Thermo Fisher Scientific

Sr. Optical System Engineer

Thermo Fisher Scientific$100K — $130K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Advanced Degree plus 3 years experience or Bachelor's Degree plus 5 years experience in technical systems development, especially in electron microscopy or semiconductor equipment.
  • Background in Physics, Mechanical, Electrical, Systems Engineering or similar technical field preferred.
  • Specialized certifications (e.g., Six Sigma) are a plus.
  • Strong grasp of systems engineering principles.
  • Proficient in relevant software tools (Python, MATLAB, CAD).
  • Familiarity with electron optics, high voltage systems, vacuum technology, precision mechanics, and automation.

Responsibilities

  • Collaborate with multidisciplinary teams to create innovative solutions for scientific instruments.
  • Drive the development of next-generation electron microscopy and analytical tools.
  • Utilize advanced technologies to address challenges in semiconductor manufacturing and life sciences.
  • Apply systems engineering principles for requirements management and architecture development.
  • Guide technical projects and mentor team members to ensure project success.
  • Document designs and processes clearly to assist in development and compliance.
  • Engage in cross-functional collaboration to meet product quality and customer needs.

Benefits

  • Standard work schedule (Monday to Friday).
  • Opportunity to work in an innovative R&D environment.
  • Access to advanced technology and tools.
  • Support for professional development and specialized certifications.
  • Collaborative and multidisciplinary work culture.
Full Job Description
Work Schedule
Standard (Mon-Fri)

Environmental Conditions
Able to lift 40 lbs. without assistance, Laboratory Setting, Office

Job Description

LOCATION: This is a fully onsite position based at our Madison, WI site. Unfortunately, relocation assistance is NOT provided.

Must be legally authorized to work in the United States without sponsorship now or in the future.
Must be able to pass a comprehensive background check, which includes a drug screen.

Description

We are seeking an experienced Optical Systems Engineer to architect and develop advanced optical systems for FTIR, NIR, and Raman spectroscopy instruments. This role focuses on system-level design, optical modeling, and cross-functional integration of complex photonic systems. The ideal candidate combines strong optical expertise with systems engineering experience and thrives in a collaborative, multidisciplinary environment.

Key Responsibilities

  • Design and develop optical systems, including imaging, illumination, sensing, or laser-based subsystems


  • Translate product requirements into optical architectures and system-level specifications


  • Perform optical modeling and simulation (e.g., Zemax, Code V, LightTools)


  • Drive tolerance analysis, error budgeting, and performance optimization


  • Collaborate with mechanical, electrical, software, and manufacturing teams to ensure robust system integration


  • Own system-level trade studies and design decisions balancing performance, cost, and manufacturability


  • Guide prototyping, testing, and validation of optical systems


  • Develop and execute test plans; analyze data and iterate designs accordingly


  • Support transfer to manufacturing, including alignment strategies and yield improvement


  • Troubleshoot complex optical/system-level issues in development and production


  • Mentor junior engineers and contribute to technical leadership within the team


  • Interface with external vendors and partners for components and subsystems


Requirements

  • Advanced Degree in Optical Engineering, Physics or related discipline plus 3 years of experience, or Bachelor's Degree plus 5 years of experience developing complex optical systems


  • Strong understanding of optical principles, including geometrical optics, wave optics, diffraction, and polarization


  • Experience with optical design and simulation tools (e.g., Zemax)


  • Experience designing and analyzing optical systems such as imaging systems, lasers, fiber optics, or photonic devices


  • Familiarity with laboratory optical equipment (e.g., interferometers, spectrometers, alignment tools)


  • Knowledge of optical tolerancing, fabrication processes, and metrology techniques


  • Strong analytical and problem-solving skills with the ability to optimize complex system performance


  • Experience collaborating with cross-functional teams across mechanical, electrical, and software engineering


  • Programming experience (Python, MATLAB, or similar) for data analysis, modeling, or automation


  • Experience working in regulated development environments (e.g., medical devices, aerospace, defense) is a plus


  • Knowledge of opto-mechanical design considerations and thermal effects in optical systems


  • Familiarity with ISO or other relevant industry standards


  • Experience leveraging AI/ML or generative AI tools to enhance data analysis, optical modeling, or engineering productivity (e.g., code generation, data interpretation, or design exploration)


  • Awareness of how AI/ML techniques may be applied to instrument data processing, signal analysis, or system optimization


  • Strong written and verbal communication skills, including the ability to contribute to technical documentation and design reviews


  • Demonstrated ability to manage technical work independently while contributing to team deliverables

About Thermo Fisher Scientific

Thermo Fisher Scientific Careers

Join the vibrant team at Thermo Fisher Scientific, a global leader in serving science and making the world healthier, cleaner, and safer. With a workforce of over 75,000 professionals, Thermo Fisher Scientific offers unparalleled job opportunities and a culture of innovation that propels your career to new heights. Work You’ll Do At Thermo Fisher Scientific, you will be part of a team that is dedicated to enabling our customers to make the world healthier. Whether you are involved in the development of life-saving drugs or innovative environmental solutions, your work will have a profound impact on society. Our commitment to leadership in the industry is unwavering. With Thermo Fisher Scientific, you will lead projects that set standards in scientific inquiry and market leadership. You will work at the intersection of science, technology, and industry expertise, driving digital innovation in every aspect of our business. Join our diverse team of professionals and engage in roles that span across various functions and disciplines. From research and development to marketing and sales, the breadth of job opportunities available means that you can find the perfect match for your skills and passions. Innovative Work As part of our team, you will have access to cutting-edge tools and technologies that foster creativity and innovation. Thermo Fisher Scientific is home to a dynamic range of career paths, all designed to challenge you and help you grow as a professional. Our employment philosophy emphasizes diversity and inclusivity, ensuring that all team members have the opportunity to thrive. We believe in nurturing talent through robust training programs, leadership development, and opportunities for career advancement. Be Part of a Great Team Working at Thermo Fisher Scientific means being part of a global network of enthusiastic, talented, and ambitious individuals. Our culture is built on collaboration, where each member’s unique skills and perspectives are valued. You will enjoy benefits that support both your professional growth and personal well-being. Future-Proof Your Career Embark on a journey of growth and continuous learning with Thermo Fisher Scientific. We offer a variety of training and development programs that cater to your interests and career goals. From internships for budding scientists to leadership training for aspiring executives, our programs are designed to equip you with the skills needed for a successful and fulfilling career. Explore Discover how our commitment to innovation leads to advancements in health and science: [Read More] Learn about our leadership in environmental sustainability and how you can contribute: [Read More] The Thermo Fisher Scientific Difference Our global presence and commitment to innovation mean that your work extends beyond borders and makes a tangible impact worldwide. The collaboration between our teams drives our leadership in the scientific community and contributes to a culture that embraces diversity and fosters professional growth. Stay Connected Join Our Team Search open positions that match your skills and interest. We are always on the lookout for passionate, curious, and driven team players. Explore our job opportunities and find out how you can contribute to our meaningful work. SEARCH THERMO FISHER SCIENTIFIC JOBS Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Customize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding opportunities that await at Thermo Fisher Scientific.
Learn more about Thermo Fisher Scientific
Size
130,000 employees
Market Cap
$213.3 billion
Industry
Net Income
$6.3 billion
Founded
1956
5 Year Trend
+16.5%
Revenue
$32.2 billion
NASDAQ

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