Sira Consulting, an Inc 5000 company · 2 hours ago
Voice Network Engineer
The Woodlands, TX
Contract
Onsite
Senior Level
5+ years expSira Consulting, an Inc 5000 company, is seeking a Voice Network Engineer to architect and implement Cisco Unified Communications solutions. The role involves advanced troubleshooting, performance optimization, and maintaining security standards for voice infrastructure while mentoring junior engineers and managing vendor relationships.
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Hiring Manager
Swapnil Sagar
Responsibilities
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
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
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
Oversee integration of Cisco voice solutions with third-party PBXs, SIP trunks, PSTN gateways, and cloud-based services such as Webex or Microsoft Teams
Continuously monitor, analyze, and improve the performance and reliability of voice and collaboration networks
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)
Create and maintain comprehensive technical documentation, including network diagrams, configuration guides, and operational procedures
Plan and execute voice network upgrades, migrations, and new feature deployments; coordinate with project stakeholders, vendors, and cross-functional teams
Provide guidance and training for junior engineers, supporting professional development and knowledge transfer within the team
Liaise with Cisco TAC (Technical Assistance Center) and other vendors for issue resolution, software updates, and best practices
Assess current and future voice network requirements, recommend capacity upgrades, and participate in budgeting processes
Participate in and lead change control processes, ensuring risk assessment, documentation, and rollback planning are rigorously followed
Drive continuous service improvement initiatives, identify automation opportunities, and contribute to operational excellence
Qualification
Required
Bachelor's degree in Computer Science, Information Technology, Electronics or related field (or equivalent experience)
Cisco Certified Network Professional – Collaboration (CCNP Collaboration) required; Cisco Certified Internetwork Expert – Collaboration (CCIE Collaboration) preferred
Minimum 5+ years of hands-on experience in Cisco voice and unified communications engineering, design, and support in large enterprise environments
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
Demonstrated ability to analyze, troubleshoot, and resolve complex voice and UC issues quickly and efficiently
Excellent verbal and written communication skills; ability to interact with stakeholders at all organizational levels
Capable of managing multiple projects and priorities simultaneously under tight deadlines
Collaborative mindset, with experience working in global or cross-functional teams
Willingness to learn and adapt to evolving technologies and business requirements
Preferred
Cisco Certified Internetwork Expert – Collaboration (CCIE Collaboration)
Experience in scripting or automation (Python, PowerShell, APIs) is a plus
Company
Sira Consulting, an Inc 5000 company
SiRA Consulting is a Certified MBE consulting company that was founded in 2012.
201-500 employees
H1B Sponsorship
Sira Consulting, an Inc 5000 company has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (14)
2024 (50)
2023 (42)
2022 (63)
2021 (86)
2020 (70)
Funding
Current Stage
Growth StageCompany data provided by crunchbase