CDW Corporation

Senior Network Voice Engineer - TS/SCI Clearance

CDW Corporation$180K — $240K *
Telecommunications & Hardware
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Active TS/SCI clearance required
  • U.S. citizenship required
  • Hands-on experience in federal network and voice infrastructure
  • Experience with VoIP services and telephony configurations
  • Strong understanding of core networking principles
  • Experience with Cisco voice technologies
  • Excellent troubleshooting skills for voice/data issues
  • Strong customer service and communication skills

Responsibilities

  • Perform moves, adds, changes, deletions for voice equipment and services
  • Install, configure, and troubleshoot voice devices and systems
  • Support daily voice operations and user requests
  • Diagnose and resolve voice quality and connectivity issues
  • Support core network engineering tasks and maintain QoS policies
  • Coordinate with external vendors and stakeholders on telephony issues
  • Create and maintain documentation for voice infrastructure

Benefits

  • Comprehensive health, dental, and vision coverage
  • 401(k) retirement plan with company match
  • Flexible work hours and remote work options
  • Professional development and training opportunities
  • Employee assistance program and wellness programs
Full Job Description
The Senior Network / Voice Engineer will support enterprise network and voice communications infrastructure within a secure federal environment. This role requires an active TS/SCI clearance and is ideal for a candidate with a strong foundation in core network engineering who also has hands-on experience supporting voice systems, VoIP platforms, unified communications services, and voice equipment moves, adds, and changes. The position will focus on reliable day-to-day operations, technical troubleshooting, equipment configuration, user support, documentation, and coordination with network, telecom, cybersecurity, and mission stakeholders.
Key Responsibilities
  • Perform moves, adds, changes, and deletions for voice equipment, user extensions, voicemail accounts, phones, call routing, hunt groups, shared lines, and related telephony services.
  • Install, configure, maintain, and troubleshoot IP phones, analog voice devices, voice gateways, call managers, session border controllers, voicemail systems, and unified communications components.
  • Support day-to-day voice operations, including provisioning, incident response, ticket resolution, user support, endpoint replacement, and coordination of voice service requests.
  • Troubleshoot voice quality and connectivity issues, including one-way audio, dropped calls, registration failures, latency, jitter, packet loss, codec mismatch, dial-plan issues, and PSTN/SIP trunk problems.
  • Support core network engineering tasks, including LAN/WAN connectivity, VLANs, routing, switching, firewall coordination, QoS, network segmentation, and secure network access.
  • Implement and maintain QoS policies to prioritize voice traffic across LAN, WAN, and wireless environments.
  • Coordinate with carriers, vendors, government customers, and internal technical teams to support circuit issues, number assignments, porting activity, trunk configuration, and service restoration.
  • Create and maintain accurate documentation for voice infrastructure, phone inventories, extension assignments, dial plans, call flows, topology diagrams, standard operating procedures, and change records.
  • Plan and execute approved network and voice changes through established change management processes while minimizing risk to mission operations.
  • Support cybersecurity and compliance requirements by maintaining secure configurations, assisting with vulnerability remediation, supporting audit requests, and following federal security standards and operational procedures.
  • Provide technical guidance to junior technicians or support staff for voice endpoint configuration, troubleshooting steps, and escalation procedures.
Required Qualifications
  • Active TS/SCI clearance required.
  • U.S. citizenship required due to federal security requirements.
  • Hands-on experience supporting enterprise network and voice infrastructure in federal, defense, intelligence, or similarly secure environments.
  • Experience performing voice moves, adds, changes, and deletions for IP phones, extensions, voicemail, call routing, hunt groups, shared lines, and related telephony services.
  • Working knowledge of VoIP technologies, SIP, RTP, QoS, dial plans, gateways, trunks, voicemail systems, and unified communications platforms.
  • Strong understanding of core networking concepts, including TCP/IP, subnetting, VLANs, routing, switching, LAN/WAN connectivity, network segmentation, and troubleshooting.
  • Experience supporting Cisco or comparable network and voice technologies, such as Cisco Unified Communications Manager, Unity Connection, voice gateways, IP phones, CUBE/SBCs, routers, and switches.
  • Ability to troubleshoot voice and network issues using logs, packet captures, monitoring tools, call traces, command-line diagnostics, and vendor support resources.
  • Familiarity with secure configuration management, change control, incident management, vulnerability remediation, and documentation requirements in a federal environment.
  • Strong customer service and communication skills with the ability to support end users, brief technical issues, and coordinate effectively with engineering teams and government stakeholders.
Preferred Qualifications
  • Bachelor's degree in Computer Science, Information Technology, Telecommunications, Cybersecurity, Engineering, or a related technical discipline; additional relevant experience may be considered in lieu of a degree.
  • DoD 8570/8140 IAT Level II certification, such as Security+ CE, or ability to obtain within program requirements.
  • Networking or collaboration certification such as CCNA, CCNP, CCNA Collaboration, CCNP Collaboration, or equivalent experience.
  • Experience with Cisco Unified Communications Manager, Cisco Unity Connection, Cisco Emergency Responder, Cisco Jabber/Webex, Microsoft Teams Phone, Avaya, or other enterprise voice platforms.
  • Experience with SIP trunks, PRI circuits, E911 requirements, analog gateways, paging systems, conference bridges, call recording, or contact center integrations.
  • Experience supporting classified voice environments, multi-site telephony deployments, secure facilities, and mission-critical operational support.
  • Familiarity with network monitoring, voice monitoring, and diagnostic tools such as RTMT, Wireshark, SolarWinds, Splunk, SNMP, SYSLOG, NetFlow, or comparable platforms.

