Senior Systems Engineer

Senior Systems Engineer

Location: Suitland, MD

Clearance: TS/SCI

The Decision Advantage Business Area within Defense at Leidos is seeking a TS/SCI cleared Senior Systems Engineer to join our Distributed Common Ground System – Navy (DCGS-N) team. In this role, you’ll support the Joint Concentrator Architecture (JCA), DCGS-N Enterprise Node (DEN), and DAS (DCGS-N Ashore System) at the National Maritime Intelligence Center (NMIC) in Suitland, MD. You’ll be part of a mission-driven team responsible for designing, installing, configuring, and maintaining advanced network systems that support U.S. Navy intelligence operations.

Key Responsibilities:

• Design, evaluate, recommend, implement, and document JCA/DEN/DAS network architecture.

• Maintain compliance with Defense Information Systems Agency (DISA) guidelines and Security Technical Information Guides (STIG) requirements.

• Ensure system readiness to meet all customer mission requirements.

• Provide expert support through deep investigations to find root cause of network and system failures or outages related to core infrastructure, cloud platforms, and advanced networking configurations).

• Perform system maintenance including patch testing, installation, and information assurance scans with DoW-approved tools.

• Document and recommend improvements to enhance network performance and security.

• Provide fleet support for Orchestration Services, account creation/maintenance, file dissemination troubleshooting.

• Provide GCCS-J end user support to DAS operators onsite and remotely.

• Provide DAS Active Directory user support.

• Maintain and update Jira work items and service desk trouble tickets to ensure accurate tracking, status, and resolution of assigned work, while actively participating in SAFe Agile scrum meetings, planning activities, and team processes.

• Occasionally provide after-hours distance support from the customer site for deployed U.S. Navy DCGS-N platforms.

Basic Qualifications:

• Bachelor’s degree in engineering, computer science, or information systems with 12+ years of related experience. Additional experience, training, and/or certifications may substitute for degree requirements.

• TS/SCI clearance.

• Currently possess DoD 8140 IAT-II compliance (Security+, CISSP, or equivalent)

• Technical experience with DISA STIG compliance requirements.

• Proven knowledge of remote monitoring tools like SolarWinds.

• Strong troubleshooting and communication skills.

• Comfortable working onsite in a large computer room environment.

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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:

October 8, 2026

Pay Range:

Pay Range $131,300.00 - $237,350.00

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.