Systems Administrator

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

Company Overview

ExeQut is a leader in consulting, delivering customized solutions and systems integration for enterprise applications, data & AI platforms, identity access and management, cybersecurity, and software development. We emphasize transparency, collaboration, and addressing core business challenges through a structured, agile development process. Our clients include federal civilian agencies, commercial enterprises in healthcare IT and financial services, and state/local government entities seeking complex technology solutions that deliver real impact. Partnering with clients from ideation to deployment, we ensure our solutions deliver long‑term value and streamline the user experience.

Role Overview

• The Systems Administrator is responsible for the administration, configuration, and maintenance of NLM's server infrastructure, computing systems, and network environments.
• This role ensures system availability, performance, and security in compliance with FISMA and NIH policies.

Key Responsibilities

• Administer, configure, and maintain Linux and Windows servers and operating systems.
• Set up and administer user accounts, disk quotas, permissions, and access controls.
• Monitor system performance and availability; identify and resolve performance issues.
• Track and manage problem reports using JIRA and ServiceNow ticketing systems.
• Create and maintain technical documentation using Confluence Wiki.
• Provide customer service and technical support to internal and external staff in plain language.
• Support secure remote access to cloud computing, storage, and service platforms.
• Administer distributed computing systems including batch queuing software.
• Implement and maintain FISMA‑compliant security practices: firewalls, intrusion detection systems, secure computing environments, disaster recovery.
• Provide security management to identify and resolve vulnerabilities in Windows and Linux systems.
• Conduct ongoing vulnerability assessments and ensure resolution within prescribed timelines.
• Support cloud computing infrastructure for production web services, HPC, and high‑throughput processing.
• Assist in implementation of computer security practices including Government FISMA policies.
• Manage on‑boarding/off‑boarding of system users; maintain system access rosters.
• Support Authority to Operate (ATO) maintenance activities.

Required Skills & Qualifications

• Bachelor's degree in information technology, Computer Science, or related field.
• Minimum 4–6 years of systems administration experience in a federal or enterprise environment.
• 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.

Technologies & Tools

• Linux (RHEL/CentOS/Ubuntu), Windows Server
• Apache HTTP Server, NGINX
• Tenable Security Center (vulnerability management)
• JIRA, ServiceNow (ticketing)
• Confluence Wiki (documentation)
• AWS, GCP, Azure (cloud administration)
• Firewalls, VPN, IDS/IPS systems
• Hadoop (distributed computing administration)
• Docker (basic container support)