Demo

Principal Mechanical Engineer

Motion Recruitment Partners, LLC
Woburn, MA Full Time
POSTED ON 6/21/2026
AVAILABLE BEFORE 7/21/2026
A rapidly growing robotics and industrial automation startup in the Greater Boston area is hiring a full-time Senior Mechanical Engineer to develop advanced robotic systems that are transforming automotive service through automation. This role focuses on the design, analysis, prototyping, testing, and production release of complex mechatronic systems involving multi-axis motion, industrial automation, and robotic manipulation. The position offers the opportunity to work directly on innovative robotics technology, taking products from concept through deployment while helping shape the future of an emerging industry leader.

This is an exciting opportunity for a mechanical engineer who enjoys solving challenging real-world engineering problems and working across multiple disciplines. The company is seeking someone with deep expertise in mechatronic system design, system dynamics, and motion systems who can thrive in a highly collaborative startup environment. You'll have significant ownership over product development, work alongside robotics, software, controls, and electrical engineers, and play a key role in bringing cutting-edge automation technology into production.
Required Skills & Experience
Bachelor's Degree in Mechanical Engineering, Robotics Engineering, or related discipline
5-8 years of professional experience in robotics, automation, or industrial equipment development
Proven experience designing electro-mechanical systems from concept through production release
Strong expertise in actuator, motor, transmission, and sensor selection and integration
Experience working with encoders, load cells, proximity sensors, and other industrial sensing technologies
Expertise in system dynamics, simulation, modeling, and vibration analysis
Experience performing finite element analysis (FEA) for mechanical system validation
Proficiency with SolidWorks and mechanical CAD design tools
Experience creating engineering drawings and documentation compliant with ASME Y14.5 standards
Strong analytical, troubleshooting, and problem-solving abilities
Excellent communication and cross-functional collaboration skills
Desired Skills & Experience
MS or PhD in Mechanical Engineering or related field
Experience designing industrial tooling, fixtures, or automation equipment
Experience developing free body diagrams and governing equations for electro-mechanical systems
Experience performing static and dynamic load calculations
Experience conducting kinematic and motion analysis
Experience working with industrial controls and automation systems
Experience establishing engineering documentation processes, BOM structures, CAD vaults, and part numbering systems
MATLAB and/or Python programming experience
Startup experience developing products in fast-paced environments
What You Will Be Doing Tech Breakdown
45% Mechanical & Mechatronic System Design
25% Modeling, Simulation & Engineering Analysis
20% Prototyping, Testing & Validation
10% Documentation & Manufacturing Support
Daily Responsibilities
70% Hands On
10% Project Coordination
20% Team Collaboration
The Offer
Bonus eligible
Equity eligible
You will receive the following benefits:
Medical Insurance
Dental Benefits
Vision Benefits
Paid Time Off (PTO)
401(k)

Applicants must be currently authorized to work in the US on a full-time basis now and in the future.

Salary : $150,000 - $200,000

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