Full-Time

Systems Engineer – Sr. Member Engineering Staff

L3Harris Technologies

L3Harris Technologies

10,001+ employees

Defense technology solutions for national security

Compensation Overview

$114.9k - $218k/yr

No H1B Sponsorship

Philadelphia, PA, USA

In Person

On-site in Camden, New Jersey; travel up to 10%.

US Top Secret Clearance Required

Bachelor's, Master's

Category
IT & Security (1)

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Requirements
  • Bachelor's degree in an engineering discipline
  • Active DoD security clearance required (SECRET minimum)
  • 10+ years of Systems Engineering experience supporting Information Assurance systems or related products
  • Complete understanding of the Systems Engineering lifecycle from concept through test, including architecture development, functional analysis, requirements allocation & traceability, trade studies, system synthesis, and integration
  • Experience planning, developing, and executing verification activities for security features and system-level functionality
  • Hands-on system integration and test (I&T) experience for complex embedded or networked systems
  • Experience authoring and reviewing artifacts for formal design reviews
  • Model-Based Systems Engineering (MBSE) experience
  • Proven track record in the architecture, design, analysis, integration, and test of NSA Type-1 certified or NSA-approved systems or equipment
  • Experience with security verification test planning and execution
  • Familiarity with the NSA Type-1 certification lifecycle, including interactions with NSA technical evaluators
  • Experience supporting NSA security Certification & Verification activities, including evidence production, test event support, and closure of certification findings
  • Familiarity with NSA certification artifacts and deliverables (multiple programs highly desirable)
  • Exceptional security architecture development skills, including ability to make and defend complex security trade-offs in high-assurance systems
  • Working knowledge of Type-1, Suite A, Suite B, and Commercial cryptographic algorithms (symmetric and asymmetric)
  • Knowledge of Public Key Infrastructure (PKI), TLS, and certificate/key management
  • Understanding of key management systems including EKMS and KMI as applied to End Cryptographic Units (ECUs)
  • Experience with secure networking protocols, red/black interface design, and embedded Linux development environments for cryptographic devices
  • Excellent verbal and written communication skills with the ability to coordinate efforts across teams, influence decisions, resolve issues, and effectively communicate change
  • Bachelor’s degree in an engineering discipline; Master’s degree highly desirable
  • Active DoD security clearance required (SECRET minimum)
Responsibilities
  • Applies security and cryptography expertise throughout the Systems Engineering lifecycle to develop and successfully certify National Security systems on time, within budget, and with low residual risk
  • Supports the design, development, and test of high-assurance security solutions for Defense and Intelligence community customers
  • Develops Concepts of Operations (CONOPS), decomposing and synthesizing security requirements, verifying security features, supporting security architecture development and analysis, and assisting with design and security test planning and execution
  • Supports NSA certification activities, secure networking integration, and embedded platform security for Type-1 cryptographic communication systems
  • Serves as a Subject Matter Expert (SME) and Systems Lead for Information Assurance, Security, and Cryptography
  • Travels up to 10%
  • Ability to obtain and maintain US Security Clearances
Desired Qualifications
  • Experience with cybersecurity compliance and the Risk Management Framework (RMF)
  • Cybersecurity certifications (e.g., CISSP)
  • Advanced MBSE experience is strongly desirable
  • Active TS/SCI clearance
  • Experience with NSA Type-1 certified or NSA-approved systems or equipment is already in requirements but can be in desirable as well
  • Experience with security certification artifacts and deliverables (multiple programs highly desirable)
L3Harris Technologies

L3Harris Technologies

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L3Harris Technologies provides defense and national-security technology solutions across space, air, land, sea, and cyber domains. It develops integrated systems with advanced communications, surveillance, and reconnaissance to support government agencies and defense contractors under long-term contracts. The product combines hardware, software, and services to deliver secure, interoperable, mission-critical capabilities. Its goal is to help clients strengthen operational readiness and national security through reliable, multi-domain technologies and sustained partnerships.

Company Size

10,001+

Company Stage

IPO

Headquarters

Melbourne, Florida

Founded

1895

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Simplify Jobs

Simplify's Take

What believers are saying

  • July 29, 2026 results showed $42 billion backlog and raised full-year guidance.
  • July 27, 2026 DoW agreements quadruple THAAD and triple PAC-3 propulsion output.
  • The July 13, 2026 satellite award expands immediate production across Indiana and Florida.

What critics are saying

  • Golden Dome and interceptor orders concentrate revenue on one conflict-driven Pentagon priority.
  • Aerojet's new capacity must execute by 2028, or deliveries miss DoW expectations.
  • BAE's April 2026 settlement shows recurring contract-dispute exposure around proprietary defense work.
  • Any PAC-3 or THAAD propulsion slip would damage U.S. deterrence trust and re-compete awards.

