WSA 2026

Communications Engineer

Barcelona / Madrid

Indra Space combines innovation, technology and expertise across the entire space value chain to deliver solutions that power critical missions and help shape a more sovereign and competitive space industry.

💻 Join our team working on national and international projects!

We are looking for an RF & Antenna Engineer to join our teams in Barcelona or Madrid, contributing to the design, development and validation of advanced active antenna and datalink communication solutions.

💡 What could you do?

- Design, develop and validate active antennas for datalink applications.

- Apply beamforming techniques and support the definition of next-generation antenna architectures, including tapering and nulling.

- Design and implement Physical Layer for custom waveforms.

- Design and protocols for layer 2 and layer 3 of custom waveforms as well.

- Calculate and simulate antenna radiation patterns using specialist RF tools.

- Plan and execute laboratory activities using dedicated test equipment and instrumentation.

- Contribute to the development of ad hoc communication products tailored to different customer requirements.

🎯 What are we looking for?

Don't worry if you don't meet 100% of the requirements. We encourage you to apply, learn more about our opportunity, and show us what you can bring to the team.

- If you are an RF & Antenna EngineerExperience in RF and antenna engineering, including link budget calculations, active antenna development and RF laboratory work.

- Strong knowledge of beamforming techniques and advanced antenna architectures such as tapering and nulling.

- Experience calculating and simulating antenna radiation patterns.

- Proficiency with RF simulation tools such as CST Studio Suite and Ansys HFSS.

- Experience with communication buses and interfaces such as SPI, MIL-STD-1553, I2C and UART.

- Experience developing ad hoc communication products for different customer needs.

If you are a Physical Layer Design Engineer

- Software-Defined Radio (SDR) communication systems, including waveform and data-link design and implementation.

- Digital Signal Processing (DSP), including modulation techniques, channel coding, synchronization, equalization, etc.

- VHDL development for digital communication systems.

- Advanced proficiency in MATLAB/Simulink.

- Experience in digital hardware design and implementation using FPGAs and DSPs.

- Experience with MPSoC and RFSoC devices, RF transceivers, and related technologies.

- Radio communication and SATCOM terminal architectures.

If you are a Protocol Engineer

- Layer 2 and Layer 3 routing protocols.

- Knowledge of TCP/IP networks.

- Medium Access Control (MAC) techniques for wireless networks.

- Knowledge of radio communication and SATCOM systems.

- Mobile Ad Hoc Networks (MANETs).

- Knowledge of network validation and simulation tools such as Wireshark, GNS3, OMNeT++, NS-2, Mininet, etc.

- Programming languages: C/C++, MATLAB, Python.

- Linux knowledge and experience.

- Dynamic routing protocols (OSPF, OLSR, MPLS, BGP, RIP, etc.).

- Medium Access Control (MAC) protocols and techniques (TDMA, CSMA, etc.).

- Technical knowledge of communication protocols and technologies such as GSM, TETRA, 3G, 4G and 5G.

- Experience in software development for Real-Time Operating Systems (RTOS).

- Experience in software development on Linux platforms.

⭐ Nice to have

- Knowledge of DO-160, DO-178 and DO-254 standards.

- Experience with engineering tools such as IBM Engineering DOORS and Enterprise Architect.

- Experience working in Scrum or Agile environments.

🚀 What do we offer?

- Innovative, high-impact projects: Work with cutting-edge technologies on projects with both national and international impact.

- A tailored career plan: Designed to support your professional growth and development.

- Autonomy and flexibility: Freedom to organize your work, with a healthy work-life balance adapted to your needs.

- Stability and long-term opportunities: Join a leading company with more than 60,000 professionals and strong financial stability.

- 32 days off per year (vacation days + personal leave days).

- Open and transparent work environment: Enjoy direct communication with managers and colleagues in a collaborative setting.

- Continuous learning: Access training and certificates through Open University and Udemy for Business, with more than 6,000 courses available.

- Employee discounts and benefits: Enjoy special offers on gyms, restaurants, retail stores, leisure activities, financial services and much more.

🕓 What does our recruitment process look like?

- Profile review: We assess your experience and skills to determine your fit for the role.

- Initial phone conversation (5-10 minutes): If you receive a call from an unknown number, it may be us! A brief conversation to get to know you and answer any questions.

- Talent acquisition interview: An opportunity for you to get to know us better - our values, career model, skills framework, and culture - while we explore whether there's a mutual fit.

- Technical interview: Meet the team, learn more about the project and day-to-day responsibilities, and discuss your technical expertise. Short assessments in English and competencies may also be conducted if required.

- Offer and onboarding: If everything goes well, you'll join our team and begin this exciting new chapter with us!

Estimated hiring process duration: 2-3 weeks.

As a company, we view equality as a cross-cutting principle and a driver of social change. We are committed to equal treatment and opportunities for all, non-discrimination, pay equity, and work-life balance.

This commitment is reflected in fostering respectful and inclusive workplaces where everyone is treated with dignity, can grow professionally, and has equal opportunities in recruitment, training, and career progression, free from discrimination based on gender, age, disability, sexual orientation, gender identity or expression, religion, ethnicity, marital status, or any other personal or social circumstance.

INDRA is a Top Employer 2026!

Join one of Spain's best employers, recognized for the outstanding conditions offered to its professionals and its comprehensive people management practices.