> Markdown version of [/jobs/ext/3845609-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/3845609-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** The Klamath-Lake Employment Training Institute Incorporated - **Location:** Santa Clara, CA, United States - **Contract:** Permanent contract - **Skills:** Computer Vision, C Sharp (Programming Language), Computer Engineering, Data Transmissions, Software Architecture, Systems Development Life Cycle, Software Engineering, Deep Learning, Software Coding - **Published:** October 20, 2026 - **Apply:** https://www.juju.com/job/23_C82722FECB186103D54074C6738BE777 ## About the Role Software EngineerPrimary Duties & ResponsibilitiesWork with internal customers to define the automated process and system specifications.Understand and document customers' requirements and reach agreements with customers.Work with hardware engineering colleagues to design/select suitable key parts as part of system conception design.Create software architecture as part of system conception design.Assess software-related risks with necessary mitigations.Develop software and coding based on software architecture.Test new developed modules if feasible.Simulate environment to verify key algorithms.Finish the whole software coding within the pre-defined schedule.Set up PC and install necessary software and hardware drivers.Make each control module functional individually.Debug software to make each functional unit work properly.Integrate system to make the whole auto sequence as defined.Work with hardware engineering colleagues to continuously trial run the system and improve and verify the system reliability.Install the system on the production floor and work with the customer to qualify the system.Support the production and trouble-shooting system issues if needed.Education & Experience15+ yrs. of software engineering experience in automated process and test systems development is must.Skilled in the use of software development language such as C#, C, C++.Knowledge of optical communication technology is preferred.Skills & Other RequirementsExpert in the design and developing software for automated assembly and test systems for optical data communication related product manufacturing, such as transceivers, OCS, and CPO.Proficient in motion control and machine vision technology applications.Familiar with deep learning technology application is a plus.Ability to develop regular automation projects independently.Ability to work closely with colleagues from various fields.Excels in a high teamwork spirit across teams, departments, and sites.Able to support a flexible work schedule due to the needs of collaboration with multiple facility's customers and colleagues.Working Conditions8-hour shift: 8 AM to 5 PM. May need to work on some irregular hours, such as earnings and weekends, for urgent production support.Must be able to function in a fast-paced environment, carrying out multiple projects at a time.Candidate may need to occasionally travel overseas to customer site for system transfer or support.Physical RequirementsAble to work in a clean room environment when needed.Safety RequirementsAll employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.Quality and Environmental ResponsibilitiesDepending 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 CommitmentEnsure adherence to company's values (ICARE) in all aspects of your position at Coherent Corp.:Integrity - Create an Environment of TrustCollaboration - Innovate Through the Sharing of IdeasAccountability - Own the Process and the OutcomeRespect - Recognize the Value in EveryoneEnthusiasm - Find a Sense of Purpose in WorkCoherent Corp. is an equal opportunity/affirmative action employer.