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L3Harris Technologies

Global defense contractor delivering aerospace tech

Systems Engineer Senior Associate - Systems Engineering

Full-TimeUpdated on 10/23/2026
$80.5k - $149.5k
Mid, Senior
Bachelor's, Master's
Forest, VA, USA
In PersonApproximately 40% travel; about 60% of time in factory staging and verification and 40% field travel.
IT OperationsNetwork Engineering & Administration

About the job

Requirements
  • A bachelor's degree and at least 2 years of prior related experience, or a graduate degree or equivalent with 0 to 2 years of prior related experience; in lieu of a degree, at least 6 years of prior related experience.
  • 3–6 years of technical experience in Land Mobile Radio, telecommunications, or a related field.
  • Ability to obtain a security clearance.
  • Practical hands-on field experience in RF/LMR system design, staging, configuration, and implementation of complex radio systems is preferred.
  • Experience in the design of IP networks, RF antenna systems, microwave systems, wireless data systems, data networking, and system configuration is desired.
  • Professional certifications such as Network+, Security+, Linux+, or CCNA are a plus.
  • Ability to manage concurrent project tasks and prioritize them appropriately.
  • Ability to communicate technical issues clearly and concisely to management and business audiences.
  • Ability to set priorities and manage work to deadlines.
  • Troubleshooting, communication, and customer service skills.
  • Ability to proactively resolve problems.
Responsibilities
  • Implement complex IT systems that meet specific customer requirements using approved designs and proven deployment practices.
  • Deploy systems consistently while maintaining security, availability, and performance standards for public safety communications systems.
  • Provide leadership to other implementation team members and define engineering schedules.
  • Resolve customer issues and deliver clear, concise statements of work for subcontractors.
  • Improve execution through tollgate processes and follow Harris standard operating procedures.
  • Work with program management to identify and resolve project problem areas early.
  • Identify and facilitate activities with vendors, escalation teams, and other internal teams.
  • Implement and support complex IP-based radio system networks.
  • Implement Information Assurance products for customer Land Mobile Radio systems.
  • Maintain documentation and configuration revision control.
  • Follow established ISO processes through the tollgate system.
  • Participate in all phases of design, staging, configuration, and implementation of L3Harris Land Mobile Radio systems to improve program operations.
  • Participate in technical planning, system integration, functional verification, performance validation, and process improvement versus cost/risk analysis.
  • Participate in discussions with customers, consultants, vendors, and other L3Harris personnel to advance projects.
  • Identify potential issues in the offered design early in the contracting process and propose solutions.
  • Respond to proposal text and provide material describing the system and offered special equipment as needed.
  • Spend approximately 60% of the time in factory staging and verification and 40% in field travel.
Desired Qualifications
  • Technical experience in Land Mobile Radio, telecommunications, or a related field.
  • Ability to work within a cross-functional team environment.
  • Effective verbal and written communication skills in English.
  • Leadership skills including customer focus, change management, teamwork, diversity, and integrity.
  • Ability to work independently while setting priorities and meeting deadlines.

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.