Validation Engineer (Mechanical Engineering)

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 connects engineering experts with work focused on training and evaluating AI models.

What you will do

• Write challenging, closed-ended engineering problems based on mechanical engineering expertise.
• Derive and verify correct answers, documenting clear worked solutions.
• Test problems against AI systems and improve them when models solve them too easily.
• Review AI-generated engineering analysis, designs, and technical documentation for correctness and real-world applicability.
• Review other contributors’ problems and solutions for rigor, ambiguity, and correctness.

Requirements

• 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 specialty tools, such as CAD, FEA/CFD, or MATLAB/Python for engineering analysis.
• Strong fundamentals in mechanics of materials, dynamics, thermodynamics, heat transfer, fluid mechanics, and manufacturing processes.
• Fluent written English and the ability to write precise, unambiguous technical problems and clear worked solutions.
• A completed or in-progress bachelor’s degree in mechanical engineering or a related field.
• Must be based in the United States, Canada, or the United Kingdom.

Nice to have

• Experience in mechanical design and CAD, structures and materials, thermal and fluids, dynamics and controls, or manufacturing.
• Background as a Validation Engineer, Test Engineer, or Reliability Engineer.

Culture & Benefits

• Independent contractor engagement with flexible hours.
• Weekly payouts.
• Remote, project-based work with ongoing project availability.
• Tasks may range from occasional contributions to work equivalent to a full-time income.

Hiring process

• Apply.
• Complete the qualification step.
• Work on available tasks and receive weekly payments.