The Senior Payroll and Benefits Specialist role at Allen Control Systems supports a high-growth defense startup developing autonomous drone technology. The position serves as the subject matter expert for all payroll and benefits operations, managing bi-weekly and semi-monthly payroll processing across multiple states, overseeing tax compliance, and administering health, retirement, and voluntary benefit plans. Key responsibilities include maintaining regulatory adherence, managing vendor relationships, optimizing system integrations, and providing strategic reporting to Finance. This opportunity appeals to professionals seeking to join an engineering-first culture with a mission to impact national defense. The role offers the chance to build and scale processes during a critical growth phase, featuring a competitive equity package and comprehensive benefits in a dynamic startup environment.