Unified Communications Engineer

General information

Requisition #

R70594

Locations

USA-VA-Chantilly

Posting Date

09/14/2026

Security Clearance Required

Top Secret

Remote Type

Onsite

Time Type

Full time

Description & Requirements

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!

MANTECH seeks a motivated, career and customer-oriented Unified Communications Engineer to join our team in Chantilly, VA. This is an onsite position.

This role supports the design, implementation, and maintenance of mission-critical voice, video, and networking solutions within secure environment.

Responsibilities include but are not limited to:

• Perform system firmware and hardware upgrades to deliver high-quality Unified Communications services to the workforce

• Analyze program metrics, ensure schedule compliance with customer guidelines, and recommend corrective actions

• Identify operational risks and present structured mitigation recommendations to management.

• Solve operational voice and video challenges and diagnose/resolve issues with vendor-specific video teleconferencing systems

• Interface directly with cybersecurity teams to satisfy requirements, track POAMs, and maintain system certifications

• Plan, evaluate, and coordinate local and remote voice/data communications equipment installations

• Schedule and perform periodic system patching and maintenance to ensure RMF compliance

Minimum Qualifications:

• Bachelor's degree with 7+ years of Voice over IP (VoIP) or Video Teleconferencing (VTC) system implementation experience, or an An associates degree with 9+ years of experience, or a High School Diploma with 13+ years of experience may be substituted for a degree

• 5+ years of IP networking experience, including DHCP and DNS configuration

• Current CCNA certification or higher, ex., CCNP or CCIE

• Current IAT level II certification, ex., Security+

• Obtain IT level III certification, SecurityX, CASP+ within 6 months of hire

• Experience providing converged Voice/VTC solutions in MS Windows LAN/WAN environments

• Experience designing and implementing Voice or Video Quality of Service (QoS) solutions and using core Cisco tools, ex., Communications Manager, Unity Connection, Emergency Responder, Prime, TMS, CMS, or ESX

Preferred Qualifications:

• Master's degree (M.A./M.S.) in a technical discipline

• CCNP Collaboration certification

• Possess ITIL Foundations Certification

• Demonstrated experience working in a SAP environment as a Unified Communications Engineer

Clearance Requirements:

• Current or active Top Secret clearance with SCI eligibility

• Eligibility to obtain Special Access Program (SAP) information access

Physical Requirements

• The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

The projected compensation range for this position is $116,400.00-$194,900.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH 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 careers@mantech.com and provide your name and contact information.