Senior Systems Engineer in Annandale

Leidos DSI is seeking a highly skilled, customer-focused Senior Systems Engineer to support mission-critical infrastructure for high-profile Federal Government customers. This is a hands-on, high-visibility role supporting secure, enterprise-scale environments that demand operational excellence, technical depth, and strong stakeholder engagement. This position is based in Washington, DC. The selected candidate must be within commuting distance. The role is 100% on-site during the first 90 days. There is currently flexibility for a 50% hybrid schedule thereafter but subject to change to 100% onsite to meet customer needs as required., As a Senior Systems Engineer, you will serve as the technical lead and trusted advisor for on-premises infrastructure environments supporting critical government missions. You will own the full systems lifecycle - from architecture and implementation through sustainment, optimization, and compliance - ensuring secure, resilient, and high-performing infrastructure operations., * Serve as the primary technical steward for mission-critical, on-premises server and storage infrastructure.

• Architect, implement, document, and sustain enterprise infrastructure supporting file and application servers.
• Design and maintain highly available VMware environments and NetApp SAN solutions, including SnapMirror configurations.
• Ensure compliance with required configuration baselines, vulnerability remediation standards, backup/recovery objectives, and system availability targets.
• Act as the primary technical point of contact for government stakeholders and system owners, building strong, trusted relationships.
• Capture, manage, and translate customer requirements into actionable technical solutions.
• Implement and maintain systems in accordance with federal IT security policies and enterprise standards.
• Prepare for and support security audits, inspections, and continuous monitoring activities.
• Proactively identify risks and drive remediation efforts to maintain a strong cybersecurity posture.
• Evaluate and integrate emerging technologies to improve operational efficiency and ensure mission continuity.
• Support maintenance windows and occasional after-hours activities to prevent mission disruption.

• Bachelor's degree with 8+ years of systems engineering experience, or Master's degree with 6+ years of experience (Additional relevant experience may be considered in lieu of degree)

• U.S. Citizenship required

• Ability to obtain and maintain a Top Secret security clearance

• Proven experience in customer-facing technical roles

• Strong analytical and problem-solving capabilities

• Excellent written and verbal communication skills

• Demonstrated accountability, attention to detail, and persistence in resolving complex technical issues

• Technical expertise in:

• VMware (design, configuration, deployment, high availability)
• NetApp SAN administration, including SnapMirror
• Windows Server and RHEL Linux administration
• Vulnerability remediation using tools such as Nessus
• Configuration management best practices and tools, * Experience with enterprise backup technologies (NetBackup, Commvault, etc.)

• Familiarity with CI/CD pipelines (Git or similar)
• Experience supporting AWS and/or Azure environments
• Experience with monitoring and endpoint management tools (Nagios, BigFix BES, etc.)
• Ability to develop high-level infrastructure and network architecture diagrams

What Success Looks Like

• Strong government stakeholders trust and satisfaction
• Secure, stable, and highly available infrastructure operations
• Proactive vulnerability management and audit readiness
• Continuous improvement in performance, automation, and reliability

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 www.leidos.com/careers/pay-benefits.

Energy Jobline is the largest and fastest growing global Energy Job Board and Energy Hub. We have an audience reach of over 7 million energy professionals, 400,000+ monthly advertised global energy and engineering jobs, and work with the leading energy companies worldwide. We focus on the Oil & Gas, Renewables, Engineering, Power, and Nuclear markets as well as emerging technologies in EV, Battery, and Fusion. We are committed to ensuring that we offer the most exciting career opportunities from around the world for our jobseekers., 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., 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 www.Leidos.com.