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Fabrication Mechanic A/B/C

West Palm Beach, Florida

Job ID 7388
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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 space, air, land, sea and cyber domains. L3Harris has approximately $18 billion in annual revenue and 50,000 employees, with customers in more than 100 countries.

Job Title: Fabrication Mechanic A/B/C

Job ID: 7388

Job Location: Jupiter, FL- On Site

Job Schedule: 5/8 – Monday through Friday. 2nd shift. 

Aerojet Rocketdyne, an L3Harris Technologies Company, is seeking a Fabrication Mechanic A/B/C to join our fabrication team in West Palm Beach, FL.

These positions are for 2nd Shift, but may be changed as needed to meet the changing business demands. Position level will be filled based on education and experience of identified candidate.  These positions may be filled at the level of the identified candidate.

This posting may represent one or more specific immediate or near-term openings. Those who express an interest may be considered for current and future positions.

Essential Functions:

Working to close tolerances, perform complex and difficult fabrication operations to form, fit, fabricate, repair and test a variety of complicated production and developmental space propulsion details, precision parts, assemblies and related tools. Pressure test, inspect and perform thermal expansion and related tests on a variety of space related parts and assemblies. Support other trades in fabricating complex major assemblies involving manufacturing, assembly and test operations. The tasks to which the employee may be assigned will include one or more of the following types of work performed by a Fabrication Mechanic:

  • Fabricate chamber tubes top close tolerances using various precision instruments. Form, contour, spank, fit and inspect tubes, using proper handling procedures to ensure configuration and quality requirements are met.
  • Select and adapt proper tooling, methods, procedures and operational sequences to form and fabricate a variety of objects ranging from the simple to unusual and difficult details and sub-assemblies, working from broad verbal instructions and complicated drawings, operation sheets and general specifications. Properly interpret geometric position and feature control specifications and use handbook formulae and applied math including trigonometry and algebra to perform calculations. Work with a variety of metals including stainless steel, aluminum, titanium, columbium, silver and others, using a wide variety of hand tools, machines and equipment.
  • Assemble chamber and related components, sub-assemblies and details, ensuring proper alignment of details and related hardware using appropriate precision and optical measuring instruments. Apply and remove necessary hardware and instrumentation in preparation of furnace brazing of chamber, including loading and pressure checking. After chamber removal, perform visual inspection as required.
  • Perform helium, thermal expansion and water pressure testing. Install and remove chamber from centroid as required in preparation for welding, machining and assembly operations. Use appropriate tooling and mechanical devices to install and fit complicated engine hardware.
  • As required, assist assembly, heat treat, machine and weld shops, inspection or other functions and groups with operations relating to or involving rocket fabrication, rework, set up and assembly, and fabrication and preparation of details, parts or other items to be brazed, welded, heat treated, or modified.  Examples include, but are not limited to, casting the silver throat and fabricating the box section of nozzle. Make recommendations to modify details, tooling and processes as required for product improvements and operational efficiencies.
  • Maintain computerized and manual records, reports and logs on a variety of details and hardware such as, but not limited to, dimensions, repairs, deficiencies, and precious metal and tube inventories. Operate hoists, lifting devices, and fork lift truck as required.
  • Comply with federal and state environmental and safety regulations to conform to company guidelines and procedures including the wearing of safety glasses, respirators and other equipment in the use, handling, storage and disposal of hazardous chemicals. Exercise care in handling compressed gases to ensure safe working conditions and to preserve a healthy environment.
  • Perform other related duties of a comparable or lower skill level as assigned such as hydrostatics and helium testing on a wide variety of parts. As required, instruct and check work of one or two other fabricators to provide direction and coaching involving new processes, procedures and other quality related issues. Maintain a clean and orderly work area. Refer only the most unusual or difficult situations to working leader or supervisor.


Required: 1 to 4 years of directly related experience. 2-3 years trade school highly desirable. Prior experience in the Aerospace industry is a plus.

  • Requires well rounded knowledge of applied mathematics including, algebra, geometry, trigonometry and handbook formulae to read and interpret drawings, specifications and complicated sketches. Basic computer skills and the ability to navigate through manufacturing and quality systems.
  • Requires ability to operate a variety of fabricating machines and precision measuring instruments. 
  • Must have a thorough knowledge of fabrication practices including characteristics of metals, alloys and non-metals. 

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.

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