Network Engineer

• Oversee the daily operation and ongoing improvement of Cisco network infrastructure, including switching, routing, VLAN segmentation, spanning tree, and access layer connectivity.
• Configure and support enterprise voice platforms by administering Cisco Unified Communications systems, call routing components, and related telephony services.
• Maintain cloud-based collaboration tools such as Webex and Microsoft Teams, including account setup, dial plan coordination, and interoperability with on-premises environments.
• Administer emergency calling solutions and verify that voice services align with applicable E911 requirements across company locations.
• Develop, document, and carry out disaster recovery and failover exercises for network and voice platforms, capturing outcomes and validating recovery readiness.
• Apply and tune quality of service settings to preserve call clarity and prioritize real-time traffic throughout the communications environment.
• Investigate and resolve call quality problems, service interruptions, and network-related voice issues using a disciplined troubleshooting approach.
• Support structured change management processes by preparing documentation, implementing approved updates, and completing post-change review activities.
• Partner with security, compliance, vendors, and cross-functional technology teams to ensure infrastructure meets operational standards and regulatory expectations.

• Keep technical records current, including network diagrams, voice configurations, dial plans, and support procedures. Requirements - At least 5 years of practical experience in network engineering with strong hands-on work in Cisco routing and switching environments.
• At least 3 years of experience supporting enterprise voice, unified communications, or collaboration technologies, ideally within Cisco-based platforms.
• Advanced knowledge of Cisco Unified Communications Manager, including administration, dial plan management, device configuration, calling search spaces, and upgrades.
• Proven experience with Cisco voice gateway and trunking configuration, including dial peer design, codec considerations, and carrier connectivity.
• Familiarity with Webex Cloud services, such as Webex Calling or Webex Meetings, with exposure to hybrid or cloud deployment models preferred.
• Working understanding of E911 concepts and compliance obligations related to enterprise telephony.
• Experience planning and executing disaster recovery or failover testing for voice systems, with strong documentation practices.
• Solid grasp of QoS methods for voice traffic, including packet marking, shaping, and queuing, along with awareness of security and compliance standards affecting network infrastructure. Technology Doesn’t Change the World, People Do., All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

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