Unix Systems Administrator in Washington, District of Columbia at The One 23 Group

** MUST possess at minimum an ACTIVE Top Secret clearance with SCI eligibility**

At The One 23 Group, our mission is to set the benchmark for excellence in government services. We empower our clients in the Department of War, Intelligence Community, and Federal Civilian sectors to excel with our advanced capabilities. Our dedication lies in fostering a people-first culture, underpinned by steadfast ethical principles. Embracing innovative technologies and process improvements, we are steadfast in our journey toward a future that is both bright and transformative.

Our expertise spans consulting and analytics, digital workplace solutions, and cyber compliance. With our global footprint, we place a strong emphasis on nurturing our people and culture, which forms the core of our successful strategies in leadership and financial management. We pride ourselves on our extensive experience and effective approach, ensuring that we lead with both innovation and integrity.

Position Description

In this role, you will serve on the Integrated Information Management Systems – Information Technology Support Services (IIMS-ITSS) contract as a Unix Systems Administrator for the JSSC at the Pentagon, Washington DC, responsible for support in managing the functionality and efficiency of multiple JSSC owned/operated systems and providing customer application development/administration supporting systems within the National Military Command Center (NMCC) Command and Control System (NCCS) Operating Environment (OE).

1. Provide high level, Tier III technical systems administrative support for the NCCS OE, associated systems, and custom interfaces and applications supporting JSSC operations including tasks related to database administration, data management, network infrastructure management, and software management in production and testing environments, and with minimal direction, independently analyze and resolve exceptionally complex issues, applying extensive technical expertise to develop innovative solutions that meet customer needs.

2. Complete essential system and database administration functions working with a matrixed team of technicians to include both government and contractor, set up and maintain multiple and different versions of UNIX operating systems, supporting tools, middleware, and privilege sets, attend and actively participate in change and configuration control functions, and implement Security Technical Implementation Guides (STIG) in direct support of Information Assurance Vulnerability Management (IAVM)

3. Operate with appreciable latitude to analyze diagnostics of applications, system and vendor software, and operate with appreciable latitude in developing methodology and presenting solutions to problems regarding operating system/database management system/application system performance/challenges, administer/execute utilities, system and vendor software; and monitoring and tuning systems/applications within the NCCS OE. Provide authoritative guidance on complex technical issues, offering expert analysis and recommendations to improve system performance and ensure compliance with mission requirements.

4. Create/Engineer custom applications and or processes to include creating web applications, developing script bases tasks, building custom applications, installing/configuring different applications, and operating and maintaining the custom applications while ensuring version control and providing software packaging and delivery support by demonstrating ingenuity and creativity in problem-solving.

5. Prepare system architecture and designs including software, hardware, communications and interface requirements and perform systems definition, trade-off and design activities, guiding the successful completion of major projects and potentially taking on a leadership role within the team.

6. Exercise sound independent judgement to review, evaluate, and analyze system designs and prepare, review, and evaluate system documentation, specifications, test plans and procedures, develop methods, techniques, and evaluation criteria associated with obtaining results under this contract; and identify upgrade needs, and anticipate customer requirements by effectively planning, scheduling, and overseeing system upgrades, while providing strategic technical direction and alternatives.

7. Conduct analysis of system requirements and components and performs system audits to ensure all intended system functionality, operations and performance requirements are achieved and maintain systems and applications. Provide support when required and support cybersecurity and IA policy efforts to maintain the cybersecurity posture of supported systems, related hardware, and support tools

8. Interact with both customer and contract leadership relating complex technical issues/solutions in a manner to establish their confidence Your role will involve substantial written and oral communication, ensuring that technical direction and alternatives are clearly articulated.

9. Improve the customer’s operating environment by providing expert support while also maintaining the cybersecurity/IA posture of systems/hardware managed/administered for both JSSC and JSSC’s customers’ assets and utilizing your extensive technical knowledge and leadership skills to drive successful outcomes.

10. Compliance with all safety and security requirements, policies, and procedures; worksite access protocols and updates, training requirements, required certifications, and other duties/projects as assigned

11. This job description is not designed to cover or contain a comprehensive listing of all activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change to meet the needs of the customer or mission.

Requirements

• High school diploma, and
• DoD 8570 Information Assurance Technical Level II (IAT-II) CompTIA Security+CE, and
• 10 years equivalent experience of which 4 years is specialized providing system/database administration support to include customer application development, a degree is not required, and
• Minimum active Top-Secret Clearance with Sensitive Compartmented Information (SCI)

Preferred

• CE Certification: Red Hat Certified System Administrator (RHCSA) or similar
• Information Technology Infrastructure Library (ITIL) Version 3 Foundation Certification

Supervisory Responsibility

This position has no direct supervisory responsibility but may oversee the work of journeymen, subordinates, or teams associated with projects.

Work Environment

Primarily performed in a highly secure professional environment with strict access controls and established facility protocols. The workspace may be windowless or confined and requires regular use of standard office equipment. All government- or company-owned equipment and materials must be properly secured and maintained. When remote work is authorized, employees are responsible for maintaining a safe and ergonomically appropriate workspace

Physical / Mental Demands

Primarily a sedentary role requiring extended periods of sitting, computer use, and data analysis. Occasional standing, bending, walking, and lifting of standard office materials may be required. Must be able to maintain focus and make sound decisions in a fast-paced environment

Position Type/Expected Hours of Work

This is a full-time position requiring a minimum of 40 hours per week in support of contract requirements. Employees must be available during DISA core business hours. Additional or after-hours work may be required based on mission and operational needs.

This position supports a 24/7 mission environment and may require flexibility to provide coverage outside of standard business hours. Employees must also be available to support Continuity of Operations Plan (COOP) activities at designated off-site facilities, as required for real-world events, exercises, or other mission-critical operations.