Cisco Unified Collaboration Engineer (Voice Engineer)

Leidos LLC; Tampa (FL); On-site; USD 59,000 - 107,000; Full time

Job summary

Leidos is seeking a Cisco Unified Collaboration Engineer (Voice Engineer) to join our Defense Sector at MacDill AFB, FL. You will design, implement, and support CUCM, CMS, Unity Connection, Expressway, and related UC solutions within a secure DoD environment.

This role requires DoD clearance, CCNA or higher, STIG and RMF familiarity, and hands-on experience with SIP/H.323, VOIP, and end-to-end UC deployments.

Job description

Cisco Unified Collaboration Engineer (Voice Engineer) MacDill AFB, FL

The Defense Sector of Leidos is in search of a Cisco Unified Collaboration Engineer (Voice Engineer) to join our team at MacDill AFB, FL. The Cisco Unified Collaboration Engineer provides full-spectrum support for voice, video, and unified communications solutions within a secure, mission-critical Department of Defense (DoD) environment. This position is responsible for designing, implementing, configuring, and maintaining Cisco Unified Communications Manager (CUCM) clusters, Cisco Meeting Server (CMS), Unity Connection, Expressway, and related collaboration technologies. The Engineer will support operational continuity for the warfighter by ensuring secure, resilient, and interoperable communications across garrison and tactical networks.

Primary Responsibilities

• Design, deploy, and manage Cisco Unified Communications (UC) infrastructure including CUCM, Unity Connection, Cisco IM & Presence, CMS, and Expressway C/E.
• Configure and maintain SIP trunks, H.323 gateways, SRST, CUBE, and MGCP configurations for integration with DISA or tactical voice networks.
• Manage dial plans, route patterns, translation rules, calling search spaces, and device pools across secure and non-secure enclaves.
• Administer and troubleshoot collaboration endpoints, Jabber clients, TFTP services, and user provisioning via LDAP integration.
• Conduct patching, upgrades, and STIG compliance for all collaboration platforms in accordance with DoD cybersecurity standards.
• Support VTC operations including scheduling, endpoint support, and bridging through CMS or hardware MCUs.
• Integrate collaboration services with Active Directory, PKI/certificate authorities, and DNS for secure authentication and service delivery.
• Provide Tier III escalation support and mentor junior team members on UC technologies.
• Participate in exercises and mission planning efforts to align collaboration capabilities with MARCENT operational requirements.

Basic Qualifications

• Bachelor’s degree with 2+ years of experience or an Associate’s degree with 4+ years of experience. Additional experience, trainings, or certifications may be considered in lieu of a degree.
• Active DoD Secret Clearance and the ability to obtain TS/SCI after hire.
• Cyber Work Force Role Code 451 (e.g., Security+ CE) or the ability to obtain within 60 days after start.
• Cisco Certified Network Associate (CCNA) or the ability to obtain within 60 days after start.
• 2+ years of hands‑on experience with Cisco Unified Communications systems in a DoD, government, or enterprise environment.
• Experience with DoD UC compliance efforts including STIG implementation, ACAS scans, and RMF documentation.
• Proficiency in Cisco IOS, VoIP call flow troubleshooting, and SIP/H.323 protocol analysis.

Preferred Qualifications

• Active TS/SCI.
• Familiarity with Cisco networking technologies and configuration.
• Cisco Certified Network Professional (CCNP) Collaboration.
• In-depth knowledge and experience deploying multiple Virtualization technologies, including Microsoft’s Hyper‑V, Microsoft Virtual Server, VMWare ESX, and VMWare Server.
• Familiarity with firewalls and their services and security.

Pay Range: Pay Range $59,150.00 - $106,925.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment‑related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment‑related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.