At Keystone, we are shaping the future of photonics wafer-level testing. As a pioneer in optical probes for wafer-level testing, we have a strong customer base and deliver innovative solutions to leading players in the photonics market. Our products are a key enabling technology for optical links in AI factories and thus experience a strong demand.

We are looking for an Application Engineer to join our customer solutions team in Karlsruhe. In this role, you will focus on understanding customer requirements and translating them into a final product. Your responsibilities will include optical design, handling RMAs, and developing customized quality control capabilities in response to specific customer requests.

You will act as the interface between the customer and the production team to ensure a smooth transition of application engineering projects into volumetric production, which directly influences the success of the company. You will have access to a cleanroom environment equipped with optical setups and 3D laser printing systems, and you will work closely with the R&D and production teams.

Tasks

Implement application engineering projects
Serve as the technical point of contact for customer inquiries, helping to provide the best solutions for our customers
Work closely with the R&D team to develop and validate new product functionalities
Build and develop novel optical setups based on the customer's request
Handle RMAs

Requirements

Master’s degree in Physics or Engineering
At least 2 years of industrial hands-on experience in silicon photonics, preferably in the testing industry
Knowledge of CAD design (Autodesk Fusion, Inventor, or similar)
Knowledge of ZEMAX
Understanding of wave optics, optical fibers, optical setups, and light propagation
Very good English comprehension

Benefits

The opportunity to collaborate with leading companies in the photonics industry
Flat hierarchies and a dynamic, fast-growing startup environment with excellent career development prospects
A supportive and diverse team culture in a pleasant working environment in Karlsruhe
Hands-on experience with cutting-edge photonic technology
Competitive salary and bonus structure
Opportunities to participate in professional events and conferences

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