Global Cisco UC Upgrade Engineer (CUCM/UCCX/CUC)

SCALIS; Northern (KY); Hybrid; USD 90,000 - 120,000; Full time

Job summary

SCALIS is seeking an experienced Cisco UC Voice Engineer to lead upgrades across CUCM, UCCX, and Unity Connection, including VMware ESXi infrastructure. You will coordinate with global teams to execute upgrade windows with minimal business impact and provide post-upgrade stabilization.

The role focuses on high-impact upgrade projects in a global environment, emphasizing stability, security, and change management practices. Strong communication skills are essential.

Qualifications

• Proven, hands-on experience upgrading CUCM, UCCX, and CUC environments.
• Experience upgrading VMware ESXi from 6.5/7.0 to 8.0.
• CCNA certification is required or preferred.
• CCNP Collaboration (or equivalent hands-on experience) is a plus.
• Familiarity with ITIL or structured change management practices is preferred.

Responsibilities

• Perform upgrades of CUCM, UCCX, and CUC from version 12.5 to 15.4.
• Execute VMware ESXi upgrades from 6.5/7.0 to 8.0.
• Complete all pre-upgrade activities, including change submissions and approvals.
• Detailed implementation and rollback planning.
• Coordinate with global teams to plan upgrade windows with minimal business impact.
• Troubleshoot and resolve issues during and after upgrade activities.
• Ensure compliance with company standards, security policies, and best practices.
• Provide post-upgrade stabilization and hypercare support.

Skills

CUCM/UCCX/UC upgrades

VMware ESXi upgrades

CCNA certification

CCNP Collaboration

ITIL familiarity

Global/enterprise-scale experience

Job description

SCALIS is seeking an experienced Cisco UC Voice Engineer to lead upgrades across CUCM, UCCX, and Unity Connection, including VMware ESXi infrastructure. You will coordinate with global teams to execute upgrade windows with minimal business impact and provide post-upgrade stabilization.

The role focuses on high-impact upgrade projects in a global environment, emphasizing stability, security, and change management practices. Strong communication skills are essential.