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Mechanical Design Engineer III, Senior
Research amp; Development, Environmental
1 regular full-time position, located on-site in Logan, UT
Closing Date: End of Day, July 7, 2026
Our teams design and build products that make a difference to people all over the world. Whether the application is small or large, we take pride in what we design, build, and provide to our customers. Our teams approach every problem with integrity, curiosity and creativity, in order to continually work towards creating better products that solve real-world problems. We are seeking a Senior Mechanical Design Engineer III to join us and help us continue our work towards designing and creating the best possible solutions to meet the evolving needs of our global customers.  
We Are Campbell Scientific 
We work to make a difference and help those working to advance science and technology for the benefit of humankind. Through our advanced measurement systems, our goal is to provide key insights to people using science and technology to solve massive global challenges including severe weather, climate change, limited natural resources, sustainable food production, energy production and distribution, and infrastructure safety. 
What’s in it For You? 

- A premium benefits package. We have competitive Paid Time Off; Medical, Dental, Vision, and Hearing Insurance with no premiums based on Full Time 40-hour weeks; Long-Term and Short-Term Disability; AD amp;D; 401(k) and a Profit-Sharing Plan; and Gym Memberships.  

- Industry competitive salaries.  

- A great work culture where we work hard and make the time to enjoy both our work and the people around us. 
- Challenging and engaging work that makes a difference on a global scale. 
What You’ll Work On  
This position will work in the environmental research product development group on new sensor design.
The Senior Mechanical Design Engineer is responsible for the mechanical design, analysis, and testing of electronic instrumentation and measurement systems. Design work will likely include 3D machining, sheet metal, plastic molding, optics, fluids, and gas flow. Responsibilities include the selection and definition for materials, processes, mounting, packaging, analysis (thermal, vibration, etc.), and other mechanical issues arising in the design of electronic instrumentation and measurement systems.
The Senior designation for this role indicates an individual with additional expertise and years of experience. A senior engineer applies intensive and diversified knowledge of engineering principles and practices in broad areas of assignments. This requires the use of advanced techniques and the modification and extension of theories, precepts, and practices of mechanical engineering and related sciences or disciplines. In the course of product development, a senior engineer is able to exercise independent judgment and decision-making on common engineering problems and methods and receive consultation on more difficult problems.
You’ll Support Your Team by Performing the Following Key Tasks
- Create and maintain a strong culture in accordance with Campbell Scientific’s core ARCTIC values -- Accountable, Respectful, Client-Centric, Team-Oriented, Innovative, Continually Improving.
- Design Engineering
- Design new products using sheet metal, metal machining, plastics, optics, fluids, gases, etc.
- Maintain existing products with design updates and improvements.
- Analyze designs for thermal, flow, vibration, structure, etc.
- Design manufacturing processes and integrating with existing manufacturing processes.
- Verification and validation testing of components and systems.
- Develop documentation for parts and processes.
- Leadership
- Senior engineers often mentor, supervise, and review the work of other engineers and technicians.
- Senior engineers may manage small projects that do not have a dedicated project manager.
- Senior engineers represent the organization as needed to resolve significant questions to audiences both internal and external to the organization.
- Regularly coordinate and communicate with reporting and presentations to stakeholders.

What We're Looking For
- Bachelor’s degree in mechanical engineering (or equivalent). Preference for a master’s degree.
- 7-10 years of experience in product development
- Demonstrated technical problem-solving skills and creativity
- Excellent time management
- Required skill subjects:
- 3D modeling
- Thermodynamics
- Fluid mechanics
- Infrared optics
- Electro-optics
- General physics
- Gas physics
- Spectroscopy
- Additional preferred skill subjects:
- Fourier analysis
- Digital signal processing
- Ultrasonic acoustics
- Materials science
- Optical simulation software
- Advanced machining techniques

Work Environment amp; Physical Requirements
- Permanent remote work is not an option for this position
- Must be able to travel occasionally (domestic or international).
- Work is primarily performed in an office setting. Occasional field work may be expected requiring minor lifting and outdoor exposure.
- Must be able to lift, carry, and maneuver up to 40 lbs. of equipment over short distances as needed during fulfilling job responsibilities. 

Want to know more about Campbell Scientific, the culture, and more? Use the following YouTube link: https://www.youtube.com/watch?v=1hiH_2Mrkmo  
Want to see what other opportunities there are to join our team? Visit CampbellSci.com/open-positions 
The above statements describe the general nature and level of work being performed in this job function. This is not intended to be an exhaustive list of all duties and indeed additional responsibilities may be assigned. 
Campbell Scientific is an EQUAL OPPORTUNITY EMPLOYER.