Senior Hardware Systems Engineer

Location: The Hague

Cassini Technologies is an ophthalmic technology company that has spent more than a decade advancing solutions for eye surgery, driven by curiosity, scientific rigor, and a focus on vision. The company designs flexible, connected technologies that adapt to the needs of surgical teams while maintaining interoperability and choice. Headquartered in The Hague, The Netherlands, Cassini collaborates with ophthalmic surgeons and clinics worldwide, supporting workflows from preoperative diagnostics through intraoperative visualization.

Guided by principles of confidence, simplicity, and enduring value, Cassini develops solutions that help surgical teams work efficiently, consistently, and with clarity.

The Role
You are our in-house engineer who understands our hardware designs and owns the technical relationship with hardware development partners including reviewing what they build, ensuring the subsystems integrate into one working system, and defining how it gets tested. You are also continuously analyzing for pragmatic improvements. You are personally accountable for the technical integrity of the medical device hardware in scope.

What matters most is that you have owned whole-system integration and verification and not a single subsystem. That experience can come from any complex integrated hardware domain: medical devices, robotics, automotive, instrumentation, or similar.

What You Will Do

Review and analyze partner hardware designs, and hold technical authority in design reviews

Propose improvements to existing hardware designs

Make mechanical, optical, electrical, and software subsystems integrate into one working system, and catch integration issues early

Define and run system- and component-level testing, and assess partner test results

Author the supporting documentation including test plans and reports, requirements, specifications, design review records

Break product requirements down into system and subsystem requirements partners can build against

Support design changes, improvements, and root-cause analysis

Travel to partner facilities for design reviews, integration, and testing when required

Required Experience

Formal degree in a hardware discipline: mechanical, electrical, optical, mechatronics, or systems engineering

Substantial experience (typically 10+ years) on integrated hardware systems, including ownership of whole-system integration and verification

Depth in one hardware discipline (mechanical, electrical, or optical) and working competence across the others, including how they interface physically

Experience reviewing and signing off external partner designs you did not create

Experience resolving cross-discipline integration issues

Hands-on system- and component-level testing

Strong technical writing, in a regulated or safety-critical environment

Willing to travel to partner facilities occassionally; strong English

Nice to Have Experience

Medical device hardware experience (ISO 13485, ISO 14971, IEC 60601-1, MDR/MDD)

Optical systems or optical imaging experience

Formal qualification in more than one hardware discipline

Working understanding of firmware and software interfaces to hardware

Experience managing technical deliverables from external partners

What We Offer

Salary in line with market rate for the role and experience level

Professional development supported through role-relevant training, courses, and conferences - employee-initiated

Office right next to The Hague central station

Standard office package: snacks, NS business card for work-related travel, pension contribution

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