Coherent Corp. · 13 hours ago
Fabrication Manufacturing Engineer
Budd Lake, NJ
Full-time
Onsite
Senior Level
$105K/yr - $155K/yr
7+ years expCoherent Corp. is a global leader in lasers and engineered materials, seeking a Fabrication Manufacturing Engineer to develop and scale advanced polishing and finishing processes for high-performance crystals and optical substrates. The role involves leading process innovation, overseeing fabrication operations, ensuring quality assurance, and supporting production troubleshooting.
Semiconductors
Responsibilities
Lead the development, optimization, and transfer of advanced polishing and finishing processes for NLO crystal and exotic materials including oxides, fluorides, Ge, Si, and sapphire
Drive process capability, yield improvement, and manufacturability from prototype through production
Execute and oversee high-precision fabrication operations such as CNC generating, deterministic corrective finishing, and manual pitch or pad polishing
Work with complex optical geometries including aspheres and freeform surfaces
Ensure world-class optical quality using interferometry (flats and spheres), X-ray diffraction (XRD) for crystal orientation, and spectrophotometry
Translate metrology data into actionable process improvements
Partner with the production floor to troubleshoot equipment and process issues using structured root cause failure analysis (RCFA)
Implement robust technical solutions that improve yield, repeatability, and throughput
Design or support custom fixtures and tooling to enable fabrication of delicate, unconventional, or challenging crystal geometries
Champion continuous improvement initiatives, including automation, robotics, and advanced process controls to scale manufacturing excellence
Qualification
Required
Bachelor's degree in Optical Engineering, Materials Science, Physics, Mechanical Engineering, or a related field required
Demonstrated experience handling and processing crystals, including crystal orientation (e.g., C-axis sapphire)
7+ years in an optics manufacturing or production environment
Hands-on experience with CNC machining, diamond turning, and double-sided polishing
Proficiency with CAD tools such as SolidWorks or AutoCAD
Strong command of Design of Experiments (DOE) and Statistical Process Control (SPC)
Comfortable maintaining, improving, and debugging fabrication equipment
Ability to mentor technicians, collaborate cross-functionally, and clearly communicate technical risks and tradeoffs to leadership or external partners
Preferred
Master's or PhD preferred for highly specialized crystal or optical roles
Benefits
Competitive compensation program
Company
Coherent Corp.
Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems.
10001+ employees
H1B Sponsorship
Coherent Corp. has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (20)
2024 (18)
2023 (16)
2022 (6)
2021 (7)
2020 (9)
Funding
Current Stage
Late StageLeadership Team
Julie Eng
Chief Technology Officer
Yajun Wang
Networking Segment CTO
Recent News
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2025-12-19
2025-10-07
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