Cytokinetics is a late-stage, specialty cardiovascular biopharmaceutical company focused on discovering, developing and commercializing first-in-class muscle activators and next-in-class muscle inhibitors as potential treatments for debilitating diseases in which cardiac muscle performance is compromised. As a leader in muscle biology and the mechanics of muscle performance, the company is developing small molecule drug candidates specifically engineered to impact myocardial muscle function and contractility. The Senior Manager, Regulatory Writing is responsible for authoring regulatory documents, including but not limited to clinical study protocols, protocol amendments, clinical study reports (CSRs), clinical summaries, investigator’s brochures (IBs), pediatric documents, and regulatory authority briefing materials and responses. This individual will work independently with minimal oversight and in close collaboration with cross-functional teams to lead the development of these documents. All work must ensure scientific accuracy, alignment with study and submission objectives, compliance with standard operating procedures (SOPs), ICH/GCP and regulatory guidelines, and company goals. The Senior Manager will interpret and summarize complex regulatory data from a variety of sources in a concise, fit-for-purpose manner. This role requires strong attention to detail, critical thinking, and adherence to best writing practices. The Senior Manager will also lead and facilitate cross-functional meetings such as document kickoff meetings, data interpretation meetings, and comment resolution meetings. In addition, the role involves managing multiple complex writing projects, requiring excellent time management, problem-solving, and stakeholder engagement skills. The individual in this role will have demonstrated experience as a lead writer for a range of regulatory documents, including submissions, briefing materials, and responses to health authority questions. The role may also support other departmental Regulatory Writing activities as needed.