Network Systems Engineer

District Partners LLC

$73K — $132K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Active DoD Top-Secret clearance with SCI eligibility.
  • Security+ Certification or equivalent DOD 8570 IAT Level II Certification required post-hire if not present at start.
  • Extensive knowledge of defense-in-depth principles and network security architecture.
  • 4+ years experience in engineering and troubleshooting networks with a focus on routing and switching protocols.
  • Strong expertise in IP network addressing, and technical documentation development.
  • Experience presenting technical information to senior management and stakeholders.
  • Hands-on experience with Cisco routing, switching, and firewall/security devices.

Responsibilities

  • Provide network operations and engineering support for IP messaging and communications.
  • Collaborate with architects to enhance STIG compliant configurations and compliance tracking.
  • Test and validate automation and best practices for network operations.
  • Develop and lead Standard Operating Procedures (SOPs) and Tactical Techniques and Procedures (TTPs).
  • Support continuous service improvements and system performance enhancements.
  • Create and maintain Engineering Implementation Plans (EIPs).
  • Participate in root cause analysis for incident management and problem management.

Benefits

  • Relevant training and professional development opportunities.
  • Opportunity to work on mission-critical projects with cutting-edge technology.
  • Comprehensive health and wellness programs.
  • Support for travel opportunities, including OCONUS travel.
  • Collaborative team environment with a focus on continuous improvement.
Full Job Description

The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contractLeidos is seeking an experienced Network Sytems Engineer to provide network operations and engineering sustainment support to a mission critical IP messaging and communications transport network. A successful candidate will develop an understanding of the services offered to external organizations, provide lifecycle systems engineering support to development and operations on the program, and use a combination of technical and functional expertise to recommend solutions to satisfy customer requirements.

Primary Responsibilities:

  • Network integration, testing, security engineering, and implementation configuration support.

  • Collaborate with network architects to define and/or continuously improve STIG compliant configuration baselines, versioning, and compliance tracking.

  • Test and validate automation and best practice insertion opportunities.

  • Lead development of SOPs/TTPs.

  • Support Continuous Service Improvements (CSI).

  • Support system performance tuning and enhancements.

  • Create and maintain Engineering Implementation Plans (EIP).

  • Support tier escalation of incident management support tasks.

  • Active participation in Root Cause Analysis (RCA) for Problem Management activities.

  • Participate in engineering meetings to bridge the gap between operations and engineering providing operational readiness for new solutions projected to be deployed into production.

  • Perform highly technical maintenance involving firewalls, VPNs, IPS, and load balancers.

  • Provide expert knowledge of network engineering and operations, large scale enterprise network solution implementation and transition to Network Operations, as well as test and evaluation activities. Perform highly technical maintenance involving network devices routers, switches, security solutions, and WANX.

Core Qualifications:

  • Active DoD clearance at the Top-Secret level with SCI eligibility

  • Security+ Certification or other DOD 8570 IAT Lvl II Certification within a certain timeframe after starting if not starting with one when hired.

  • Extensive knowledge of defense-in-depth principles, Network and Security architecture, network topology, IT device integrity, and common security elements.

  • 4+ years9 experience engineering and troubleshooting networks, including extensive routing and switching experience such as one or more of the following: MPLS, VPNs, routing protocols i.e. BGP, OSPF, IS-IS, switching protocols i.e. Spanning Tree Protocol, VLANs, LLDP, VoIP, Multicast protocols and emerging network technologies.

  • Strong understanding and in-depth knowledge of IP network/subnet addressing.
    Experienced and adept at developing and maintaining technical documents, analyses, and reports.

  • Experience developing and presenting technical information to senior customer management, customer stakeholders, and company management.

  • Hands-on experience deploying, configuring and troubleshooting Cisco enterprise network routing, switching and firewall/security devices.

  • Ability to travel up to 10% OCONUS travel.

  • Effective written and oral communication and problem-solving skills

Preferred Qualifications:

  • Extensive SME level knowledge of network engineering and operations, integration, test and evaluation activities, as well as implementation and transition to Network Operations processes and concepts

  • Cisco CCNP Route/Switch and/or CCNP Security

  • Experience and with and practical understanding of enterprise WAN principles.

  • Experience with change, configuration and performance management NetOps concepts.

  • IAT Level III Certification (i.e. CISSP or equivalent).

Required Education & Experience:

Requires BS and 4-8 years of prior relevant experience or Masters with 2-6 years of prior relevant experience.(Or equivalent combination of education and/or experience.)

GSMO



Original Posting:
May 5, 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 $73,450.00 - $132,775.00

The Leidos pay range for this job level is a general guideline onlyand 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.

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