Senior Staff Linux System Administrator
About The Position
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. 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.
Requirements
- 4-6 years of professional experience administering Linux systems (RHEL preferred)
- Experience with Installation and configuration of RHEL 8 servers and workstations
- Experience with System security, hardening (STIG), auditing, and backup strategies
- Experience with Patch and package management
- Experience with Virtualization technologies including VMware, Podman, Docker, Image registries, Red Hat Openshift/Kubernetes
- Experience with Hardware and software troubleshooting
- Experience with 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
Nice To Haves
- Bachelor’s degree in Information Technology, Network Engineering, Computer Engineering, or a related technical field
- Experience with Dell servers, switches, and SAN solutions
- Experience with VMware vSphere
- Experience with Root Cause Analysis and documenting findings
- Experience with DISA SCAP Compliance Checker and DISA STIG implementation
- Experience with RHEL 8/9/10
- Experience with NAS and/or SAN configuration and maintenance
- Experience with Configuration management, Automation, Scripting (Ansible, Bash, Python)
- Experience with Git/GitLab and CI/CD pipelines
- Experience with Containers and orchestration (Podman/Docker, RHOCP/Kubernetes, minikube, image registries)
- Relevant certifications are preferred but not required i.e. Security+
- Relevant certifications are preferred but not required i.e. RHCSA / RHCE / LPIC-1
Responsibilities
- 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
Benefits
- 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
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What This Job Offers
Job Type
Full-time
Career Level
Senior
