Sr Collaboration Engineer

Mindtel; Dubai; On-site; AED 180,000 - 300,000; Full time

Job summary

Mindtel is seeking a Senior Collaboration & Security Engineer to design, implement and maintain Cisco collaboration solutions across CUCM, Webex, Unity, and Expressway. You will configure dial plans, SIP trunks, and endpoints while ensuring secure voice and video traffic and firewall segmentation.

The role requires strong troubleshooting, documentation, and on-call availability, with 5–7 years of hands-on Cisco experience and relevant certifications.

Qualifications

• Minimum 5–7 years hands-on experience with Cisco Collaboration and Security technologies.
• Relevant certifications preferred: CCIE Collaboration, CCNP Security, Cisco Webex Calling Specialization.
• Strong analytical, troubleshooting and documentation skills; able to work under pressure.

Responsibilities

• Design, implement and maintain Cisco Collaboration solutions (CUCM, Webex, Unity, IM&P, Expressway, UCCX, voice gateways).
• Configure and manage dial plans, SIP trunks, route patterns, number translations and calling search spaces.
• Support and troubleshoot Cisco endpoints (IP Phones, ATA, Webex devices).
• Integrate PSTN connectivity via gateways, Cloud Connect or SIP trunks.
• Perform upgrades, migrations (on-prem to cloud) and system expansions.
• Monitor and resolve call quality, latency, jitter, packet loss and media performance.

Skills

Cisco collaboration

Security engineering

Troubleshooting

Documentation

On-call support

Scripting Bash/Python

System administration

Monitoring tools

Education

CCIE Collaboration

CCNP Security

Cisco Webex Calling Specialization

Tools

CUCM

Webex Unity

Expressway

UCCX

CSPs/Voice gateways

Job description

Job Summary (List Format) Senior Collaboration & Security Engineer

• - Design implement and maintain Cisco Collaboration solutions (CUCM Webex Unity IM&P Expressway UCCX voice gateways etc.).
• - Configure and manage dial plans SIP trunks route patterns number translations and calling search spaces.
• - Support and troubleshoot Cisco endpoints including IP Phones ATA and Webex devices.
• - Integrate PSTN connectivity via local gateways cloud connect or SIP trunks.
• - Perform upgrades migrations (on-prem to cloud) and system expansions for collaboration systems.
• - Monitor and resolve issues related to call quality latency jitter packet loss and media performance.
• - Implement and manage Cisco security solutions (Firepower ASA Fortigate SecureX Umbrella ISE Duo).
• - Ensure secure collaboration by encrypting voice traffic (SRTP) configuring SIP TLS and securing SIP trunks and WebRTC.
• - Configure firewalls NAT ACLs and segmentation for voice/video traffic security.
• - Monitor threats and respond to security incidents impacting collaboration services.
• - Utilize technical expertise in voice protocols (SIP H.323 SRTP) networking (routing switching QoS VLANs) and system administration (VMware Windows/Linux).
• - Leverage monitoring tools (RTMT Wireshark SolarWinds) for proactive system management.
• - Preferred scripting skills (Bash/Python) for automation and troubleshooting.
• - Maintain documentation and provide effective communication with stakeholders.
• - Provide on-call support and work in shifts as required.
• - Minimum 5 7 years of hands-on experience with Cisco Collaboration and Security technologies.
• - Relevant certifications preferred: CCIE Collaboration CCNP Security Cisco Webex Calling Specialization.
• - Strong analytical troubleshooting and documentation skills; able to work under pressure.