System Administrator Security Clearance

Position: System Administrator with Security Clearance
Job Description ECS is seeking a System Administrator to work in our Arlington, VA office / remote . Overview The System Administrator will play a critical role in supporting a large-scale federal IT modernization initiative, working to transform legacy systems into modern, secure, and efficient technology platforms. This position requires a security-conscious professional who can operate effectively in a highly regulated federal environment while driving innovation and operational excellence.

The successful candidate will be responsible for managing complex IT infrastructure supporting mission-critical federal operations, ensuring 99.9% uptime requirements are met while maintaining strict compliance with federal security standards including FedRAMP, FISMA, and agency-specific requirements.

This role offers the opportunity to work with cutting-edge technologies while making a meaningful impact on government service delivery to citizens. Working as part of a cross-functional modernization team, the System Administrator will collaborate with cloud architects, cybersecurity specialists, application developers, and federal stakeholders to implement scalable solutions that enhance operational efficiency and citizen services. Responsibilities Infrastructure Management & Modernization
* Design, implement, and maintain hybrid cloud infrastructure supporting federal workloads across AWS Gov Cloud, Azure Government, and on-premises environments
* Execute migration strategies for legacy systems to modern cloud-native architectures while ensuring zero data loss and minimal service disruption
* Implement Infrastructure as Code ( IaC ) practices using tools such as Terraform, Cloud Formation, and Ansible to ensure consistent, repeatable deployments
* Manage and optimize virtualized environments including VMware vSphere, Hyper-V, and containerized applications using Docker and Kubernetes Security & Compliance
* Implement and maintain security controls in accordance with NIST Cybersecurity Framework, FedRAMP requirements, and agency-specific security policies
* Conduct regular vulnerability assessments and coordinate remediation efforts to maintain Authority to Operate (ATO) certifications
* Manage privileged access controls, multi-factor authentication systems, and endpoint protection solutions
* Ensure compliance with federal regulations including FISMA, FIPS 140-2, and Common Criteria standards Operations & Performance Management
* Monitor system performance using enterprise tools such as Splunk, Nagios, or Solar Winds to proactively identify and resolve issues
* Maintain comprehensive backup and disaster recovery procedures with regular testing to ensure RTO/RPO requirements are met
* Perform capacity planning and resource optimization to support growing federal workloads while managing budget constraints
* Coordinate planned maintenance windows and emergency response procedures with minimal impact to mission-critical operations Collaboration & Documentation
* Work closely with federal program managers, contractors, and technical teams to ensure alignment with modernization objectives and timelines
* Maintain detailed system documentation, standard operating procedures, and configuration management databases
* Participate in change management processes and technical review boards to ensure proposed modifications meet federal standards
* Provide technical mentorship to junior team members and knowledge transfer to federal personnel Salary Range: $120,000 - $145,000 Required Skills
* U.S. Citizen
* Bachelor's degree in Computer Science , Information Technology, or related technical field, or equivalent combination of education and experience
* Minimum 7 years of system administration experience in enterprise environments, with at least 2 years supporting federal government or highly regulated industries
* Ability to obtain and maintain Public Trust suitability Desired Skills
* Current certifications:
CompTIA Security+ (mandatory for federal work) and one of the following: AWS Solutions Architect, Microsoft Azure Administrator, or VMware Certified Professional
* Demonstrated experience with Windows Server 2016/2019/2022 and Linux distributions (RHEL, CentOS, Ubuntu) in enterprise environments
* Proficiency with federal cloud platforms including AWS Gov Cloud and Microsoft Azure Government, including services such as EC2, S3, RDS, Active Directory, and Azure Virtual Machines
* Experience with configuration management tools (Ansible, Puppet, Chef) and Infrastructure as Code practices
* Knowledge of networking protocols, firewalls, load balancers, and VPN technologies in secure government environments
* Familiarity with containerization technologies (Docker, Kubernetes) and CI/CD pipeline tools (Jenkins, Git Lab, Azure Dev Ops)
* Experience with enterprise monitoring and logging solutions, database administration (SQL Server, Oracle, Postgre

SQL), and backup solutions
* Working knowledge of federal compliance frameworks…