RF/Microwave Engineer

The Role

As a RF / Microwave Engineer you will bring deep signal-integrity and high-frequency design expertise into our Product Development team. You will own the microwave performance of our products from concept through validation, combining simulation, measurement and product development.

You will work in a tight development loop where simulation, manufacturing and measurements continuously improve product performance. Experience in quantum computing is not required.

About Delft Circuits

Delft Circuits develops and manufactures advanced cryogenic I/O solutions that enable the next generation of quantum computing systems. Working at Delft Circuits means contributing to cutting-edge technology alongside leading quantum computing companies and research institutes worldwide.

Your key responsibilities will include:

RF Design & Simulation

• Perform 3D EM simulations of next-generation interconnects and transitions
• Design microwave filters and attenuators
• Perform microwave budget and cascade analysis
• Validate simulations against measurements
• Shape RF architecture of next-generation products

Technical Ownership & Collaboration

• Review third-party simulation models and measurement data
• Support customer projects with RF expertise
• Actively collect, analyze and translate feedback from customers, partners and suppliers, inside and outside of Europe
• Define product roadmaps and specifications
• Contribute to product documentation
• Cross-functional collaboration

What you bring

• 5-10 years of working experience of which at least 4+ years working as RF / microwave expert
• Knowledge of transmission lines, S-parameters, matching, filters and attenuators
• Experience with HFSS, CST or similar 3D EM tools
• Experience correlating simulations with RF measurements
• Collaborative mindset and good English

Bonus points for

• Cryogenic or low-temperature RF
• Quantum computing signal chains
• Flexible circuits or RF connectors

Personal Attributes

We are looking for someone who:

• Works analytically
• Shares knowledge
• Takes ownership
• Communicates effectively

Working Environment

You will work from Delft Circuits’ headquarters in Delft, collaborating with R&D, Product Management, Manufacturing and laboratory teams.

Why join Delft Circuits?

As part of our multidisciplinary environment you will find:

• A 1-year contract with intention to extend
• Fulltime position (36 hours per week)
• A competitive salary based on experience € 69.375 – € 82.231 per year, including 8% annual holiday allowance in May)
• CAO Metalektro
• Pension scheme (PME)
• Travel reimbursement (choose between €0.23/km or public transport subscription)
• 30 vacation days per year

You’ll be working from our headquarters at the Kabeldistrict in Delft, featuring a 200 m² lab, a workshop, dedicated assembly and testing areas, and a modern office space.

Ready to help build the future of cryogenic electronics and thrive where research meets production?

Apply now and tell us in a brief cover letter why you want to work at Delft Circuits and outline your relevant experience. Click on the Apply button or mail to work+rfengineer@delft-circuits.com. We will get back to you within two weeks.

Delft Circuits is an equal opportunity employer. We are committed to creating an inclusive environment for all employees.

Acquisition in response to this vacancy is not appreciated.