Calyxo, Inc. is a medical device company headquartered in Pleasanton, California, USA. The company was founded in 2016 to address the profound need for improved kidney stone treatment. Kidney stone disease is a common, painful condition that consumes vast amounts of healthcare resources each year. Our team is led by executives and investors with a proven track record of commercializing paradigm-shifting devices to meet unmet needs within urology.

Are you ready to change the future of kidney stone treatment? We are seeking high achievers who want to be part of a dynamic team working in a fun, diverse atmosphere.

As the EE/Vision Systems Intern, you will contribute significantly to an active R&D program, taking on areas of development such as EE/Vision sub-system design characterization/analysis, test method development, and test execution. You will have experienced EE and Vision engineers located both remotely and locally in Pleasanton as technical mentors, along with your direct supervisor, the Director of Vision & Sensor Systems. You will work closely with other R&D functions such as Instruments (Mechanical), Systems, and Software Engineering, as well as cross-functional partners in Quality, Manufacturing and Clinical Development Engineering.

In This Role, You Will:

Assist in development, testing, and analysis of camera & sensor electronic/optical sub-systems
Partner with an engineer to design, prototype and evaluate electronic/optical sub-systems and test fixtures
Perform optical and electronic bench testing, debugging and data analysis
Perform root-cause analysis for prototype and production device failure modes
Prepare design documentation, test protocols and reports
Perform other duties as required.

Who You Will Report To:

Director, Vision & Sensor Systems

Requirements:

Undergraduate (current junior/senior) or graduate student pursuing a BS or advanced degree in electrical engineering, biomedical engineering or optical engineering
Minimum 2 years experience in analog and digital circuit design and debug
Work location: Pleasanton, CA
Travel: 0%
Full time employment
Ability to read and understand PCBA schematics/drawings/BOMs and electronic component datasheets
Proficiency with Python for data analysis and measurement automation
Hands on laboratory electronics skills including soldering, cable harness assembly, and operation of test equipment (oscilloscopes, multimeters, power supplies)
Experience in one or more of the following areas: optical component/system design & characterization, image signal processing algorithms, image sensor hardware electronics
Ability to work in a Linux environment
Strong attention to detail
Excellent verbal and written communication skills
Eagerness to learn and accept challenges
Ability to solve problems and analyze data
Ability to think and work independently and in teams
Compliance with relevant county, state, and Federal rules regarding vaccinations.

Preferred Qualifications:

Prior internships or co-terms in the medical device industry, or structured coursework focused on medical device development.

What We Offer:

At Calyxo, you will be part of a knowledgeable, high-achieving, experienced and fun team. You will work in a diverse work environment with experienced, proven leaders and have an opportunity to shape our company culture. You will experience constant learning and dynamic challenges to help you grow and be the best version of yourself.

We also offer a compensation plan as follows:

Competitive hourly rate of $28/hr (undergrad) - $30.00/hr (graduate students)

Application close date: March 9, 2026

Calyxo is deeply committed to fostering an environment where diversity and inclusion are not only valued but also prioritized. We believe a diverse and inclusive community empowers us to act courageously, care deeply, and dream boldly to impact people in big ways. Diverse viewpoints bring diverse capabilities, which strengthen our focus and fuel our growth.

Calyxo is proud to be an equal opportunity employer, seeking to create a welcoming and diverse environment. All applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status or any other applicable legally protected characteristics

Legal authorization to work in the United States is required. In compliance with federal law, all persons hired will be required to verify their identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.

Disclaimer:

At Calyxo, we prioritize a transparent and structured interview process to ensure the best fit for both our candidates and our team. Please be aware of the following:

Structured Interview Process: Our hiring process includes multiple stages of interviews where you will have the opportunity to communicate directly with Calyxo employees. This ensures that you gain a comprehensive understanding of the role and our company culture.
Verification of Identity: We do not extend job offers without first meeting candidates, either virtually or in person. This step is crucial to maintain the integrity of our hiring process and to ensure mutual alignment.
Beware of Scams: Calyxo will never request sensitive personal information, such as your full name, address, phone number, or identification documents, via email or online forms before an official interview. Calyxo representatives will always contact you using an email format of [email protected]. If you receive a request for information from any other domain, please contact us directly at [email protected] to verify the legitimacy of the communication.

We appreciate your interest in joining Calyxo and look forward to getting to know you through our official channels.

Electrical Engineering/Vision Systems Intern - Pleasanton, CA

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