Software Engineer III

Work Schedule

Standard (Mon-Fri)

Environmental Conditions

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. 
   

As part of the Thermo Fisher Scientific team, you will discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to life every day: enabling our customers to make the world healthier, cleaner, and safer.

We provide our global teams with the resources needed to achieve individual career goals while helping take science a step beyond. Our work supports some of the world’s toughest challenges, from protecting the environment and ensuring food safety to helping find cures for cancer.

Job Description:

Thermo Fisher Scientific is seeking a Software Engineer III to join a collaborative, global team developing innovative software solutions for advanced scientific instruments.

In this role, you will design, develop, test, and maintain sophisticated software applications used to control microscopes and analytical instruments. Your work will enable breakthrough research across fields such as semiconductors, life sciences, and materials analysis.

You will collaborate closely with software engineers, scientists, hardware engineers, and domain experts to translate complex scientific and technical requirements into reliable, scalable software solutions. Working in an agile environment with international teams, you will contribute to technical innovation, improve software quality, and help deliver products that support discoveries with real-world impact.

Key Responsibilities:

• Design, implement, test, and maintain software applications for scientific instruments and related systems.

• Develop high-quality software using modern C++, C#, Python, or similar technologies.

• Collaborate with cross-functional teams, including scientists, systems engineers, hardware engineers, and product stakeholders.

• Translate complex technical and scientific requirements into robust software designs.

• Apply object-oriented design principles, data structures, algorithms, and software design patterns.

• Participate in agile development processes, including planning, refinement, reviews, and retrospectives.

• Contribute to CI/CD pipelines, automated testing, and test-driven development practices.

• Support hardware and instrument integration activities as needed.

• Troubleshoot, debug, and resolve software issues across complex systems.

• Work independently while also mentoring, supporting, and collaborating with team members.

• Communicate effectively with global teams and stakeholders.

Basic Qualifications:

• Masters degree with 3+ years of software development experience, or bachelor’s degree with 5+ years of software development experience in a commercial environment.

• Degree in Computer Science, Software Engineering, Computer Engineering, or a related technical field preferred.

• Strong proficiency in modern C++, C#, or Python.

• Experience with object-oriented software design, design patterns, data structures, and algorithms.

• Experience with Git or other version control systems.

• Experience with automated testing, test-driven development, and software quality practices.

• Experience with CI/CD tools and modern software development workflows.

• Strong analytical, troubleshooting, and problem-solving skills.

• Strong written and verbal communication skills in English.

• Ability to work independently and collaborate effectively in cross-functional, global teams.

• Ability to travel occasionally, approximately 5–10%, for collaboration with global teams.

Preferred Qualifications:

• Experience working in an agile development environment; SAFe experience is a plus.

• Experience integrating software with hardware, instruments, devices, or embedded systems.

• Experience developing software for scientific, analytical, imaging, semiconductor, or laboratory instrumentation.

• Ability to understand and work with complex technical or scientific requirements.

• Experience mentoring or supporting other engineers.

• Familiarity with regulated, quality-focused, or high-reliability software environments.