IENAI SPACE is an early-stage startup located in Madrid, developing an end-to-end ecosystem of in-space mobility products, including propulsion systems and engineering SaaS. We are a highly innovative company in the “New Space” sector; the team is made up of a dynamic and multidisciplinary group of engineers, PhDs and developers, looking to revolutionize space mobility for the adoption of propulsion products in the smallest of satellites. We recently kickstarted our commercial phase with our first product: 360™, a Mission and Space Mobility analysis SaaS.

Our mission is to build tailored, end-to-end space mobility products and services for the next generation of small satellites empowering a sustainable new space economy. We believe this is possible because we rely on our values: Infinite Innovation, Extraterrestrial Excellence, Planetary Passion and Cosmic Collaboration.

How will you contribute to IENAI SPACE?

As a Firmware Main Developer, you will be the owner and main responsible for all firmware development related to our ATHENA Nano propulsion system. You will be in charge of the architecture design, implementation and continuous improvement of the firmware solutions, ensuring their functionality, reliability and safety.

This role requires a proactive engineer who can prioritize tasks effectively, work with agility, and take full ownership of firmware development. If you enjoy tackling open-ended technical challenges and working in an environment where your contributions have a direct impact, this role is for you!

Your key responsibilities will include:

• End-to-End Firmware ownership: lead the design, development, testing, and maintenance of firmware for our ATHENA Nano propulsion system.
• Technical feasibility assessment: evaluate design concepts and propose robust technical solutions.
• Architecture design: define and structure firmware components to create a modular, scalable, and maintainable system.
• Testing and verification: develop and execute both automated and manual tests to validate firmware performance and reliability.
• System integration: work closely with the hardware team to ensure seamless integration of firmware into our propulsion systems.
• Technical reviews and documentation: participate in design and milestone reviews, ensuring the highest quality and alignment with project goals.

What is your department like?

You will be part of our Electrical Engineering and Electronics team, which is part of our Electric Propulsion department. This team is in charge of designing, testing, manufacturing and has the mission of continuous improvement of the electronic devices that enable thruster operation.

What will make you succeed?

We are looking for (must have):

• At least 5 years of PROVEN experience in firmware development.
• Strong coding skills in C and C++, specifically for the Microchip ARM MCU family.
• Experience with FreeRTOS or SafeRTOS.
• Strong problem-solving skills with the ability to prioritize tasks and work autonomously.
• Fluent in spoken and written English.

We also value (nice to have):

• Experience in space applications or industries with strict safety/reliability requirements (medical, automotive, railway, avionics, etc.).
• Familiarity with MISRA C or other safety/reliability-oriented software guidelines.
• Experience with Python for testing and automation.
• Passion for space technology and a willingness to grow within a young, dynamic team.

What benefits do we offer at IENAI SPACE?

• 🚀 A key role in a pioneering space startup, where you will directly impact the development of cutting-edge propulsion technology.
• 💼 A full-time contract of 40h per week.
• ⏰ Flexible working hours, allowing you to manage your schedule for better work-life balance.
• 🏠 Hybrid work model – work remotely up to 9 days per month.
• 🎄 Extra holidays – in addition to 23 vacation days, enjoy 6 additional days off during the Christmas period (from 24 December to 2 January, both included).
• 🩺 Private health insurance, fully covered by the company.
• 🎓 Learning & Development – €1000 per year budget for training, courses, and professional growth.
• 💪 Autonomy and responsibility – your contributions will directly shape our technology and success.

What will your recruitment process be like?

Here is a quick overview of the recruitment process:

1. Application review: we carefully assess your CV and experience.
2. Culture and values interview: a chat with our People team to ensure we share the same mindset and values.
3. Technical interview: meet the engineering team and showcase your technical skills.
4. Sometimes the hiring process will require a technical exercise to assess how you could apply logic and structure to different scenarios.
5. Final interview with Founders: align expectations and discuss your potential impact at IENAI SPACE.

If everything you've read matches what you're looking for in your next adventure, don't hesitate to apply via LinkedIn.

We are looking forward to meeting you ✨