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Senior Python Developer Jobs

Coherent

Onsite

Hybrid

Responsibilities
<ul>
 <li>Be a key member of the semiconductor metrology lab, supporting R&amp;D and production manufacturing.</li>
 <li>Develop, qualify, and maintain measurement recipes for inline and offline metrology tools (e.g., thickness, roughness, composition, stress, defect quantification, etc.).</li>
 <li>Support metrology process control for materials moving through the production line, ensuring measurement accuracy, repeatability, and throughput.</li>
 <li>Analyze large and complex datasets to identify trends, process excursions, and root causes; communicate findings clearly to process engineering and operations teams.</li>
 <li>Define, track, and report key performance indicators (KPIs) related to metrology capabilities, tool utilization, cycle time, and measurement uncertainty.</li>
 <li>Collaborate closely with process engineering, manufacturing, quality, and equipment teams to support process development and yield improvement.</li>
 <li>Support tool qualifications, gauge R&amp;R studies, and continuous improvement initiatives for measurement methodologies.</li>
 <li>Establish best practices for data integrity, documentation, and statistical analysis.</li>
 <li>Support technology transfers from development to high-volume manufacturing.</li>
 <li>Interface with equipment vendors to maintain and service all instruments.</li>
 <li>Mentor junior engineers and technicians; provide technical leadership within the metrology function.</li>
</ul>
Technical Skills
<ul>
 <li>Strong background in semiconductor metrology techniques such as optical, X-ray, electron-beam, and bulk/surface analysis methods (e.g., XRD, SEM, AFM, wafer level defect mapping and classification).</li>
 <li>Experience setting up, optimizing, and maintaining measurement recipes on commercial metrology platforms.</li>
 <li>Advanced data analysis skills, including statistical process control (SPC), design of experiments (DOE), and uncertainty analysis.</li>
 <li>Proficiency with data analysis tools and programming environments (e.g., Python, MATLAB, JMP).</li>
 <li>Understanding of semiconductor manufacturing flows and inline metrology integration.</li>
 <li>Familiarity with yield analysis, process control methodologies, and manufacturing metrics.</li>
 <li>Ability to translate complex measurement data into actionable insights for cross-functional stakeholders.</li>
 <li>Strong documentation, presentation, and technical communication skills.</li>
</ul>
Education
<ul>
 <li>Typically requires a minimum of 7 years of related experience with a Bachelor’s degree; or 5 years and a Master’s.degree or a Ph.D.w 3 years exp in Materials Science, Physics, Electrical Engineering, Chemical Engineering, or a closely related field.&nbsp;</li>
</ul>
&nbsp;
Safety Requirements
&nbsp;
All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.
Quality and Environmental Responsibilities
&nbsp;
Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.
Culture&nbsp;Commitment
Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.:
Integrity – Create an Environment of Trust
Collaboration – Innovate Through the Sharing of Ideas
Accountability – Own the Process and the Outcome
Respect – Recognize the Value in Everyone
Enthusiasm – Find a Sense of Purpose in Work
<div>
 
 &nbsp;
</div>
Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.
<div>
 
 &nbsp;
</div>
<div>
 If you need assistance or an accommodation due to a disability, you may contact us at <a href="mailto:talentacquisition@coherent.com" target="_blank" rel="nofollow">talentacquisition@coherent.com</a>.
 
 &nbsp;
</div><h2>Company</h2><div>Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us! Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening. </div>

Senior Semiconductor Metrology Engineer

Senior metrology role requiring 7+ years in materials science/physics/engineering with hands-on data analysis, SPC/DOE, and programming (Python/MATLAB/JMP).

Primary Responsibilities
Product-Level Technical Ownership
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Own yield, variability, and device performance across all manufacturing stages for assigned products.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Lead deep technical investigations into complex yield limiters involving epitaxy, wafer processing, device architecture, inspection, and test systems.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Develop physics-based hypotheses and validate them through structured DOE, statistical modeling, and experimental execution.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Drive yield recovery plans from problem identification through verified improvement.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Serve as the central technical authority for product behavior across internal teams and external customers.
________________________________________
Epitaxy &amp; Reactor Expertise
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Leverage strong understanding of compound semiconductor epitaxy and epi reactor fundamentals.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Understand critical growth parameters including temperature uniformity, V/III ratio, precursor chemistry, chamber pressure, dopant incorporation, thickness control, strain management, and defect formation mechanisms.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Correlate epitaxial variation to downstream optical and electrical device performance.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Partner with Epitaxy Engineering to reduce wafer-to-wafer and run-to-run variability.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Translate device-level failures into actionable feedback for reactor and process optimization.
________________________________________
Advanced Data Analytics &amp; Modeling
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Perform deep dives into large-scale manufacturing datasets using SQL, JMP, Python, or equivalent tools.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Develop multivariate statistical models to isolate root causes of yield loss.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Apply regression analysis, variance decomposition, SPC, and DOE methodology.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Build predictive models for early detection of yield excursions.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Develop automated data analysis workflows to accelerate technical learning cycles.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Translate raw data into defensible, physics-based conclusions.
________________________________________
Wafer Process &amp; Device Integration
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Analyze interactions between epitaxy, lithography, etch, deposition, metallization, inspection (AVI), and electrical/optical test steps.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Identify how upstream variability propagates into final device performance.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Provide Design-for-Manufacturability (DFM) input during new product development.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Reduce process sensitivity through structured experimentation and device-level insight.
________________________________________
New Product Introduction (NPI)
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Own yield performance during new product ramp from development into high-volume manufacturing.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Conduct structured technical risk assessments.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Rapidly identify and mitigate yield sensitivities during early production.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Shorten yield learning cycles using disciplined experimentation and data-driven decisions.
________________________________________
Customer &amp; External Technical Engagement
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Serve as a primary technical interface for key customers on yield, device performance, and reliability topics.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Present complex technical findings clearly and confidently to customer engineering and quality teams.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Lead technical discussions during customer audits and yield reviews.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Support joint root cause investigations and corrective action plans.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Translate internal manufacturing data into customer-relevant performance metrics.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Build customer trust through clear, physics-based explanations of device behavior and variability.
________________________________________
What Success Looks Like
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Sustained improvement in product yield and variability across the full manufacturing flow.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Rapid containment and permanent resolution of yield excursions.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Successful high-yield ramp of new products into volume manufacturing.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Strong correlation established between epitaxial behavior and device-level outcomes.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Development of predictive models that prevent yield loss before it occurs.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Recognition internally and externally as a technical authority on product behavior.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Earned trust from key customers through technical rigor and consistent performance.
&nbsp;
Education &amp; Experience
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; PhD in Electrical Engineering, Applied Physics, Materials Science, or related discipline with strong emphasis on semiconductor device physics or relevant experience with Master/B-Eng.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5+ years of experience in semiconductor device, product, or yield engineering in high-volume manufacturing.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Demonstrated history of independently leading complex technical investigations and delivering measurable yield improvement.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Experience in compound semiconductor or optoelectronic device manufacturing strongly preferred.
&nbsp;
&nbsp;
Required Technical Skills
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Strong foundation in solid-state physics and semiconductor device operation.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Working knowledge of compound semiconductor epitaxy and epi reactor operation.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Understanding of key epitaxial variables including temperature control, V/III ratio, precursor flow stability, pressure control, strain, and dopant incorporation.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Experience correlating material-level variation to device electrical and optical performance.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Advanced proficiency in statistical analysis and DOE methodology.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Proficiency in JMP, Python, R, or equivalent data analysis tools.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Strong SQL skills for querying large manufacturing databases.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Experience with SPC, multivariate modeling, regression analysis, and variance decomposition.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ability to automate data extraction and analysis workflows.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Experience presenting technical material to external customers or executive leadership.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ability to defend technical conclusions under scrutiny.
&nbsp;
Personal Attributes
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Intellectual curiosity and comfort operating in ambiguous technical environments.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; High ownership mindset and accountability for outcomes.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ability to challenge assumptions with data and physics-based reasoning.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Strong cross-functional influence skills.
• &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Clear and confident communicator in both technical and customer-facing settings.
&nbsp;
Safety Requirements
&nbsp;
All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.
Quality and Environmental Responsibilities
&nbsp;
Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.
Culture&nbsp;Commitment
Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.:
Integrity – Create an Environment of Trust
Collaboration – Innovate Through the Sharing of Ideas
Accountability – Own the Process and the Outcome
Respect – Recognize the Value in Everyone
Enthusiasm – Find a Sense of Purpose in Work
<div>
 
 &nbsp;
</div>
Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.
<div>
 
 &nbsp;
</div>
<div>
 If you need assistance or an accommodation due to a disability, you may contact us at <a href="mailto:talentacquisition@coherent.com" target="_blank" rel="nofollow">talentacquisition@coherent.com</a>.
 
 &nbsp;
</div><h2>Company</h2><div>Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us! Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening. </div>

Senior Product & Yield Device Engineer

PhD in Electrical Engineering, Applied Physics, Materials Science or related field; 5+ years in semiconductor device/yield engineering; strong epitaxy and data analytics; capable of leading complex investigations and communicating with customers.

<div style="border-width:0px; font-style:normal; font-weight:400; margin:1em 0px; padding:0px">
 Primary Duties &amp; Responsibilities
</div>
<ul>
 <li>Lead the development, deployment, and production support of AI/ML-driven wafer-level and die-level image processing solutions for Automated Visual Inspection (AVI) tools used in front-end and back-end wafer fab operations.</li>
 <li>Design, implement, and sustain advanced vision and image processing pipelines, including Crack detection and advanced defect classification, Die-to-die and wafer-level image stitching, Optical inspection data analysis</li>
 <li>Develop, train, validate, and maintain machine learning models used in AI-powered optical inspection, ensuring robustness, accuracy, and scalability in high-volume manufacturing environments.</li>
 <li>Integrate AI/ML-based solutions with fab automation systems, leveraging in-situ equipment and process data to enable anomaly prediction and early detection for critical processes.</li>
 <li>Work hands-on in the fab environment with automation team members, operations, process engineering, and equipment engineering teams to deploy, debug, and sustain automation, inspection, and process control solutions.</li>
 <li>Ensure reliable data foundations for inspection and process control applications, including data quality, traceability, and consistency across equipment, inspection, and analytics systems.</li>
 <li>Apply advanced analytics and machine learning techniques to improve inspection throughput and accuracy, process stability and yield, and root-cause identification</li>
 <li>Support high-volume manufacturing operations by responding to production issues, minimizing downtime, and ensuring automation and inspection systems meet fab performance and reliability requirements.</li>
</ul>
<div style="border-width:0px; font-style:normal; font-weight:400; margin:1em 0px; padding:0px">
 Education &amp; Experience
</div>
<ul>
 <li>Minimum 5 years' experience in data analytics in semiconductor, materials, or a related industry; or demonstratable equivalent abilities.</li>
 <li>BS/MS or equivalent degrees in computer science, software engineering, physics, mathematics, statistics or similar STEM field.</li>
</ul>
<div style="border-width:0px; font-style:normal; font-weight:400; margin:1em 0px; padding:0px">
 Skills
</div>
<ul>
 <li>Leadership capabilities to independently lead complex technical initiatives, provide technical direction in AVI, AI/ML, and automation efforts, and influence cross-functional teams without direct authority.</li>
 <li>Strong interpersonal, collaboration, and problem-solving skills, with the ability to work effectively in high-pressure manufacturing environments.</li>
 <li>Experience modeling, analyzing, and validating complex, imperfect real-world manufacturing and inspection datasets, including image and in-situ equipment data.</li>
 <li>Strong understanding of statistical fundamentals and their application to machine learning, defect detection, process monitoring, and anomaly identification.</li>
 <li>Solid knowledge of semiconductor manufacturing processes; background in process engineering, materials science, or related natural sciences is a plus.</li>
</ul>
<div style="border-width:0px; font-style:normal; font-weight:400; margin:1em 0px; padding:0px">
 Working Conditions
</div>
<ul>
 <li>This role is 100% onsite</li>
</ul>
<div style="border-width:0px; font-style:normal; font-weight:400; margin:1em 0px; padding:0px">
 Physical Requirements
</div>
<ul>
 <li>Ability to sustainably work on a computer full-time.</li>
 <li>Willingness and ability to work in a cleanroom environment as needed for system integration, testing, or troubleshooting activities.</li>
</ul>
Safety Requirements
All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.
Quality and Environmental Responsibilities
&nbsp;
Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.
Culture&nbsp;Commitment
Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.:
Integrity – Create an Environment of Trust
Collaboration – Innovate Through the Sharing of Ideas
Accountability – Own the Process and the Outcome
Respect – Recognize the Value in Everyone
Enthusiasm – Find a Sense of Purpose in Work
<div>
 
 &nbsp;
</div>
Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.
<div>
 
 &nbsp;
</div>
<div>
 If you need assistance or an accommodation due to a disability, you may contact us at <a href="mailto:talentacquisition@coherent.com" target="_blank" rel="nofollow">talentacquisition@coherent.com</a>.
 
 &nbsp;
</div><h3>About Company</h3><div>II-VI Aerospace &amp; Defense is a high technology company, offering careers in offices and campuses in California, Colorado, Florida, Pennsylvania, and Ohio. We work with emerging technology in areas of atmospheric sensing and imaging, adaptive optics, optical communications, coherent beam combining, and numerical performance analysis of atmospheric optics systems. II-VI A&amp;D has recently been awarded several new government contracts and we are offering opportunities to leverage your technical experience and interpersonal skills for something more than a simple paycheck. If this sounds like the type of environment you are seeking at this point in your career, and if your background meets these qualifications, please apply. We will offer a competitive salary and benefits. Since II-VI A&amp;D is a rapidly expanding organization, it means that significant opportunities exists for career advancement and professional development.</div><h2>Company</h2><div>Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us! Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening. </div>

Lead Engineer, Automation and Application

Minimum 5 years of data analytics experience in semiconductor/materials or related field; MS/BS or equivalent in STEM.

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