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L3Harris Technologies

Global defense contractor delivering aerospace tech

Senior Specialist, Systems Engineer - Systems Engineering

Full-TimeUpdated on 10/23/2026
$106.5k - $197.5k+ 401(k) match
Senior
Bachelor's, Master's
Lynchburg, VA, USA
In PersonThe role is located in Lynchburg, Virginia.
IT OperationsSystem Administration

About the job

Requirements
  • A bachelor's degree and at least six years of prior relevant experience, a graduate degree and at least four years of prior related experience, or at least ten years of prior related experience in lieu of a degree.
  • At least two years of experience working with radio frequency, system design, networking, configuration, or system programming.
  • Experience with virtualization platforms is preferred.
  • Experience with server administration is preferred.
  • Experience with Windows operating systems is preferred.
  • Experience with Red Hat Enterprise Linux or other Linux operating systems is preferred.
  • Experience with networking and cybersecurity technologies is preferred.
  • Tier III/IV troubleshooting skills are a plus.
  • Ability to take on tasks with little to no oversight is preferred.
  • Scripting knowledge and artificial intelligence skills are preferred.
  • Professional certifications such as MCSA, MCSE, VCA6/VCP6, LPIC, Security+, or Network+ are preferred.
  • Ability to manage multiple concurrent project tasks and prioritize them appropriately is preferred.
  • Ability to communicate issues clearly and concisely in less technical terms to management and business stakeholders is preferred.
  • Leadership skills including customer focus, change management, teamwork, diversity, and integrity are preferred.
  • Ability to set priorities and manage to deadlines is preferred.
  • Troubleshooting, communication, and customer service skills are preferred.
  • Ability to proactively resolve problems is preferred.
  • Mentoring capabilities are preferred.
  • Practical hands-on field experience in radio frequency/Land Mobile Radio system design, staging, configuration, and implementation of complex radio systems is preferred.
Responsibilities
  • Provide Tier 3 and Tier 4 technical support to internal teams and external customers.
  • Identify field issues, isolate root causes, and initiate corrective actions for fielded systems.
  • Collaborate with system engineers, program managers, and field engineers on ongoing infrastructure activities.
  • Escalate issues and interface with vendor technical assistance centers to resolve vendor software problems.
  • Apply cybersecurity policies and best practices to support the integrity of Land Mobile Radio system products.
  • Perform standard cybersecurity operations to maintain the security posture of internal and third-party solutions for mission-critical communications customers.
  • Partner with product engineering teams to identify, assess, and address vulnerabilities in company hardware and software.
  • Support the reliability, security, and performance of mission-critical communications systems.
  • Implement, support, define, and design standardized configurations for VMware, Windows, and Linux platforms used within the Land Mobile Radio system.
  • Work with and support internally developed Land Mobile Radio applications and hardware.
  • Participate in discussions with customers, consultants, vendors, subcontractors, and other company personnel as necessary to complete contractual commitments.
Desired Qualifications
  • Experience with virtualization platforms.
  • Experience with server administration.
  • Experience with Windows operating systems.
  • Experience with Red Hat Enterprise Linux or other Linux operating systems.
  • Experience with networking and cybersecurity technologies.
  • Tier III/IV troubleshooting skills.
  • Ability to take on tasks with little to no oversight.
  • Scripting knowledge and artificial intelligence skills.
  • Professional certifications such as MCSA, MCSE, VCA6/VCP6, LPIC, Security+, or Network+.
  • Ability to manage multiple concurrent project tasks and prioritize them appropriately.
  • Ability to communicate issues clearly and concisely in less technical terms to management and business stakeholders.
  • Leadership skills including customer focus, change management, teamwork, diversity, and integrity.
  • Ability to set priorities and manage to deadlines.
  • Troubleshooting, communication, and customer service skills.
  • Ability to proactively resolve problems.
  • Mentoring capabilities.
  • Practical hands-on field experience in radio frequency/Land Mobile Radio system design, staging, configuration, and implementation of complex radio systems.

About the company

L3Harris Technologies provides aerospace, defense, and space systems for governments and commercial customers, including sensors, communications, propulsion, and space assets. Its products combine hardware and software into integrated systems used for missions, from tactical radios and night vision to satellite payloads and missile defense. The company blends two legacies—Harris and L3—plus an acquisition strategy to deliver quick, field-ready capabilities, with a focus on space, missiles, and resilient satellite communications. Its goal is to deliver mission-ready defense and intelligence technology at scale for national security and related customers.

Company Size

10,001+

Company Stage

IPO

Headquarters

Melbourne, Florida

Founded

1895

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Simplify's Take

What believers are saying

  • July 2026 backlog hit $42 billion after $7.3 billion orders and raised guidance.
  • June 2026 Camden groundbreaking expands PAC-3 capacity as missile inventories stay depleted.
  • August 2026 Intuitive Machines contract deepens L3Harris's SDA Tranche 3 missile-defense platform.

