Mechanical Design Engineer (AI)

Location: Remote; applicants must be based in the United States, Canada, or the United Kingdom

Salary: $40–$125+ per hour, depending on task difficulty and specialization

Company

hirify.global engages engineering and other subject-matter experts to train and evaluate leading AI models.

What you will do

• Write challenging, closed-ended mechanical engineering problems that require practical engineering reasoning.
• Derive, verify, and document correct answers with clear worked solutions.
• Test problems against AI systems and refine them to expose reasoning limitations.
• Review AI-generated engineering analyses, designs, and technical documentation for correctness and real-world applicability.
• Review other contributors’ problems and solutions for ambiguity, rigor, and technical accuracy.

Requirements

• Must be based in the United States, Canada, or the United Kingdom.
• At least 2 years of professional mechanical engineering experience in design, product development, manufacturing, thermal, structural, automotive, aerospace, HVAC, robotics, energy, or a related field.
• Fluency with relevant engineering tools, such as CAD, FEA/CFD, MATLAB, or Python.
• Strong fundamentals in mechanics of materials, dynamics, thermodynamics, heat transfer, fluid mechanics, and manufacturing processes.
• Ability to write precise technical problems and clear worked solutions in fluent written English.
• Bachelor’s degree in mechanical engineering or a related field, completed or in progress.

Nice to have

• Specialization in mechanical design and CAD, structures and materials, thermal and fluids, dynamics and controls, or manufacturing.
• Experience with SolidWorks, Fusion 360, Onshape, Creo, NX, CATIA, or Inventor.

Culture & Benefits

• Flexible working hours and remote work.
• Independent-contractor engagement.
• Weekly payouts.
• Work is available on a project basis, with compensation tied to task difficulty and specialization.

Hiring process

• Apply for the role.
• Complete the qualification stage.
• Work on available projects and receive weekly payments.