user avatar

Systems Administrator (Windows/Linux)

ActioNet Inc

Posted today

Job Requirements

Yokota, Japan
Top Secret/SCI Polygraph not specified
Mid Level Career (5+ yrs experience)
$130,000 - $170,000

Job Description

Location: Yokota Air Base, Japan — 100% Onsite
Salary: $148,000 Straight Salary
Clearance: Active TS/SCI with CI Polygraph

Position Overview
ActioNet is seeking a System Administrator to provide hands-on systems administration and infrastructure support in a secure, classified environment at Yokota Air Base, Japan. This is a highly technical, mission-focused position responsible for installing, configuring, securing, troubleshooting, and maintaining Windows and Linux systems, networks, applications, and associated infrastructure.

The System Administrator will build and maintain systems from bare metal, manage authentication services, perform backups, monitor security events, troubleshoot hardware and software failures, and ensure systems remain compliant with DoD and Intelligence Community security requirements. The role also supports cybersecurity initiatives, automation, infrastructure-as-code, documentation, system optimization, and distributed infrastructure.

The successful candidate is a hands-on, independent problem solver who can work directly with customers, prioritize competing requirements, and operate effectively in a fast-paced, mission-critical environment.

Key Responsibilities
Provide hands-on onsite system administration and technical support in a classified environment.
Install, configure, operate, maintain, and troubleshoot servers, workstations, network equipment, applications, and related infrastructure.
Configure and manage Windows and Linux operating systems, including Red Hat Enterprise Linux.
Build and configure systems from bare metal in accordance with approved security baselines and accredited configurations.
Configure and manage DoD and Intelligence Community standard authentication services.
Configure and troubleshoot IP addressing, subnets, switches, DNS, DHCP, LDAP, and related network services.
Perform security monitoring and assist with identifying and responding to potential security incidents.
Conduct daily backup operations, file archival, and data purging as required.
Create, modify, and delete user accounts in accordance with approved requests and procedures.
Perform system performance tuning, hardware upgrades, resource optimization, and lifecycle maintenance.
Diagnose and recover from hardware and software failures across multiple sites.
Maintain system documentation, configuration records, procedures, and technical guides.
Support implementation and documentation of cybersecurity program requirements and security controls.
Maintain facility video distribution systems and associated displays.
Develop simple automation and scripts using PowerShell, Bash, and Python.
Automate installation, configuration, provisioning, and system management using tools such as Ansible, Puppet, Terraform, and Chef.
Work with technologies such as Kubernetes, Rancher, Grafana, ACAS, and Cloud Security Gateway.
Support distributed systems and infrastructure technologies such as Hadoop, HBase/Accumulo, Spark, and Kafka as applicable.
Use Agile management and collaboration platforms such as Jira, Confluence, and GitLab.
Provide technical guidance and contribute to system documentation and knowledge-sharing materials.
Work directly with government customers and other technical stakeholders.
Support surge requirements, special projects, break/fix activities, and other mission requirements as assigned.
Required Qualifications
5+ years of professional experience administering, implementing, configuring, operating, and troubleshooting complex computer systems, servers, networks, and electronic IT infrastructure.
Strong experience administering Windows and Linux environments.
Experience with Red Hat Enterprise Linux, preferably RHEL 7/8 or later.
Experience with server-side technologies and networked computing environments.
Knowledge of U.S. Government computer networks, security requirements, and classified environments.
Working knowledge of DNS, DHCP, LDAP, Kickstart, networking, authentication services, and security monitoring.
Ability to troubleshoot complex hardware, operating system, application, and network problems.
Ability to create basic PowerShell, Bash, or Python scripts.
Experience with automation and Infrastructure-as-Code tools such as Ansible, Terraform, Puppet, or Chef.
Understanding of security concepts including SSH, public-key encryption, credentials, certificates, TLS, and data encryption.
Ability to work independently while effectively communicating with customers and technical teams.
Strong analytical, critical-thinking, troubleshooting, and problem-solving skills.
Excellent written and verbal communication skills.
Ability to dynamically prioritize multiple workloads and mission-critical deadlines.
Ability to document technical procedures clearly and accurately.
Willingness and ability to learn new technologies and systems.
Ability to work onsite in a secure facility and support changing mission requirements.
group id: RTX156f3f
Find ActioNet Inc on Social Media
Recruiters
user avatar
About Us
ActioNet, Inc., headquartered in Vienna, Virginia, is a CMMI®-DEV Level 4, CMMI®-SVC Level 4, ISO 20000, ISO 27001, ISO 9001, HDI-certified, woman-owned IT Solutions Provider with strong qualifications and expertise in Cloud-based Solutions, Cyber Security and Agile Software Engineering. As a Mission-Focused, Client-Centric and Results-Driven organization, ActioNet also follows the Project Management Institute (PMI) methodology as well as Information Technology Infrastructure Library (ITIL) standards. ActioNet has outstanding financial performance, as evidenced by our “Exceeds Customer Expectations” and the highest 5A1 Financial Rating from Dun & Bradstreet, a 92 out of 100 rating from Open Ratings, the 2014 National Capital Corporate Growth Award by the Association for Corporate Growth (ACG), and Washington Technology Top 100 2013-2019. ActioNet’s human capital leadership is recognized by being designated one of the Best Workplaces for Commuters by the Fairfax County Department of Transportation (FCDOT) 2013-2017 and Washington Post Top Workplaces 2014- 2019.

ActioNet Inc Jobs


Job Category
IT - Networking
Clearance Level
Top Secret/SCI
Employer
ActioNet Inc