Junior Linux Admin Jobs in Spring Valley, CA (NOW HIRING)

Job Summary:
Innoflight is one of San Diego’s fastest-growing Aerospace and Defense innovators, focused on engineering the future of space technology. The IT Systems Administrator III will lead advanced system administration, security enforcement, and infrastructure operations, ensuring secure and reliable IT environments while mentoring junior team members and collaborating across teams.
Responsibilities:
• Administer Systems & Infrastructure: Design, configure, optimize, and maintain enterprise servers, virtualization platforms, storage systems, and network infrastructure.
• Enforce Security & Compliance: Implement cybersecurity controls including patching, endpoint protection, vulnerability remediation, and compliance with frameworks such as CMMC and NIST.
• Resolve Advanced Technical Issues: Troubleshoot and resolve escalated system, network, and application issues to maintain performance and uptime.
• Support Secure Environments: Manage systems within access-controlled or classified environments, ensuring adherence to strict security protocols and clearance requirements.
• Lead IT Projects: Plan and execute infrastructure upgrades, system migrations, automation initiatives, and performance improvements.
• Manage System Performance: Monitor systems, analyze performance metrics, and implement proactive optimizations.
• Support Disaster Recovery: Participate in backup management, restoration testing, and disaster recovery planning and execution.
• Maintain System Operations: Oversee patching, maintenance windows, firmware updates, and configuration management.
• Administer Network & Security Services: Support firewalls, VPNs, intrusion detection/prevention systems, DNS, DHCP, and other core network services.
• Manage Software Licensing: Track, maintain, and ensure compliance with software licensing agreements.
• Document Systems & Policies: Develop and maintain system configurations, diagrams, procedures, and security documentation.
• Support Audits & Compliance: Assist with audits and continuous improvement efforts related to security and regulatory standards.
• Provide On-Call Support: Participate in on-call rotations, scheduled outages, and incident response activities.
• Mentor Junior Staff: Provide technical leadership, training, and guidance to junior IT team members.
• Research & Recommend Improvements: Evaluate new technologies and best practices to enhance system efficiency, reliability, and security.
• Collaborate Across Teams: Partner with Engineering, Cybersecurity, and business teams to align IT operations with organizational goals.
• Report Project Status: Provide updates on ongoing IT projects and operational initiatives.
• Perform Other Duties: Complete additional responsibilities as assigned.
Qualifications:
Required:
• Bachelor’s degree in Computer Science, Information Technology, or a related field
• 5 or more years of experience in system administration, networking, and security operations
• Strong experience with Windows/Linux server environments, Active Directory, virtualization platforms (VMware, Hyper-V), and enterprise networking
• Solid understanding of network security, including firewalls, VPNs, intrusion detection/prevention systems, and secure configuration practices
• Experience with cloud platforms such as Azure and AWS, along with identity and access management systems
• Working knowledge of security frameworks such as NIST, CMMC, ISO, or similar compliance standards
• Ability to troubleshoot complex infrastructure, application, and network issues and implement effective long-term solutions
• Ability to obtain and maintain a U.S. Security Clearance and work in secure or classified environments
Preferred:
• Experience with scripting and automation tools such as PowerShell or Python
• Familiarity with IT monitoring tools, ticketing systems, and remote support platforms
• Strong communication skills with the ability to document systems, procedures, and technical processes clearly
• Relevant certifications such as Security+, Azure Administrator, CCNA, or equivalent
Company:
Innoflight is a non-traditional defense contractor and provider of cyber-secure avionics services. Founded in 2004, the company is headquartered in San Diego, USA, with a team of 51-200 employees. The company is currently Growth Stage.