Full-Time

Senior Member Engineering Staff

Secure Embedded Systems Engineer

Posted on 9/3/2025

L3Harris Technologies

L3Harris Technologies

10,001+ employees

Defense technology solutions for national security

Compensation Overview

$115.5k - $211.7k/yr

No H1B Sponsorship

Philadelphia, PA, USA

In Person

US Citizenship, US Top Secret Clearance Required

Category
Electrical Engineering (2)
,
Required Skills
Python
Requirements
  • A Bachelor’s Degree in an engineering discipline, Master’s degree highly desired
  • At least 6+ years’ experience in Systems Engineering for embedded or secure communication systems
  • Excellent verbal and written communications skills; works with others to coordinate efforts, influence and resolve cross-team issues and effectively communicate changes
  • A complete understanding of the systems engineering process from concept phase through systems test
  • Knowledge in Public Key Infrastructure (PKI) including Transmission Layer Security (TLS) and certificate/key management
  • Model-Based Systems Engineering (MBSE) experience
  • Proven experience applying the left side of the V-model, including requirements analysis, system architecture, and design
  • Hands-on experience with systems integration and verification testing (right side of the V-model)
  • Proficiency in Python scripting for test automation, diagnostics, and system-level debugging in embedded environments
  • US Citizenship required
  • Active US Government security clearance (DOD SECRET minimum)
  • Willingness to travel up to 10% of time
Responsibilities
  • Performing Concept of Operations development
  • Requirement’s decomposition/synthesis
  • Architecture Development and analysis
  • Security test planning and execution
Desired Qualifications
  • Understanding of Key Management Systems including Electronic Key Management System (EKMS) and Key Management Infrastructure (KMI) as they impact the design of End Cryptographic Units (ECUs)
  • Proven track record of success and experience in the architecture, design, analysis, integration, and test of NSA Approved Type 1 Certified systems or equipment
  • Ability to act as a single Subject Matter Expert (SME) for Information Assurance, Security, and Cryptography
  • Exceptional security architecture development skills: specifically including the ability to make complex design trade-offs affecting system security
  • Experience negotiating security requirements with NSA Technical Evaluators
  • Experience with NSA TSRD, IASRD, and FSDA requirements and processes
  • Experience with development of NSA Security Evaluation Document (SED) CDRLs. Multiple programs is highly desirable
  • Working knowledge of Type 1, Suite A, Suite B, and Commercial Cryptographic algorithms (Symmetric and Asymmetric)
  • Experience with Cybersecurity and Risk Management Framework
  • Cybersecurity Credential (e.g., CISSP)
  • Experience using Cameo Systems Modeler for systems architecture, design, and requirements traceability
L3Harris Technologies

L3Harris Technologies

View

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

Simplify Jobs

Simplify's Take

What believers are saying

  • Backlog doubles to $40B, providing twice revenue coverage through 2026.
  • $1.27B Virginia investment quadruples solid rocket motor production by 2031.
  • Classified space contracts reach 28% of business, targeting multi-billion growth.

What critics are saying

  • Fixed-price Artemis II contracts trigger margin erosion from cost overruns in 2027.
  • RTX captures US Army night-vision follow-ons via lobbying by Q2 2027.
  • Lockheed cuts F-35 C3ISR sourcing, slashing 15% revenue by 2028.

What makes L3Harris Technologies unique

  • L3Harris delivers end-to-end solutions across air, land, sea, space, and cyber domains.
  • Proprietary image intensifier technology leads 12.5% night-vision market share.
  • Deceptor payload enables real-time autonomous electronic warfare on UAS.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Health Insurance

Disability Insurance

401(k) Retirement Plan

401(k) Company Match

Paid Vacation

Paid Holidays

Mental Health Support

Relocation Assistance

Company News

Yahoo Finance
Apr 13th, 2026
L3Harris Technologies grows EPS 16% annually with $220M insider stake

