R&D Intern

Sonendo, Inc. is a medical technology company with a unique mission to lead the transformation of dentistry through Sound Science®. We are currently building a high-performance team with a passion for creativity and innovation that is committed to collaboration and integrity. We believe our success is based on developing disruptive technologies, and we strive to achieve excellence in our products and services by attracting energetic, entrepreneurial individuals who are committed to this vision.

Applications accepted starting 6/18/2026. The deadline to apply is subject to change. To apply, please submit your application through job boards, our company website, or call (949) 766-3636 for assistance.

Essential Duties and Responsibilities: 

The R&D Intern is a member of the R&D team responsible for design, analysis, fabrication, and testing of mechanical systems, sub-systems, and components in support of new product development and the improvement of existing products. This role offers a unique opportunity to gain hands-on experience, learning the intricacies of design and product lifecycle in a professional setting while receiving mentorship from experienced Engineering staff. This internship is designed to bridge the gap between academic theory and industry practice, allowing contribution to real-world projects.

• Supports design activities under the guidance of a senior level engineer.
• Designs, assembles, and validates experimental setups.
• Performs engineering and in-vitro testing per protocol, acquire and process data.
• Maintains compliance with Quality System procedures and company policies.
• Assists in creating and updating technical documentation, including engineering drawings, specifications, and test reports.
• Assists with developing 3D models and blueprints for prototype components.
• Collaborates with cross-functional teams to support prototype fabrication and assembly.
• Participates in design reviews and brainstorming sessions to innovate and develop solutions to engineering challenges.
• Conducts research on competing technologies or industry materials to support ongoing project development.
• Performs other duties as assigned by supervisor.

Education and/or Work Experience Requirements: 

• Currently enrolledin or a recent graduate of a bachelor’s program in Engineering, science, or a related field.
• Previous related internship experience a plus.
• Exposure to tools and practices associated with electro-mechcanical design and testing.
• Engineering and/or In-Vitro Lab experience.
• Ability to perform basic troubleshooting of system problems.
• Excellent written and verbal communication skills.
• Demonstrated ability to work under pressure and in collaborative team environments.

Physical Requirements:  

• Ability to safely and successfully perform the essential job functions consistent with the ADA, FMLA and other federal, state and local standards, including meeting qualitative and/or quantitative productivity standards.
• Ability to maintain regular, punctual attendance consistent with the ADA, FMLA and other federal, state and local standards
• Must be able to safely move up to 25 lbs
• The ability to communicate information and ideas so others will understand. Must be able to exchange accurate information in these situations.
• Must be able to remain in a stationary position for 50% of the time.
• Must be able to occasionally move about inside the office to access file cabinets, office machinery, etc.
• The ability to observe details at close range (within a few feet of the observer).

Compensation and Benefits:
We pay competitively. The base salary/hourly rate range for this position is $20/hr – $25/hr, depending on experience, qualifications, and location. Additional compensation such as annual or commission bonuses may be available.

Full-time employees are eligible for a comprehensive benefits package including medical, dental, vision, HSA, FSA, life, disability, 401(k), CA paid sick leave, and paid time off. Additional company-sponsored benefits, such as parental wage replacement and Employee Assistance Program (EAP), will be discussed upon hire.

Sonendo, Inc. fosters a collaborative, innovative workplace where every team member’s ideas contribute to our success.
We are an Equal Opportunity Employer.
No recruiters, please.