Full-Time

Specialist

Mechanical Design Engineer, Fos

Posted on 12/19/2025

L3Harris Technologies

L3Harris Technologies

10,001+ employees

Defense technology solutions for national security

No salary listed

Cincinnati, OH, USA

In Person

Category
Mechanical Engineering (1)
Required Skills
GD&T
SolidWorks
FEM/FEA
Requirements
  • Bachelor’s Degree in Mechanical, Aerospace or other related Engineering field and a minium 4 years of prior relevant work experience.
  • Graduate degree and a minimum of 2 years prior relevant work.
  • In lieu of a degree, minimum 8 years of prior related experience.
  • Professional experience with CAD software such as Solid Edge, SolidWorks, NX etc.
  • Professional experience with GD&T application and interpretation.
  • Professional experience with dimensional stack-up/tolerance analysis.
  • Professional experience with manufacturing methods and design for manufacturability (DFMA).
  • Must be able to obtain a US Security Clearance.
Responsibilities
  • Act as lead mechanical engineer on various programs holding the responsibility for ensuring the designs and product performance meet customer specifications.
  • Apply mechanical engineering principles to generate new designs, or modify existing designs, in accordance with company design guidelines and procedures.
  • Apply configuration management principles to design documentation and technical data packages.
  • Generate, modify, and interpret engineering drawings, specifications, compliance matrices, etc. in accordance with industry, company, and customer requirements.
  • Collaborate with engineering analysts to conduct finite element analysis on new designs showing compliance to internal guidelines, DoD requirements and customers' specifications.
  • Participate in failure investigations, where appropriate, related to design, production build processes, and customer returns.
  • Prepare materials for internal and customer design reviews, and effectively present material to design review teams.
  • Devise design verification test sequences to demonstrate compliance with specified performance environments (temperature, vibration, shock, acceleration, etc). Prepare associated test plans, and test reports.
  • Participate in efforts to drive process improvements which increase efficiency and lower cost.
  • Support active production, which includes but is not limited to test fixture and tooling designs, product trouble shooting, document and drawing updates, process control improvements, and product design improvements.
  • Maintain a positive work atmosphere by acting and communicating in a manner that is cooperative and supportive of customers, co-workers and managers.
  • Ability & willingness to be adaptable and accept feedback as part of the design review process.
  • Other duties as assigned.
Desired Qualifications
  • Proficient knowledge of physics, engineering mechanics, fatigue, and mechanics of materials.
  • Proficient knowledge of thermodynamics and heat transfer.
  • Proficient knowledge of dynamics and vibration (time and frequency domains).
  • Knowledgeable in DoD and MIL standards/specifications or other highly regulated industry.
  • Experience with AS9100 and ISO 9001 quality standards.
  • Knowledgeable in engineering materials and 3D printing.
  • Familiarity with finite element analysis tools and methods.
  • Knowledgeable in statistical analysis.
  • Master of Science in Mechanical or Aerospace Engineering.
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

Simplify Jobs

Simplify's Take

What believers are saying

  • Backlog above $40 billion provides strong revenue visibility through 2026.
  • The $1.27 billion rocket motor expansion supports higher missile output.
  • Classified space wins and a $600 million program expand high-margin growth.

What critics are saying

  • Congress is pressuring the $1 billion rocket motor investment to fund rivals.
  • Rocket-motor expansion delays would damage a critical capacity growth engine.
  • Defense budget tightening in 2027 can slow awards and backlog conversion.

What makes L3Harris Technologies unique

  • L3Harris spans air, land, sea, space, and cyber defense domains.
  • Its missile, space, and night-vision franchises ride long-duration government contracts.
  • The company monetizes installed hardware through software upgrades like Wraith Shield.

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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

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.

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