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L3Harris Technologies

Global defense contractor delivering aerospace tech

Network Planning Engineer

Network Engineering & AdministrationPosted on Nov 11
Full-timeSan Antonio, TX, USANo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree and a minimum of 4 years of prior related experience, or a graduate degree or equivalent with 2 years of prior related experience; in lieu of a degree, at least 6 years of prior networking troubleshooting experience.
  • An active Top Secret clearance with eligibility for Sensitive Compartmented Information (SCI).
  • Security+ (Sec+) certification is required.
  • Ability to perform tasks under minimal supervision and make independent decisions in high-pressure situations.
  • Strong background managing and maintaining Microsoft Server environments, including network operations center servers and virtual server environments.
  • Familiarity with standard concepts, practices, and procedures for managing servers and virtual environments.
  • Ability to observe and interpret computer and network system messages and address incidents quickly.

Responsibilities

  • Provide network support services for a Department of Defense Senior Leader Network, exercising independent judgment to capture corrective actions and resolve incidents promptly.
  • Analyze radio frequency usage and user priorities, optimize system performance, and assist with mission planning and radio frequency handovers.
  • Manage wide area network routers, switches, and other networking configurations.
  • Use Defense Information Systems Network data flows and coordinate applicable actions and issues with the Defense Information Systems Agency.
  • Resolve network and connectivity issues to support Department of Defense Senior Leaders.
  • Assist with subscriber frequency planning based on the approved Discovery Frequency of Day for transient mobile activities.
  • During missions, monitor radio frequency connections and links, and provide updates or advice when appropriate.
  • Monitor radios through graphical user interfaces, including communications security, frequencies, mission mode, discoveries, mission records, and coordinated changes.
  • Manage satellite communications radio frequency resources by monitoring frequencies, power control, and handoffs to optimize connectivity.
  • After missions, review performance trends; provide communications status reports, daily activity reports, and radio frequency performance statistics; and maintain the Master Station Log.
  • Analyze post-mission performance against requirements, establish trends, and optimize future missions.
  • Operate computer network equipment to keep network systems available to subscribers 24 hours a day, seven days a week, year-round.
  • Maintain proficiency through prescribed network training guidelines.
  • Manage and coordinate radio frequency equipment Authorized Service Interruptions.
  • Update troubleshooting guides based on lessons learned.
  • Operate and maintain databases and analyze network capabilities to resolve network incidents and restore service promptly.
  • Provide Tier I and Tier II engineering support to subscriber aircraft on live missions and serve as an entry point for radio frequency field support and corrective maintenance.
  • Provide first-level and, when possible, second-level terrestrial network connectivity support during high-level Department of Defense missions.
  • Before missions, monitor radio frequency status and identify opportunities to improve performance.
  • Monitor daily system performance and analyze root causes and opportunities for system improvement.
  • Monitor and respond to system events, alerts, and logs for incident response, troubleshooting, and archiving.
  • Monitor system resource utilization and allocation to maintain satisfactory network response for customers.
  • Monitor network performance, including node, interface, processor, memory, and volume status.
  • Maintain and troubleshoot communications security and transmission security equipment and keying material issues.
  • Configure frequencies at individual radio frequency sites before missions.
  • Ensure radio frequency equipment readiness, including built-in testing, antenna pointing and polarization, and mission recording.
  • Perform preventative maintenance by analyzing and troubleshooting computer and network system health and status, identifying potential problems, and developing solutions before outages using diagnostic tools.

About the Company

L3Harris Technologies

Global defense contractor delivering aerospace tech

L3Harris Technologies provides advanced aerospace, defense, and space systems for governments and commercial customers. Its products include sensors, communications, and propulsion—such as tactical radios, night-vision gear, satellite payloads, missile defense, and space propulsion—delivered as integrated systems for operations across air, land, sea, space, and cyber domains. The company blends legacy technologies from two joining giants with newer capabilities, faster acquisition cycles, and a focus on missiles, space, and resilient communications to field solutions quickly. Its goal is to be a trusted, scale-ready provider of next‑generation defense and intelligence capabilities for national security and related customers.

Company size
10,001+
Company stage
IPO
Headquarters
Melbourne, FL
Founded
1895

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