Sr Network Voice Engineer

3M HEALTHCARE; Lone Tree (CO); Hybrid; USD 124,771 - 171,560; Full time

Benefits offered by this job

Medical, dental and vision plans

401(k) with match

Life insurance

Paid time off 3 weeks

Tuition reimbursement

Job summary

SNC is seeking a Senior Network Voice Engineer to lead the design, deployment, and optimization of hybrid voice and network infrastructure across our enterprise. You will guide VoIP, UC, and core network implementations, manage call routing and security, and provide Tier-4 escalation support to ensure performance and compliance.

The ideal candidate has deep expertise in CUCM, CUBE, Unity/UCCX, Teams Phone, and SBCs, with a proven history of delivering robust, scalable voice solutions in complex

Qualifications

• Bachelor's degree or higher; extensive relevant experience accepted in lieu of degree.
• 8+ years in network/voice engineering.
• Expert know‑how of TCP/IP, DNS, DHCP and VoIP protocols.
• Strong Cisco collaboration tech experience (CUCM, Unity, CUBE, UCCX).
• Experience with Teams Phone, Direct Routing, and Operator Connect.

Responsibilities

• Lead design, architecture, and strategic direction of hybrid voice and network infra.
• Oversee VoIP, UC, and core network system implementations and maintenance.
• Manage call routing, dial plans, SBCs, gateways, firewalls, VPNs, IDS/IPS.
• Ensure high availability, security, and regulatory compliance across voice services.
• Provide Tier‑4 support for voice/network incidents and requests.
• Mentor engineers and drive adoption of new tools and best practices.

Skills

VoIP expertise

SIP/RTP

QoS

SBCs & Gateways

CUCM & CUBE

Unity/UCCX

Microsoft Teams Phone

Direct Routing

PSTN connectivity

Network security

Education

Bachelor's degree

Tools

Cisco IOS

Packet capture tools

SD‑WAN

Job description

Senior Network Voice Engineer

Do you have a keen eye for detail and a passion for building innovative solutions? Join our team as a Senior Network Voice Engineer. In this role, you’ll lead the strategic planning, design, and implementation of complex network and voice systems while ensuring the integrity and security of our infrastructure. You will serve as a subject matter expert and advisor on all voice‑related matters, bringing deep engineering expertise and strong leadership to our organization.

Responsibilities

• Lead the design, architecture, and strategic direction of the organization’s hybrid enterprise voice and network infrastructure.
• Oversee implementation, configuration, and maintenance of VoIP, call center, unified communications, and core network systems.
• Manage and optimize call routing, dial plans, SBCs, gateways, firewalls, VPNs, IDS/IPS, and related infrastructure.
• Ensure high availability, performance, security, and compliance across all voice and network services.
• Diagnose and resolve complex issues involving voice technologies, network hardware/software, connectivity, and security.
• Provide tier‑4 escalation support for voice and network incidents and service requests.
• Drive technology upgrades, migrations, integrations, and adoption of new tools and best practices across the engineering organization.
• Analyze system and network performance, traffic patterns, capacity metrics, and call quality to identify and implement improvements.
• Develop and maintain standards, documentation, configurations, and operational procedures for voice and network systems.
• Collaborate with executive leadership, network/security/application teams, and external vendors to ensure technical initiatives align with business goals.
• Coordinate and deliver successful project execution across cross‑functional teams.
• Generate and present reports on system and network performance, incidents, and trends.
• Provide mentorship, guidance, and training to network engineers, junior staff, and broader IT teams.
• Stay current with emerging technologies, industry standards, and best practices in both voice and network engineering.
• Recommend, design, and implement enhancements to infrastructure, processes, and operational workflows.
• Participate in rotational on‑call responsibilities (no more than one week per month).

Qualifications (You Must Have)

• Bachelor’s degree in a related field.
• 8+ years of experience in a related field.
• Relevant experience can be considered as a substitute for the required educational qualifications.
• In the absence of a degree, a minimum of 10 years of related experience is required.
• Higher level relevant degree may substitute for experience.
• Expert knowledge of network protocols and services such as TCP/IP, DNS, DHCP.
• Extensive experience with Cisco networking equipment.
• Experience supporting a corporate network, maintaining Service Level Agreements (SLAs), providing support to corporate IT departments.
• Experience design & manage network implementation projects in a dynamic fast‑paced environment.
• Deep expertise with VoIP, SIP, RTP, QoS, SBCs, gateways, and hybrid call‑routing architectures.
• Strong hands‑on knowledge of CUCM, CUBE, Unity, UCCX, and related Cisco collaboration technologies.
• Proven experience deploying and administering Microsoft Teams Phone, including Calling Plans, Direct Routing, and Operator Connect.
• Skilled in designing and maintaining dial plans, number inventory, and PSTN connectivity across both Cisco and Teams.
• Solid understanding of networking fundamentals as they relate to voice: TCP/IP, VLANs, DHCP, DNS, routing, switching, packet capture tools.
• Experience with Session Border Controllers (AudioCodes, Ribbon, or Cisco CUBE) in hybrid deployments.

Qualifications (We Prefer)

• Preferred certifications: CCNP Collaboration, Microsoft Teams Voice, CCNP, or CCIE.
• Expertise in Multiprotocol Label Switching (MPLS) WAN and Software‑Defined Wide Area Network (SD‑WAN) technologies.
• Strong background in network security and compliance.
• Proven experience in managing and leading network projects.
• Hands‑on expertise and experience with a wide variety of network related tools, concepts, technologies, best practices and security procedures.
• Experience with network hardware, protocols, and media including but not limited to Fiber Optics, UTP, IOS, SD‑WAN, DNS, DHCP, wireless.
• Hands‑on experience with network automation platforms.
• Hands‑on experience with zero‑trust networking.

Essential Functions

• Must be able to lift 25 lbs regularly.
• Work primarily at a computer for extended periods.
• Frequent use of hand/finger dexterity for computer work.
• Ability to work in an office or hybrid environment.
• Occasional travel may be required.
• Ability to participate in afterhours on‑call duties.

Estimated Starting Salary Range: $124,771.42 - $171,560.71. Compensation varies depending on a wide array of factors, such as candidates' key skills, relevant work experience, and education/training/certifications. The disclosed range estimate may be adjusted for any applicable geographic differential associated with the location at which the position may be filled.

SNC offers annual incentive pay based upon performance that is commensurate with the level of the position. SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more.

This position requires the ability to obtain and maintain a Secret U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non‑U.S. citizens may not be eligible to obtain a security clearance.

SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission‑focused, thrive in collaborative environments, and want to make our country stronger with state‑of‑the‑art technologies that safeguard freedom, join our team!

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law.