Senior Lithography Engineer

onsemi is seeking a highly motivated and experienced Senior Engineer - Lithography at onsemi's premier 300mm manufacturing facility in Hopewell Junction, East Fishkill, New York; you will focus on delivering robust and efficient Lithography manufacturing processes using problem-solving skills and data analytics. Each day, you will be challenged by working on a diverse set of tools with a world-class team. Responsibilities Responsibilities: Understand and optimize processes and procedures in the Lithography area. Plan and execute experiments for new technologies and processes. Drive activities such as yield and reliability improvements, throughput optimization, cost reduction, and safety improvements. Perform advanced data analysis. Understand and apply SPC principles to establish and sustain robust processes. Respond in an appropriate and timely manner to out-of-control process conditions. Manage the disposition of non-conforming material. Prioritize production support and other responsibilities. Generate written process instruction specifications. Communicate established processing procedures with production operators and process technicians. Contribute to factory operational efficiency by supporting operators, technicians, and engineers. Qualifications Education/Experience: Bachelor’s or Master’s degree in Chemical Engineering, Electrical Engineering, Mechanical Engineering, Materials Science, Physics, or a related degree 10+ years of direct Lithography work experience in the semiconductor industry preferred. Skills: Direct experience with ASML or TEL equipment and processes is preferred. Fundamental understanding of semiconductor device physics. Demonstrated ability to apply and practice SPC and DOE methodology Demonstrated experience with continuous fab improvement in yield, throughput, and cost reduction, preferably in a lean manufacturing environment. Fundamental understanding of standard metrology, inspection, and failure analysis methods, and their applications Advanced data analysis skills. The ability to quickly learn and apply various software applications is required. Energetic, self-motivated, and results-oriented attitude with a strong attention to detail Approachable with an internal customer focus, integrity, and initiative Articulate written and verbal communication skills. Demonstrated track record of being able to work well in a team environment, as well as the drive and desire to provide hands-on support for the site’s operators, technicians, and engineers when needed. Salary:onsemi is excited to share the base salary range for this position is$147,000 to $250,000, exclusive of fringe benefits or potential bonuses.The final pay rate for the successful candidate will depend on geographic location, skills, education, experience, and/or consideration of internal equity of our current team members. We also offer a competitive benefits package. About Us onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world. More details about our company benefits can be found here: We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work. onsemi is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact View email address on click.appcast.io for assistance. Job Info Job Identification 2505562 Job Category Engineering Posting Date 05/21/2026, 09:06 PM Degree Level Bachelors Job Schedule Full time Job Shift Day Locations Building 308 Receiving, Hopewell Junction, NY, 12533, US #J-18808-Ljbffr onsemi