Senior Mechanical Engineer (Contract)

Optopax (M) Sdn. Bhd.; Penang; On-site; MYR 90,000 - 130,000; Full time

Job summary

Optopax (M) Sdn. Bhd. in Malaysia is seeking a hands-on Senior Mechanical Engineer to translate loosely defined optics/test requirements into robust, manufacturable camera-module hardware.

You will design integrated electro-mechanical and opto-mechanical systems, create Fusion 360 models, and lead prototyping with CNC, 3D printing, and sheet metal, ensuring DFM/DFA and GD&T compliance throughout development and production transitions.

Qualifications

• Degree in Mechanical Engineering or related field; 1–2+ years in industry.
• Strong skills in DFM/DFA, GD&T, tolerance analysis.
• Hands-on prototyping with CNC, 3D printing, sheet metal.
• Experience integrating electro-mechanical and motion systems.
• Experience with microcontrollers/SBCs in testing.
• Python and/or C++ for test/automation.
• Clear written and verbal communication.

Responsibilities

• Design integrated electro-mechanical and opto-mechanical systems for camera modules.
• Translate specifications from optics, test, and embedded teams into manufacturable hardware designs.
• Create detailed 3D CAD models and production drawings (Fusion 360 preferred).
• Apply DFM/DFA, GD&T, and tolerance stack-ups to ensure repeatable builds.
• Design and integrate multi-axis motion systems (linear stages, actuators, motors, encoders).
• Build and evaluate prototypes using 3D printing, CNC machining, and sheet-metal fabrication.
• Assemble and test precision mechanical and optical assemblies, including camera modules and fixtures.
• Develop and run test setups, collect data, and document results.
• Source components and work directly with vendors, machine shops, and optical suppliers.
• Support transition from prototype to low-volume and production builds.

Skills

DFM/DFA

GD&T

Tolerance analysis

Prototyping

3D printing

CNC machining

Python

C++

Electro-mechanical design

Vendor liaison

Education

Bachelor’s degree in Mechanical Engineering

Tools

Fusion 360

Job description

Optopax is looking for a hands-on Senior Mechanical Engineer who can take loosely defined requirements from optics and test teams and turn them into robust, manufacturable systems.

Key responsibilities

Design integrated electro-mechanical and opto-mechanical systems for camera modules, optical test fixtures, and precision assemblies

Translate specifications from optics, test, and embedded teams into manufacturable hardware designs

Create detailed 3D CAD models and production drawings (Fusion 360 preferred)

Apply DFM/DFA, GD&T, and tolerance stack-ups to ensure repeatable builds

Design and integrate multi-axis motion systems (linear stages, actuators, motors, encoders)

Build and evaluate prototypes using 3D printing, CNC machining, and sheet-metal fabrication

Assemble and test precision mechanical and optical assemblies, including camera modules and fixtures

Develop and run test setups, collect data, and document results

Source components and work directly with vendors, machine shops, and optical suppliers

Support transition from prototype to low-volume and production builds

About you

Degree in Mechanical Engineering, Mechatronics, or a closely related field with 1-2+ years of professional experience

Strong experience with DFM/DFA, GD&T, and tolerance analysis

Proven hands-on prototyping and fabrication experience (CNC/manual machining, 3D printing, sheet metal, fixtures, jigs)

Experience integrating electro-mechanical and motion systems

Comfortable working with small, precision mechanical and optical assemblies

Experience using and integrating microcontrollers and SBCs into testing platforms

Software experience (Python and/or C++) for test or automation

Lab-oriented mindset with attention to detail and practical problem solving

Clear written and verbal communication skills

About us

Optopax is a Silicon Valley–based design and OEM manufacturing company delivering integrated AI imaging solutions—from concept through production. We specialize in AI-enabled camera modules, precision optics spanning UV to LWIR, and custom embedded systems for robotics, industrial vision, submersible imaging, biomedical devices, AR/VR, and optical computing. We are a small, highly technical team headquartered in San Jose, California, with a global team, building real hardware that ships. Our Malaysian subsidiary, Optopax (M) Sdn. Bhd., extends this into Southeast Asia.