Staff Regulatory Affairs Specialist - Pleasanton, CA

Calyxo, Inc. is a medical device company headquartered in Pleasanton, California, USA. The company was founded in 2016 to address the profound need for improved kidney stone treatment. Kidney stone disease is a common, painful condition that consumes vast amounts of healthcare resources each year. Our team is led by executives and investors with a proven track record of commercializing paradigm-shifting devices to meet unmet needs within urology. Are you ready to change the future of kidney stone treatment? We are seeking high achievers who want to be part of a dynamic team working in a fun, diverse atmosphere. Summary: We are seeking an accomplished Staff Regulatory Affairs Specialist to serve as a senior individual contributor and subject matter expert within our growing Regulatory Affairs organization. This is a strategic, high-visibility role for a seasoned regulatory professional who can independently drive complex U.S. and international submissions, shape regulatory strategy across the product portfolio, and mentor junior team members. The ideal candidate brings deep FDA expertise, advanced command of global regulatory landscapes, and a proactive, collaborative mindset to navigating complex, evolving regulatory environments. As a senior member of the Calyxo Regulatory Team, you will work closely with Research & Development, Operations, Quality, Clinical and Medical Affairs, Marketing, and Legal to ensure regulatory alignment from concept through commercialization—balancing speed with compliance as we bring category-defining medical devices to market. In This Role, You Will : Lead the strategy, preparation, submission, and negotiation of complex U.S. and international regulatory filings (including 510(k)s, Q-Subs/Pre-Submissions, Special 510(k)s, and Letters to File), ensuring timely approvals and serving as the technical lead on the most challenging submissions. Drive the development and continuous improvement of scalable regulatory infrastructure—including processes, systems, SOPs, and team capabilities—to support organizational growth and evolving compliance needs. Act as a primary liaison with FDA and global regulatory bodies, leading audits, inspections, and key communications, and representing Calyxo with confidence and technical authority. Provide expert regulatory input into product development and design enhancements—including biocompatibility, sterilization, packaging, shelf life, clinical strategy, product roadmaps, and labeling decisions—to ensure compliance is built into the development process. Lead regulatory support for Operations and cost-reduction projects. Oversee regulatory review and approval of promotional materials, advertising claims, and customer-facing communications, owning the claims matrix and serving as final regulatory reviewer. Partner with Quality to ensure our QMS meets global regulatory expectations and supports continuous improvement. Ensure compliance with FDA and other applicable regulations and regulating bodies, including FDA QMSR transition activities. Monitor and interpret proposed regulatory changes from the FDA and other agencies, including worldwide regulatory authorities, and translate them into actionable guidance for the business. Maintain visibility into evolving global regulatory requirements and proactively update internal stakeholders. Develop and manage domestic and international registration and listing activities. Lead risk management, health hazard evaluations, and decision-making processes for field actions, recalls, or advisory notices. Drive regulatory compliance activities such as CAPAs, NCMRs, complaints, and MDR/eMDR processes; serve as a senior reviewer and approver where required. Mentor and develop junior Regulatory Affairs staff, providing technical guidance, review of deliverables, and coaching on regulatory strategy and submission excellence. Champion a culture of regulatory excellence, knowledge sharing, and continuous improvement across the Regulatory…