Systems Administrator - Linux/Windows, Cloud & Security

exequt MENA; Washington (District of Columbia); On-site; USD 90,000 - 120,000; Full time

Job summary

ExeQut is seeking a Systems Administrator in Washington, DC to manage Linux/Windows servers, cloud platforms, and security controls within a federal/enterprise setting. You will ensure system availability, perform risk-based vulnerability management, and align with FISMA policies.

Responsibilities include configuring users, monitoring performance, handling tickets (JIRA/ServiceNow), and documenting procedures. A BS in IT/CS and 4–6 years of relevant experience are expected.

Qualifications

• Bachelor's degree in information technology, computer science, or related field.
• 4–6 years of systems administration experience in federal or enterprise environments.
• Expert-level Linux (RHEL/CentOS/Ubuntu) and Windows Server administration.
• Experience with cloud platforms (AWS, GCP, Azure) and IAM administration.
• Strong knowledge of FISMA, NIST SP 800-53, and NIH security requirements.
• Experience with firewall management, VPN, and intrusion detection systems.
• Familiarity with vulnerability scanning tools (Tenable).
• Experience with ticketing systems (JIRA, ServiceNow).
• Knowledge of backup, disaster recovery, and business continuity practices.
• Security+ or equivalent certification preferred.

Responsibilities

• Administer, configure, and maintain Linux and Windows servers and OS.
• Set up and administer user accounts, quotas, permissions, and access controls.
• Monitor performance and availability; identify and resolve issues.
• Track and manage problem reports using JIRA and ServiceNow.
• Create and maintain technical documentation using Confluence Wiki.
• Provide customer service and technical support to staff.
• Support secure remote access to cloud computing, storage, and services.
• Administer distributed computing systems including batch queuing software.
• Implement and maintain FISMA-compliant security practices: firewalls, IDS, DR.
• Provide security management to identify and resolve vulnerabilities.
• Conduct ongoing vulnerability assessments and ensure timely resolutions.
• Support cloud infrastructure for production web services, HPC, and high-throughput processing.
• Assist in implementation of Government FISMA policies.
• Manage onboarding/offboarding of system users; maintain access rosters.
• Support Authority to Operate (ATO) maintenance activities.

Skills

Linux administration (RHEL/CentOS/UBun

Windows Server administration

Cloud IAM administration (AWS/GCP/AZ)

FISMA/NIST/NIH security knowledge

Vulnerability assessment

Ticketing systems (JIRA/ServiceNow)

Education

Bachelor's degree in IT/CS or related

Tools

Apache HTTP Server

NGINX

Tenable Security Center

JIRA

ServiceNow

Confluence Wiki

AWS

GCP

Azure

Firewalls/VPN/IDS/IPS

Hadoop

Docker

Job description

ExeQut is seeking a Systems Administrator in Washington, DC to manage Linux/Windows servers, cloud platforms, and security controls within a federal/enterprise setting. You will ensure system availability, perform risk-based vulnerability management, and align with FISMA policies.

Responsibilities include configuring users, monitoring performance, handling tickets (JIRA/ServiceNow), and documenting procedures. A BS in IT/CS and 4–6 years of relevant experience are expected.