Staff Optical Scientist


Shoreview, MN, US, 55126

Who Are We?
Are you someone that likes new challenges? Do you want to explore new technologies and help solve some of the world’s most difficult problems, like air quality and safety solutions? At TSI, these opportunities are real. Our engineers work with industry-leading experts both internally and externally. We encourage and enable our engineers to get into the field with customers to better understand their issues and solve their problems. At TSI, you make a difference – every day.


Staff Optical Scientist at TSI
The primary role of the Staff Optical Scientist is to lead the modeling, design, and development of laser and optical assemblies for use in various measurement technologies.  A person in this role will serve as a subject matter expert in optics throughout the organization and will create test plans, author test reports, work with technicians to perform tests, and document the test results.  This person will have contact with the systems engineers, technicians, design engineers, project management, metrology, quality, marketing, sales, customers, and tech support.

The Staff Optical Scientist will require a strong working knowledge of mathematical modeling tools, electronics, electro-optics, laser physics, light scattering theory, sensor technology, and metrology.  Among other tasks, the Staff Optical Scientist will work with multi-disciplinary design teams to define technical requirements, determine feasibility, and lay out and maintain a technology roadmap for future products.  The optical solutions will have applications in aerosol physics, particle counting, gas concentration measurement and speciation, agriculture and seed counting and control, ventilation/humidity/air flow/velocity, and outdoor air quality.


What Will You Do?

In order to grow and build a successful career with TSI, you will:

  • Support existing methods and contribute ideas to improve the company’s core competency in areas such as spectroscopy, instrumentation design, lasers, particle counting and sizing.
  • Evaluate existing methods and develop improved methods for measurements and instrumentation.
  • As needed, write, comment, and de-bug software/modeling code for optics and other models accurately and efficiently while following TSI coding standards.
  • Publish papers and generate patent applications relating to the company’s measurement needs.
  • Participate on project teams and attend technical reviews offering insights on detection possibilities.
  • Keep active in the fields of interest by reviewing literature, interacting with existing and potential collaborators, and networking with industrial and academic colleagues.
  • Work with leaders in the field to develop and implement advanced optical measurement techniques. This can include working from published literature or directly with developers of licensed technologies.
  • Complete other assignments and special projects as requested.
  • Participate in technical feasibility projects.
  • Provide consulting across the organization to address problems and recommend solutions.
  • Develop and execute research, feasibility, verification, and validation subsystem and system level test plans.
  • Lead technicians in the testing effort.
  • Mentor technicians on performing tests, documenting test results, and providing a physics-based explanation of what is being tested.
  • Respond to advanced technical questions from the field.
  • Participate in technical reviews offering insights on design, especially from a customer’s perspective.
  • Participate in design reviews. Give critical and constructive feedback to improve the reviewed designs.
  • Work cooperatively with other departments to develop best practices.


What Do You Need?

  • MS or PhD (PhD preferred) in physics, applied physics, electrical engineering, optical engineering, mechanical engineering, or similar field from an established research institution
  • Minimum of 5 years of experience in a product development environment as a scientist or test engineer
  • Electro-optics and laser physics as applied to instrumentation
  • Thorough understanding of laser operation and non-linear characteristics
  • Physical optics: diffraction, polarization
  • Geometric optics: Ability to design and/or specify special-purpose lenses; aberration
  • Light scattering theory and practical applications
  • Experience with optical modeling using tools such as Matlab, Mathcad, Zemax, or similar
  • Excellent hands-on experimentalist, rigorous documentation, and reporting
  • Strong understanding of problems and best-practice solutions in detecting, counting, and sizing particles
  • Strong understanding problems and best-practice solutions with photometers
  • Good working knowledge of fluid mechanics, thermodynamics, heat transfer, and optics
  • Experience converting requirements into tests



  • Experience in photonics
  • Understand problems and known solutions in detecting, sizing and counting aerosol particles
  • Knowledge of signal processing techniques
  • Experience leading technicians
  • Knowledge gas measurement techniques (NDIR, EC, and PID)
  • Performing uncertainty analysis of complex calibration systems
  • Developing products used for environmental monitoring applications


What Can We Give You?
At TSI, our employees are our most valuable assets, and we care about their health and happiness. We offer a competitive benefits program to keep our employees and their family members protected and foster a healthy work-life balance. Additionally, we are committed to employee development and growth, and encourage and foster an environment of collaboration, and innovation. Our work has meaning and the products we design and build help protect people and the environment.

Dress for your day: We want our employees to be comfortable at work and we know they are more productive when they’re comfortable. The dress for your day policy allows employees’ discretion to select appropriate dress for the business of each workday.

Free Beverages/On-site Cafeterias: Enjoy complimentary coffee, tea and hot chocolate each day at work. We also have two large cafeterias employees can eat lunch in, as well as an outside patio area that employees can enjoy during the summer months.


Benefit Offerings: Competitive medical insurance plans, life insurance, short-term and long-term disability, 401K Employer Contribution, Flexible Spending Account, Education Assistance, and more.


Legal authorization to work in the United States without the need for sponsorship.  We require proof of eligibility to work in the United States. 


TSI provides trusted measurement, application guidance, and data analytics solutions that enable our global customers to make informed decisions.  We are creating a better world by helping protect people, products and the environment, as well as by optimizing research and industrial processes.

Nearest Major Market: Minneapolis

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