Quoting Engineer: Cost Estimator for Custom Assemblies

ISC - Interconnect Solutions Company; Fountain Valley (CA); On-site; USD 95,000 - 110,000; Full time

Job summary

ISC - Interconnect Solutions Company in Fountain Valley is seeking a Quoting Engineer (Application Engineer) to lead cost development for custom manufactured assemblies. You will translate customer drawings into BOMs, labor estimates, and manufacturing cost models.

This desk-based role partners with Sales, Manufacturing Engineering, Sourcing, and Operations to deliver accurate, competitive quotes that support growth and margin.

Qualifications

• 2–5+ years in manufacturing, engineering support, estimating, or technical quoting.
• Experience in a direct manufacturing environment.
• ERP / MRP system experience.
• Ability to read and interpret assembly drawings, schematics, and documentation.
• Strong analytical skills with understanding of manufacturing cost drivers.
• Ability to balance speed and accuracy in a high-volume, deadline-driven environment.

Responsibilities

• Develop accurate Bills of Materials (BOMs) to support quoting and production readiness.
• Prepare detailed labor estimates and manufacturing cost models for custom assemblies.
• Identify cost drivers including materials, labor, tooling, and process requirements.
• Support quote revisions, re-quotes, and engineering changes, including variance analysis.
• Review customer drawings, specifications, and technical documentation to define scope and requirements.
• Translate customer requirements into manufacturing assumptions, routing, and process steps.
• Evaluate manufacturability and identify risks, gaps, or opportunities in design and process.
• Enter and maintain BOM, labor, and routing data within ERP and quoting systems.
• Ensure accuracy and integrity of data used for quoting and downstream operations.
• Partner with Manufacturing Engineering, Sourcing, and Operations to validate cost assumptions and manufacturing approaches.
• Communicate technical and cost-related considerations and trade-offs clearly to internal stakeholders.
• Contribute to the improvement of estimating tools, templates, and quoting processes.
• Apply knowledge of materials, components, and manufacturing processes (cable, harness, electromechanical assemblies).
• Perform other duties as assigned in support of business needs.

Skills

Cost estimation

BOM development

Manufacturing cost modeling

Cross-functional collaboration

Technical quoting

Tools

ERP/MRP system

Job description

ISC - Interconnect Solutions Company in Fountain Valley is seeking a Quoting Engineer (Application Engineer) to lead cost development for custom manufactured assemblies. You will translate customer drawings into BOMs, labor estimates, and manufacturing cost models.

This desk-based role partners with Sales, Manufacturing Engineering, Sourcing, and Operations to deliver accurate, competitive quotes that support growth and margin.