Mechanical Design & Motor Control Engineer

Criterion Tech; Lucknow; On-site; INR 600,000 - 1,200,000; Full time

Job summary

Criterion Tech in Lucknow is seeking a hands-on Mechanical Engineer to design mechanical assemblies and multi-DOF arms. You will select motors, tune drives, and develop embedded firmware for motor control on microcontrollers, while integrating PLC logic for industrial systems.

You will perform kinematic calculations, read schematics, apply GD&T, and contribute to design-for-manufacture decisions, collaborating with electronics and manufacturing teams to deliver robust mechanisms.

Qualifications

• Bachelor's degree in Mechanical Engineering or equivalent.
• 2+ years of hands-on experience designing and building physical mechanical/robotic systems.
• Proficiency with MCAD tools such as SolidWorks, Fusion 360, or Creo.
• Practical experience with motor control (stepper, servo, or BLDC) including driver selection and tuning.
• PLC programming experience (ladder logic or structured text).
• Engineering knowledge to read electrical schematics and basic PCB layouts.

Responsibilities

• Design mechanical assemblies, linkages, and mechanisms in CAD for multi-DOF arms, gear trains, and pulley/belt drives.
• Select, size, and tune motors and drives for the intended mechanism.
• Develop and debug embedded firmware for motor control on microcontrollers.
• Program and integrate PLC-based control logic for industrial systems.
• Configure RS485/CAN/Modbus communication between controllers and drives.
• Perform kinematic calculations for multi-axis mechanisms.
• Collaborate with electronics teams on interface design.
• Apply GD&T and tolerancing for chosen manufacturing methods.
• Design end-effectors, grippers, and mechanism enclosures.
• Maintain clear technical documentation of designs and tests.

Skills

Hands-on mechanical design

Documentation

Kinematic calculations

Education

Bachelor's degree in Mechanical Engineering

Tools

SolidWorks

Fusion 360

Creo

STM32

ESP32

Job description

• Design mechanical assemblies, linkages, and mechanisms in CAD, including multi-DOF arm structures, gear trains, and pulley/belt drive systems
• Select, size, and tune motors and drives (stepper, servo, or BLDC) for the intended mechanism
• Develop and debug embedded firmware for motor control on microcontrollers
• Program and integrate PLC-based control logic for industrial-grade systems
• Configure and troubleshoot RS485/CAN/Modbus communication between controllers and drives
• Perform kinematic calculations (forward/inverse) for multi-axis mechanisms
• Read and debug PCB-level driver boards; collaborate with electronics teams on interface design
• Apply GD&T and tolerancing appropriate to the chosen manufacturing method (machining, 3D printing, or sheet metal)
• Make sound design-for-manufacture (DFM) decisions based on realistic fabrication capability
• Design end-effectors, grippers, and mechanism enclosures as needed
• Maintain clear technical documentation of designs, revisions, and test results

Essential Qualifications

Bachelor's degree in Mechanical Engineering, Mechatro Role & responsibilities

Preferred candidate profile

• 2+ years of hands‑on experience designing and building physical mechanical/robotic systems (substantial academic project work will be considered)
• Working proficiency in an MCAD tool such as SolidWorks, Fusion 360, or Creo
• Practical experience with motor control stepper, servo, or BLDC — including driver selection and tuning
• PLC programming experience (ladder logic or structured text)
• Working knowledge of embedded C/C++ on microcontrollers (STM32, ESP32, or similar)
• Understanding of RS485/CAN/Modbus communication protocols
• Ability to perform kinematic calculations for multi-DOF mechanisms
• Comfortable reading electrical schematics and basic PCB layouts
• Familiarity with GD&T, tolerancing, and manufacturing methods (CNC machining, 3D printing, sheet metal)
• Strong documentation habits and comfort working from vendor datasheets/manuals independently
• Experience with version control (Git) is a plus

Good to Have

• Experience designing end-effectors or gripper mechanisms
• Exposure to safety-rated E-stops or interlocks on physical machines
• Prior experience in a regulated or safety-critical engineering environment

What We're Looking For

Someone who is equally comfortable at a CAD workstation and at a workbench with a multimeter or oscilloscope in hand — not purely a designer or purely a coder, but someone who can own a mechanism from concept through to a working, controlled machine.