eleQtron develops and operates full-stack quantum computers based on trapped-ion technology. Quantum computing is a new computing paradigm rapidly approaching commercial viability. Our unique approach combines laser-cooled trapped ions with microwave control and tailored magnetic fields. Our next-generation computing machines under development will be able to find solutions to problems that are out of reach today, thus enabling new innovative products and services for a brighter future.

We are looking for an RF Application Engineer (m/f/d) to test, validate, and optimize RF subsystems at the core of our trapped-ion quantum computing platform in Siegen.

Responsibilities

As a RF application engineer in the Electronic Engineering Team, you will play a key role in testing, characterizing, validating, and integrating RF systems that support our next-generation quantum computing platforms. In this role, you will work closely with our international team of physicists and engineers to develop, characterize, debug, and optimize high-frequency electronic hardware systems in advanced laboratory environments.

Setting up, integrate, configure, and validate low-noise DC and RF electronic hardware components and subsystems within our quantum computing platforms.

Support system operation, bring-up, commissioning, and troubleshooting of electronic subassemblies, control systems, and laboratory equipment.

Collaborate closely with engineering and firmware teams to develop and integrate RF subsystems for next-generation quantum technologies.

Take ownership of developing new validation protocols and defining characterization standards.

Requirements

Required Skills

Bachelor’s or master's degree in Electrical Engineering, Electronics, RF/Microwave Engineering, Physics, or a related field

3–5 years of professional experience in electronics engineering, application engineering, hardware integration, or a comparable technical role.

Hands-on experience with high-speed digital and RF hardware systems.

Strong understanding of RF systems, including RF measurements, debugging, and hardware validation.

Experience in installing, integrating, and validating RF hardware subsystems in laboratory environments.

Experience with laboratory equipment such as VNAs, spectrum analysers, oscilloscopes, and signal generators.

Excellent organisational skills.

Structured, analytical working style with strong ownership and execution focus.

Fluent English.

We value

Experience with high-frequency system design.

Experience with Python or a similar scripting language for data analysis

What you can expect from eleQtron:

Competitive salary: We value our team members and therefore provide remunerations that reflect this, additionally rewarding achievements.

Flexible working hours: We offer personal freedom through a variety of flexible work schedules

Team spirit: In our international and diverse team, and with our regular team events, having fun at work is simply part of the culture

Further development: We want to grow together and so we offer our team members needs-based, individualized further training as well as plenty of room for personal development

Wellness Package: We offer health-promoting benefits such as fitness programs like UrbanSportsClub to support your well-being

Bike Leasing: Stay Mobile and Sustainable with Our Company Bike Leasing Program

Moving Benefits: A warm welcome! We are happy to support employees who move for us with a bonus

At the forefront: Work at the forefront of technology, where academic research meets commercial applications

Modern workplace: We have a high-quality infrastructure with laboratory space, offices and meeting rooms