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91,000+ live jobsSenior Mechanical Design Engineer in Madrid
On-site in Madrid·Added today (last checked 26 Oct)
100 open roles
Our summary
- Work mode
- On-site, Madrid
- English
- Required
- Experience
- 5+ years
- Education
- University degree




Visa options
The ad doesn’t mention sponsorship
Not a refusal, but not a yes. Worth asking in your first message.
Skills
Grupo Oesia is hiring for this role in several places. This vacancy is in Madrid.
Requirements
What we're looking for
- University degree at Bachelor's or Master's level in Mechanical Engineering, Aerospace Engineering or a related field.
- +5 years of experience in mechanical design of electronic equipment, avionics or high-reliability systems.
- Proficiency in SolidWorks for 3D modelling, assembly design and generation of manufacturing drawings.
- Experience in preparing technical documentation and manufacturing drawings.
- Knowledge of Ansys, FloTHERM or similar tools.
- Knowledge of materials, machining processes, surface treatments and manufacturing processes.
- Experience in the definition, monitoring and validation of environmental and mechanical tests.
- Strong analytical and problem-solving skills.
- Technical English proficiency.
Nice to have
Highly valued:
Knowledge of CATIA.
Experience in the design of avionics and embedded electronic equipment.
Knowledge of aeronautical and military standards such as DO-160 and MIL-STD-810.
Experience with ARINC 600, VPX equipment or similar architectures.
Specific knowledge of thermal design and thermal management of electronic equipment.
Pay & benefits
What you'll get
- Projects with real technological impact.
- Teams where sharing knowledge is part of everyday work.
- Continuous professional development tailored to each profile and individual.
- An environment where engineering and people grow together.
The role
[Senior Mechanical Design Engineer - Global opportunity] - Grupo Oesía
Our projects become technology that protects, connects and drives strategic sectors: our own. At Grupo Oesía, we work to ensure innovation delivers real impact, and we are looking for people who want to be part of that challenge.
You will be part of a multidisciplinary team where you will design, develop and integrate technological solutions that become an essential part of high-value projects for our customers.
What you'll do
- Mechanical design of electronic equipment using SolidWorks, including 3D modelling, assembly design and manufacturing drawings.
- Development and preparation of technical documentation associated with the design.
- Performing and monitoring structural analyses using Ansys or equivalent tools.
- Participation in studies and thermal simulations using FloTHERM or similar tools.
- Selection of materials, machining processes, surface treatments and manufacturing processes suitable for each design.
- Definition and monitoring of mechanical and thermal requirements.
- Definition, monitoring and validation of environmental and mechanical tests.
- Support during the manufacturing, integration and validation phases of the equipment.
- Collaboration with electronics, systems and production teams, as well as other engineering disciplines.
WHAT ARE WE LOOKING FOR?
If you are motivated by tackling new technological challenges and being part of projects that leave a lasting impact, we would be delighted to meet you.
About Grupo Oesia
Grupo Oesía is a Spanish multinational technology company dedicated to dual-use engineering, developing products and solutions for sectors such as aerospace, defense, cybersecurity, and digital transformation. Founded nearly 50 years ago, it operates in 42 countries across four continents and works through five brands: Oesía Networks, Tecnobit, Cipherbit, UAV Navigation, and Inster. Their core engineering focus spans optronics, tactical and secure communications, satellite communications, simulation, avionics, and space systems.
The company's activities in Spain include a significant engineering and technology presence, with roles spanning AI software, hardware and RF engineering, cybersecurity, project management, and consulting. Their roles highlight a strong focus on defense, space, and critical systems, with explicit opportunities for international professionals, including relocation to Spain. While Spain is a key operational hub, the company's global footprint across 42 countries underscores its international scope. Culture is rooted in innovation and contributing to Spain's technological sovereignty, often making roles attractive to engineering and tech professionals looking for impact in defense and space sectors.
- Industry
- Defence Electronics
- Employees
- Unknown
- Headquarters
- Madrid, Spain
- In Spain
- Madrid
Good to know if you are moving
- Roles with 'Relocation to Spain' in the title suggest the company actively recruits international hires.
- The group is a multinational tech company with projects in 42 countries, providing exposure to international environments.
- Spain is a central hub with roles across Madrid and possibly other locations, offering a gateway to working in Spain.
- Work focuses on defense, space, aerospace, cyber, and satellite communications sectors—high-specialization areas.
- As a 100% privately held Spanish company, it emphasizes sovereignty and national technology development for Spain.
In their own words
About the company & team
Build your career where technology has a purpose. At Grupo Oesía, we develop dual-use digital and industrial engineering projects in strategic sectors, strengthening key capabilities for Spain and Europe through our technology centres and alongside a team of more than 3,800 professionals across Spain, Brussels, Latin America and Asia.
At Oesía Networks-Grupo Oesía, we develop technology with a clear commitment: building a future where innovation responds to the challenges faced by both people and the planet. This is how we contribute to creating a better, more efficient, secure and sustainable world.
Nearly 50 years of experience have enabled us to develop products and services that already benefit millions of people in healthcare, security and defence, space, telecommunications, finance, logistics and the agri-food sector.
But what truly sets us apart are the people who make each of those projects possible.
We want you to develop your full potential. That is why we build professional environments based on equal opportunities, inclusion and the recognition of every individual's talent.
We foster an environment where talent can learn, collaborate and continue growing, contributing new ideas and reaching its full potential. Because innovation thrives when different perspectives work towards a shared purpose.
If you are looking for a place to grow your career, take on new challenges and be part of impactful projects, we would love to meet you.
Engineering the Future, Together.
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