System Administrator

System Administrator We are seeking a highly skilled System Administrator to support a program with the Defense Information Systems Agency (DISA). The ideal candidate will provide engineering, integration, administration, and operational support for enterprise infrastructure and mission-critical systems in a secure environment. This role requires a proactive engineer with experience in multiple of the following areas: 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. Clearance: This position requires an active DOW/DoD Secret Clearance. Responsibilities & Duties: Design, implement, maintain, and optimize enterprise systems infrastructure supporting software factory/environment operations Engineer and administer VMWare and Linux server environments in classified and unclassified networks Support cloud-based platforms including AWS and Azure 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 Mentor junior engineers and contribute to technical strategy and process improvement initiatives Required Qualifications: Bachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience) 4+ years of systems engineering or enterprise infrastructure experience supporting DOW/DoD or federal government environments 2+ years managing VMware vSphere environments, including ESXi hosts, vCenter, clusters, and VMs; familiarity with vMotion, Storage vMotion, HA, DRS, VM provisioning, snapshots, performance troubleshooting, and core VMware networking and storage concepts such as VMFS, VLANs, and distributed virtual switches Strong experience with: Red Hat Enterprise Linux AWS and or Azure cloud environments Enterprise storage and backup technologies Automation and scripting tools 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 Preferred Qualifications: Microsoft, Red Hat, VCP, or AWS certifications Experience with hybrid cloud environments and automation frameworks Knowledge of Kubernetes, containers, or modern platform engineering concepts Familiarity with DevSecOps methodologies and Infrastructure-as-Code Desired Skills: 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 About NextGen: NextGen Federal Systems is an innovative technology and professional services provider specializing in advanced software solutions and comprehensive mission and business support services. We work in close collaboration with our customers to truly understand their business and mission goals. Our approach is to design, build, implement, and manage solutions that measurably improve our client's organizational performance. We have established and foster a corporate culture where we: Treat employees with fairness and respect regardless of their position, sexual identity, race, or tenure. Communicate the importance of our mission and our employees' contributions to it, ensuring they understand how their job role contributes to the greater good. Openly promote and communicate our ideas for change and adaptability. Strive to achieve results as an organization. Hold employees accountable to their commitments and provide incentives that encourage positive and productive behaviors. Value the talents and contributions of our employees as the key factor for our success. Create an environment where people can engage at all levels. Encourage people to take risks and allow them to make mistakes. Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities. NextGen Federal Systems