Role Summary

At Keystone, we are shaping the future of photonics wafer -level testing. As a pioneer in optical probes , we serve a strong customer base and deliver innovative solutions to leading companies in the photonics market. Our products are key enablers for optical links in AI and high -performance computing and are experiencing strong demand. In December 2025, Keystone became part of the FormFactor portfolio, strengthening its silicon photonics testing capabilities, with a particular focus on wafer -level testing for co -packaged optics (CPO).

We are looking for a Sales Engineer to join our Customer Solutions team in Karlsruhe. In this role, you will work directly with customers to understand their technical requirements and translate them into suitable solutions and final products.

You will manage customer opportunities throughout the sales process, prepare technical quotations, and act as a consistent point of contact for our customers. You will work closely with Application Engineering and other internal teams, directly contributin g to customer success and company growth.

Your Key Responsibilities

Understand customer requirements and translate them into product configurations
Contribute to product roadmap development
Manage customer opportunities and leads in the CRM system
Prepare technical quotations and coordinate commercial and technical input with all stakeholders
Support customers throughout the entire sales cycle, from pre-sales to order processing and invoicing
Communicate customer feedback and requirements to relevant internal teams, including RnD, Application Engineering, and Operations

What We Offer

The opportunity to collaborate with leading companies in the semiconductor and photonics industries
Flat hierarchies and a dynamic, fast-growing 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 photonics technologies
Flexible working arrangements with partial remote work
Competitive salary and bonus structure

Minimum Qualifications

Bachelor’s degree in a technical field
At least 2 years of Sales or Application Engineering experience in optical, photonics or similar fields
Solid knowledge of optics and photonics, with the ability to understand and interpret technical specifications
Experience with CRM systems, preferably Salesforce
Strong communication and organizational skills
Very good written and spoken English