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RF Analyst

Vigo, Spain
Full-time
Permanent employee

Your mission

Kreios Space is seeking an RF Analyst responsible for analyzing space communications in Earth‑space and space‑space links within the telecommunications domain. You will be part of an engineering team dedicated to the analysis and modeling of communication systems, including the design and evaluation of antenna parameters, the study of signal transmission and reception processes, and the analysis of communication techniques and architectures, always considering technical aspects with a clear orientation toward business needs and opportunities in the telecom sector.

Responsibilities

Under the direction of the Mission Manager, and in close interaction with the different work teams, you will be responsible for the following tasks:
  • Perform communication link analysis for Earth‑space and space‑space scenarios within the telecommunications domain.
  • Participate in the analysis and modeling of communication systems in space environments.
  • Design, evaluate, and optimize antenna parameters according to system requirements.
  • Develop studies on signal transmission and reception considering technical and operational constraints.
  • Analyze and select communication techniques and architectures suitable for each mission or application.
  • Prepare technical documentation and support decision‑making with arguments based on performance, feasibility, and business requirements in the telecom sector.
  • Collaborate with other engineering teams to ensure coherence between design, modeling, and commercial needs.
  • Identify improvement opportunities in current systems and contribute to defining business‑oriented solutions.

Your profile

Education

Degree in Telecommunications Engineering, Electronics, or equivalent. Master’s degree desirable.

Minimum Knowledge
  • Solid foundations in electronic communications and RF systems.
  • Knowledge of space communication links (Earth‑space and space‑space).
  • Basic handling of simulation and communication system modeling tools.
  • Understanding of antenna parameters and operation.
  • Understanding of modulation, demodulation, signal transmission, and signal reception processes.
  • Familiarity with link budgets and performance calculations.
  • General knowledge of the telecommunications sector and its technical requirements.
  • Ability to interpret technical documentation and produce clear reports.
Desired Knowledge
  • Previous experience in space communications analysis or satellite projects.
  • Advanced use of simulation tools (HFSS, CST, STK, GNURadio, etc.).
  • Familiarity with advanced communication architectures (MIMO, beamforming, SDR, error‑correction techniques, etc.).
  • Experience in interference analysis, spectral coexistence, and spectrum planning.
  • Proficiency with RF simulation tools.
  • Knowledge of Matlab, Python, C+.
Experience

At least 2 years working with advanced RF systems.

Interpersonal Skills
  • Technical precision.
  • Ability to analyze and solve complex problems.
  • Organized and methodical, capable of meeting project milestones.
  • Collaborative mindset; comfortable working with cross‑functional teams.
  • Good communication skills and clear documentation.
  • Proactive attitude.
  • Ability to work in multidisciplinary teams and complex engineering environments.

Why us?

Real impact : At Kreios Space, you will be an active part of the entire process, from the initial ideas to the final result. It's part of how we work: autonomy, trust and real responsibility from day one. We want you to see the direct impact of your work and have the freedom to propose, decide and build.

Innovation: We work at the frontier of the space industry. Our air-breathing propulsion system, fuel-free and truly disruptive, is designed to unlock very low Earth orbits, opening entirely new opportunities for satellites and the services they enable.

Conditions that boost your talent: We create an environment where your talent can thrive: flexible working hours, a compensation package tailored to you, continuous training, and access to cutting-edge technical infrastructure to help you achieve your best work.

Equity: We believe in rewarding the people who make our mission possible. Alongside a competitive salary, you’ll have access to our company share plan, because at Kreios Space, success is something we build together.

At Kreios, we value and celebrate diversity, striving to create an inclusive environment where everyone is treated with fairness, respect, and dignity.
 We are committed to providing equal employment opportunities and do not discriminate against any employee or applicant on the basis of race, color, religion, sex, gender identity or expression, nationality origin, age, or disability.

About us

We are leading the development of the first air-breathing electric propulsion (ABEP) system designed specifically for Very Low Earth Orbit (VLEO). This revolutionary engine enables satellites to orbit between 150 and 300 km by capturing and using atmospheric particles as propellant.
By eliminating the need to carry fuel onboard, we drastically increase efficiency and overcome the main challenge of atmospheric drag in VLEO. This disruptive technology opens the door to an entirely new generation of space services, from high-resolution Earth observation to near real-time communications.
To achieve it, we rely on a team of professionals who are passionate, visionary, and committed to pushing the boundaries of what is possible. If you share this passion and want to leave your mark on the future of the space industry, we want to meet you.