Network Unified Communications Design Engineer Senior

Unleash Your Potential

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer's success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

If this sounds like an environment where you can thrive, keep reading!

The Mission

The Leidos team delivers the core backbone of the Service, Management, Integration and Transport (SMIT) program, including cybersecurity services, network operations, service desk, and data transport. Leidos will support network modernization efforts to provide Sailors, Marines and the civilian workforce the tools they need to be more efficient at increasing naval capabilities and further empowering the Navy Marine Corps team to compete and win.

Your Main Objective

- Assist the Government Lead in the daily engineering duties on systems. Perform general Local Area Network (LAN)/Base Area Network (BAN)/Wide Area Network (WAN) administration. Schedule conversions and cutovers.

- Evaluate and design communication hardware and software, troubleshoot LAN/BAN/WAN and other network related problems.

- Develop and integrate identity and access management requirements.

- Support engineering and design of Voice over Internet Protocol (VoIP) services to include the design and integration of new and existing VoIP servers, switches, routers, and other equipment supporting VoIP networks with capability to support Extension Mobility, Unified Messaging, Emergency Responder, and Call Center operations in a Service Desk environment.

- Design VoIP services that provide Layer 3 switching capability and updated Tactical Local Area Network Encryption (TACLANE) configurations in support of integration and transition of USMC and Defense Information Systems Agency (DISA) Voice over Secure Internet Protocol (VoSIP).

- Design configuration of auxiliary voice Virtual Local Area Networks (VLANS). Design configuration and operations of network devices, Public Switched Telephone Network (PSTN) interfaces, and fax modules supporting the voice system.

- Manage Hardware, Software, network, and scheduling required for end users to conduct videoconferences on Department of Navy (DON), Department of Defense (DoD), Federal, or Commercial networks. Integrate with standard Active Directory (AD) services plus the availability to use Windows Light Directory Access Protocol (LDAP) services for network devices and appliances.

- Perform Rights Management Services for administrators, users, and groups.

- Design, Develop and Operate application networking ports and protocols, Information Assurance (IA), routing and LAN. Perform integration with Public Key Infrastructure (PKI) certificates and network accounts to support two-factor authentication for all AD domain account categories and eliminate the need for password-based authentication.

- Develop customized multivendor solutions utilizing Cisco, Juniper, Brocade, and other vendor technologies.

- Develop, update, track, and perform Internet Protocol (IP) scheme and address management.

What Sets You Apart

- Bachelor's Degree or may be substituted with relevant experience
- 8-10 Years of Experience
- Active Secret Clearance
- Information Assurance Technician (IAT) Level III

Preferred Qualifications
- Information Technology Infrastructure Library (ITIL)
- Cisco Certified Security Professional (CCSP)
- Fortinet Certified Network Security Professional (FCNSP)
- Juniper Networks Certified Specialist Security (JNCIP-SEC)
- Certified Modeling & Simulation Professional (CMSP)

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that provide them with an opportunity to thrive, professionally and personally. For us, helping you grow your career is good business. We'd like to learn more about you, apply today!

NGEN

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:
February 18, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:
Pay Range $92,300.00 - $166,850.00

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.