System Administrator

Davita Inc.; Elizabeth City (NC); On-site; USD 70,000 - 90,000; Full time

Job summary

A leading technology consulting firm is seeking a System Administrator to support the U.S. Coast Guard. This role involves maintaining system security and performance for mission-critical logistics in a hybrid infrastructure, while collaborating in an Agile DevSecOps environment.

Qualifications

• Two years of experience with Linux, Windows, VMware, and SAS environments.
• Experience with Agile DevSecOps methodologies.
• Knowledge of security remediation for systems is crucial.

Responsibilities

• Administer and maintain enterprise systems' availability and security.
• Execute vulnerability remediation and perform system upgrades.
• Provide Tier II/III technical support.

Skills

Proficiency in administering RHEL

Proficiency in administering Windows Server

Experience with virtualization technologies

Strong scripting skills

Knowledge of STIGs and vulnerability management

Collaborative mindset in Agile DevSecOps

Education

Bachelor's or Associate's degree in Computer Science

CompTIA Security+

Additional certifications (RHCSA, ITIL, Network+)

Tools

VMware

Kubernetes

Jira

Confluence

Bitbucket

Apache

IIS

Job description

Who We Are: Oasys International, LLC (Oasys) is a rapidly expanding firm that has been recognized on Inc. 5000 magazine's list of the fastest-growing companies for five consecutive years. We are a dynamic organization dedicated to providing world-class technology consulting services through our team of expert technologists, consultants, engineers, and subject matter experts. At Oasys, we prioritize continuous learning, a healthy work-life balance, and a collaborative work environment. Our culture is merit-based, recognizing and rewarding performance and fostering a supportive and social atmosphere.

Position Summary:

Oasys is seeking a System Administrator to support the United States Coast Guard (USCG) at the Aviation Logistics Center (ALC)-Information Systems Division (ISD). The System Administrator is responsible for maintaining enterprise systems' availability, security, and performance to support mission-critical aviation logistics.

The role supports hybrid infrastructure, including Windows, RHEL, VMware, and Kubernetes environments-while executing vulnerability remediation, system upgrades, and daily administration tasks in a cybersecurity-compliant DevSecOps-aligned environment.

Primary Responsibilities:

• Administer, configure, and maintain Windows Server, RHEL, and virtualized systems (VMware, Hyper-V, Kubernetes) across development, test, and production environments.
• Perform vulnerability remediation based on Tenable or equivalent scan results, implementing STIG compliance and aligning with NIST 800-53 and DHS 4300A standards.
• Support system integration and operational sustainment for legacy and modern platforms, including SAS, OpenROAD, and Apache/IIS web servers.
• Automate repetitive tasks and enforce standard configurations using PowerShell, Bash, or Python scripting.
• Assist with deployment, maintenance, and optimization of virtualized and containerized environments, ensuring high availability and resource efficiency.
• Monitor system performance, conduct capacity planning, and support system upgrades, patching, and configuration changes through change control processes.
• Participate in Agile ceremonies and collaborate with developers, cybersecurity staff, and other system administrators using Jira, Confluence, and Bitbucket.
• Provide Tier II/III technical support and assist with incident resolution, audit preparation, and ATO sustainment activities.
• Maintain clear and up-to-date documentation on system configurations, SOPs, troubleshooting guides, and system architecture.
• Support secure application deployment and infrastructure readiness for GOTS/COTS applications.
• All other duties as assigned by management.

Skills/Qualifications:

• Proficiency in administering RHEL and Windows Server platforms in hybrid (on-prem/cloud) enterprise environments.
• Hands-on experience with virtualization technologies (VMware, Hyper-V) and container orchestration using Kubernetes.
• Working knowledge of STIGs, vulnerability management, and cybersecurity baseline implementation.
• Strong scripting skills using PowerShell, Bash, or Python.
• Familiarity with web server administration (Apache and IIS) and system monitoring tools.
• Collaborative mindset with experience working in Agile DevSecOps environments.

Education/Experience Requirements:

• Bachelor's or Associate's degree in Computer Science, Math, Information Technology, Engineering, or related field. Two (2) years of directly relevant experience may substitute for one (1) year of formal education.
• Minimum of two (2) years of experience administering Linux, Windows, VMware, and SAS environments.
• Minimum of two (2) years of performing security remediation to systems with vulnerabilities based on security scans.
• Minimum of one (1) year of experience in an Agile DevSecOps software and engineering environment and Methodologies.
• Minimum of one (1) year of experience with Kubernetes, Jira, Confluence, and Bitbucket.
• Minimum of one (1) year of experience managing, configuring, deploying, and troubleshooting web applications in IIS and Apache web servers.
• Minimum of one (1) year of experience installing, configuring, and maintaining RHEL servers.
• Minimum of one (1) year of designing, building, and implementing application servers to support the business environment.
• Minimum of one (1) year of experience in server installation and upgrade with GOTS and COTS software.
• Experience supporting federal government systems, particularly within DHS or DoD environments, is strongly preferred.

Clearance:

• U.S. citizenship required
• Must have or be eligible to obtain a Position of Public Trust or DoD Secret Clearance.

Certification Requirement

• CompTIA Security+
• Additional certifications (Microsoft Certified: Windows Server Hybrid Administrator, Red Hat Certified System Administrator (RHCSA), ITIL Foundation, or Network+) are a plus.

Work Location:

• Elizabeth City, NC - On-Site

Oasys is proud to be an equal opportunity employer for all protected groups, including protected veterans and individuals with disabilities.