Freelance Mechanical & Pneumatic Design Engineer (Japan-based) – Pulse Unit for Non Shut-off Pulse Tool Ended

Alva Engineers (India) is an engineering solutions company specializing in advanced bolting technologies under our brand Metal Fishes. We develop innovative, reactionless fastening tools — including hydraulic, pneumatic, and electric systems — for heavy vehicle and industrial applications.

We are currently developing a non shut-off pneumatic pulse tool, and are looking for a freelance mechanical design engineer in Japan experienced in pneumatic system and tool design.

⚙️ Project Overview:

We require mechanical and pneumatic design support for the pulse unit of a non shut-off pulse tool. The goal is to develop a reliable and efficient pulse mechanism that delivers controlled torque while minimizing reaction forces.

🎯 Key Responsibilities:

Design and model the pulse unit mechanism (rotor, blades, pulse chamber, oil sealing system).

Optimize design for durability, efficiency, and consistent torque output.

Assist in component material selection and manufacturability improvements.

Prepare 2D/3D CAD drawings (SolidWorks, CATIA, Creo, or equivalent).

Collaborate on performance testing and design iterations.

Provide engineering documentation and technical reports.

🧩 Required Skills & Experience:

Strong background in mechanical and pneumatic tool design.

Experience designing pulse tools, air motors, or hydraulic systems preferred.

Familiarity with non shut-off pneumatic pulse mechanisms is a strong advantage.

Proficient in 3D CAD software (SolidWorks / CATIA / Creo / NX).

Understanding of fluid dynamics and torque transfer systems.

Based in Japan or able to communicate effectively in English/Japanese.

Prior experience with aerospace, automotive, or industrial tooling design is desirable.

📍 Location:

Japan (remote or hybrid — local collaboration preferred)

⏱️ Project Duration:

3–6 months (extendable based on performance and project needs)

💰 Compensation:

Negotiable based on experience and scope. Please include your hourly rate or project quote when applying.

📎 How to Apply:

Please include the following in your application:

Portfolio or examples of relevant pneumatic/mechanical design work.

Details of past experience in pulse tool or air tool design.

Available start date and preferred communication method. read less