Full-Time

Lead Cybersecurity Engineer

L3Harris Technologies

L3Harris Technologies

10,001+ employees

Defense technology solutions for national security

No salary listed

No H1B Sponsorship

Nashville, TN, USA

In Person

On-site in Nashville, Tennessee; must be eligible for Secret clearance.

US Top Secret Clearance Required

Category
IT & Security (1)
Required Skills
TCP/IP
Computer Networking
Vulnerability Analysis
Linux/Unix

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Requirements
  • Secret clearance required at time of hire, and if required by the program, ability to obtain a Top Secret clearance at a later date.
  • Bachelor’s Degree Cybersecurity, Information Assurance, Information Systems, Network Engineering, Computer Engineering and minimum 9 years of prior relevant experience. Graduate Degree and a minimum of 7 years of prior related experience. In lieu of a degree, minimum of 13 years of prior related experience.
  • Security+ or CISSP certification required.
  • 4 years of experience NIST SP 800-53 and NIST SP 800-171 and their implementation in system design, validation, and continuous monitoring activities.
  • 4 years of experience Windows and Linux security administration and networking technologies such as TCP/IP, DNS, routing, switching, VPNs, firewalls, and secure communications.
  • 4 years of experience DoD STIGs, ACAS, Nessus, SCAP, or similar hardening and compliance assessment tools.
  • 7 years of experience planning and executing cybersecurity verification and validation activities, including requirements traceability, test support, artifact generation, and remediation of findings from assessors and scanners.
Responsibilities
  • Own cybersecurity implementation and validation for the program, ensuring security requirements are decomposed into system, software, hardware, and network designs and verified through analysis, inspection, testing, continuous monitoring, and closure of assessment findings.
  • Lead secure network architecture and interface protection activities across the product line, including boundary protection, segmentation, routing and switching design considerations, access control, logging, encryption, secure remote access, firewall rules, and integration with mission networks.
  • Define, allocate, and trace cybersecurity requirements for product line components and interfaces, and ensure alignment with NIST SP 800-53, NIST SP 800-171, program security requirements, and customer expectations.
  • Develop, maintain, and deliver authorization artifacts including the System Security Plan (SSP), Security Assessment Report, Plan of Action and Milestones (POA&M), network diagrams, data flow artifacts, and privileged user guidance.
  • Coordinate vulnerability management, hardening, STIG implementation, scan execution, remediation planning, and closure of cybersecurity findings across development, integration, test, deployment, and sustainment.
  • Partner with engineering and program leadership to assess risk, recommend secure design decisions, and drive timely resolution of cybersecurity issues that affect cost, schedule, performance, or authorization posture.
  • Support cybersecurity test planning and execution, requirements verification, and evidence collection to demonstrate implementation effectiveness and readiness for customer review and operational acceptance.
  • Brief customers and program leadership on cybersecurity status, residual risk, compliance posture, and readiness.
Desired Qualifications
  • Strong analytical, written, verbal, and cross-functional communication skills with the ability to influence technical and program decisions.
  • Experience serving as the cybersecurity lead across a product line, family of systems, or other complex mission system portfolio.
  • Experience with embedded systems, tactical networks, platform security features, or hardware security evaluation.
  • Experience integrating cybersecurity into systems engineering, manufacturing, or fielded support environments.
  • Experience supporting customer assessments, control inheritance strategies, continuous monitoring, and long-term sustainment for operational programs.
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

  • Backlog nearly doubled to over $40 billion in Q1 2026, signaling sustained defense demand and twice revenue coverage[11].
  • $600 million classified space contract with multi-billion potential expands its 28% classified business share in orbital programs[11].
  • Wall Street maintains Strong Buy with 30% upside as Q1 EPS beat 33% year-over-year driven by US government weapons demand[11].

What critics are saying

  • HASC may force DoD to divest $1 billion equity within 6–12 months to diversify solid rocket motor suppliers, collapsing Axyv IPO[11].
  • 2027 budget uncertainty could trigger $3 billion earnings miss and margin compression as Bernstein cut price targets citing weapon program delays[11].
  • DataShapes AI dependency for Wraith Shield™ enables 30%+ revenue share demands within 9–15 months, locking L3Harris into software-only model[11].

What makes L3Harris Technologies unique

  • L3Harris uniquely combines space, missile propulsion, and secure communications in three aligned segments since January 2026 reorganization[7][8].
  • Its trusted disruptor model blends prime scale with startup agility via an Agile Development Group and Shield Capital partnerships[1][2].
  • The $1 billion DoW equity investment in Missile Solutions before its Axyv IPO creates unmatched propulsion capacity leverage[6][11].

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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%
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.