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Electro-Optical Test Engineer

Thorlabs, Inc., Jessup, MD, United States
Employer Description

Founded in 1989, Thorlabs seeks to accelerate the forward movement of scientific discovery and advancement! As a vertically integrated manufacturer of photonics components, instruments, and systems, our vast product portfolio includes over 20,000 items, ranging from optics and optomechanical positioning components to imaging systems, many of which are customer inspired.

Photonics is the foremost technology driving innovation in science and engineering. As the number of technological innovations has grown, Thorlabs has extended its core competencies in an effort to play an ever increasing role serving the Photonics Industry at the research end, as well as the industrial, life science, medical, and defense segments.

Headquartered in Newton, NJ, Thorlabs has grown to over Approximately 2,300 employees with manufacturing and sales offices in the United States, United Kingdom, Germany, France, Sweden, Japan, China, and Brazil. As light-based technologies push into new markets, Thorlabs plans to enter early with the products and services required to ensure the ultimate success of our customers.

Job Description

Thorlabs is seeking an experienced electro-optic Test Engineer to participate in the development and manufacturing of next generation semiconductor lasers, in particular MEMS-tunable Vertical Cavity Semiconductor Lasers (MEMS-VCSELs) for use primarily in Optical Coherence Tomography (OCT) applications. You will be responsible for developing test systems and releasing them to production. This position will require design, assembly, and troubleshooting of both hardware and software in support of manufacturing systems development. Test Engineers work directly with electrical engineers, mechanical engineers, assembly personnel, and other electro-optic engineers to ensure that designs and manufacturing techniques will yield products which meet the customer's specifications.


Essential Job Functions include the following, but are not limited to:

  • Design and implement automated electro-optic test systems
  • Prototype, develop, test & qualify new test systems for use in manufacturing
  • Implement software for data acquisition; interface with SQL databases and MES systems.
  • Create budgets and schedules for these new developments
  • Maintain documentation for the system development process
  • Create assembly and test work instructions; train personnel
  • Specify & purchase all parts and equipment required; interact with vendors


Thorlabs values its diverse environment and is proud to be an Equal Employment Opportunity/Affirmative Action employer. All qualified individuals will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age or veteran status. Job descriptions are not intended as and do not create employment contracts. The organization maintains its status as an at-will employer. Employees can be terminated for any reason not prohibited by law.


Job Requirements



  • Minimum 3 years of experience in similar position
  • Experience using .Net, Labview or similar software to automate testing and data acquisition using various pieces of test equipment and/or motion control.
  • Experience with optoelectronic devices and optical test equipment
  • Hands-on experience in the photonics industry, laser or physics lab is a plus.



  • Bachelor or Master's Degree (or higher) in Physics, Electrical/Mechanical/Optical Engineering or related field(s) is required.


Specialized Knowledge and Skills:

  • Thorough understanding of .Net and related SW development environments
  • Experience with modern software development best practices
  • Experience interfacing with SQL databases
  • Problem resolution skills for debugging new designs and assemblies
  • Manual dexterity to assemble and align precision opto-mechanical systems
  • Tool and fixture making experience is a plus.
  • Soldering /circuit design experience is a plus.
  • Experience with OCT imaging or similar optical imaging modality is a plus
  • High attention to details
  • Flexibility/adaptability in a fast-paced & dynamic environment
  • Ability to function autonomously with little direction/works well independently of others
  • Demonstrated ability to work in a team environment
20 July 2022
19 August 2022
Bachelor's Degree
Optical Components, Lasers, Sensors