Principal Mechanical Engineer, Mechatronics Design

Job Description

Job Description

Staff/Principal Mechanical Engineer – Mechatronics Design
Location: Onsite – Boston, MA

Relocation assistance available for the ideal candidate

Unlimited PTO

Our client, an ambitious and fast-growing robotics startup, is looking for a Staff or Principal Mechanical Engineer to help shape the future of cutting-edge industrial mechatronics systems. If you're a hands-on, deeply technical engineer ready to lead in a high-impact environment, this is your chance to build and ship the next generation of robotic products from the ground up.

What You'll Do:

• Lead the design, prototyping, and testing of complex mechatronic systems with multi-axis actuation
• Drive product development from concept through production—own the details
• Design and spec motors, actuators, sensors, and integrated motion systems
• Lead design reviews, validate performance with FEA, and write test plans and documentation
• Work closely with cross-functional teams in a dynamic, agile startup setting

What We're Looking For:

• BS in Mechanical, Robotics, or related engineering discipline (MS/PhD a plus)
• 10+ years of mechanical design experience in robotics or automation
• Expertise in:
• Actuator and drive systems
• Pneumatics/hydraulics
• Sensors
• Expertise running finite element analysis on mechanical structures including static, dynamic and fatigue modes
• Solid skills in SolidWorks, 3D CAD (OnShape preferred), GD&T (ASME Y14.5), and documentation
• Experienced with P&ID, pneumatic and hydraulic circuits design including driving loads, sensing and actuation of manipulators, solenoid valves, regulators etc.
• Experience with system dynamics, simulation, and vibration analysis is a big plus
• Demonstrated experience both designing electro-mechanical industrial systems from concept design through product release/shipment at scale
• Bonus: MATLab or Python experience, industrial tooling design, BOM structuring

Why You'll Love It:

• Design from scratch, prototype fast, and see your systems come to life
• Make decisions with impact in a startup that values autonomy and execution
• Collaborate with a small team of sharp, driven engineers
• Be part of something new, exciting, and growing fast
• Competitive medical, dental, vision, and 401k benefits
• This is a unique chance to join a one-of-a-kind organization where your role will have a lasting impact on your career

This is your opportunity to join a team where your designs will ship , your voice will matter , and your creativity will be valued .

Apply today and help bring tomorrow's industrial robots to life.

To comply with some state laws, the annual base salary range for this position has been provided. The range given is broad and should be considered as a guideline only. Our client will consider a candidate's work experience, education/training, key skills, the salaries of current employees in similar roles, and other factors when extending an offer.