Systems Administrator - Senior - Military veterans preferred

Description:

Systems Administrator - Senior

Primary Location: Quantico, VA

Clearance: Active DoD Secret

Job Summary

We are seeking a Senior Systems Administrator to lead the configuration, sustainment, and performance optimization of enterprise development and production environments. This role ensures system availability, security compliance, and operational continuity through proactive administration, Agile collaboration, and continuous improvement practices. You'll be part of a high-impact team supporting mission-critical logistics systems, leading the sustainment and optimization of enterprise-scale environments while managing configurations, performing system patching and backups, and ensuring uptime and performance across mission-critical systems.

Specific Responsibilities

• Lead the sustainment and optimization of enterprise-scale development and production environments
• Administer Red Hat Linux and Oracle-based systems including Oracle Exadata and ZFS storage systems
• Monitor system logs and performance metrics to ensure optimal system performance
• Support Agile Kanban workflows and sprint planning activities
• Coordinate with hosting providers and internal teams for issue resolution
• Maintain documentation, SOPs, and configuration baselines
• Support DR/COOP readiness and obsolescence management
• Collaborate closely with cybersecurity, DevSecOps, and engineering teams to support Agile delivery cycles
• Troubleshoot complex infrastructure issues and maintain compliance with security and operational standards
• Perform system patching, backup/recovery, and performance tuning
• Lead technical outcomes and provide guidance to junior team members

Required Qualifications

• Bachelor's degree in Computer Science, Information Systems, or a related technical field
• 7–10 years of experience in enterprise systems administration, including Linux-based environments and Oracle infrastructure
• Active IAT/IAM Level II certification (e.g., Security+ CE, CySA+, CCNA Security)
• Demonstrated experience with Red Hat Enterprise Linux, Oracle Exadata, and ZFS storage systems
• Proficiency in system patching, backup/recovery, and performance tuning
• Familiarity with DoD STIGs, RMF compliance, and cybersecurity best practices
• Experience supporting Agile sustainment workflows and DevSecOps pipelines
• Leadership experience managing teams and driving technical outcomes
• Active DoD Secret Clearance
• Experience with Oracle EBS and middleware (WebLogic, SOA Suite)
• Familiarity with Agile SAFe frameworks and Planning Increment (PI) events
• Knowledge of infrastructure-as-code tools (e.g., Ansible, Terraform) and containerization (e.g., Docker, Kubernetes)
• Experience supporting hybrid cloud or cloud migration efforts (e.g., OCI, AWS GovCloud)
• Exposure to AI/ML-assisted monitoring and predictive analytics for system performance

Physical Requirements and Work Environment

• Must be able to work in a secure federal environment
• Standard office environment with computer workstation
• Ability to work on-site at Quantico, VA location
• Occasional physical handling of hardware components and server equipment
• Ability to work in a fast-paced, mission-critical environment

Travel

• Minimal travel required

Company Description

Obsidian Solutions Group LLC (OSG) is a fast-growing professional services firm based in Fredericksburg, VA. We create value for our customers by delivering technology-enabled & mission-oriented technical solutions that solve complex problems, protecting people, information, and assets. Our core capabilities are in providing Enterprise IT, Intelligence Analysis, Production & Development and Knowledge-Based Professional Services Solutions that enable the customer's mission. Obsidian Solutions Group LLC is a certified 8(a), service-disabled, veteran-owned small business.

A career at Obsidian Solutions Group means you are able to put your expertise, credentials, and talents to great use working with customers in the DOD and Intelligence Community, while enjoying the excitement of working in a fast-growing organization committed to making a difference for you

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