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LeidosLE

Senior Network Systems Engineer

Leidos is an American defense, aviation, information technology, and biomedical research company that provides scientific, engineering, systems integration, and technical services to government and commercial customers.

Leidos

Employee count: 5000+

Salary: 105k-189k USD

United States only

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Leidos Digital Modernization Sector is looking for a Senior Network Systems Engineer to work on the Army Global Unified Network (AGUN) – Increment 1 (INC1) program. The Global Enterprise Network Modernization – OCONUS (GENM-O) is a critical mission provider responsible for keeping the Army connected through global network modernization projects. The Army Global Unified Network (AGUN) - Increment 1 (INC1) will unify the next generation of Army transport to comply with the Joint Regional Security Stack (JRSS) divestiture mandate. A phased systematic approach is required to provide individual sites with standardized, updated technology systems to ensure the Army’s Information Technology (IT) infrastructure is equipped to provide soldiers with cutting-edge technology to ensure applications, data, and enterprise services are accessible, trusted, and interoperable across the globe.

Possesses and applies a comprehensive knowledge across key tasks and high impact assignments. Plans and leads major technology assignments. Evaluates performance results and recommends major changes affecting short-term project growth and success. Functions as a technical expert across multiple project assignments. May supervise others.

Primary Responsibilities:

  • Assists with overseeing the network engineering and design process from initiation to closure.

  • Holds pivotal role on Remote Engineering & Installation Teams (REITs) and Orchestration & Automation Teams (OATs).

  • Assigns tasks, manages workloads, and provides performance execution leadership and guidance.

  • Responsible for the survey, engineering, installation, configuration, and reliable operation of computer systems, servers, and networks.

  • Develops deliverables including the Engineering Implementation Plan (EIP), Requirements Traceability Matrix (RTM), Project Drawings, Innovation Recommendation Report, and Concept Development Report.

  • Acts as a liaison between the AGUN program and customer, coordinating with the Program Management Office (PMO) for engineering and design solutions.

  • Implements industry best practices, including Model Based System Engineering (MBSE), Network Security Development Operations (NetSecDevOps) Digital Twin, and Security Development Operations (SecDevOps) methodologies, to enhance insight, decision-making, and process automation.

  • Manages data and information, develops RACI charts and Software Defined Networking (SDN) solutions.

  • Employs continuous improvement methods to analyze historical data trends for intelligence assessments.

  • Develops and integrates AGUN network and network orchestration solutions and configures network and network security devices in the Lab environment.

  • Surveys and tests existing infrastructure for potential re-use in designing enterprise capabilities.

  • Develops, maintains, and updates technical documentation such as enterprise architecture, application/system design, and network architecture and design.

Basic Qualifications:

  • US Citizen with a Secret security clearance.

  • DoD 8570 certifications.

  • IAT II, OS.

  • Bachelor’s degree and 12+ years of related experience or a Masters and 10+ years of related experience. A combination of education and experience will be considered in lieu of a degree.

  • Demonstrated technical team leadership experience.

  • Demonstrated experience working within the Agile framework.

  • Prior experience with designing, deploying, testing, implementing, and migrating network infrastructure.

  • Hands on experience with SD-WAN technologies (e.g. Cisco, VERSA, Juniper, etc.).

  • Extensive knowledge/experience of large-scale WAN, MPLS, routing protocols (BGP, OSPF, EIGRP, ISIS), and internet technologies.

  • Strong campus/enterprise networking experience.

  • Able to conduct research into networking issues and products as required.

  • Able to frequently travel to CONUS/OCONUS locations 50% of time.

  • Demonstrated experience with Microsoft Visio.

Preferred Qualifications:

  • Prior experience working within Army’s IT infrastructure.

  • Familiarity with API automation/orchestration tools/systems such as Ansible and Python Scripting.

  • Familiarity working within structured CI/CD DevOps pipelines.

  • Strong understanding of virtualization, hypervisor, HCI, cloud-native, and container technologies.

  • Prior experience with Public/Gov/DoD Cloud environments and implementing virtualized network infrastructure.

  • Hands on experience with Firewalls (e.g. Palo Alto, Cisco, Juniper, etc.).

  • Familiarity/Experience with Remote Access VPN solutions, IPsec, TLS, PKI.

  • Strong understanding of SASE/SSE Zero Trust principles/products (Cisco Secure Access, Prisma, zScaler, VERSA, AppGate, etc.).

  • Professional and/or Expert level Certifications/Specializations in industry leading SDN technology (e.g. Cisco, Juniper, VERSA, etc.).

  • Maintain current knowledge of industry trends and tools to provide best-practice insight and best-in-class recommendations to management.

  • Demonstrated advanced technical, problem-solving, and communication skills.

  • Ability to solve problems and resolve project dysfunction using creativity or leveraging core values. Experience should be beyond just user admin level and include building environments from the ground up, maintenance and deep troubleshooting.

  • Prior experience with USAISEC drafting requirements and drafting site implementation deliverables (floorplans, wiring diagrams, logical diagrams, etc).

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:

September 16, 2025

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 $104,650.00 - $189,175.00

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.

About the job

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Job type

Full Time

Experience level

Senior

Salary

Salary: 105k-189k USD

Location requirements

Hiring timezones

United States +/- 0 hours

About Leidos

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Leidos' story begins in 1969 when Dr. J. Robert Beyster, a visionary scientist, founded Science Applications Incorporated (SAI) in La Jolla, San Diego, California. With a modest investment and a powerful idea, Dr. Beyster embarked on a journey to apply scientific expertise to solve complex problems. The company's early days were marked by a focus on research and engineering, tackling challenges for various government and commercial clients. One of its initial significant projects involved studying radiation-based cancer therapy for the Los Alamos National Laboratory, which laid the groundwork for Leidos' future health business. SAI soon expanded its reach, opening an office in Albuquerque to support the Air Force Weapons Laboratory's work on electromagnetic phenomena, a precursor to the company's Physical Science Group.

Throughout the 1980s, the company, then known as Science Applications International Corporation (SAIC), strategically shifted its focus towards national security and defense, solidifying its position as a key government services provider. This era set the stage for substantial growth and diversification. The 1990s saw SAIC continue to expand its offerings and international presence, securing its first major global contract with the Kuwaiti Defense Forces. A pivotal moment arrived in 2013 when SAIC underwent a significant transformation, splitting into two independent, publicly traded companies: a new company retaining the SAIC name and the original company, which was rebranded as Leidos (a name derived from 'kaleidoscope'). Leidos, as the legal successor to the original SAIC, inherited its pre-2013 stock price and corporate filing history and established its new headquarters in Reston, Virginia. This strategic move allowed Leidos to sharpen its focus on national security, health, and engineering solutions. Another major milestone occurred in August 2016 when Leidos merged with Lockheed Martin's Information Systems & Global Solutions (IS&GS) business, a landmark transaction that created the defense industry's largest IT services provider and significantly expanded Leidos' capabilities and market share. Today, Leidos stands as a Fortune 500® global science and technology leader, employing approximately 47,000 people worldwide and generating billions in annual revenue, committed to making the world safer, healthier, and more efficient through innovation and technology.

Employee benefits

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Paid sick days

Leidos offers paid sick days.

Health Insurance

Leidos offers health insurance.

Dental Insurance

Leidos offers dental insurance.

Vision Insurance

Leidos offers vision insurance.

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Leidos hiring Senior Network Systems Engineer • Remote (Work from Home) | Himalayas