Senior Semiconductor Engineer — Coherent Corp.

Job Requirements

Company Overview

Coherent Corp. is a vertically integrated manufacturer of lasers, engineered materials, and networking components, serving industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. (Verbatim positioning Coherent uses across its real postings.)

Role Summary

We're hiring a Senior Semiconductor Engineer to own process/device development and yield improvement for compound semiconductor products (e.g., InP, GaAs, VCSEL, or epitaxial process lines — confirm which division/product line before posting). The role bridges device physics, fab process control, and cross-functional product integration.

Responsibilities

Drive process development, qualification, and yield optimization for semiconductor wafer fabrication (epitaxy, etch, lithography, or scribe/break — line-specific)

Lead root-cause and corrective-action investigations for process excursions using SPC/FMEA methodology

Partner with R&D, product engineering, and manufacturing to transition new designs from prototype to volume production

Own process documentation, control plans, and change qualification (QRB) processes

Mentor junior process/test engineers

Support customer-facing technical reviews and design-win activities where applicable

Work Experience

Required Qualifications

BS/MS in Electrical Engineering, Materials Science, Physics, Chemical Engineering, or related field

5–7 years of hands-on semiconductor process, device, or test engineering experience

Working knowledge of SPC, FMEA, and Six Sigma methodologies

Experience with cleanroom/ESD protocols and wafer/die handling

Programming/scripting (Python, C) for process data analysis and test automation

Data analysis tools: JMP, MATLAB, or equivalent

Preferred

Experience with III-V compound semiconductors (GaAs, InP) or VCSEL/laser diode processes

ISO 9001/14001 exposure

ASQ or Six Sigma Black Belt certification