Linux System Administrator

Linux System Administrator

Location: Arlington, VA

Must have Public Trust Security Clearance

Node is supporting a U.S. Government customer to obtain development, operations, and maintenance (O&M), logistics, security, and deployment support services necessary to operate and sustain the customer’s Lab environments. Activities must be carried out at the highest levels of service and availability.

Node is seeking a Linux Administrator with some cloud experience to support this effort.

Responsibilities Include:

• System Administration: Oversee the day-to-day operations of the customer’s lab environments including installation, configuration, and maintenance of Linux operating systems (e.g., CentOS, Ubuntu, Red Hat).

• Performance Monitoring and Optimization: Monitor system performance, troubleshoot issues, and optimize system resources to ensure maximum uptime and efficiency. Implement proactive measures to identify and address potential bottlenecks or performance degradation.

• Security Management: Implement and maintain security measures to protect systems from vulnerabilities, unauthorized access, and malware threats.

• Backup and Disaster Recovery: Develop and maintain backup and disaster recovery plans for Linux systems.

• Patch Management: Manage the patching process for Linux servers, including scheduling, testing, and deploying software updates and security patches in a timely manner. Ensure compliance with patch management policies and procedures.

• Automation and Scripting: Develop automation scripts and tools using shell scripting (e.g., Bash), Python, or other scripting languages to streamline system administration tasks, automate repetitive processes, and improve operational efficiency.

• Collaboration: Collaborate with cross-functional teams including key stakeholders to support project initiatives and resolve technical issues.

• Documentation: Document system configurations, procedures, and troubleshooting steps for knowledge-sharing and training purposes.

• Technical Support: Provide technical support and troubleshooting assistance to internal users and teams regarding Linux-related issues. Diagnose problems and implement solutions in a timely manner to minimize downtime and disruptions.

Requirements

Required Skills:

• U.S. Citizenship

• Must be able to obtain DHS Suitability and obtain a TS/SCI clearance

• 6+ years of directly relevant experience as a Linux System Administrator.

• Proficiency in managing and maintaining Linux servers (e.g., Red Hat, CentOS, Ubuntu).

• Strong understanding of Linux file systems, permissions, and security.

• Hands-on experience with AWS services such as EC2, S3, RDS, VPC, IAM, CloudFormation, and Lambda.

• Knowledge of networking concepts and protocols (TCP/IP, DNS, VPN, etc.).

• Experience with network troubleshooting and security (firewalls, security groups, NACLs).

Desired Skills:

• Experience with Terraform

• Experience with shell scripting (Bash, Python, etc.) for automation and task management.

• Excellent problem-solving and analytical skills.

• Strong communication and interpersonal skills.

• Knowledge of U.S. Government IA policies, procedures, standards, guidelines, and objectives.

Required Education:

• Bachelor’s degree in Information Security, Cyber Engineering, or a related discipline is required.

Desired Certifications:

• Information Security and IT certifications: Splunk, AWS, Cisco, Red Hat, etc.

Company Overview:

Node. Digital is an independent Digital Automation & Cognitive Engineering company that integrates best-of-breed technologies to accelerate business impact.

Our Core Values help us in our mission. They include:

OUR CORE VALUES

Identifying the~RIGHT PEOPLE~and developing them to their full capabilities

Our customer’s “Mission” is our “Mission”. Our~MISSION FIRST~approach is designed to keep our customers fully engaged while becoming their trusted partner

We believe in~SIMPLIFYING~complex problems with a relentless focus on agile delivery excellence

Our mantra is “~Simple*Secure*Speed~” in the delivery of innovative services and solution

Benefits

We are proud to offer competitive compensation and benefits packages to include:

• Medical
• Dental
• Vision
• Basic Life
• Long-Term Disability
• Health Saving Account
• 401K
• Three weeks of PTO
• 10 Paid Holidays
• Pre-Approved Online Training