Senior Systems Engineer - Citadel
About The Position
We are seeking a highly skilled Senior Systems Engineer to support the Defense Information Systems Agency Citadel mission. The ideal candidate will provide advanced engineering, integration, administration, and operational support for enterprise infrastructure and mission-critical systems in a secure DoD environment. This role requires a proactive engineer with deep experience in systems architecture, virtualization, automation, cybersecurity compliance, and enterprise operations. The selected candidate will work closely with government stakeholders, cybersecurity teams, network engineers, and mission partners to ensure high availability, performance, and security across the environment.
Requirements
- Bachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience)
- 8+ years of systems engineering or enterprise infrastructure experience
- Experience supporting DoD or federal government environments
- Strong experience with Red Hat Enterprise Linux
- Strong experience with VMware vSphere/ESXi administration
- Strong experience with Active Directory, DNS, DHCP, Group Policy
- Strong experience with Enterprise storage and backup technologies
- Strong experience with Automation and scripting tools
- Strong experience with Systems monitoring and performance management
- Understanding of RMF, STIGs, ACAS, and DoD cybersecurity policies
- Active Security+ CE or equivalent DoD 8570/8140 certification
- Active Secret clearance required
Nice To Haves
- VMware VCP, Microsoft, Red Hat, or AWS certifications
- Experience with hybrid cloud environments and automation frameworks
- Familiarity with DevSecOps methodologies and infrastructure-as-code
- Experience supporting large-scale enterprise or mission systems within DISA environments
- Knowledge of Kubernetes, containers, or modern platform engineering concepts
- Strong analytical and troubleshooting abilities
- Excellent written and verbal communication skills
- Ability to work independently in fast-paced mission environments
- Strong customer engagement and stakeholder coordination experience
- Proven ability to manage competing priorities and operational deadlines
Responsibilities
- Design, implement, maintain, and optimize enterprise systems infrastructure supporting DISA Citadel operations
- Engineer and administer Linux server environments in classified (IL6) and unclassified (IL5) networks
- Support virtualization platforms including VMware, Hyper-V, or cloud-based environments
- Develop and maintain system documentation, architecture diagrams, SOPs, and operational procedures
- Perform systems monitoring, troubleshooting, performance tuning, and root-cause analysis
- Support patch management, STIG compliance, vulnerability remediation, and RMF activities
- Collaborate with cybersecurity personnel to ensure compliance with DoD security requirements
- Automate system administration and operational tasks using PowerShell, Bash, Python, or Ansible
- Support backup, disaster recovery, continuity of operations, and high-availability solutions
- Participate in system upgrades, migrations, and technology refresh initiatives
- Provide Tier III escalation support for complex infrastructure issues
- Mentor junior engineers and contribute to technical strategy and process improvement initiatives
Benefits
- Referral bonus: $1,000
- Competitive compensation and benefits package
- Opportunities for advancement
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What This Job Offers
Job Type
Full-time
Career Level
Senior
