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Senior Manager, Mechanical Engineering

L3HARRIS Technologies

Clifton, NJ · Posted November 3, 2026

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About the job

Job Title: Senior Manager, Mechanical Engineering

Job Code: 47212

Job Location: Clifton, NJ

Job Schedule: 9/80: Employee works 9 out of every 14 days – totaling 80 hours worked – and have every other Friday off

Job Description:

The team is seeking an Electronic Packaging Mechanical Engineer to lead a cross-functional team in the development, design, implementation, qualification and productionization of ruggedized ground and airborne military systems. You will be responsible for leading ME efforts in pursuit of new business preproposals and proposal support, including generation of BOEs, and function as responsible Mechanical Project Engineer on programs and internal development projects as needed. As an individual contributor, you will be responsible for the design, layout, testing and evaluation of mechanical and electro-mechanical devices or systems with emphasis on electronic packaging for Electronic Warfare programs. This includes preparation of design specifications and performing/ review of thermal, structural, dynamic and fatigue analysis to meet mechanical requirements and determine feasibility of design within time and cost constraints. The position will interface with Designers, Thermal/Structural Analysts, Systems Engineers, other engineering disciplines, Program Managers, and customer counterparts. The position will require leading the mechanical engineering activities related to the design, analysis, documentation, fabrication, assembly and qualification of product to the specification requirements, typically with stringent technical, schedule, and process requirements. You will investigate solutions to product or process problems and be part of the Failure Review Board (FRB). Candidate must have experience in 3D modeling, critical HW design and development to include environmental requirements, power delivery, and aggressive thermal management. Candidate must have the ability to work independently and within a multi-disciplined team environment. Candidate must have experience leading a team and pushing forward mechanical technologies.

Essential Functions:

Serve as the Chief ME for the business and point of contact for GM, CEs, PMs and ME Leadership

Be the Subject Matter Expert for EW programs and products.

Detailed mechanical design and analysis of electronic systems, boxes, and modules

Specification, model, and drawing generation per ASME Y14.100 and ASME Y14.5

Generate mechanical engineering design concepts which meet equipment specification requirements and refine the design through the use of CAD designs, 3D printed models, simulation tools, and functional prototypes.

Mechanical and environmental testing and mechanical troubleshooting of electronics systems

Travel (domestic and foreign) may be required 2-5% in a year

Proposal support and development

Assist with developing overall site wide Mechanical strategy

Work closely with cross-functional teams in the development of new solutions.

Significant CAD modeling of parts & assemblies

Perform trade studies to determine optimal designs

Review Structural and thermal analysis of components & assemblies

Have deep understanding of thermal management of high-power electronics in constrained volumes.

Electromechanical integration and electronics packaging

Lead mechanical design efforts

Lead peer reviews, PDRs, CDRs, and other required design reviews

Schedule, cost, and technical responsibility at the major subsystem level

Interface to customers & upper management

Provide guidance and mentorship for other team members formally or informally

Responsible for directing and reviewing the work of junior engineers and designers and technicians.

Participate in risk assessment and develop mitigation strategies for complex projects

Ability to obtain and maintain a US secret security clearance and any additional clearances as required

Take roles such as IPT Lead when necessary

Qualifications:

Bachelor’s degree in engineering and minimum 12 years of prior relevant experience. Graduate Degree and a minimum of 10 years of prior related experience. In lieu of a degree, a minimum of 16 years of prior related experience.

Preferred Additional Skills:

Experience with standard ASME Y14.5M-1994 and GD&T

Minimum of 6 years’ experience in 3D CAD modeling – PTC Creo

Minimum of 8 years’ experience packaging electronics including design for and testing to military environments (i.e. temperature, vibration, shock, etc.)

Minimum of 8 years’ experience with thermal management of high-power electronics.

Experience leading in the generation of technical content for bids: scope capture, requirements development, materials pricing, and labor estimates as required

Ability to obtain a Top-Secret security clearance

Excellent people skills, with experience leading and collaborating in a multi-disciplinary, diverse, and dynamic team environment.

Excellent communication skills (written, verbal, & presentation)

Strong hands-on capabilities, to include integration and diagnosis of complex mechanisms and products

Design for Manufacturability and Assembly (DFM/DFMA) experience

Vibration and shock analysis for airborne applications

Additive manufacturing and part optimization experience a plus

Basic understanding of control systems

Experience with machined part design

Experience with EVMS cost and schedule practices

Familiarity with Windchill, military design and environmental test standards, FloTHERM, Matlab, and MathCAD

Familiarity with ME role in PCB design process

Knowledge of electrical and optical cable routing and management in high reliability environments

Oversight of a team of Mechanical Engineers. Responsibilities to include:

Partnering with programs to ensure they are correctly staffed, engineering processes are being followed, and proposal efforts are supported.

Tracking performance of a Clifton Mechanical Engineering group including staffing, training, onboarding, employee development, engagement and proactive retention

Regular review of metrics to drive year-over-year performance improvement

Serving as ME functional representative for site specific design reviews and review/approval of proposals and Basis of Estimates (BOEs) as needed

Providing technical evaluation and oversight of program execution and leading/participating in technical issue resolution teams when required

Ensuring knowledge transfer and mentoring of less experienced engineers occurs within the overall department

In compliance with pay transparency requirements, the salary range for this role in California is $146,000 - $271,000. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

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