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 rePurpose Global, ensuring that twice as much plastic is removed from nature as is used in its products. ROLE AND RESPONSIBILITIES 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 ID to 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. WHAT WE LOOK FOR IN YOU 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 SolidWorks. 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 ( OUR IDEAL CANDIDATE WILL Have seen multiple product cycles from start to finish and shipping consumer hardware at high volume (seven‑figure annual units). Have extremely strong cross‑functional collaboration skills and work super well with others. Be a creative problem solver and make data‑driven decisions. Have one or more of the following additional skillsets: strong simulation/FEA skills, thermal simulation and heat transfer experience. EDUCATION BS in Mechanical Engineering, related discipline, or demonstrated equivalent experience. MS or higher preferred. PAX LABS PERKS & BENEFITS Competitive compensation, equity & bi‑annual performance reviews. Fully funded comprehensive medical, dental, and vision coverage. 401K plan. Generous PTO policy. Monthly wellness reimbursement. Cell phone reimbursement. Employee purchase program for discounted PAX devices. Weekly catered lunch, endless snacks and beverages. Dog‑friendly HQ in the Mission District of San Francisco. Employee assistance program including access to online legal support. COMPENSATION In addition to the benefits above, the salary for this role is $180,000 – $235,000 + equity. The final pay will depend on many factors, including years and depth of experience, level, and location of the employee. PAX VALUES Put Consumers First – We are here to enhance their lives. We put their needs first in everything we do. We work together to deliver unique solutions for their benefit. Build a Community – We are active and beneficial builders of a global community. We collaborate together to support sustainability, well‑being and social equity efforts—both internally and externally—to establish cannabis as a force for good. Innovate with Passion – We are passionate about enhancing the cannabis experience by making it positive, accessible and intuitive. We set the standards, innovate for consumers and find the yes as a team. Be the Solution and Collaborate – We work as a team to achieve winning outcomes, knowing we each individually are the solution, but can only succeed together. Lead with Humility and Transparency – We stay open and humble in everything we do. We value learning from each other, and cultivate transparency in our culture and products. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. As set forth in PAX Labs’ Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law. #J-18808-Ljbffr