R&D Mechanical Engineer — Wind Tunnel Development

OneSec; Fatih; On-site; TRY 180,000 - 360,000; Full time

Job summary

OneSec seeks a hands-on R&D Mechanical Engineer to design a variable-angle wind tunnel for VTOL test flights. You will select motors, bearings, actuators, and a pivoting mechanism, and integrate sensors and test rigs. CAD models and rapid prototyping will be central as you build from components to a working system.

You will work closely with flight-control and embedded-software teams to validate the wind tunnel in our drone verification pipeline and iterate based on data.

Qualifications

• Degree in Mechanical Engineering or related technical field.
• Strong SolidWorks CAD skills and real-world mechanical design experience.
• Experience designing mechanical systems or test equipment.
• Familiarity with motors, propellers, bearings, actuators, belts, gears, and structural assemblies.
• Experience with 3D printing, rapid prototyping, and workshop fabrication.
• Comfort using workshop tools and general hands-on fabrication.

Responsibilities

• Design the wind tunnel structure and airflow system.
• Select and integrate motors, propellers, bearings, actuators and structural components.
• Develop a pivoting mechanism for automatic wind angle changes.
• Design test stands and fixtures for VTOL aircraft mounting.
• Integrate force sensors and measurement equipment.
• Create parts and assemblies in SolidWorks.
• Produce components using 3D printing, CNC machining, sheet materials and workshop fabrication.
• Assemble, modify and troubleshoot the physical system.
• Conduct airflow, vibration, structural and mechanical tests.
• Collaborate with flight-control and embedded-software teams to integrate into verification pipeline.
• Improve the system based on test results and data.

Skills

SolidWorks

CAD design

Mechanical design

Rapid prototyping

Workshop fabrication

Problem solving

Education

Bachelor's in Mechanical Engineering

Tools

CNC machining

Dremel tools

Job description

OneSec is making food delivery 3 times faster and 10 times cheaper, by developing small AI powered delivery drones. Visit our website for more info: www.OneSec.com

Role Overview:

We're looking for a hands-on R&D Mechanical Engineer to design and build a variable-angle wind tunnel for testing our VTOL delivery drones.

The wind tunnel will generate controlled wind speeds and directions while the aircraft remains mounted on a force-measurement test stand. The complete system will include motors, propellers, structural frames, airflow components, force sensors, actuators, and a large pivoting mechanism that allows the wind angle to be adjusted automatically.

This is a highly practical role involving CAD design, prototyping, fabrication, assembly, instrumentation, testing, and continuous improvement.

Key Responsibilities:

• Design the complete wind tunnel structure and airflow system
• Select and integrate motors, propellers, bearings, actuators, belts, gears, and structural components
• Develop a pivoting mechanism that can automatically change the wind tunnel angle
• Design test stands and fixtures for mounting VTOL aircraft
• Integrate force sensors and other measurement equipment into the test setup
• Create parts and assemblies in SolidWorks
• Produce components using 3D printing, CNC machining, sheet materials, and workshop fabrication
• Assemble, modify, and troubleshoot the physical system
• Conduct airflow, vibration, structural, and mechanical tests
• Work closely with flight-control and embedded-software engineers to integrate the wind tunnel into our verification pipeline
• Improve the system based on test results and experimental data

Qualifications:

• Degree in Mechanical Engineering, Aerospace Engineering, Mechatronics, or a related technical field
• Strong SolidWorks or equivalent CAD skills
• Experience designing and building mechanical systems or test equipment
• Familiarity with motors, propellers, bearings, belts, gears, actuators, and structural assemblies
• Experience with 3D printing, rapid prototyping, and workshop fabrication
• Comfortable using workshop tools such as drills, Dremels, saws, adhesives, and hand tools
• Good understanding of mechanical loads, vibration, tolerances, airflow, and structural design
• Experience with wind tunnels, test rigs, drones, robotics, or aerospace systems is a plus
• Strong problem-solving skills and a practical, hands-on approach

Why You’ll Love Working Here

• Design and build a unique variable-angle wind tunnel from the ground up
• Work with an exceptionally talented team
• Work on cutting edge drone & AI technology
• Build real hardware and see it used in aircraft testing