Senior Mechanical Engineer

About Us AON3D is a venture capital-backed, Montréal-based additive manufacturing hardware, software, and materials company. Our solutions drive innovation for hundreds of businesses in 25+ countries worldwide, ranging from small businesses to multinational Fortune 500 corporations. Our mission is to create intelligent tools that automate and optimize the additive manufacturing process, enabling anyone to manufacture high performance parts, in any material, with the touch of a button. About The Role As a Senior Mechanical Engineer, you'll lead the design and development of the hardware systems in our next-generation 3D printers. You'll architect, prototype, and validate critical subsystems (mechanical, thermal, kinematic, and electromechanical) that drive machine performance and reliability. This is a hands-on role with high impact: you'll make key system decisions, mentor junior colleagues, and shape the future of industrial 3D printing. What You Will Do

• Lead the design, prototyping, and validation of mechanical and electromechanical systems.
• Architect subsystems for performance, manufacturability, and reliability.
• Guide and review the work of junior engineers.
• Drive product certification and compliance (CE, UL, CSA, etc.).
• Collaborate with cross-functional teams to deliver robust, user-friendly products.
• Stay ahead of additive manufacturing technology and push its capabilities further.

What We Are Looking For

• Degree in Mechanical, Mechatronics, or related engineering field.
• 5+ years of industry experience across the full product development cycle.
• SolidWorks (or similar 3D CAD) expertise.
• Strong knowledge of mechanical design, kinematics, and control systems.
• Familiarity with thermal systems, sensors, and controllers.
• OIQ/Professional Engineer designation.
• Experience with manufacturing methods for high-performance products.
• Excellent leadership, organizational, and communication skills.
• Experience with PLM/document control systems.
• Nice to Have:

• 3D printing experience.
• Knowledge of polymers and polymer chemistry.
• Electronics or circuit design skills.
• Programming experience (Python).
• Industrial design exposure.

Location and Work Model Location: Montreal Work model: On-site Employment type: Full-time, permanent Start Your Journey With Us Apply today and join a team that is shaping the future of additive manufacturing through intelligent, high performance technologies. Not quite the right role for you? Feel free to share this posting with someone in your network who may be a great fit. AON3D uses AI supported tools within portions of the hiring process to promote fair, consistent, and objective evaluation. Certain initial screening steps may be automated to help identify qualified candidates. If your application is declined through an automated step, you may request a human review. We are committed to fostering a workplace where everyone feels respected, supported, and able to contribute. If you require accommodation at any stage of the application process, please contact careers@aon3d.com. Equal Opportunity Statement AON3D is an equal opportunity employer. All qualified applicants are given consideration regardless of race, religion, colour, gender, sex, age, sexual orientation, gender identity, national origin, marital status, citizenship status, disability, veteran status, or any other protected class as provided in applicable employment laws.