JOB DETAILS

Systems Administrator

CompanyRTL Networks Inc
LocationSan Diego
Work ModeOn Site
PostedMay 20, 2026
About The Company
Founded in 2002, RTL Networks, Inc. is an energetic company which successfully brings together experienced engineers, proven products, methodologies and a wide array of Professional Service offerings to assist its customers in finding and implementing the correct choices for their business needs. The success of RTL Networks, Inc. can be measured not only by its long list of satisfied customers but also by the numerous awards and recognition received from customers, the community, the SBA as well as leading publications such as Inc Magazine and others. RTL was most recently named 2017 SDVOSB of the Year by the USDA Forest Service. RTL is committed to providing its customers with quality deliverables, professional, consistent and reliable interactions, ethical behavior, honest communications, highly certified and experienced consultants. RTL engineers and sales staff strive to maintain rigid certifications and standards demanded by the industry’s top manufacturers.
About the Role

Description

  

Position Title: Systems Administrator


Location: San Diego, CA

Status: Full-time / On-site

Required Clearance: Secret

Required Certification(s): IAT Level II (Security+, CySA+, etc.)


About Us: RTL Networks, Inc. is a rapidly growing company primarily focused on providing information technology (IT) support services and personnel to various commercial and government customers for extended-term contracts. By providing a wide array of professional services and products, we help our customers leverage technology and operate confidently in their technology environments to ensure resource predictability, security, and reliability to meet business objectives.


Compensation: The annual salary range for this position is $90,000 - $125,000. Please note that the salary information is a general guideline only. RTL Networks considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer. 


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.

Qualifications:

  • 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.

We are an Equal Opportunity Employer, Females/Minority/Veterans/Disabled/Sexual Orientation/Gender Identity/Religion/National Origin


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Key Skills
Network InfrastructureSecurity ExpertiseSystem AdministrationCloud ComputingCybersecurityOperating SystemsVirtualizationData SecurityNetwork ProtocolsPerformance TuningRemote Access TechnologiesFile System ImplementationsIT Security PrinciplesAccount ManagementAccess ControlDiagnostic Tools
Categories
TechnologyGovernment & Public SectorSecurity & SafetyData & AnalyticsEngineering
Job Information
📋Core Responsibilities
The Systems Administrator will support the US Navy by managing network infrastructure, ensuring security, and maintaining system administration best practices. Responsibilities include managing LAN/WAN architecture, implementing cybersecurity measures, and overseeing cloud computing strategies.
📋Job Type
full time
💰Salary Range
$90,000 - $125,000
📊Experience Level
2-5
💼Company Size
65
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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