Unified Communications Engineer

Our client is a global industrial technology leader with over 20,000+ employees across 57+ countries, currently delivering one of Germany's largest Unified Communications transformation programmes.

As part of a major global initiative, they're migrating a large-scale Cisco telephony environment to Microsoft Teams Phone, creating an exciting opportunity for an experienced Unified Communications Engineer to join their specialist infrastructure team.

This is not a support or Microsoft 365 administration role. You'll be responsible for engineering, operating and modernising a global enterprise communications platform used by approximately 14,000 users worldwide.

What You'll Be Doing

• Administer and operate Cisco Unified Communications Manager (CUCM)
• Manage Microsoft Teams Phone within a large enterprise environment
• Maintain enterprise voice infrastructure and SIP connectivity
• Troubleshoot complex Level 3 technical issues
• Perform upgrades, configuration changes and platform improvements
• Support the global migration from Cisco to Microsoft Teams Phone
• Deliver technical projects including Contact Centre and telephony integrations
• Work with vendors and internal stakeholders on international rollout programmes

What We're Looking For

Essential Skills

• 2–5+ years' experience with Cisco Unified Communications Manager (CUCM)
• Experience administering Microsoft Teams Phone
• Strong understanding of SIP, H.323 and enterprise telephony
• PowerShell knowledge
• Experience supporting enterprise infrastructure environments
• Native-level German (essential)
• Fluent English (essential)

Nice to Have

• Teams Direct Routing
• Operator Connect
• Contact Centre platforms
• Voice Gateways
• Azure / Entra ID
• Cloud communications

Who This Role Suits

This opportunity is ideal for an infrastructure-focused Unified Communications Engineer who enjoys working on large enterprise platforms and long-term transformation programmes.

It's not suited to candidates whose experience is limited to Microsoft Teams administration, Microsoft 365 support or Service Desk roles.

Why Join?

• One of Germany's largest Cisco to Microsoft Teams Phone migration programmes
• Work with enterprise-scale communications infrastructure supporting 14,000+ users
• Long-term transformation projects with genuine technical ownership
• Financially stable, international organisation with excellent career prospects
• Hybrid working with flexible hours
• Outstanding training and development opportunities

Package

• Up to €97,000 base salary
• 15% annual bonus
• Total package up to approximately €110,000
• Hybrid working
• Excellent pension
• Flexible working hours
• Extensive learning and development
• Additional corporate benefits

Location: Karlsruhe (Hybrid)