Senior Computer Systems Engineer

Description 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. DABAOPP1 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 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 $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. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit . Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at . Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at . If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the . Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. Leidos