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Senior Mechanical Design Engineer

Chatsworth, California - Posted on September 12, 2025
Published By Brian Polevacik

Trillium Professional is now seeking a Senior Mechanical Design Engineer in Chatsworth, CA!

Job Duties:
-Plans and designs manufacturing processes.  
-Maximizes efficiency by analyzing layout of equipment, workflow, assembly methods, and work force utilization.  
-Determines parts and tools needed in order to achieve manufacturing goals according to product specification.  
-Relies on instructions and pre-established guidelines to perform the functions of the job.  
-Works under immediate supervision.

Basic Functions:
-Design and develop mechanical systems, keeping in mind the budget and timelines
-To generate 3D models of enclosures and mechanical packaging and Assembly drawings in SolidWorks
-To generate conceptual design, PCB board design, layout and packaging in SolidWorks
-Product-focused creative thinking and strong attention to detail design
-Developing and building prototypes to test their function
-Analyzing and testing existing products to identify areas for improvement
-Work directly with all departments to resolve manufacturing issues
-Must have working knowledge of mold making, dies, tooling, assembly, manufacturing fixtures and processes
-Experience in fiberglass and foaming a plus (parts and assemblies are fabricated from foam, fiberglass, castings, resins and aluminum)
-Some injection molding experience
-Produce/support technical and engineering documents (Spec. Router, ECO, ECR)

Annual salary is $150k/year. Apply now!

-Bachelor of Science Degree with an emphasis in Mechanical Engineering and a minimum of 5 years of engineering experience as related to the above duties
-3 years of experience working in a manufacturing environment as a process owner (design, process, equipment, documentation)
-Proficiency in common design software, such as AutoCAD and SolidWorks. Microsoft Word, Excel, and Power Point
-Good knowledge of FEA analyses for thermal, stress and vibration analysis using simulation tools and SW
-Ability to read and comprehend blueprints, drawings and quality specifications
-Ability to read and understand basic Geometric Dimensioning and Tolerance
-Aerospace manufacturing company experience in assisting all phases of manufacturing process a plus
-Comfortable and able to work well as part of an integrated team including skilled technicians, engineering peers, and principal level engineers
-Must exhibit good judgment, ingenuity, and personal as well as professional integrity
-Must possess good written and verbal communication skills.

This position requires use of information or access to hardware, which is subject to the International Traffic in Arms Regulations (ITAR). All applicants must be U.S. persons within the meaning of ITAR. ITAR defines a U.S. person as a U.S. Citizen, U.S. Permanent Resident (i.e. 'Green Card Holder'), Protected individual as defined by 8 USC 1324b(a)(3).


Trillium has been recruiting and placing accounting, finance and technical professionals for over 30 years. From Fortune 100 companies to small businesses, our philosophy remains the same: to achieve excellence by providing quality employees with an uncompromising level of service. We believe in honesty, integrity, and a simple philosophy of providing value to our customers and our employees. We strive to be unsurpassed in the recruitment and placement of technical professionals. Trillium is an Equal Opportunity Employer.

By applying to this job, I agree to receive electronic communications including SMS text and email regarding future opportunities, referral bonus incentives, and other promotions from Trillium. You may opt out at any time from future communications by responding STOP to any electronic communication. You may view our full privacy policy at https://trilliumstaffing.com/jobs/privacy/.

Trillium offers a comprehensive benefit package that includes the ability to participate in health insurance and retirement plans, paid holidays, state required leave, and vacation days, if applicable. Trillium’s offerings are dependent on the state in which the assignment is located, length of time worked, and may change depending on assignment. Benefit packages for direct hire placements vary based on the client company.

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