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Mechanical Engineer

Job in Hacienda Heights, Los Angeles County, California, 91745, USA
Listing for: TriMas
Full Time position
Listed on 2026-07-01
Job specializations:
  • Engineering
    Manufacturing Engineer, Mechanical Engineer, Aerospace / Aviation / Avionics, Quality Engineering
Job Description & How to Apply Below

Mechanical Engineer

Company:
Allfast Fastening Systems LLC

Primary

Location:

15200 Don Julian Road, City of Industry, CA 91745 USA

Workplace Type:
On-site

Employment Type:

Salaried | Full-Time

Function:
Engineering

Equal Opportunity Employer Minorities/Women/Veterans/Disabled

Main Duties & Responsibilities

Summary: Penn Aero is hiring a Mechanical Engineer at our Allfast Fastening Systems location in City of Industry, CA. Allfast Fastening Systems is a leading global manufacturer of solid and blind rivets, blind bolts, temporary fasteners, and installation tools for the aerospace industry. Our fasteners are crucial for the structural integrity of both commercial airliners and military jets. As a key supplier to major aerospace manufacturers, Allfast's products support the commercial, military, and general aviation platforms in production and in service.

About Penn Aero: Penn Aero is a leading manufacturer of highly engineered fasteners and specialized components for critical aerospace, defense, space, and advanced energy applications. We partner with customers to solve their most complex challenges, bringing technical depth and disciplined, agile execution when it matters most. Experience guides our growth—strengthening capabilities and expanding our global platform as markets evolve.

JOB SUMMARY:

Plans and directs research and development activities to introduce new products for manufacture. Conducts analytical studies on engineering proposals to develop design for products. Reviews and directs activities for current products that are subject to revisions. Directs and coordinates manufacturing processes in the industrial plant required for the development of new products and/or execution of continuous improvement.

Essential Duties, Responsibilities and Competencies:

  • Plans and formulates aspects of research and development proposals such as objective or purpose of project, applications that can be utilized from findings, cost of project, and equipment required.
  • Develops and implements methods for monitoring projects, such as preparation of records of expenditures, research findings, and progress reports to inform management of status of each project.
  • Identifies, in conjunction with sales and engineering management, promising areas of fastener products that address unmet needs and have potential market share available.
  • Conducts analytical studies on engineering proposals to develop design for products.
  • Analyzes research data and proposed product specifications to determine feasibility of product proposal.
  • Confers with research and other engineering personnel and prepares design modifications as required.
  • Confers with planning and design staff concerning product design and tooling to ensure efficient production methods.
  • Prepares or directs preparation of product or system layout and detailed drawings and schematics.
  • Directs and coordinates manufacturing or building of prototype product or system.
  • Plans and develops experimental test programs.
  • Analyzes test data, reports to determine if design meets functional, and performance specifications.
  • Evaluates engineering test results for possible application to development of systems or other uses.
  • Uses computer assisted engineering and design software and equipment to perform engineering and design tasks.
  • Ability to define problems, collect data, establish facts, and draw valid conclusions.
  • Ability to interpret an extensive variety of technical instructions in mathematical or diagram form and deal with several abstract and concrete variable.

This role is required to be on-site 5 days at the City of Industry, CA location.

Qualifications

Education and/or Experience:

Bachelor's degree from an accredited four-year College or university in engineering discipline.

Three (3) years related engineering experience, including experience with research and development responsibility in a high-volume manufacturing environment with methods and processing exposure.

Minimum of three (3) years' experience using Solidworks

ERP experience creating Bill of Materials

Proven experience working in a design for manufacturing environment

Experienced at effective Root Cause Analysis

Excels in a fast-paced work…

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