Senior Mechanical Engineer

Senior Mechanical EngineerWe're seeking a Senior Mechanical Engineer who is passionate about designing products that balance exceptional customer experience with scalable, reliable manufacturing. This role will own significant mechanical design efforts for critical sub-systems and collaborate cross functionally between Engineering, Operations, and Manufacturing teams. You'll help ensure our products are not only engineered for performance and reliability, but also intuitive for customers, manufacturable at scale, and cost-efficient.The role requires on-site presence at Bellwether's Berkeley HQ.Primary Responsibilities:Lead the design and development of complex mechanical subsystems from concept through manufacturing.Define system architecture, component selection, and engineering tradeoffs to meet product performance, reliability, and durability requirements.Create detailed CAD models, assemblies, and drawings with appropriate GD&T annotations.Design components and systems optimized for manufacturability, cost efficiency, scalability, and serviceability (DFM/DFA).Build and test prototypes to validate function, reliability, user interaction, and manufacturability.Develop engineering requirements, test plans, and documentation to support product development and validation.Lead and participate in design reviews, including concept reviews, PDRs, CDRs, and production readiness reviews.Work closely with suppliers, fabricators, and manufacturing to ensure designs meet quality standards and are delivered on schedule.Identify opportunities for product improvement, cost reduction, and manufacturing optimization.Collaborate cross-functionally with electrical, firmware, software, product, industrial design, operations, and supply chain teams to ensure successful product integration and launch.Troubleshoot complex hardware issues and implement robust engineering solutions.Provide technical guidance and mentorship to other engineers as needed.Willingness to travel overseas (Southeast Asia)Qualifications:Experience taking products from design through manufacturing at scale, with a strong emphasis on delivering a high-quality customer experience.7+ years of relevant industry experience in consumer products, appliances, or electro-mechanical systemsProficiency with CAD tools (OnShape experience preferred; PDM or PLM experience preferred).Bachelor's degree in Mechanical Engineering (or equivalent experience), with strong fundamentals in statics, dynamics, thermodynamics, heat transfer, and fluid mechanics/dynamics.Proven experience with a range of manufacturing processes (sheet metal, CNC machining, plastics, welding, die-casting, etc.)Demonstrated expertise in Design for Manufacturing (DFM), Design for Assembly (DFA), and mechanism designExperience collaborating with industrial designers and human factors teams to deliver consumer-grade user experiencesHands-on prototyping and lab testing skillsStrong communicator and collaborator, comfortable working across cross-functional teamsSelf-starter and operates with urgencyTakes ownership and embraces accountability with the ability to manage tasks with minimal supervisionAuthorized to work in the U.S. without sponsorshipWe are an Equal Opportunity Employer. We do not discriminate on the basis of race, color, religion, gender, sexual orientation, pregnancy, national origin, ancestry, age, marital status, physical or mental disability, genetic information, medical condition, veteran status, or any other class protected by local, state or federal law.