance, and optimal performance across mainframe environments.
About the role
Key Responsibilities
- Design, implement, and maintain secure z/OS network architecture, including firewalls, VPNs, and routing protocols.
- Monitor network performance, troubleshoot connectivity issues, and apply performance tuning to meet SLA requirements.
- Collaborate with security teams to enforce policies, conduct vulnerability assessments, and implement remediation plans.
- Document network configurations, change management procedures, and incident response workflows.
- Provide 24/7 on-call support for critical network incidents and coordinate with cross‑functional teams for rapid resolution.
Requirements
- 5+ years of experience in mainframe (z/OS) network administration and security.
- Strong knowledge of network protocols (TCP/IP, IPsec, MPLS) and security technologies (firewalls, IDS/IPS, VPN).
- Hands‑on experience with mainframe security tools (e.g., RACF, CA Identity Manager).
- Proficiency in scripting (Bash, Python) for automation and monitoring.
- Excellent problem‑solving skills and ability to work independently in a high‑pressure environment.