Harness Manufacturing Engineer — In-House Fabrication

Castelion Corporation; Torrance (CA); On-site; USD 85,000 - 110,000; Full time

Benefits offered by this job

Stock incentives

Medical insurance

Vision insurance

Dental insurance

Paid time off

Job summary

Castelion Corporation in Torrance, CA is seeking a Manufacturing Engineer to lead the development and implementation of harness manufacturing for wiring harnesses, cable assemblies, and interconnect systems, supporting both in-house and supplier fabrication as designs move from prototype to scaled production for defense systems.

You will define processes, qualify suppliers, drive on-time delivery with zero defects, and apply Lean methods to improve yield and reduce cost.

Qualifications

• Bachelor’s degree in mechanical, electrical, manufacturing, or related engineering discipline.
• 3+ years of experience in manufacturing engineering with emphasis on wiring harness/cable assembly processes, fabrication, and test.
• Strong familiarity with harness standards (crimping, routing, strain relief techniques), electrical continuity/functional test methods, and assembly best practices.
• Hands-on experience developing manufacturing processes and work instructions for electromechanical hardware.
• Excellent written and verbal communication skills.
• Must be authorized to work in the U.S. and comply with ITAR eligibility requirements.

Responsibilities

• Assembly & Test Procedure – create and maintain work instructions, BOM/MBOM, harness assembly flows, test plans, fixture/tooling specifications, and manufacturing process documentation for prototype and production harness builds.
• Supplier Development & Support – partner with supply chain to qualify and develop external harness fabrication partners, define quality/test criteria (continuity, insulation, functional, hi-pot), and support supplier readiness for production builds.
• Prototype to Production Transition – support design reviews with a focus on design for manufacturability (DFM), design for test (DFT), connector selection, harness routing, and supplier handoff readiness. Facilitate risk analysis and manufacturing readiness reviews (MRRs).
• Testing & Validation – develop and implement harness test procedures and systems for continuity, insulation resistance, high-pot/functional verification, environmental screening when required, and test data analysis.
• Continuous Improvement & Metrics – drive yield improvement, throughput gains, defect reduction, and cost optimization through Lean and CI methodologies.

Skills

Harness standards knowledge

Electrical test methods

Assembly best practices

Process documentation

Written & verbal comms

Education

Engineering degree

Job description

Castelion Corporation in Torrance, CA is seeking a Manufacturing Engineer to lead the development and implementation of harness manufacturing for wiring harnesses, cable assemblies, and interconnect systems, supporting both in-house and supplier fabrication as designs move from prototype to scaled production for defense systems.

You will define processes, qualify suppliers, drive on-time delivery with zero defects, and apply Lean methods to improve yield and reduce cost.