What makes L3Harris Technologies unique

  • Aerojet Rocketdyne powers PAC-3 MSE and THAAD propulsion, critical to U.S. missile defense.
  • L3Harris won July 13, 2026 AMDT3 satellites, linking space sensing to Golden Dome.
  • Vampire and Aeromet give L3Harris low-cost counter-drone and airborne test-verification niches.

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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

Headcount

6 month growth

14%

1 year growth

14%

2 year growth

14%
Associated Press
Aug 10th, 2026
L3Harris completes hot-fire test of stage two rocket motor for Next Generation Interceptor program

L3Harris Technologies has successfully completed a hot-fire test of its stage two advanced large solid rocket motor for the Missile Defense Agency's Next Generation Interceptor programme. The company conducted the test as part of the Lockheed Martin team developing the homeland missile defense system. The test validated the system's design integrity, with the motor completing a full-duration burn in a simulated high-altitude, vacuum environment. Engineers evaluated performance in conditions mimicking Earth's upper atmosphere. L3Harris serves as the primary propulsion and control systems provider for NGI, producing both stage one and stage two rocket motors, plus the Attitude Control System and Divert and Attitude Control System. The company manufactures components across facilities in California, Virginia, Alabama, and Arkansas.

Yahoo Finance
Aug 10th, 2026
Iran tensions expose defense supply gaps as AeroVironment lands $186M drone deal

Iran's recent attacks in the Strait of Hormuz and Red Sea have exposed critical shortages in defense supplies, particularly drones, precision weapons, and artillery shells. This situation presents opportunities for defense contractors positioned to scale production. AeroVironment secured a $186 million US Army order in February 2026 for Switchblade loitering munitions, part of a five-year contract with a $990 million ceiling. The systems enable small units to destroy armored vehicles without larger missiles. L3Harris Technologies reported orders of $7.8 billion in Q1 2026, with a book-to-bill ratio of 1.4 and record backlog of $40.7 billion. By Q2, backlog reached $42 billion on $7.3 billion in new orders, with revenue increasing 8% to $5.9 billion. Both companies are positioned to benefit from increased demand driven by ongoing conflicts.

Yahoo Finance
Jul 31st, 2026
US Pentagon signs seven-year deals with L3Harris and Lockheed Martin to expand missile defense production

The US Defense Department announced two seven-year agreements with L3Harris Technologies and Lockheed Martin on 27 July to expand propulsion capacity for Patriot and THAAD interceptors, addressing missile defence system shortages driven by Iran tensions. RTX also benefits as a key contractor and supplier for these systems. L3Harris is up 3% this year, whilst RTX and Lockheed Martin have gained more than 17% and 19% respectively. Lockheed reported Q2 revenue of $20.1 billion, up 11% year over year, with a record backlog of $230 billion. Through its Aerojet Rocketdyne business, L3Harris supplies solid-rocket motors for THAAD and Patriot missiles, benefiting from demand regardless of contract awards.

Yahoo Finance
Jul 30th, 2026
L3Harris to quadruple THAAD missile propulsion production under 7-year DoW contract

L3Harris Technologies has signed a framework agreement with the Department of War and Lockheed Martin to quadruple propulsion production for the Terminal High Altitude Area Defense (THAAD) system. The seven-year contract will be the largest THAAD propulsion award L3Harris has received to date and is expected to be finalised later this year. L3Harris produces THAAD's Solid Rocket Boost Motors and Liquid Divert and Attitude Control Systems for the Missile Defense Agency. The company manufactures these components at facilities in Huntsville, Alabama, Camden, Arkansas, and Los Angeles. The expansion builds on L3Harris' ongoing investments, which include constructing approximately 60 facilities and adding or upgrading nearly one million square feet of manufacturing and office space across its rocket motor production sites in Alabama, Virginia, and Arkansas.

Associated Press
Jul 29th, 2026
L3Harris Technologies reports record $42B backlog, raises 2026 revenue and EPS guidance

L3Harris Technologies reported strong second quarter 2026 results with revenue of $5.9 billion, up 8% year-over-year. The aerospace and defence company posted diluted earnings per share of $3.13, a 28% increase. Orders reached $7.3 billion with a book-to-bill ratio of 1.2x, pushing backlog to a record $42 billion. Operating margin improved 60 basis points to 11.1%, whilst segment operating margin reached 16.0%. Operating cash flow rose 37% to $879 million, and free cash flow increased 37% to $771 million. Capital expenditures totalled $108 million. The company raised its full-year 2026 guidance, now expecting consolidated revenue of $23.2 billion to $23.7 billion and diluted EPS of $11.75 to $11.95. Growth was driven across all segments including Space & Mission Systems, Communications & Spectrum Dominance, and Missile Solutions.