What critics are saying

  • Christopher Kubasik's August 2026 ouster exposed governance fragility and succession disruption.
  • Aerojet Rocketdyne integration and Camden expansions must execute flawlessly before 2030 demand spikes.
  • Lockheed and Pentagon pricing pressure can compress margins if delivery slips or defects emerge.

What makes L3Harris Technologies unique

  • PAC-3 and THAAD propulsion make L3Harris irreplaceable in U.S. missile defense.
  • Space & Mission Systems plus Missile Solutions give Sam Mehta 80% revenue control.
  • Roman telescope optics and NGI motors show unmatched breadth across space and interceptors.

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Benefits

  • Health Insurance
  • Disability Insurance
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Paid Vacation
  • Paid Holidays
  • Mental Health Support
  • Relocation Assistance

Growth & Insights and Company News

6 month growth

15%

1 year growth

15%

2 year growth

15%
Yahoo Finance
Oct 21st, 2026
L3Harris wins $876M Navy contract for next generation jammer prototypes

L3Harris Technologies has won an $876 million contract modification from the US Navy for its Next Generation Jammer Low Band (NGJ-LB) program. The company will build prototype hardware, assemble specialised manufacturing equipment, and support flight testing. The award is undefinitized, meaning work starts before final price and delivery terms are agreed. The government typically uses such awards when it needs a project done quickly. The programme will replace ageing equipment that disrupts low-frequency radar and communications used against US combat aircraft. Chris Aebli, president of communications and spectrum dominance at L3Harris, said the company is "moving fast to deliver a system that equips aviators to counter those threats from safer, extended distances." The deal is small next to L3Harris's nearly $22 billion in revenue last year.

PR Newswire
Oct 15th, 2026
HGT Law investigates L3Harris after CEO Kubasik exit sent shares down 4.61% to $278.38

HGT Law is investigating L3Harris Technologies (NYSE: LHX) for possible securities law violations and breaches of fiduciary duty by its officers and directors. On August 17, 2026, L3Harris said Christopher Kubasik had stepped down as chairman and chief executive officer, citing conduct that breached its Code of Conduct. The stock fell $13.44, or 4.61%, to close at $278.38. The Wall Street Journal reported on August 19, 2026 that multiple women had raised concerns about Kubasik years earlier, including a formal harassment complaint around 2023. In 2012, Lockheed Martin asked him to resign as president over a relationship with a subordinate. The firm is examining whether L3Harris made misleading statements or withheld material information, and whether its board failed in overseeing executive conduct and approving Kubasik's separation terms.

Yahoo Finance
Sep 19th, 2026
L3Harris stock drops 35% despite breakthrough $22K anti-drone system beating $50K Shaheds

L3Harris stock has fallen 16% over the past month following the firing of CEO Christopher Kubasik over conduct issues, despite the company's progress in drone defence technology. The defence contractor's VAMPIRE launcher system, firing BAE Systems' APKWS rockets costing $22,000 each, has successfully shot down Russian Shahed drones worth $50,000, reversing the cost dynamics of drone warfare. The stock now trades below 16 times forward free cash flow, having underperformed defence peers by over 20 percentage points. Sam Mehta stepped in as CEO following Kubasik's departure. L3Harris also supplies solid rocket motors for advanced interceptor missiles including the Patriot system. The company's shares are down 35% from their all-time high set earlier this year.

Yahoo Finance
Sep 11th, 2026
L3Harris lands $4.7B Patriot missile deal to boost US interceptor production to 2,000 units by 2030

L3Harris Technologies has secured a seven-year, $4.7 billion contract with Lockheed Martin to manufacture Patriot missile defence components. The Melbourne, Florida-based defence contractor will produce advanced two-pulse solid rocket motor propulsion systems for the PAC-3 Missile Segment Enhancement interceptor, designed to neutralise aircraft, cruise missiles and ballistic threats. This marks L3Harris's largest PAC-3 propulsion contract. The company operates a facility in Northampton, Massachusetts, through its KEO division, which produces naval technology including US periscope systems and radar systems for surface ships and submarines. To meet production demands, L3Harris broke ground on two new facilities in Camden, Arkansas, in June. The expansion supports the US Department of Defense's goal to increase annual interceptor production from approximately 600 units to 2,000 units by 2030.

Business Wire
Aug 30th, 2026
L3Harris tech powers NASA's Roman Space Telescope to map universe 1,000 times faster than Hubble

L3Harris Technologies has provided key components for NASA's Nancy Grace Roman Space Telescope, which recently launched successfully. The company supplied the 2.4-metre Optical Telescope Assembly and radiation-hardened electronics for the observatory, which will operate approximately 1 million miles from Earth. The telescope is designed to survey the cosmos 1,000 times faster than the Hubble Space Telescope. Once operational, it will conduct three primary surveys, including scanning roughly 12% of the entire sky in under 18 months to measure the universe's expansion rate and study supernova explosions from up to 8 billion years ago. The project represents more than a decade of collaboration between L3Harris and NASA's Goddard Space Flight Center. L3Harris has previously contributed technology to missions including the James Webb Space Telescope and Mars rovers.