L3Harris Technologies has demonstrated solid financial performance with earnings per share growing 16% annually over the past three years. The US$66 billion defence contractor reported revenue of US$22 billion, up 2.5%, whilst maintaining stable EBIT margins. Company insiders hold US$220 million worth of shares, representing 0.3% of the company. Whilst modest in percentage terms due to L3Harris's size, this stake provides alignment between management and shareholders. The company's combination of revenue growth, profit expansion and insider ownership distinguishes it from speculative, loss-making ventures. Its established track record of profitability offers investors lower risk compared to companies relying solely on growth narratives without financial substance. The article suggests L3Harris warrants consideration for investors seeking profitable, growing companies over high-risk ventures.

Yahoo Finance
Apr 9th, 2026
L3Harris up 71.8% in one year but trades at premium 42.1x P/E multiple above industry average

L3Harris Technologies has raised investor attention following recent share price movements, with the stock up 2.3% over the past week. The company has delivered strong longer-term returns, including a 71.8% one-year total shareholder return and 92.9% over three years. With revenue of $21.9 billion and net income of $1.6 billion, L3Harris is trading at $361.97. One valuation narrative suggests the stock is modestly undervalued at a fair value of $392.16, supported by expected US defence budget growth and the company's positioning in areas like missile warning and tracking. However, L3Harris' current price-to-earnings ratio of 42.1x sits above the US aerospace and defence industry average of 38.8x, suggesting potential valuation risk if market sentiment shifts.

The Associated Press
Apr 8th, 2026
Xoople and L3Harris unveil AI-optimised satellite constellation after seven years of development

Xoople, an AI data infrastructure company, and L3Harris Technologies have announced the co-development of a satellite constellation optimised for AI applications. The system, resulting from seven years of design and research, aims to deliver unprecedented precision in Earth observation data. The constellation features advanced optical and sensor design to maximise data quality, providing what Xoople calls "Earth's System of Record". The platform is designed to support AI systems shifting towards autonomous action, offering real-time monitoring with precision levels where even 1% error is unacceptable. Applications include supply chain optimisation, infrastructure management, risk underwriting, disaster response and security monitoring. CEO Fabrizio Pirondini said the system delivers the scale and precision required for AI-era decision-making across enterprises and governments.

Yahoo Finance
Apr 2nd, 2026
L3Harris powers NASA's Artemis II with over 100 mission elements, but fixed-price contracts may pressure margins

L3Harris Technologies supplied propulsion, avionics, thrusters and communications systems for NASA's Artemis II mission, the first crewed lunar journey in over 50 years. The company's involvement spans more than 100 mission elements, highlighting its capabilities in space hardware and systems integration for government programmes. Whilst the Artemis II role demonstrates L3Harris's technical breadth, analysts note it does not materially alter the near-term investment case. The company faces ongoing risks from fixed-price development contracts and potential US space budget constraints that could pressure margins. L3Harris's investment narrative projects $27 billion in revenue and $2.9 billion in earnings by 2029, requiring 7.3% annual revenue growth. Community analysts estimate fair value between $388 and $452 per share.

Yahoo Finance
Mar 23rd, 2026
Hegseth pushes $200B defence spending boost — Axon and L3Harris named top buys

US Defense Secretary Pete Hegseth plans to request $200 billion from Congress to fund operations against Iran, adding to the Pentagon's roughly $1 trillion budget for the current fiscal year. Two defence stocks well-positioned to benefit from this spending increase are Axon and L3Harris, according to Barchart. Axon, which provides law enforcement equipment including Tasers and AI-driven systems, reported 39% revenue growth to $797 million in Q4. The company's AI-powered tools are particularly relevant given recent suspected terrorist attacks in the US. L3Harris, a defence contractor selling missiles, satellites and communications products, saw 6% revenue growth to $5.6 billion last quarter, whilst cash from operations jumped 74% year-over-year. Analysts predict Axon's earnings per share will rise 13% this year and 115% in 2027.

INACTIVE