Redhat Linux SA - Senior

The One 23 Group

$100K — $130K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years in UNIX/Linux system/server admin support in complex IT environments.
  • Expertise in systems integration and information systems architecture.
  • Strong problem-solving skills with minimal supervision ability.
  • Active Top Secret clearance with SIPRNet eligibility.
  • U.S. citizenship is mandatory.
  • DoD IAT Level II certification is needed for the position.
  • Availability for 12x5 operations with potential 24x7 on-call requirements.
  • Capability to relocate to Site-R within 12 hours for emergency response.

Responsibilities

  • Provide administration and maintenance for UNIX/Linux systems supporting production and development.
  • Manage Red Hat Linux server environments for mission-critical support.
  • Monitor system performance and perform troubleshooting and recovery coordination.
  • Install and upgrade operating systems, security patches, and compliance-related updates.
  • Maintain high availability of server operations for JSSC customers.
  • Document incidents and resolutions using the ticketing system per SOPs.
  • Support ITIL-aligned incident and change management processes.

Benefits

  • Access to advanced technical training and certifications.
  • Opportunity to work on high-impact projects for national security.
  • Supportive collaborative environment with cross-functional teams.
  • Potential for career advancement within the DoD ecosystem.
  • Ability to contribute to cutting-edge technology in a secure environment.
Full Job Description
Position Summary

The Redhat Linux SA - Senior provides senior-level UNIX/Linux system and server administration support for JSSC Enterprise Services Support under JC32. The position supports Tier II/III operations for UNIX/Linux systems and servers supporting GCCS-J and JPES-related mission environments at the Pentagon and, when required, the COOP location at Site-R. The role performs systems operations, administration, maintenance, troubleshooting, patching, monitoring, backup/recovery coordination, configuration management support, and server operations in accordance with JSSC SOPs, change control requirements, and applicable DoD/DISA security standards.

Requirements

Requirements
  • Minimum of 10 years of relevant experience providing expert support, analysis, research, and technical solutions for complex information technology problems and processes. (ENCORE III Requirement)
  • Demonstrated expertise in an information technology subject matter area such as systems administration, information systems architecture, systems integration, communications/network systems management, or related technical disciplines. (ENCORE III Requirement)
  • Ability to work with minimal direction, exercise independent technical judgment, and develop technical solutions to complex problems requiring ingenuity, creativity, and broad technical knowledge. (ENCORE III Requirement)
  • Active Top Secret clearance with SIPRNet access eligibility required for PWS Task 6.2.3 support. (PWS Requirement)
  • U.S. citizenship required for all personnel performing on or supporting the task order. (PWS Requirement)
  • DoD IAT Level II certification required for Tier II/III system administration support. (PWS Requirement - Section 14.9)
  • Ability to support 12x5 operations with 24x7 on-call response requirements for JC32 Enterprise Services Support. (PWS Requirement)
  • Ability to provide required on-call response within two hours of positive notification. (PWS Requirement)
  • Ability to support COOP requirements, including relocation to Site-R within 12 hours of positive notification for real-world contingencies and COOP exercises, when designated as an Emergency Relocation Group member. (PWS Requirement)


Duties and Responsibilities
  • Provide UNIX/Linux systems operations, administration, and maintenance support for JSSC-supported production, test, and development environments.
  • Operate, manage, and maintain Red Hat Linux server environments supporting JSSC Enterprise Services Support mission requirements.
  • Perform account management, system resource monitoring, performance tuning, log monitoring, backup/recovery coordination, storage management support, operating system administration, and system troubleshooting.
  • Identify, test, upgrade, and install required operating system, COTS, GOTS, security, and IAVA-related patches in accordance with security requirements and approved change control procedures.
  • Support server operations and management to maintain maximum availability for JSSC customers and mission users.
  • Maintain server operating systems and associated software at versions required by JSSC.
  • Engineer, configure, and sustain UNIX/Linux server hardware and software architectures supporting JSSC mission systems.
  • Perform non-emergency disruptive maintenance, repairs, and upgrades during non-business hours unless otherwise approved by the Change Advisory Board or Government representative.
  • Document, track, update, and resolve incident tickets using the assigned ticketing system in accordance with JSSC SOPs and escalation procedures.
  • Support incident, problem, and change management processes aligned with ITIL and JSSC ITSM procedures.
  • Maintain technical and systems documentation, including configurations, operating procedures, implementation procedures, maintenance records, test plans, test reports, and operational run-books.
  • Maintain daily operational logs documenting significant events affecting system, network, or application service availability.
  • Support metrics, trend analysis, and capacity reporting for systems and services.
  • Support testing of hardware/software upgrades, security patches, IAVAs, and system changes in virtual or non-production environments prior to implementation.
  • Recommend improvements to IT operations support based on industry and ITIL best practices when directed by the Government.
  • Coordinate with Government leads, system administrators, database administrators, application teams, security personnel, and external support organizations to resolve technical issues affecting mission systems.


Operational Qualifications
  • Experience administering Red Hat Enterprise Linux in classified DoD operational environments. (Organizational / Operational Preference)
  • Experience supporting DISA, DoD, or similar command-and-control mission systems. (Organizational / Operational Preference)
  • Experience with UNIX/Linux shell scripting, automation, and system administration toolsets. (Organizational / Operational Preference)
  • Experience applying DISA STIGs, IAVAs, security patches, and vulnerability remediation actions to Linux server environments. (Organizational / Operational Preference)
  • Experience with VMware or other server virtualization platforms. (Organizational / Operational Preference)
  • Experience with enterprise monitoring, logging, performance analysis, and capacity planning tools. (Organizational / Operational Preference)
  • Experience with backup and recovery processes, storage administration coordination, and disaster recovery support. (Organizational / Operational Preference)
  • Experience supporting ITIL-based incident, problem, change, and configuration management processes. (Organizational / Operational Preference)
  • Experience developing and maintaining SOPs, operational run-books, technical documentation, and system configuration records. (Organizational / Operational Preference)
  • Current Linux+, Security+, CySA+, CCNA Security, GSEC, GICSP, SSCP, or other certification meeting DoD IAT Level II requirements. (Organizational / Operational Preference)

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