> Markdown version of [/jobs/ext/2621394-senior-applications-scientist](https://www.wearedevelopers.com/jobs/ext/2621394-senior-applications-scientist). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Applications Scientist - **Company:** Onto Innovation - **Location:** Hillsboro, OR, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Python (Programming Language), MATLAB, Software Engineering, Scripting, Data Analytics - **Published:** August 20, 2026 - **Apply:** https://www.adzuna.com/details/5846171965 ## About the Role * 0-3 years of experience and a Bachelor/Master/Ph.D. in Applied Physics, Materials Science, Electrical Engineering, Applied Mathematics or related science and engineering field. Will consider experience versus degree. * Ability to work independently under minimal supervision. * Ability to deliver effective technical presentations to internal and external audiences. * Strong understanding of optical properties of materials and other forms of elastic/inelastic light-matter interaction. * Experience with design of experiments, data science, statistical analysis, scientific programming is a plus. * Proficiency in scripting languages used for data analytics (e.g., MATLAB/Python) is a plus. * Knowledge of numerical techniques, Fourier and wavelet analysis, complex analysis, differential equations, and similar applied mathematical techniques is a plus. * Ability to travel internationally up to 20%. * Ability to work in the fab up to 30%. ## Description Onto Innovation is a leader in process control, combining global scale with an expanded portfolio of leading-edge technologies that include: 3D metrology spanning the chip from nanometer-scale transistors to micron-level die-interconnects; macro defect inspection of wafers and packages; metal interconnect composition; factory analytics; and lithography for advanced semiconductor packaging. Our breadth of offerings across the entire semiconductor value chain helps our customers solve their most difficult yield, device performance, quality, and reliability issues. Onto Innovation strives to optimize customers' critical path of progress by making them smarter, faster and more efficient. Job Summary & Responsibilities Onto Innovation is a leader in process control, combining global scale with an expanded portfolio of leading-edge technologies that include: 3D metrology spanning the chip from nanometer-scale transistors to micron-level die-interconnects; macro defect inspection of wafers and packages; metal interconnect composition; factory analytics; and lithography for advanced semiconductor packaging. Our breadth of offerings across the entire semiconductor value chain helps our customers solve their most difficult yield, device performance, quality, and reliability issues. Onto Innovation strives to optimize customers' critical path of progress by making them smarter, faster and more efficient. Job Summary & Responsibilities * The new hire will have the opportunity to work closely with systems engineers to develop metrology solutions for complex multi-layer, optical critical dimension (scatterometry), and overlay measurements for state-of-the-art logic/memory devices. Duties will include application development and characterization of cutting-edge measurement technologies, creating technology/product presentations, and supporting the account/product activities at customer sites. * Interface with customers to highlight application opportunities and possibilities to strengthen ONTO position in the market. * Perform on-site tool qualification to achieve customer's specifications. * Build and optimize scatterometry and ellipsometry models for both Thin Film and OCD applications to support TD and HVM metrology team. * Collect future development feedback from the field and dispense it to our engineering & marketing group for future development to improve ONTO position within the market. * Deliver technical presentation and perform system demonstration/sample inspection/measurement for customers. * Interface with external customers and internal departments to best determine equipment specifications. * Aid in the design and development of new equipment or re-design of existing systems to meet customer requirements. * Up to 30% of domestic and overseas travel for cross-regional support will be required. ## Related Videos - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [JavaScript? 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