About this job

Job title – Cisco UC System & Infrastructure Administrator

Client Location – Ottobrunn, Germany

Contract type – Freelance

Project focus

You’ll own the technical foundation behind a new Cisco Unified Communications estate: the virtual hosting layer, the Windows and Linux servers that support it, network services and integration with corporate security tooling. You’ll build out new UC infrastructure, administer CUCM and Unity Connection at system level, help tidy up the existing estate and hand over to the operations team with full runbooks and L2/L3 support through go-live.

Key skills and Experience required

• 5+ years in system and infrastructure administration, with hands-on operational or deployment experience on Cisco UC
• CUCM and Unity Connection system administration: OVA installs, OS Admin CLI, certificates, DRS backups, COP files and upgrades, RTMT and logs
• VMware vSphere / ESXi / vCenter and Cisco UCS: HA/DRS, anti-affinity, reserved resources, storage and Cisco Collaboration HCL
• Windows Server: AD DS / AD-LDS, LDAP(S), GPO, PKI, IIS, PowerShell and MECM
• Linux (RHEL / Debian): SFTP/SSH, hardening, Shell or Python scripting
• Networking for voice: DNS, DHCP, NTP, VLANs, Voice QoS (DSCP), SIP/RTP, firewall flow requests
• Integrating platforms with security services: PKI/TLS, SIEM/syslog, EDR, patching and vulnerability management
• Monitoring and ITSM: Prognosis or SNMP-based tooling, CMDB, ITIL incident and change
• Experience migrating VMs between hosting platforms; data centre relocation or carve-out experience a plus
• Willing to cover on-call and out-of-hours work
• Basic CUBE / IOS-XE and Imagicle knowledge useful
• Fluent English