System Administrator

Reflexive Concepts

Annapolis, MD

Reflexive Concepts is seeking a skilled System Administrator to join our team!

Duties and Responsibilities:

Work on a fast-paced team providing support for the implementation, troubleshooting, and maintenance of Information Technology (IT) systems supporting critical enterprise applications.
Manage IT system infrastructure and associated processes, ensuring the availability, reliability, security, and performance of enterprise applications and services.
Provide day-to-day operations, monitoring, maintenance, and problem resolution for client systems, servers, storage platforms, network devices, and related infrastructure.
Provide Tier 1 (Help Desk) and Tier 2 (Escalation) support, including problem identification, diagnosis, troubleshooting, and resolution.
Support the escalation process and communicate system status, issues, and resolutions to agency management and internal stakeholders.
Assist with hardware support activities, dispatch processes, and issue resolution through completion.
Configure, administer, and maintain Windows and UNIX/Linux operating systems, including software installation, patching, system hardening, and performance tuning.
Maintain the integrity and availability of infrastructure components while implementing enhancements to improve reliability, scalability, and operational efficiency.
Collaborate with engineering and development teams to support infrastructure modernization efforts, including evaluating, testing, and implementing technology solutions that enhance system capabilities.
Participate in the assessment of existing systems and architectures, providing operational and technical input for initiatives involving automation, DevOps practices, cloud technologies, and application modernization.
Support the planning, testing, deployment, and sustainment of infrastructure and application changes across on-premises, hybrid, and cloud-hosted environments, as applicable.
Assist in analyzing operational, security, compliance, and technical considerations associated with infrastructure changes and technology migrations.
Develop and maintain technical documentation, standard operating procedures, and system configuration baselines.

Required Qualifications:

Active TS/SCI security clearance with Full Scope (FS) Polygraph.
A bachelor's degree and ten (10) years of experience as a system administrator on programs of similar scope and complexity are required. In lieu of a bachelor's degree, fifteen (15) years of experience is required.
In-depth Linux experience.
Familiarity with PowerShell and Bash scripting languages.
Experience with system hardening.
Experience working with ISSOs for system compliance.
DoD 8570 compliance with Information Assurance Technical (IAT) Level I is required.
Must be able to work core hours of 10AM-2PM Monday-Friday. Exceptions will be considered on a case-by-case basis.

Technology Stack:

AWS
Ansible
Docker
ElasticSearch
Terraform
Jenkins
Linux
Windows
GitLab

Desired Skills:

Familiarity with cloud platforms such as AWS.
Experience with infrastructure automation, configuration management, or Infrastructure as Code (IaC) tools such as Ansible, Terraform, or AWS CloudFormation.
Experience supporting DevOps practices, CI/CD pipelines, or automated deployment processes.
Familiarity with containerization technologies such as Docker or Kubernetes.
Experience performing vulnerability remediation, security patching, and STIG implementation.
Experience supporting Authority to Operate (ATO) processes, RMF activities, and security compliance initiatives.

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Vacancy posted 4 days ago

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