About us

Cassini Technologies is a MedTech company headquartered in The Hague, Netherlands, with more than a decade of experience advancing ophthalmic solutions. We design with connection and flexibility in mind — creating technologies that support surgical teams from preoperative diagnostics through intraoperative visualisation, in clinics and operating rooms worldwide. Our guiding principles: confidence in every step, simplicity that empowers, and value that endures.

About the role

We’re looking for a disciplined C++ Software Engineer to develop and maintain high-reliability software for our medical devices. We operate in a regulated market, so correctness, stability and thorough documentation matter as much as good code. You’ll own your work end-to-end, work closely with R&D, QA and RA colleagues, and help us deliver reliable releases as our product portfolio grows.

What you’ll do

Software development

• Design, implement and maintain C++ applications to high reliability standards
• Own changes end-to-end: design, implementation, peer review, testing, debugging and release
• Write and maintain unit and integration tests, and contribute to our CI/CD pipeline
• Investigate and resolve defects, including issues reported from the field

Documentation and compliance

• Create and maintain technical and architectural documentation to company standards
• Contribute software documentation to the technical file in coordination with QA and RA
• Support software verification activities, risk assessments and change control

Collaboration

• Work closely with the Product Owner, QA, RA and customer-facing teams to turn requirements into working, compliant software
• Give and receive constructive feedback through code reviews
• Flag risks, dependencies and delays early

What you bring

• A bachelor’s degree in Computer Science, Engineering or a related field
• At least 6 years of professional C++ experience (C++11/14/17)
• Proficiency in multi-threading and synchronisation
• A strong testing mindset and hands-on experience with GoogleTest
• Experience with Git, CI/CD, OOP, design patterns, UML and the full software development lifecycle
• The ability to write clear technical, architectural and regulatory documentation
• Responsible, security-conscious use of AI coding assistants (e.g. Copilot, LLMs)
• Excellent written and spoken English

Nice to have

• Experience with DICOM or HL7
• Understanding of digital security protocols
• Cross-platform development experience
• Python knowledge
• Experience in a regulated environment (e.g. IEC 62304, ISO 13485)
• Experience with medical or ophthalmic devices

How you work

• You take ownership and see things through
• You’re structured and precise, and you document as you go
• You’re collaborative, open-minded and open to feedback
• You raise issues early and communicate clearly
• You’re pragmatic and practical, with a positive outlook

What we offer

• A hands-on role with real responsibility and direct impact on products used in surgery
• A flat, no-nonsense organisation where your voice is heard
• A collaborative, international team in a growing company
• 25 days of annual leave
• NS travel card
• Pension contribution

Cassini Technologies is an equal opportunity employer. We welcome applications from candidates of all backgrounds.