Voip Engineer

Voice Over Internet Protocol (VoIP) Engineer

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

Responsibilities Include, But Are Not Limited To:

• Design, configure, and deploy Cisco Collaboration solutions, including Unified Communications Manager (CUCM), Unity Connection, and Cisco IM & Presence

• Develop and implement VoIP network architectures that meet DoD and Navy standards

• Integrate VoIP systems with existing network infrastructure and ensure interoperability with other communication systems

• Perform regular maintenance, updates, and patches to VoIP systems to ensure optimal performance and security

• Troubleshoot and resolve VoIP-related issues, including call quality, connectivity, and configuration problems

• Provide technical support and training to end-users and IT staff on VoIP systems and features

• Ensure Collaboration systems comply with DoD security protocols and Navy-specific communication requirements

• Implement and maintain security measures, including encryption, access controls, and monitoring, to protect Collaboration communications

• Conduct regular security assessments and audits to identify and mitigate vulnerabilities

• Create and maintain detailed documentation of Collaboration system configurations, network diagrams, and standard operating procedures

• Generate reports on Collaboration system performance, usage, and security incidents

• Collaborate with other IT teams to ensure seamless integration and operation of VoIP systems

Minimum Qualifications:

• High School Diploma or equivalent

• 5+ years of experience in VoIP engineering, with a focus on Cisco voice technologies

• Experience with designing, implementing, and maintaining Cisco VoIP solutions

• In-depth knowledge/experience of Cisco Unified Communications Manager (CUCM), Unity Connection, Cisco IM & Presence, and related technologies

• Strong understanding of VoIP protocols (SIP, H.323, MGCP) and network protocols (TCP/IP, QoS)

• Familiarity with DoD security protocols and Navy-specific communication requirements

• Excellent troubleshooting and problem-solving skills

• Strong communication and interpersonal skills

Preferred Qualifications:

• Experience working in a DoD or Navy environment is highly preferred

Clearance Requirements:

• US Citizenship and an active Secret clearance

Physical Requirements:

• Must be able to remain in a stationary position 50%

• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.

• The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

• Up to 25% travel or as needed.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at and provide your name and contact information.