Mercury Mission Systems Spain is specialized in the design, manufacturing and maintenance of complex high-performance safety and mission critical avionics and defense computers. We are part of Mercury Systems Inc., a US based company.
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We are looking for a new talent to join our Software team in Getafe (Madrid), Spain:
Principal Software Engineer
Are you an experienced embedded software engineer looking to lead complex software activities within the avionics sector?
Mercury is looking for a Principal Software Engineer to combine hands‑on software development with technical leadership across avionics projects. You will help shape software plans, coordinate activities across internal teams and subcontractors, and ensure software delivery aligns with project and certification requirements.
What you'll be doing
Leading software activities across avionics projects
Specifying, designing, coding and testing embedded avionics software
Developing and integrating software modules in C/C++
Working with Linux kernel drivers, VxWorks 653, RTOS BSPs and application software
Establishing software plans and tracking project delivery against them
Supporting software verification and developing verification scripts in Python
Coordinating internal teams and subcontractors responsible for verification activities
Providing technical software support to customers and supporting DO-178C audits
Preparing basis-of-estimate inputs for software activities
What we're looking for
A Master's degree in Information Technology, Electrical Engineering or a related discipline




Proven industrial experience as an embedded software engineer
Strong knowledge of DO-178C and DO-330
Experience with avionics RTOS BSPs and software lifecycles
Linux kernel driver development experience
Software project management skills, including task definition, planning and progress tracking
Fluent English
If you are ready to combine technical depth, hands‑on development and software leadership within a highly specialised avionics environment, we would love to hear from you.
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Why Join Us?
Be part of a team developing advanced electronic systems
Collaborate with cross‑functional and international teams
Grow your career in a high‑impact engineering role
Contribute to products that must meet strict regulatory and quality standards
If you're ready to take your software engineering career to the next level, we'd love to hear from you.
We are offering:
Flexibility to work from home.
Social benefits as tickets restaurant, health insurance.
Versátil working hours.
Parking at the office.
Free coffee and fruit.
Projects with high level of complexity.
Continuous learning and development opportunities.
Well‑being platform.




Inclusive culture.
Mentorship program.
High responsibility and autonomy to make an impact.
Why should you join Mercury Systems?
Mercury Systems is leading Commercial Provider of secure sensor and mission processing subsystems. We are pioneering a next generation defense electronics business model specifically designed to meet the current industry's current and emerging technology needs. The size and makeup of our organization enable forward thinking, entrepreneurial professionals thrive and prosper.
Mercury Mission Systems International SA (MMSI), based in Geneva and Getafe is part of Mercury Systems (USA), and is specialised in the design, manufacturing and maintenance of complex high-performance safety and mission critical avionics and defense computers.
Our Culture
We are committed to making Mercury a great place to work, no matter where our employees are located. We offer a casual and enjoyable atmosphere that allows employees to learn and grow. We help and care for one another and work as one to achieve results for us and for our customers. We value communication, transparency, and strive to foster two‑way dialogue at all levels of the organization. We are committed to lifelong learning, offering comprehensive skills training and tuition reimbursement. xhfqzwm Whether you're just starting out on your career journey or you are an experienced professional, it's important to us that you feel recognized and rewarded for your contributions.
DETAILS OF THE MISSION
Occupancy: 100%
Beginning of the activity : As soon as possible
Location: Getafe (Madrid), Spain
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📌 Principal Software Engineer (Madrid)
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📍 Madrid