Temporary Software Engineer Jobs in California (NOW HIRING)

Primary Duties & Responsibilities

• Develop and enhance automated test execution frameworks for firmware and system-level validation.

• Support automation for customer issue replication, debug workflows, and release qualification.

• Document FIRE, SRT and EUI5 architecture, frameworks, APIs workflows, troubleshooting procedures and design decisions clearly for long-term maintainability. 

• Create software solutions that reduce manual effort, improve repeatability, and increase automation coverage.

• Assist with root-cause analysis of firmware or system-level issues by improving observability and debug tooling.

• Translate validation and customer issue requirements into software infrastructure and tooling solutions

• Participate in design reviews, code reviews, architecture discussions, and technical planning.

• Support migration from manual or script-based workflows toward robust, platform-based automation.

Education & Experience

• Bachelor's degree in computer engineering, Electrical Engineering, Computer Science or a related field. 

• Strong interest in embedded systems, firmware verification, automation infrastructure, and optical transceiver technologies.

• Experience developing software in one or more languages such as Python, C/C++, C# or similar.
• Experience working with automation frameworks, test infrastructure, hardware/software integration, or embedded system validation.
• Strong understanding of software development practices, including version control, debugging, code reviews, and documentation

Skills

• Strong Python programming language skills, Git version Control and Familiarity with C, C++, C# programming languages is a plus. 
• Experience with optics and signal processing is a plus. 
• Knowledge of common buses and communication protocols (e.g. UART, I2C, SPI, interfaces, etc.) 
• Familiarity with instrument and hardware control such as digital I/O, timers, ADCs, UARTs, low power modes, etc. 
• Experience working at the hardware/software interface: reading and writing registers, comfortable with hardware specs. 
• Comfortable using oscilloscopes, multimeters, power supplies, etc. 
• Hands-on (practical) or lab experience with hardware. 
• Strong interpersonal and problem-solving skills. 
• Work effectively with other members of core team for module development. 

Working Conditions

• Part Time role- approximately 5 hours per week, capped at 10 hours a week hours worked, for 4-5 months
• This position is remote
• 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

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. Corporate EHS standards.

Quality and 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.

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.