System Administrator

Job Description

Job Description

Primary Responsibilities:

• Monitor and maintain an enterprise services environment consisting of Windows servers, Red Hat Enterprise Linux servers, and network appliances.
• Assist mission partners with mobile device VPN connectivity debugging, user account and device management, and troubleshooting system/service access issues.
• Perform configuration updates and maintenance activities to patch, secure, and maintain systems.
• Respond to, and help analyze, issues that degrade system or network performance to minimize downtime.
• Address moderately complex technical issues using internal SOPs and collaboration with team members.
• Help create and update documentation for common issues and processes to contribute to the team's knowledge base.
• Provide input on ways to optimize processes and improve the efficiency of the environment.
• Support occasional after hours maintenance and be available for 2-hour onsite call back support for critical issues.

Basic Qualifications:

• Bachelor's degree and 2 years of related experience or Master's degree with less than 2 years of related experience. Additional experience, education and training may be considered in lieu of degree.
• Active DoD SECRET clearance.
• DoD-8570 IAT Level 2 certification (Security+ CE) within 6 months of hire date.
• Experience troubleshooting issues with software applications, networking, Windows OS or Linux OS.
• Experience performing system administration tasks - installing, maintaining, monitoring, recovering, rebuilding, upgrading, patching.
• Experience researching technical solutions beyond internal SOPs.
• Willingness to work with multiple technologies and be open to learning new technologies.
• Motivated self-starter with strong work ethic and ability to work with minimal supervision in the fulfillment of daily operations and sustainment activities.
• Ability to demonstrate good judgement, professionalism, and communicate clearly (verbal and written).
• Strong problem solving, critical thinking, and analytical skills.

Desired Qualifications (not required, but a huge plus):

• Experience configuring and maintaining network devices - switches, routers, firewalls, VPNs.
• Experience with scripting or automation tools.
• Experience with VMWare - ESX/ESXi, vCenter, vSphere.
• Experience with AD, SCCM, SQL, MySQL, SELinux, DNS.
• Knowledge of networking concepts such as OSI Model, LAN/WAN, IPv4/IPv6, subnetting and VLANs.
• Experience maintaining systems and services in an air-gapped environment.
• Knowledge of security policies such as DISA STIGS and general vulnerabilities management.
• Certifications with major system vendors such as Microsoft, Red Hat, VMware, Cisco, Juniper, or Aruba

Marathon TS provides a full range of professional services for clients that require support from professionals with specialized skills and experience in a specific technical area or subject matter. Marathon TS also provides IT solutions, including strategy, operations, transformation and mission support.

Company Description

Marathon TS provides a full range of professional services for clients that require support from professionals with specialized skills and experience in a specific technical area or subject matter. Marathon TS also provides IT solutions, including strategy, operations, transformation and mission support.