Senior Systems Administrator

Senior Systems Administrator

Increase your chances of an interview by reading the following overview of this role before making an application.

Job Locations : US-CO-Aurora

Job ID : 2024-3255

Category : Information Technology

Type : Full Time

NetImpact Strategies is actively seeking a highly skilled and experienced Senior System Administrator to join our onsite team in Aurora, CO.

As a System Administrator, you will be responsible for managing and maintaining server operating systems, ensuring the security, integrity, and availability of infrastructure platforms.

If you have a strong background in system administration, excellent problem-solving skills, and the ability to work effectively in a team environment, we encourage you to apply for this position.

Responsibilities

• Manage and troubleshoot new or existing server operating systems for related infrastructure software and hardware.
• Administer day-to-day sustainment, integrity, security, and availability of infrastructure platforms.
• Execute capacity analysis, maintain the security posture of infrastructure systems, and monitor performance.
• Create standard operating procedures, maintenance guides, and knowledge base articles to ensure proper documentation for operational upkeep.
• Perform platform maintenance upgrades to ensure a proper security and operational posture.
• Assist architecture and engineering with evaluating, making recommendations, and testing infrastructure hardware and software products.
• Provide support for Virtual Machines (VM).
• Execute Security Technical Implementation Guide (STIG) compliance.
• Create, deploy, and report on Group Policy Objects (GPO).
• Upgrade / update server and workstation OS to the current version.
• Upgrade / update applications (e.g., Med365 / M365, Adobe, Java) including testing and deploying new images and troubleshooting.
• Serve as problem management, providing workarounds and determining root cause analysis related to patching and vulnerability management.
• Provide support for management tools such as Microsoft Endpoint Configuration Manager.
• Provide support for system backup and restoration operations.
• Assist with developing, maintaining, and employing documented Standard Operating Procedures (SOPs) for backup, restoration, and system replication operations, ensuring they align with ITIL and industry best practices.
• Implement processes to support and assist in ensuring system and infrastructure backups are completed as scheduled.
• Follow Enterprise directives to periodically test backup and restore operations where applicable.
• Aid in documenting all backup and restoration operations in logs for auditing purposes.
• Assist and make recommendations to improve processes, tools, and / or procedures for backup efficiency and reliability.
• Coordinate to resolve any backup / restore process issues.
• Ensure all backups and removable media are encrypted according to Federal Information Processing Standards (FIPS) or other DoD / Federal requirements.
• Properly label and store backups and removable media in fire-resistant vaults for operational (on-site) and historical (off-site) storage according to policy.
• Configure, maintain, and update Avaya Application Server (Red Hat Linux OS).
• Perform technical duties related to VOIP, IX Messaging, ACD, and custom Call Center applications, including performing or assigning adds, moves, and changes related to endpoints.
• Provide knowledge and expertise in Red Hat Linux OS.
• Monitor daily performance alarms, errors, and outage trends.
• Review product delivery, verify hand receipts / ownership responsibilities, and ensure diagrams, sustainment, and operational documentation are available to support staff.
• Track pertinent system information, architecture, and performance metrics.
• Submit circuit requests, and perform all circuit sustainment actions (e.g., Toll-Free Number, and DSN activities).
• Define and create Avaya system permissions and skill level access.
• Update and document VOIP system structure, VLAN Configuration, File Server settings, Avaya Ports, Protocols, and Services Management.
• Maintain credentials to access hosted environments.
• Participate in project, leadership, and other telecommunication-related meetings.

Qualifications

Required :

• One or more of the following certifications (IAT II) : CCNA-Security, CySA+, GICSP, GSEC, Security+, CECNDSS.
• Six (6) years of progressive experience demonstrating the required proficiency.
• Bachelor's degree and / or equivalency.
• Proven expertise in system administration, including server operating systems management and troubleshooting.

J-18808-Ljbffr