Senior Linux Systems Administrator (Systems Administrator Level 3 – SA3)

Wyetech is seeking an experienced Senior Linux Systems Administrator (SA3) to provide administration, maintenance, monitoring, troubleshooting, and operational support for large-scale Linux computing environments.

This position focuses on maintaining the reliability, security, availability, and performance of enterprise Linux clusters, including compute, networking, memory, storage, and virtualization infrastructure. The Systems Administrator will support the installation, configuration, and sustainment of Commercial Off-the-Shelf (COTS), Government Off-the-Shelf (GOTS), and Free and Open-Source Software (FOSS) solutions while ensuring compliance with established security policies and operational requirements.

The ideal candidate will possess extensive Linux systems administration experience, expertise in large-scale cluster environments, strong troubleshooting capabilities, and proficiency with infrastructure automation, virtualization, and enterprise monitoring technologies.

Required Skills/Experience:

• Active TS/SCI clearance with Full Scope Polygraph.

• CompTIA Security+ certification.

• Extensive experience using the Linux command-line interface (CLI) and associated system administration tools.

• Experience developing Bash and Python scripts to automate administrative tasks, system configurations, and operational workflows.

• Demonstrated experience installing, configuring, maintaining, and supporting COTS/GOTS/FOSS software in large-scale Linux cluster environments.

• Strong technical understanding of compute, network, memory, and storage system components.

• Experience administering and maintaining Red Hat Satellite for enterprise Linux systems management, patching, and configuration.

• Familiarity with Splunk for data ingestion, indexing, searching, monitoring, and analysis.

• Experience sustaining and supporting large Linux clusters, including daily operations, system monitoring, troubleshooting, and problem resolution.

• Experience configuring, administering, and maintaining VMware ESXi and associated virtualization environments.

• Experience with Infrastructure as Code (IaC) principles and automation tools such as SaltStack and Ansible.

• Experience implementing and maintaining corporate STE/STN security compliance policies and procedures.

• Experience using system monitoring and infrastructure management tools such as HPE OneView and Nagios.

• Experience with containerization technologies, including Docker.

Desired Skills:

• Experience with container orchestration technologies such as Kubernetes.

• Experience with distributed file systems, including Weka, Ceph, IBM GPFS, and Hadoop Distributed File System (HDFS).

• Experience using Atlassian collaboration and development tools, including Jira and Confluence.

The Systems Administrator provides technical expertise in implementing, troubleshooting, configuring, and maintaining complex IT systems. This position supports day-to-day operations, system optimization, capacity planning, incident resolution, and the sustainment of mission-critical computing infrastructure.

The Level 3 Systems Administrator also provides advanced troubleshooting, technical escalation support, and system performance analysis while collaborating with engineering teams, mission stakeholders, and internal customers to maintain operational effectiveness.

Responsibilities and Capabilities:

• Administer, maintain, and provide advanced operational support for large-scale Linux computing clusters and associated infrastructure.

• Install, configure, upgrade, troubleshoot, and sustain COTS/GOTS/FOSS software across enterprise Linux environments.

• Manage daily operations, monitoring, maintenance, and problem resolution for compute, networking, memory, storage, and virtualization components.

• Configure and maintain Red Hat Satellite for centralized systems management, software updates, patching, and configuration control.

• Develop and maintain Bash and Python scripts to automate administrative functions, system maintenance, and operational processes.

• Configure, sustain, and troubleshoot VMware ESXi virtualization environments.

• Implement infrastructure automation and configuration management using SaltStack, Ansible, and IaC methodologies.

• Utilize Splunk, HPE OneView, Nagios, and related monitoring technologies to evaluate system health, analyze events, and identify performance or operational issues.

• Maintain system security integrity and support compliance with established STE/STN security policies and procedures.

• Configure and troubleshoot network components, operating systems, and supporting infrastructure to improve reliability and performance.

• Provide Tier 1 and Tier 2 technical support, including problem identification, diagnosis, escalation, and resolution.

• Investigate and resolve complex issues involving server hardware, operating systems, applications, storage, and software integration.

• Analyze system performance, optimize resource utilization, and conduct capacity planning to support evolving mission requirements.

• Support system installation, hardware troubleshooting, technical dispatch coordination, and resolution of escalated incidents.

• Provide detailed technical analysis, incident status updates, and recommendations to agency management and internal customers.

• Support system architecture, hardware configuration, and integration activities while considering service-oriented architecture (SOA) dependencies.

• Maintain system documentation, configuration records, operational procedures, and technical troubleshooting guides.

• Collaborate with system engineers, network administrators, cybersecurity personnel, and mission stakeholders to implement enhancements and resolve infrastructure challenges.

• Recommend and implement operating system and infrastructure improvements to enhance security, availability, and operational performance.

Qualifications:

Candidates must meet one (1) of the following education and experience combinations:

• Bachelor's degree in a technical discipline from an accredited college or university, plus fifteen (15) years of Systems Administration experience in programs and contracts of similar scope, type, and complexity.

OR

• Twenty (20) years of Systems Administration experience in programs and contracts of similar scope, type, and complexity, with five (5) additional years of experience substituted for the bachelor's degree.

Required Certification:

• CompTIA Security+.

Security Clearance and Additional Requirements:

• Required Clearance: Active TS/SCI with Full Scope Polygraph.

• U.S. Citizenship required.

At Wyetech, you’ll be at the center of an award-winning corporate culture, breaking technological barriers and solving real-world problems for our federal government customers. We are committed to hiring the best of the best, and in return, we offer a world-class, truly unique employee experience that is rare within our industry.

Wyetech believes in generously supporting employees as they prepare for retirement. The company automatically contributes 20% of each employee's gross compensation to a Simplified Employee Pension (SEP) IRA, with no requirement for employee matching. All contributions are fully vested from day one, ensuring immediate ownership of retirement funds.

Additional benefits include:

Wyetech provides a generous PTO plan of up to 200 hours annually, aligned with applicable state leave regulations. Employees have the flexibility to adjust their PTO allocation at the start of each calendar year, ensuring it meets their evolving needs.

Full-time employees have the option to participate in a variety of voluntary benefit plans including:

• A Choice of Medical Plan Options, some with Health Savings Account (HSA)

• Vision and Dental

• Life and AD&D Benefits

• Short and Long-Term Disability

• Hospital Indemnity, Accident, and Critical Illness Insurances

• Optional Identity Theft and Legal Protection Services

• Employee Referral Bonus Eligibility up to $10,000

• Mobility Among Wyetech-supported Contracts

• Various contract and work locations throughout Maryland, Virginia, Colorado, Texas, Utah, Alaska, Hawaii and OCONUS

• Various team-building events throughout the year, such as monthly lunches, summer company picnic, and an annual holiday party.

• Employees receive two complimentary branded clothing orders annually.

Hourly Pay Range: $86.55–$117.21

Hourly pay rates listed for this position serve as a general guideline and are not a guarantee of compensation. Compensation will vary dependent upon factors including but not limited to: Government contract rates; education; relevant prior work experience, knowledge, skills, and competencies; certifications; and geographic location. Hourly pay rates reflect the pre-benefit gross wage amounts.

Wyetech, LLC is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Affirmative Action Statement:

Wyetech, LLC is committed to the principles of affirmative action in all hiring and employment for minorities, women, individuals with disabilities, and protected veterans.

Accommodations:

Wyetech, LLC is committed to providing an inclusive and accessible hiring process. If you need any accommodations during the application or interview process, please contact Brittney Wood. at 844-WYETECH x727 or staffing@wyetech.com. We are happy to provide reasonable accommodations to ensure equal access to all candidates.

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