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Intern, Software Engineering

Coherent Corp. US
Fremont, CA Intern
POSTED ON 5/3/2026
AVAILABLE BEFORE 6/3/2026

Job Summary

We are seeking a highly motivated Software Engineering Intern to assist in the enhancement and optimization of our Firmware Regression Testing (FRT) framework. The intern will work closely with our software engineering team to perform code upgrades, refactoring, and modifications to improve test execution efficiency and maintainability. This role provides hands-on experience in software development, test automation, and regression testing for optical transceiver technologies.

Primary Duties & Responsibilities

  • Understand test flow and assist in implementing upgrades to test case modifications.
  • Update and standardize register naming conventions across all CMIS versions (4.0 to 5.3) to ensure consistency and maintainability.
  • Modify FRT-specific functions for improved data interpretation and reporting.
  • Conduct code refactoring and cleanup to enhance the structure, readability, and maintainability of the FRT codebase.
  • Collaborate with the software engineering team to analyze and implement best practices for automation and test framework improvements.
  • Create Python-based automated test scripts to validate the firmware features.
  • Document the development process, findings, and final implementation for future reference.

Education & Experience

 

  • Currently pursuing a Bachelor's or master’s degree in Computer Science, electrical engineering, Computer Engineering, Embedded Systems, or a related field.

 

Skills & Other Requirements

  • Proficiency in Python for test automation and instrument control.
  • Familiarity with instrument and hardware control such as digital I/O, timers, I2C, ADCs, UARTs  etc.
  • Prior coursework or experience with Software & hardware interfacing is a plus.
  • Git version Control and Familiarity with C, C , and C# programming languages is a plus.
  • Ability to analyze, troubleshoot, and improve existing software functionalities.
  • Good documentation and communication skills for technical reporting.

Working Conditions

  • This position is on-site
  • Regular use of a computer and other office equipment is necessary
  • Interaction with team members and external contacts is a regular part of the job
  • May require occasional overtime and flexibility in work hours to accommodate the executive’s needs

Physical Requirements

  • Sitting for extended periods while working on a computer or conducting meetings.
  • Use of hands and fingers for typing, writing, and handling documents.
  • Occasional lifting of objects or materials up to 20 pounds for administrative tasks.
  • Ability to communicate verbally and in writing.
  • Mobility within the office environment to attend meetings or interact with colleagues.

Safety Requirements

All employees are required to follow the site EHS procedures and Coherent Corp. EHS standards.

Quality & Environmental Responsibilities

Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

Culture Commitment

Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.:

Integrity – Create an Environment of Trust

Collaboration – Innovate Through the Sharing of Ideas

Accountability – Own the Process and the Outcome 

Respect – Recognize the Value in Everyone

Enthusiasm – Find a Sense of Purpose in Work

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

If you need assistance or an accommodation due to a disability, you may contact us at talentacquisition@coherent.com.

ABOUT US

Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!

Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.

 

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