Role Overview:The client is seeking a skilled network engineer specializing in Unified Communications (UC) to design, implement, support, and optimize enterprise voice, video, messaging, and collaboration services. This role will support multiple platforms, including Cisco Unified Communications Manager (CUCM), Cisco Webex, Microsoft Teams, and enterprise calling solutions, working closely with various teams to maintain reliable, secure, and high-quality communication services.
Key Responsibilities:- Design, deploy, configure, and support UC platforms, including CUCM, Cisco Unity Connection, Cisco Webex and Webex Calling, Cisco Session Border Controllers and voice gateways, and Microsoft Teams Phone.
- Support enterprise voice services, including SIP trunks, PSTN connectivity, Direct Routing, Operator Connect, and Cloud calling.
- Configure dial plans, route patterns, calling policies, hunt groups, auto attendants, call queues, voicemail, and number management.
- Administer Microsoft Teams voice features through Teams Admin Center and PowerShell.
- Troubleshoot voice, video, messaging, and collaboration issues across LAN, WAN, internet, and cloud environments.
- Analyze call quality using latency, jitter, packet loss, MOS, QoS, and platform-specific diagnostic tools.
- Configure and maintain network services that support real-time communications, including QoS, VLANs, routing, DNS, DHCP, NAT, and firewall rules.
- Support voice gateways, SIP trunks, SBCs, desk phones, conference-room systems, headsets, and soft clients.
- Manage user provisioning, licensing, migrations, onboarding, and offboarding for calling and collaboration services.
- Monitor platform availability, capacity, performance, and call quality.
- Perform system upgrades, patches, certificate renewals, backup validation, and lifecycle management.
- Coordinate incident response, root-cause analysis, change management, and problem resolution.
- Maintain technical documentation, network diagrams, dial plans, configuration standards, and operational procedures.
- Work with telecommunications carriers and technology vendors to resolve service issues.
- Participate in an on-call rotation and provide support for critical incidents when required.
Required Skills:- At least three (3) years of experience supporting enterprise networking and/or UC environments.
- Strong knowledge of SIP, RTP, SRTP, SDP, TLS, codecs, dial plans, and PSTN technologies.
- Solid understanding of TCP/IP, routing, switching, VLANs, QoS, DNS, DHCP, NAT, VPNs, and firewalls.
- Experience diagnosing voice-quality and connectivity issues using packet captures, call logs, and monitoring tools.
- Familiarity with identity, authentication, certificates, and cloud service integrations.
- Experience administering Microsoft Teams, Teams Phone, Direct Routing, and/or Operator Connect.
- Hands-on experience with Cisco collaboration technologies, including CUCM, Unity Connection, Webex, CUBE, and/or Cisco voice gateways.
Qualifications:- Bachelor's degree (or equivalent professional experience) in Information technology, Networking, Telecommunications, or related field(s).
- Strong analytical, documentation, communication, and incident-management skills.
- 6-8 Years of experience.
Preferred Skills:- Experience migrating from on-premises telephony to cloud calling platform(s), including Microsoft Teams Phone and Webex Calling.
- Knowledge of hybrid Cisco and Microsoft collaboration environments.
- Experience with PowerShell, APIs, Python, and/or other automation tools.
- Familiarity with ITIL practices and enterprise change-management processes.
- Relevant certifications, such as Cisco CCNA, CCNP Enterprise, and/or CCNP Collaboration; Microsoft 365 Certified: Teams Administrator Associate; Microsoft Certified: Teams Voice Engineer Expert (or current equivalent); ITIL Foundation.