Pay range: $180,000 - $240,000 depending on experience and skill set.
Benefits overview: CDW Benefits
Salary ranges may be subject to geographic differentials.

About CDW Corporation

CDW is a provider of IT solutions for business, government, education, and healthcare. It features dedicated account managers who help customers choose the right technology products and services to meet their needs. The company’s solution architects offer expertise in designing customized solutions, while its advanced technology engineers assist customers with the implementation and long-term management of those solutions. Headquartered in Vernon Hills, Illinois, With a balanced portfolio of 250,000 small-, medium- and large-sized customers, CDW generated net sales of $10.1 billion in 2012, and employs more than 6,800 coworkers in 25 locations across the U.S. and Canada. Founded in 1984 by entrepreneur Michael Krasny, CDW pioneered the business model that melds personalized business-to-business technology distribution with advanced technology services. Today, CDW is ranked No. 31 on Forbes’ list of America’s Largest Private Companies and No. 267 on the FORTUNE 500 list of America’s top companies.

CDW Corporation Careers

Join the vibrant team at CDW Corporation, a leading provider of technology solutions and services, where innovation, leadership, and growth are at the heart of what we do. As a powerhouse in the tech industry, CDW Corporation offers unparalleled job opportunities to both seasoned professionals and those at the start of their careers.

Work You’ll Do

At CDW Corporation, you’ll be part of a culture that cherishes diversity, innovation, and leadership. Our team is composed of over 10,000 strong, dedicated professionals who lead the way in technology and consulting services. We are committed to helping some of the world’s most well-known companies navigate their digital transformation journeys.

Explore Professional Growth and Development

CDW Corporation is not just a company; it's a place where you can shape your future. With a variety of career paths available, your professional growth is supported by robust training programs, diversity training, and opportunities for leadership development. We believe in fostering a culture where innovation thrives and where our employees are encouraged to develop new skills and gain valuable experiences.

Internship Programs

Kickstart your career with CDW Corporation’s dynamic internship programs. These opportunities allow you to apply your skills in real-world scenarios, ensuring you gain the experience and insights needed to excel. Our internships are designed to transform students into professionals by involving them in projects that promote problem-solving, networking, and professional growth.

Join Our Team

Discover the wide range of job opportunities at CDW Corporation, from technology to business management. Each position offers a chance to work on transformative technology solutions while building a career that aligns with your passions and skills.

Benefits of Working at CDW Corporation

Choosing to work at CDW Corporation means opting for a career that comes with competitive benefits designed to support you and your family. These include health, dental, and vision insurance, employee wellness programs, and generous retirement plans. Our commitment to employee well-being is reflected in every aspect of our corporate structure.

Inclusive Hiring Process

Our hiring process is designed to be transparent and inclusive, ensuring that all candidates, regardless of background, feel valued from the initial interview through to potential employment. We look for passionate, curious, and innovative team players who are ready to drive change. Prepare your resume, sharpen your interview skills, and get ready to join a team that’s at the forefront of the technology sector.

Stay Connected

Keep up to date with the latest at CDW Corporation by following our careers blog. Gain insider perspectives, industry-leading insights, and career tips that you can put to use today—all from the people who work here.

Job Alert Emails

Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding career opportunities that await at CDW Corporation.

Explore Jobs at CDW Corporation

Search open positions that match your skills and interests on our careers page. Whether you’re looking to contribute your experience or start fresh, CDW Corporation offers a path for you. [SEARCH CDW JOBS] Join CDW Corporation and be part of a team that values professionalism, opportunity, and innovation. Let’s shape the future together!
Learn more about CDW Corporation
Size
13,900 employees
Market Cap
$24.1 billion
Industry
Net Income
$788.4 million
Founded
1984
5 Year Trend
+8.8%
Revenue
$18.4 billion
NASDAQ

Similar Jobs

More Jobs at CDW Corporation

More Telecommunications & Hardware Jobs

Find similar Senior Network Voice Engineer - TS/SCI Clearance jobs: