II-VI Aerospace & Defense

Sep 13, 2026
Full time
II-VI Aerospace & Defense Port Richey, FL
Job Description We are seeking a Senior Crystal Growth Engineer in our Port Richey Florida location, with strong experience in oxide crystal growth using the Czochralski technique to lead the development, optimization, and scale-up of crystal growth processes and equipment. This role combines deep process expertise with leadership in the design, specification, documentation, and sourcing of new crystal growth equipment, supporting both development and production needs. Primary Duties & Responsibilities Key Responsibilities Lead the crystal growth process development. Develop and optimize growth recipes including melt chemistry, thermal gradients, motion control, atmosphere control, and diameter control. Drive continuous improvement in crystal quality, yield, and reproducibility. Provide technical leadership in the design, specification, and procurement of new crystal growth equipment. Define raw material specifications (purity, morphology, trace impurities) and...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Fremont, CA
Job Description Primary Duties & Responsibilities Design mechanical aspect of optical transceiver for next generation products: 1.6T, 3.2T OSFP. Must be fluent in Solidworks 3D and 2D drawings, tolerance analysis, thermal simulation using Flotherm is preferred. Document design works, BOM, Agile release, PDME collaboration. Collaborate with EE and Optical expert to integrate into the product. Perform MCR, MDR to document design progress. Occasional oversea travel to resolve DFM with vendors and factory. Education & Experience B.S. or M.S. in Mechanical Engineering. 2+ years of mechanical design experience. Knowledge of a variety of (metal) manufacturing methods, e.g. machining, stamping, molding, welding, brazing, casting, plating, 3D printing, etc. Knowledge and experience in sheet metal fabrication and rack and chassis designs Strong analytical and computational skills in structural, heat transfer, fluid dynamics, and tolerance studies for...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Fremont, CA
Job Description Primary Duties & Responsibilities Development Engineering Leadership: Oversee the entire mechanical engineering design and integration effort on the test, assembly, characterization equipment and related components for high-power CW lasers, high speed PD, and/or co-packaged optics at both R&D-level and mass-production-level. Manufacturing Collaboration: Work closely with R&D, manufacturing teams and Fremont product engineering and logistic team to address needs and optimize performance. Cross-Functional Teamwork : Collaborate with Fremont Product Engineers, Design, Planning, Logistic team to ensure good quality product on time delivery on schedule Education & Experience A Master's degree or higher in Mechanical Engineering, Applied Physics, Materials Science, or related field. At minimum 5 years of industrial experience in engineering development, preferably with a focus on automated semiconductor production or...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Mount Olive, NJ
Job Description Primary Duties & Responsibilities Responsible for leading the introduction of new crystal components, optical elements, and photonic subassemblies from concept through production release, with a strong focus on supporting external customer programs and accelerating time-to-market. Serves as the primary technical interface between customers, engineering, and manufacturing teams throughout the product qualification and commercialization process. Collaborates closely with design engineers across global Coherent locations to ensure successful transition of new products into manufacturing. Evaluates prototype requests for technical feasibility, manufacturability, and scalability, including assessment of material selection-particularly nonlinear optical materials-phase-matching requirements, manufacturing tolerances, inspection methods, and test strategies. Develops a deep understanding of customer applications, including a wide range of laser platforms and...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Dallas, TX
Job Description Primary Duties & Responsibilities Product, Technology Development, and Program Management (60%) Design and deploy new thermal and thermoelectric products with minimal manager supervision to meet or exceed customer technical requirements. Conceive of and perform thermal-mechanical design/modeling analyses using both internal TE design software and Ansys Mechanical simulation tools. Independently verify model and design results for accuracy using first-law principles and empirical testing. Manage assigned projects with minimal manager supervision to ensure and adherence to project delivery dates and budgets. Effectively use application tools (spreadsheets, modeling tools, product management processes, etc.) to meet or exceed schedule targets. Follow the Product Development Process and actively maintain project statuses in the Phase Gate project development tool. Participate in internal and external Quality audits. Proactively identify...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Port Richey, FL
Job Description Key Responsibilities Lead the crystal growth process development. Develop and optimize growth recipes including melt chemistry, thermal gradients, motion control, atmosphere control, and diameter control. Drive continuous improvement in crystal quality, yield, and reproducibility. Provide technical leadership in the design, specification, and procurement of new crystal growth equipment. Define raw material specifications (purity, morphology, trace impurities) and acceptance criteria. Create and maintain engineering drawings, layouts, and tooling designs for CZ furnaces, hot zones, and related hardware. Author, review, and maintain work instructions, SOPs, and process documentation. Define equipment requirements, performance specifications, and acceptance criteria. Collaborate with vendors on the design and customization of furnaces, power supplies, and hot zone components. Support installation, commissioning, and qualification of new crystal growth...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Monroe, CT
Job Description Primary Duties & Responsibilities Lead and develop a small team of engineers and technical professionals, providing direction, coaching, performance management, and career development to ensure successful execution of department and business objectives. Plan, prioritize, and allocate engineering resources across multiple projects and operational initiatives. Establish project scope, objectives, schedules, equipment requirements, and cost estimates to ensure timely and effective delivery. Lead cross-functional engineering projects from concept through implementation, coordinating activities across engineering, operations, quality, supply chain, and commercial teams to achieve business goals. Provide technical leadership and subject matter expertise in manufacturing processes, advanced materials, and product development. Support troubleshooting efforts and resolution of complex technical issues affecting production, quality, cost, and delivery. Drive...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Woburn, MA
Job Description Are you passionate about semiconductor fabrication, thin-film technologies and solving complex manufacturing challenges? At Coherent, you will help develop and improve the processes used to manufacture advanced thin-film tunable filters. Working across both manufacturing and product development, you will play an important role in improving wafer and chip yield, reducing fabrication costs and shortening production cycle times. This is a hands-on, on-site engineering position where your ideas and technical expertise will directly influence product performance and manufacturing excellence. What You'll Do Support manufacturing and development activities for thin-film tunable filters. Work with key fabrication processes, including: Photolithography. Wet and dry etching. Thin-film deposition. Wafer and chip metrology. Develop, optimise and document fabrication processes. Analyse wafer measurement data and resolve results that fall outside process...
Sep 10, 2026
Full time
II-VI Aerospace & Defense Newark, DE
Job Description Primary Duties & Responsibilities Partner with operators, production supervisors, engineers, and R&D teams to improve manufacturing processes and product quality Spend significant time on the production floor observing processes, troubleshooting issues, and identifying improvement opportunities Lead and support process improvement projects focused on yield improvement, scrap reduction, throughput, and quality Investigate process and product issues using structured problem-solving techniques and data-driven decision making Develop and execute experiments to better understand process behavior and improve manufacturing performance Support the transfer of manufacturing processes between facilities and help ensure successful implementation across sites Build expertise in ceramic forming processes, thermal processing, and advanced materials manufacturing Document process improvements and support the development of manufacturing procedures...