Cisco Network Voice Engineer – LANWAN

Job Title: Cisco Network Voice Engineer LAN/WAN

Location: Woodlands TX

Primary Skill :

• 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.

Job Description:

Key Responsibilities

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.

Required Skills and Experience

Education: Bachelors 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 PowerShell 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 cross-functional teams.

Adaptability: Willingness to learn and adapt to evolving technologies and business requirements.

Preferred Qualifications

CISCO Certified Network Associate (CCNA) Collaboration or Voice

CISCO Certified Network Professional (CCNP) Collaboration or Voice

Experience with cloud collaboration platforms (Webex Calling Microsoft Teams Direct Routing).

ITIL certification or experience in IT service management frameworks.

Experience with multi-vendor voice environments.

Knowledge of regulatory and compliance frameworks relevant to voice communications.

Experience with network automation and orchestration tools Engineer (Onsite)