Senior Mechanical Engineer

At PAX, we’re on a mission to enhance people’s lives through exceptional consumer experiences—honoring the plant through pioneering innovation, science-backed quality, and award-winning design. For nearly two decades, PAX has delivered high performance products crafted for precision, purity, and consistency that are trusted by millions worldwide.

Our culture is built on putting people at the center of everything we do, making an impact together, and having fun along the way. We believe exceptional products, a thriving employee experience, and strong operational rhythms go hand‑in‑hand. PAX has been recognized for its brand, culture and products by The New York Times’ Wirecutter, TIME, Fast Company, GQ, Gear Patrol, mg Magazine, High Times, and many more.

PAX is certified Plastic Negative across all product lines by re Purpose Global, ensuring that twice as much plastic is removed from nature as is used in its products.

Reporting to the Director, Mechanical Engineering, the Senior Mechanical Engineer will be responsible for designing new products that are innovative, cost‑efficient, reliable, and ship on schedule. You will troubleshoot and improve existing products, working closely with other engineering staff to create optimal solutions to difficult design, structural, thermal, and battery life issues. You may lead and direct the work of others.

• Integrate with cross‑functional teams to create high quality products that delight our customers.
• Work with  assess product features for manufacturability and recommend capable processes, equipment, etc.
• Lead the development of the mechanical product architectures, assemblies/modules, parts, and accessories.
• Detailed design of mechanical components, including complex assemblies and sub‑systems.
• Conduct rapid feasibility studies to design for mechanical robustness, schedule, and cost.
• Oversee internal and external prototyping.
• Facilitate design reviews and drive best practices.
• Collaborate closely with Reliability and Failure Analysis teams to root cause and resolve issues.
• Work directly with part suppliers on DFM, tooling kick‑off, tool bring‑up, and tool/part qualification.
• Collaborate with local and overseas engineering and manufacturing teams to qualify tooling and define visual quality requirements.
• Work directly with our CM partners in support of system assembly build activities.
• Collaborate extensively with Manufacturing Engineering on our Supply Chain team to develop and validate fixtures.

• 10+ years in consumer products and/or other product development.
• Deeply technical mechanical engineering background.
• Strong track record of shipping products from concept to mass production.
• Expert level proficiency in Solid Works.
• Experience working with Asian manufacturing and supply chains including travel to manufacturing sites.
• Excellent organizational, communication, presentation, and data analytics skills.
• Experience designing consumer‑oriented products using a broad range of processes and materials, with an emphasis on cosmetic plastic molding and metal parts (sheet metal, CNC, extrusion, etc.).
• Experience with the development and integration of electro‑mechanical components, such as flex circuits, batteries, and antenna.
• International travel is expected (