Multidisciplinary Design & Optimization (MDAO) Engineer – UAS Designer

What we expect from you:

• Experience in conceptual and preliminary design of aircraft, preferably UAS.

• Proficiency in multidisciplinary analysis and optimization methodologies, including constrained optimization and design space exploration.

• Solid knowledge of flight mechanics, aerodynamic modeling, aircraft performance, mass properties, propulsion integration, and structural sizing.

• Ability to interpret simulation results, identify design drivers, and justify technical recommendations.

• Experience with numerical methods, design automation, parametric modeling, uncertainty management, and sensitivity analysis.

• Strong engineering judgment and the ability to work with incomplete or evolving requirements.

• Proficiency in Matlab/Simulink, C++ and Python programming (experience with OpenMDAO, PyOptSparse, or similar tools).

• Knowledge of OpenVSP, XFLR5, CATIA, and CFD/aerodynamic solvers will be positively valued.

What we offer you:

These are some of the benefits you will enjoy at Sener:

• You will have the opportunity to participate in innovative, high-tech international projects, collaborating with a multidisciplinary and highly qualified team.

• You will enjoy better management of your time through our flexible working hours and remote work policies.

• You can optimize your salary with our flexible compensation plan (meal card, private health insurance, childcare vouchers...) and you will have life and accident insurance.

• We will take care of you with our physical and emotional well-being program, which includes sports, workshops, etc.

• We will boost your professional development with technical, skills, and language training, etc., so you can keep growing and achieving your goals.

At Sener Aerospace and Defense, innovation in aeronautics is not just a matter of technology: it is a matter of vision and multidisciplinary talent.

We are committed to advanced engineering applied to the design of unmanned aerial systems (UAS). Our aeronautics team develops innovative solutions for complex missions, integrating disciplines such as aerodynamics, structures, propulsion, control, and optimization.

Behind the projects that have positioned us as leaders in the sector—from UAS platforms for complex missions to in-house automated design tools—there are engineers capable of integrating aerodynamics, structures, propulsion, control, and mission into a single architecture.

What you will do

• Lead and support multidisciplinary design and optimization activities for UAS platforms, from the conceptual phase to detailed design.

• Develop and maintain models for sizing, performance, mass, aerodynamics, propulsion, and stability.

• Conduct conceptual and preliminary design studies, including sensitivity analyses and trade-offs between configurations.

• Define and evaluate mission profiles, performance constraints, and operational envelopes.

• Integrate aerodynamic, structural, propulsion, control, and systems considerations into aircraft-level design decisions.

• Perform optimization studies on geometry, mass distribution, propulsion sizing, aerodynamic efficiency, control authority, and mission performance.

• Support the definition of requirements, design constraints, margins, and verification logic.

• Generate technical documentation, design study reports, and engineering presentations.

• Contribute to the development of in-house tools, automated workflows, and data-driven design processes.