Leidos is seeking a Network Engineer to ensure the reliability and security of mission‑critical systems and networks. In this role, you’ll maintain infrastructure, troubleshoot outages, and support security authorizations while working in a collaborative, high‑impact environment at our customer site in Suitland, MD.
Primary Responsibilities:
Troubleshoot, isolate, and resolve network outages while providing prompt event notifications to internal and external stakeholders.
Perform any physical patching and software (CISCO IOS) patching as required.
Review Information Assurance Vulnerability Alerts/Bulletins (IAVA/B) related to CISCO products and develop and implement remediation plans.
Perform any required re-accreditation actions such as DISA STIG review, IOS upgrades, vulnerability scan remediation, and document various required lists (PPSM, H/W, and S/W) during the network’s accreditation cycle.
Required Qualifications:
Active DoD Top Secret/SCI
Bachelor’s degree with 4+ years of relevant experience, OR Master’s degree with 2+ years of experience OR Equivalent experience, training, or certifications may be considered in lieu of a degree.
Active IAT Level II DoD Approved 8570 Baseline (e.g., Security+ CE) or the ability to obtain prior to start date.
Active CCNA certification or the ability to obtain within 90 days of hire.
Proficiency with Cisco configurations (EIGRP, BGP, SNMP, TCP/IP, OSPF, VLANs, VPN, NAT, GRE, IPSEC).
Experience with packet capture, traffic analysis, and vulnerability remediation.
Strong understanding of the OSI model and multi‑protocol routing (VRF, VPN, EIGRP, BGP, OSPF, VPLS).
Why Join Leidos?
At Leidos, this isn’t just another support role—it’s a chance to shape the future of national security operations. You’ll:
Work at the heart of critical intelligence missions.
Develop cutting‑edge technical skills and grow professionally.
Collaborate with some of the brightest minds in the industry.
Enjoy the stability, growth, and support of a globally recognized leader.
Ready to Make an Impact?
Bring your expertise to Leidos and help redefine what’s possible. Apply today and take the next step in your career.
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 6, 2026For 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.
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.
Top Skills
What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead.
