> Markdown version of [/jobs/ext/1408854-systems-administrator](https://www.wearedevelopers.com/jobs/ext/1408854-systems-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator - **Company:** RTL Networks - **Location:** San Diego, CA, United States - **Experience:** Experienced - **Salary:** $90,000.0 - $125,000.0 - **Contract:** Permanent contract - **Skills:** Bluetooth, Command-Line Interface, Software as a Service, Cloud Computing, Cloud Computing Security, Cyber Security, Computer Networks, Dynamic Host Configuration Protocol, File Systems, Domain Name System (DNS), Infrastructure as a Service (IaaS), Traceroute, Virtual Private Networks (VPN), OSI Models, Local Area Networks, Network Security, Network Architecture, Networking Basics, Network Protocols, Nslookup, Platform as a Service (PAAS), Radio-Frequency Identification, Performance Tuning, Ping (Networking Utility), Remote Access Technology, Cloud Services, TCP/IP, Virtual Machines, Virtualization Technology, Wide Area Networks, Wi-Fi Technology, Diagnostic Tools, Firewalls (Computer Science), Information Technology - **Published:** July 23, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9050792/systems-administrator ## About the Role * Bachelor's degree in Computer Science or equivalent. * Four (4) years of system management experience. * Must meet DoD 8570 Information Assurance Workforce (IAWF) criteria or Information Assurance Technical (IAT) Level II certification at time of hire (i.e., Security+). Physical Demands: * Must be able to lift up to 15 pounds. * Must be able to stand and walk for prolonged amounts of time. * Must be able to twist, bend and squat periodically. SECURITY CLEARANCE REQUIREMENTS: Must currently hold a security clearance at the Secret level. US Citizenship is a requirement for clearance at this location. NOTE: * The applicant selected for this position must have and be able to maintain an Active Security Clearance. * U.S. Citizenship required. * Applicants must have a valid driver's license for this position and will be subject to verification. * Chosen applicants must pass pre-employment drug screening, credit review, and a criminal background check. ## Description Summary: RTL Networks is seeking a Secret cleared Systems Administrator to support the US Navy in San Diego, CA. Primary Responsibilities: Essential skills, knowledge and responsibilities of the Systems Administrator include, but are not limited to: Network Infrastructure: * Computer networking concepts, protocols, and security methodologies. * Local Area Network/Wide Area Network (LAN/WAN) architecture and pathways. * Bandwidth management principles and techniques. * Network traffic flow (TCP/IP and OSI model). * Performance tuning tools and techniques. * Remote access technologies. * Virtual Private Network (VPN) security. * Network protocols (TCP/IP, Dynamic Host Configuration Protocol (DHCP), Domain Name System (DNS), directory services). * Common network tools (e.g., ping, traceroute, nslookup). * File system implementations (e.g., New Technology File * Virtualization technologies and virtual machine management. Security Expertise: * IT security principles and methods (e.g., firewalls, demilitarized zones (DMZs), encryption). * Network security architecture concepts (topology, protocols, defense-in depth). * Cybersecurity principles, threats, and vulnerabilities. * National and international cybersecurity laws, regulations, and policies. * Organizational IT user security policies (e.g., account management, access. control). * Data security standards (PII, PCI, PHI). * System administration, network, and operating system hardening techniques. * Software-based computer protection tools (e.g., firewalls, antivirus antispyware). * Knowledge of transmission records (Bluetooth, Radio Frequency * Identification (RFID), Infrared (IR) transmission, Wi-Fi, etc.) and jamming techniques. System Administration: * Server and client operating systems. * Systems administration concepts and best practices. * Enterprise IT architecture. * System/server diagnostic tools and fault identification. * Operating system command line/prompt (e.g., ipconfig, netstat, dir, nbtstat). * System maintenance procedures (cleaning, disk checks, reboots, backups, etc.). Cloud Computing: * Cloud computing service models (SaaS, IaaS, PaaS). * Cloud computing deployment models (private, public, hybrid). * Cloud security strategy and architecture. * Migrating workloads between cloud service models. ## Related Videos - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Building a Cross-Platform BLE Client with Kotlin Multiplatform and Kable](https://www.wearedevelopers.com/videos/100250-building-a-cross-platform-ble-client-with-kotlin-multiplatform-and-kable) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [Prototyping with Hardware and the Web](https://www.wearedevelopers.com/videos/651-prototyping-with-hardware-and-the-web) ## Related Articles - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)