Voice Network Engineer

Overview

Job Description:

Cisco Network Voice L3 Engineer

• Solution Design and Architecture:
  Architect and design end-to-end Cisco Unified Communications solutions, incorporating voice, video, and data; ensure scalability, security, and compliance with best practices and business requirements.
• Implementation and Deployment:
  Lead the roll-out of Cisco voice solutions, including Cisco Unified Communications Manager (CUCM), Cisco Unity Connection, Cisco IM & Presence, Cisco Expressway, and Contact Center solutions.
• Advanced Troubleshooting:
  Serve as the top-tier (Level
  3) escalation point for complex voice and UC issues; diagnose and resolve critical incidents, root cause analysis, and provide sustainable corrective actions.
• Integration:
  Oversee integration of Cisco voice solutions with third-party PBXs, SIP trunks, PSTN gateways, and cloud-based services such as Webex or Microsoft Teams.
• Performance Optimization:
  Continuously monitor, analyze, and improve the performance and reliability of voice and collaboration networks.
• Security and Compliance:
  Implement and maintain security standards for voice infrastructure, including encryption protocols, secure voice gateways, and compliance with organizational and regulatory requirements (e.g., GDPR, HIPAA).
• Documentation:
  Create and maintain comprehensive technical documentation, including network diagrams, configuration guides, and operational procedures.
• Project Management:
  Plan and execute voice network upgrades, migrations, and new feature deployments; coordinate with project stakeholders, vendors, and cross-functional teams.
• Mentoring and Training:
  Provide guidance and training for junior engineers, supporting professional development and knowledge transfer within the team.
• Vendor Management:
  Liaise with Cisco TAC (Technical Assistance Center) and other vendors for issue resolution, software updates, and best practices.
• Capacity Planning:
  Assess current and future voice network requirements, recommend capacity upgrades, and participate in budgeting processes.
• Change Management:
  Participate in and lead change control processes, ensuring risk assessment, documentation, and rollback planning are rigorously followed.
• Service Improvement:
  Drive continuous service improvement initiatives, identify automation opportunities, and contribute to operational excellence.

• Education:
  
  Bachelor’s degree in Computer Science, Information Technology, Electronics or related field (or equivalent experience).
• Certifications:
  
  Cisco Certified Network Professional – Collaboration (CCNP Collaboration) required;
  Cisco Certified Internetwork Expert – Collaboration (CCIE Collaboration) preferred.
• Experience:
  
  Minimum 5+ years of hands-on experience in Cisco voice and unified communications engineering, design, and support in large enterprise environments.
• Technical Proficiency:
  Expert knowledge of Cisco Unified Communications Manager (CUCM), Unity Connection, IM & Presence, Expressway, UCCX/UCCE, and Jabber/Webex.
• Deep understanding of voice protocols (SIP, H.323, MGCP, SCCP), QoS, dial plans, call routing, and numbering plans.
• Strong experience with Cisco gateways (ISR, CUBE), voice gateways (VG2XX/3XX), and integration with PSTN and SIP providers.
• Proficiency with network protocols (TCP/IP, UDP, DNS, DHCP, VLANs, WAN, MPLS) as they pertain to voice networks.
• Hands-on experience with network management and monitoring tools.
• Familiarity with virtualization platforms (VMware, Hyper-V) and deployment of virtualized UC applications.
• Understanding of security practices for voice and collaborative environments, including SRTP, TLS, and secure call recording.
• Experience in scripting or automation (Python, Power Shell, APIs) is a plus.
• Problem Solving:
  Demonstrated ability to analyze, troubleshoot, and resolve complex voice and UC issues quickly and efficiently.
• Communication:
  Excellent verbal and written communication skills; ability to interact with stakeholders at all organizational levels.
• Project Management:
  Capable of managing multiple projects and priorities simultaneously under tight deadlines.
• Teamwork:
  Collaborative mindset, with experience working in global or…