System Administrator (Linux)

Crossflow Technologies•Huntsville, AL

3d•Onsite

About The Position

Crossflow Technologies is seeking applicants for an experienced Systems Administrator providing direct-user support in both Linux and Windows environments. The selected applicant will provide full systems administration and user support to local and remote users performing business administration and advanced software development environments. The selected candidate will manage users, groups and accounts; administer the company domain, apply updates, patches, STIGs and security controls; troubleshoot and repair software and hardware problems; and work with a ticketing system. They will work with employees to develop technical solutions, and engage in technical solutions to interesting technology problems.

Requirements

Minimum 5-8 years Systems Administration experience
Experience with Gitlab
Must have the ability to build Linux systems, both physical and virtual
Must have experience with RHEL System Administration
Supports networks and Cisco IOS and devices
Must have at least one Linux certification e.g. Linux+, LPIC, Red Hat Certified System Administrator (RHCSA), Red Hat Certified Engineer (RHCE)
Candidates must comply with the experience, training, and certification requirements for DoD 8570 IAT level II employment (e.g., Security+ CE or higher)
Bachelor's degree from an ABET-accredited university
Active DoD Secret Clearance

Nice To Haves

Experience working with VMWare ESXi virtualized environments
Knowledge of RHEL 8
Scripting with bash, python, etc.
Experience with Ansible, HBSS, RSA server/client, and various techniques for both development and operation environments
Experience with networks and Cisco IOS and devices
Previous experience with the Missile Defense Agency, Missile Defense System, elements, or components

Responsibilities

Manage users, groups and accounts
Administer the company domain
Apply updates, patches, STIGs and security controls
Troubleshoot and repair software and hardware problems
Work with a ticketing system
Develop technical solutions for employees
Engage in technical solutions to interesting technology problems
Install, troubleshoot, repair, operate, and maintain computers and network equipment
Maintain operation of Linux computer systems, including coordination with other system and network administration staff and program teams
Support networks and Cisco IOS and devices
Configure networking and troubleshoot network issues via Cisco command line
Perform network and firewall engineering, monitoring, and administration functions as required
Provide initial analysis and troubleshooting on issues identified with network monitoring tools
Provide troubleshooting support to end users on the network as well as other general networking tasks
Conduct day-to-day system administration of the hardware and software for a modeling and simulation (M&S) system
Provide hands-on system administration support, system maintenance and operations support
Support building, configuring, and troubleshooting software and hardware enhancements, application deployments and infrastructure up-grades
Support diagnosis and correct computer, server, and network system issues
Provide continuous status information to ensure lab specifications
Respond to technical issues as they arise
Ensure consistent technical direction and understanding between government and contractor staff
Assist in conduct of top-level IT architecture trades and development
Ensure consistent architectural IT application across the M&S products
Ensure consistent IT processes, practices, and documentation across the M&S system
Provide daily support for development and operation assets
Perform other IT duties as assigned
Data collection, documentation, and reporting on all the above responsibilities as required
Perform other IT duties as assigned to realize mission success