Persona is seeking a Senior Product Security Engineer to join their fast-growing team in San Francisco. Founded in 2018 and backed by top VC firms, Persona is building a universal identity infrastructure. The role involves collaborating with product teams to manage security risks, building automation tools, and supporting product security initiatives. The ideal candidate has 5+ years of software engineering experience, 3+ years in product security, strong communication skills, and a proactive approach to problem-solving. The position offers a hybrid work model with in-office days Tuesday through Thursday. Persona provides competitive compensation, including equity, and comprehensive benefits such as 401K matching, parental leave, mental health days, and wellness stipends. The company is recognized as one of Fortune's Best Medium Workplaces, emphasizing a people-first culture and inclusive environment.