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RF Engineer

On-site in Nigrán·Full-time·Added over a year ago

This job was published a year ago

Kreios Space

16 open roles

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Overview

Job details

Permanent contract
Full-time hours.

Requirements

Have the right to work in Spain
Kreios Space doesn't mention sponsorship in the ad.
Work in English
English is required, per the ad.
Work on-site in Nigrán
No relocation package mentioned.
University degree
“Degree in Electrical Engineering, Telecommunications, Physics or a related field” — per the ad.

The role

As an RF Engineer, you will contribute to the development of Kreios Space’s electric propulsion systems for Very Low Earth Orbit (VLEO).

Your mission will be to support the design, simulation, assembly and testing of RF and microwave antennas used in our air-breathing plasma thrusters, helping transform advanced research into robust, flight-ready hardware.

You will work closely with propulsion, plasma physics and systems teams in a hands-on environment, contributing to laboratory testing, data analysis and design iterations.

Your profile

Degree in Electrical Engineering, Telecommunications, Physics or a related field
Background in RF/microwave engineering or antennas, gained through professional experience, research or academic projects
Strong interest in space technologies, electric propulsion and experimental work
Comfortable working in a laboratory environment and interacting with hardware
Fluent in English

We are open to candidates at different levels of experience. The role and responsibilities can be adapted based on seniority.

Specific Knowledge

RF and microwave fundamentals (impedance matching, S-parameters, antennas)
Experience with electromagnetic simulation tools (HFSS, CST, COMSOL or similar)
Hands-on experience with RF measurement equipment (VNA, spectrum analyzer, signal generator, power meters)
Ability to support antenna tuning, RF testing and post-processing of measurement data
Basic programming or scripting skills (Python, MATLAB or similar)
Knowledge of plasma systems, EMC/EMI or space hardware is considered a plus

Interpersonal Skills

Curious and proactive, with a strong learning mindset
Methodical and detail-oriented, especially in experimental and test environments
Comfortable collaborating within multidisciplinary engineering teams
Clear communicator, able to document and explain technical work
Adaptable and resilient in a fast-moving startup context
Positive attitude, constructive sense of humor and ability to contribute to a healthy, enjoyable work environment

Why us?

Work on real space hardware that will fly in orbit, not just simulations or papers
Be part of a fast-growing European space startup shaping the future of sustainable space operations
Hands-on access to labs, test campaigns and cutting-edge technology from day one
Join a highly collaborative, respectful and supportive team where knowledge is shared openly
Enjoy a great work environment that values trust, autonomy, learning and good energy at work
Strong technical growth path in a scaling company, where your work has visible impact and you actively help shape both the technology and the way we work

About Kreios Space

Kreios Space is a space propulsion company based in Vigo, Spain, specializing in air-breathing electric propulsion systems for Very Low Earth Orbit (VLEO) satellites. The company develops innovative thruster technology that enables satellites to operate at lower altitudes, reducing launch costs and improving Earth observation capabilities. As a growing player in the European space sector, Kreios Space focuses on engineering and R&D, with a team of specialists in propulsion, RF systems, and satellite platform engineering.

Kreios Space operates from its headquarters in Vigo, Galicia, and is expanding its team with a range of technical and support roles. The company offers an opportunity to work in a niche but rapidly advancing field of space technology, with a strong emphasis on hardware, systems engineering, and satellite operations. For international professionals, Kreios provides a chance to contribute to cutting-edge space innovation in a smaller, agile company environment, with roles that may require relocation to Vigo or other Spanish locations.

Industry: Space Propulsion
Founded: 2018
Employees: 11–50
Headquarters: Vigo, Spain
In Spain: Vigo
Website: kreiosspace.com

Good to know if you are moving

Kreios Space is headquartered in Vigo, a coastal city in Galicia, Spain, offering a lower cost of living compared to Madrid or Barcelona.
The company works on innovative air-breathing propulsion technology, a niche and growing field in the space industry, providing unique technical challenges.
As a small company, employees may have broader responsibilities and more direct impact on projects compared to larger aerospace firms.
The company is involved in European Space Agency (ESA) projects, offering exposure to international space programs.
Vigo is well-connected to other Spanish cities and Portugal, with a growing tech and engineering ecosystem.

All open roles at Kreios Space