Voice Network Engineer II

Sierra Nevada Corporation; Beavercreek (OH); On-site; USD 82,000 - 113,000; Full time

Benefits offered by this job

Medical insurance

Dental plan

Vision plan

401(k) with 150% match

Paid time off

Job summary

Sierra Nevada Corporation is seeking a Voice Network Engineer II to enhance expertise in managing and troubleshooting complex network systems. You will take on greater responsibility for implementing network solutions, addressing escalated issues, and ensuring robust security protocols.

Join SNC’s corporate team delivering strategic direction and business support across IT, security, and operations. This role requires collaboration with senior engineers and stakeholders to meet networking needs.

Qualifications

• Bachelor’s degree in a related field is required.
• 2+ years of related experience required; 6+ years acceptable if no degree.
• Experience with voice systems such as CUCM and MS Teams, SIP trunks, and SBCs is required.
• Strong knowledge of TCP/IP, DNS, DHCP and network protocols.
• Proficiency with switching equipment and wireless/VPN implementations.
• Experience in enterprise networks with SLAs and IT support.
• Security best practices and change-control procedures are essential.

Responsibilities

• Monitor, maintain, and support enterprise network infrastructure including LAN, WAN, WLAN, SD-WAN, and data centers.
• Provide advanced support for voice systems (IP telephony, call routing, SBC administration, VoIP troubleshooting).
• Configure and maintain routers, switches, firewalls, load balancers, and related tech.
• Troubleshoot complex network and voice issues with root-cause analysis and long-term fixes.
• Participate in on-call rotation and respond to escalated incidents.
• Collaborate with carriers, vendors, and internal teams to resolve issues and upgrades.
• Assist in network/voice projects including deployments, migrations, modernization.
• Ensure security standards compliance and change-control adherence.
• Maintain network diagrams and documentation; suggest improvements for performance and reliability.
• Ensure SLAs and corporate IT support alignment.

Skills

Network troubleshooting

VoIP expertise

CUCM / SIP

Security best practices

Root cause analysis

On-call support

Vendor coordination

Documentation

TCP/IP DNS DHCP

Education

Bachelor’s degree

Experience substituted for degree

Tools

CUCM

MS Teams

SBCs

Firewall basics

Python scripting

SD-WAN

VPN technologies

Cloud voice (Teams)

Job description

Higher level relevant degree may substitute for experience.

Do you have an eye for detail and a passion for developing innovation solutions?

As a Voice Network Engineer II, you will enhance your expertise in managing and troubleshooting complex network systems. Your role will involve greater responsibility for implementing network solutions, handling escalated issues, and ensuring robust security protocols. You will work closely with senior engineers and other stakeholders to support the organization’s networking needs.

As SNC's corporate team, we provide the company and its business areas with strategic direction and business support spanning executive management, finance and accounting, operations, human resources, legal, IT, information security, facilities, marketing, and communications.

Responsibilities

• Monitor, maintain, and support enterprise network infrastructure, including LAN, WAN, WLAN, SD‑WAN, and data center networking.
• Provide advanced support for voice systems, including IP telephony, call routing, SBC administration, and VoIP troubleshooting.
• Configure and maintain routers, switches, firewalls, load balancers, and related technologies
• Troubleshoot complex network and voice issues; perform root‑cause analysis and implement long‑term fixes.
• Participate in on‑call rotation and respond to escalated incidents.
• Work with carriers, vendors, and internal teams to resolve service issues and manage upgrades.
• Assist in network and voice infrastructure projects, including new deployments, migrations, and system modernization.
• Ensure compliance with security standards, best practices, and change‑control procedures.
• Maintain accurate documentation of network diagrams, configurations, and support procedures.
• Recommend improvements to performance, scalability, and reliability of network/voice services.

Qualifications You Must Have

• Bachelor’s degree in a related field.
• 2+ 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 6 years of related experience is required.
• Higher level relevant degree may substitute for experience.
• Practical experience with voice systems such as: – Cisco Unified Communications Manager (CUCM) and MS Teams – SIP trunking and Session Border Controllers – VoIP QoS, RTP/RTCP, call flow analysis
• A deep understanding of network protocols and services [e.g., Transmission Control Protocol/Internet Protocol (TCP/IP), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP)].
• Proficiency with networking switching equipment and systems.
• Proficiency with wireless and VPN implementations.
• Familiarity with AI in troubleshooting network issues.
• Strong experience with networking equipment.
• Experience supporting a corporate network, maintaining Service Level Agreements (SLAs), providing support to corporate IT departments.
• Basic understanding of firewall principles and maintenance.

Qualifications We Prefer

• CCNA, CCNP, or equivalent certification.
• Experience with cloud voice solutions (Teams Phone, Webex, etc.).
• Knowledge of SD‑WAN technologies.
• Experience with network automation or scripting (Python, Ansible).
• Experience in high‑availability or multi‑site environments.

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.
• Occasional travel may be required.

This posting will be open for application for a minimum of 5 days and may be extended based on business needs.

Estimated Starting Salary Range: $82,039.23 - $112,803.95. 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 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.

Important Notice

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. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Learn more about the background check process for Security Clearances.

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.

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.