Principal Linux System Administrator

SciTec, a wholly owned subsidiary of Firefly Aerospace, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense. For the past forty-five plus years, we have supported Department of Defense customers by developing innovative remote sensing algorithms, tools, and techniques to deliver world-class data exploitation capabilities supporting missile defense; intelligence, surveillance, & reconnaissance; space domain awareness; and aircraft survivability missions., SciTec has an immediate opportunity for a talented engineer to support our programs delivering Next-Generation Missile Warning software. This is a unique opportunity to join a business delivering core capabilities for National defense. You will work within a fast-paced team delivering end-to-end software processing of Overhead Persistent InfraRed (OPIR) sensor data for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence., * Serve as the technical team lead for the System Administrator group, providing mentorship, guidance, and oversight to ensure consistent operational excellence

• Install, configure, and maintain Red Hat Enterprise Linux (RHEL) workstations and servers in accordance with defined baselines
• Implement and maintain system security, hardening, integrity monitoring, backups, and auditing i.e. STIG, SCAP
• Perform patch and package management, including installation and maintenance of third-party software i.e. IDEs, Pypi, Docker registry,
• Monitor system performance, availability, and health; troubleshoot and resolve hardware and software issues,
• Support and maintain virtualized and workstation environments (e.g., VMware)
• Install, configure, and troubleshoot servers, switches, and storage systems
• Configure and support networking in mixed Linux and Windows environments
• Document system configurations, procedures, and changes in accordance with policies and requirements
• Collaborate effectively with team members, security personnel, and end users
• Provide technical support and respond to operational issues through resolution
• Participate in continuous improvement, automation, and modernization efforts
• Perform other duties as assigned

We are seeking a skilled Linux System Administrator to support the installation, configuration, security, and ongoing operation of Linux- and Windows-based systems in a secure, mission-focused environment. The ideal candidate is hands-on, detail-oriented, and comfortable working across infrastructure, security, and operations teams., * 8+ years of professional experience administering Linux systems (RHEL preferred)

• Experience with:

• Installation and configuration of RHEL 8 servers and workstations
• System security, hardening (STIG), auditing, and backup strategies
• Patch and package management
• Virtualization technologies including VMware, Podman, Docker, Image registries, Red Hat Openshift/Kubernetes
• Hardware and software troubleshooting
• Networking in heterogeneous (Linux/Windows) environments

Strong oral and written communication skills

Detail oriented

Proven ability to work collaboratively in a team environment

Self-motivated, detail-oriented, and able to own issues through completion

Ability to obtain and maintain a Secret security clearance Candidates who have any of the following skills will be preferred:

• Bachelor’s degree in Information Technology, Network Engineering, Computer Engineering, or a related technical field

• Experience with:

• Dell servers, switches, and SAN solutions
• VMware vSphere
• Root Cause Analysis and documenting findings
• DISA SCAP Compliance Checker and DISA STIG implementation
• RHEL 8/9/10
• NAS and/or SAN configuration and maintenance
• Configuration management, Automation, Scripting (Ansible, Bash, Python)
• Git/GitLab and CI/CD pipelines
• Containers and orchestration (Podman/Docker, RHOCP/Kubernetes, minikube, image registries)

Relevant certifications are preferred but not required i.e.

• Security+
• RHCSA / RHCE / LPIC-1

SciTec offers a highly competitive salary and benefits package, including:

• 4% Safe Harbor 401(k) match
• 100% company paid HSA Medical insurance, with a choice of 2 buy-up options
• 80% company paid Dental insurance
• 100% company paid Vision insurance
• 100% company paid Life insurance
• 100% company paid Long-term Disability insurance
• Short-term Disability insurance
• Annual Profit-Sharing Plan
• Discretionary Performance Bonus
• Paid Parental Leave
• Generous Paid Time Off, including Holiday, Vacation, and Sick Pay
• Flexible work hours

The pay range for this position is $149,000 - $184,000 / year. SciTec considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. This is not a guarantee of compensation.

SciTec is proud to be an Equal Opportunity employer. VET/Disabled.