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?

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.

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