At Indra Group, we develop space technology for the missions of the future.

We drive satellite, Earth observation, communications, and space defense programs, participating in projects that push the boundaries of technological innovation and knowledge.

Join our team working on national and international projects!

We are looking for a RTOS Software Engineer with experience in embedded software development for microprocessor-based systems, RTOS environments, and space-related projects to join projects focused on the design, implementation, validation, and optimization of reliable software for GNSS and space systems.

What will you do?

Design, implement, and optimize embedded software for RTOS-based platforms, ensuring high performance and reliability.
Contribute to system conception, specification, and design activities following systems engineering best practices.
Develop software in C and Python for ARM-based and other embedded platforms.
Support software development activities in compliance with Design Assurance Levels (DAL) and DO-178C requirements.
Participate in software verification, validation, quality assurance, and configuration management processes.
Produce technical documentation and contribute to the analysis of GNSS systems, signals, performances, and RF interference-related topics.

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.

Bachelor's degree in Computer Engineering, Telecommunications Engineering, Aerospace Engineering, or a related field.
More than 3 years of experience in software development, preferably in the space sector.
Strong experience in C programming, ARM-based embedded systems, and RTOS environments such as VxWorks, PikeOS, or similar.
Experience in software development according to Design Assurance Levels (DAL) and knowledge of DO-178C.
Experience with Python programming, software version control tools, and software quality validation processes.
Familiarity with ESA ECSS standards and good understanding of GNSS concepts, signals, performances, and RF interference detection.

What do we offer?

Innovative, high-impact projects: Work with cutting-edge technologies on projects with both national and international impact.
A career plan tailored to you: 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.
Open and transparent work environment: Enjoy direct communication with managers and colleagues in a collaborative setting.
Continuous learning: Access training through Open University and Udemy for Business (more than 6,000 courses available).
Employee discounts and benefits: Enjoy special offers on gyms, restaurants, retail stores, leisure activities, and much more.
Corporate shuttle service with different routes connecting work centers located outside Madrid city (only applicable where relevant).

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.

RTOS Software Engineer. Hybrid

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