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Mechanical Engineering Manager

Simi Valley, California

Job ID AS20210811-72242
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On the L3Harris team, your job is to secure the world. We don’t work here just for the advanced technology and equipment: We work here because we know what – and who – we’re protecting. From families to the intelligence community, and from our climate to our men and women in uniform – we’re making the world a safer place. Working in Software with L3Harris you'll join our team of qualified, diverse individuals and work in a fast-paced environment with high expectations, global scope, and a collaborative team setting.

  • Full Time
  • Level: Experienced
  • Location: On Site
  • Glassdoor Reviews and Company Rating

Job Description

L3Harris is dedicated to recruiting and developing diverse, 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 an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs. The company provides advanced defense and commercial technologies across air, land, sea, space and cyber domains. L3Harris has approximately $18 billion in annual revenue and 48,000 employees, with customers in more than 100 countries.


Job Title: Mechanical Engineering Manager

Job Code: AS20210811-72242

Job Location:Simi Valley, CA

Job Description: Provides technical leadership for a team supporting the fixed site and mobile antenna product lines in development, production, and sustaining efforts for customer programs. Directly involved in the design, integration, and test of all aspects of the mechanical design of the antenna systems. A high level of technical content and participation in proposals, design, test, and sustainment of the products is anticipated with this position. Reviews and validates mechanical engineering documentation for content and completeness.

Essential Functions:

  • Responsible for determining staffing requirements and adjusting staffing levels as necessary to ensure that the department’s workface is appropriately staffed with qualified individuals.
  • Leads the team in defining requirements, planning, and executing project plans, participating in design reviews, and supporting production release of modified or new products, as well as addressing obsolescence of currently fielded systems.
  • Assigns, tracks, and controls department activities to ensure that department responsibilities are met and product designs conform to their requirements.
  • Provides direction and training to engineers and ensure compliance with department standards and policies.
  • Performs annual departmental performance appraisal reviews.
  • Prepares or assists in the preparation of the departmental budget as needed.
  • Reviews product specifications and generates system and module-level block diagrams, flow diagrams, and design concepts.
  • Designs, tests, and integrates hardware sub-systems and modules.
  • Utilizes simulation tools or design tools to implement designs in antenna products.
  • Demonstrates excellent analytical and troubleshooting skills. Conducts disciplined failure analysis to arrive at root cause for issues and design, or recommend effective corrective actions.
  • Interfaces with business development, proposals, other design and test departments, manufacturing, quality, production, and customer service to support all aspects of the antenna product lines.
  • Supports product processes, such as BOM's (Bill of Materials) and ECO's (Engineering Change Order).
  • Supports program and proposal processes, such as BOE’s (Basis of Estimate) and EAC’s (Estimate at Completion), as well as schedule generation and updates.
  • Prepares and presents technical data at customer PDR's and CDR's.
  • Provides job status to Director of Engineering and coordinates department activities with other departments.
  • Supports marketing activities and proposal preparation.
  • Prepares and participates in design presentations to customers and L3Harris employees. Identifies material and capital acquisition requirements, and initiates procurement.


Bachelor’s degree in Engineering and a minimum of ten (10) years of direct experience in the field or equivalent is required.

  • A minimum of five (5) years of department level management experience is required, including mechanical design, schedules, budgets, and proposals.
  • Experience using mechanical design tools such as Pro-E, AutoCad and SolidWorks required.
  • Must have experience in design of large and small moving structures.
  • Must have detailed understanding of environmental influences on outdoor structures.
  • Experience with Bill of Materials (BOM) management and Engineering Change Control (ECO) processes required.
  • Must have proficiency with Office Suite tools, including Word, Excel, PowerPoint, and Visio.

Preferred Additional Skills:

  • Experience with thermal and finite element analysis.
  • Experience with measurement techniques for mechanical parts and assemblies.
  • Familiar with Microwave transmit and receive systems.
  • Familiar with Servos and control systems.
  • Experience with brushed and brushless motors and gearbox design.
  • Familiar with air conditioning and cooling/heating systems.
  • Able to work closely with electrical engineers to consider thermal and other design trade-offs.
  • Working knowledge of DOD-1000 or ASME Y14.100 drafting standards, structural and thermal analyses, and environmental testing techniques.

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 résumé for this position, you understand and agree that L3Harris Technologies may share your résumé, 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 proud to be an Affirmative Action/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.

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.

Success Profile

What makes a successful Engineer at L3Harris?
Check out the traits we’re looking for and see if you have the right mix.

  • Innovative
  • Technical
  • Influential
  • Critical Thinker
  • Analytical
  • Detail Oriented


I love my job because every day there’s a new problem to tackle, a new skill to learn and an awesome team that has my back.

Heather S., Engineer

L3Harris Work Perks

  • Health

    • Medical with a High Deductible and traditional PPO plan options, as well as, vision and a full array of supplemental health benefits
    • A doctors' service to help with referrals and second opinions for you, your family, and parents

  • Family

    • 4 weeks of paid parental leave for moms and dads
    • Fertility treatment
    • Subsidized backup childcare and eldercare
    • Adoption assistance - $5,000 per adoption/$15,000 per employee
    • Pet insurance

  • Well-Being

    • No cap to your PTO time (for exempt employees)
    • Dress for your day - wear what works for you at work
    • Legal plan for you, your family, and parents
    • Discount platform

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