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FOS Reliability Engineer

L3Harris and Careers
Cincinnati, OH Full Time
POSTED ON 12/26/2025
AVAILABLE BEFORE 2/25/2026

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Reliability Engineer

Job Code: 31515

Job Location: L3Harris Fuzing and Ordnance Systems - Cincinnati, OH

Schedule: M-Th 10hr/day


Job Description:

Conduct reliability analysis and safety assessment of electronic and electro-mechanical devices containing analog, digital and RF circuitry. Analyses include Stress Analysis, Reliability Prediction, Failure Modes Effects and Criticiality Analysis (FMECA), Testability Analysis, Fault Tree Analysis and System Hazard Analysis. Write detailed reliability analysis and safety assessment reports.


Essential Functions:

  • Generate reliability and safety plans and procedures.
  • Interpret and allocate reliability and safety requirements.
  • Perform reliability, maintainability, availability, safety, FMEA, FMECA and Fault Tree Analysis.
  • Support FRACAS activities: Monitor and assist with failure recording. Participate in failure analysis to determine root cause and corrective action.
  • Actively engage with system design engineers in the development of new designs/configurations.
  • Provide recommendations to assure compliance with reliability and safety requirements.
  • Participate in system design reviews, presentations, and meetings with customers.
  • Liaise with clients and other technical disciplines within the company on reliability and safety issues.
  • Ability to handle multiple projects simultaneously during development and production stages.


Qualifications and Experience

  • Bachelor’s degree in electrical engineering and minimum 4 years of prior relevant experience. Graduate degree and a minimum of 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
  • Two years experience performing electrical stress/derating analysis, FMECA (MIL-STD-1629A), reliability predictions and analysis (MIL-STD-785/MIL-HDBK-217/ MIL-HDBK-1547A), Fault Tree Analysis (IEC 61025/ NUREG-0492), and system hazard analysis (MIL-STD-882) on electronic and electro-mechanical devices, Aerospace, defense, or government program experience, reading and analyzing electrical schematics.


Preferred Additional Skills:

  • Eligible for a security clearance.
  • Experience with Microsoft Office tools.
  • Experience with prediction software tools such as PTC Windchill Quality Solutions, Relyence, or similar tools.
  • Experience with Environmental Stress Screening (MIL-HDBK-344A).


L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

Salary.com Estimation for FOS Reliability Engineer in Cincinnati, OH
$87,919 to $103,814
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