Rethink First is a leading behavioral health technology company working to make mental wellness, education, and support accessible and scalable. Through our suite of cloud-based platforms—including RethinkEd, RethinkCare, and RethinkBH—we serve educators, employers, and providers with tools that deliver measurable, inclusive outcomes. We're on a mission to make behavioral health more effective, equitable, and human—and we’re looking for a creative visionary to help lead that charge. We are seeking a Senior Full Stack Engineer to join our Architecture Team. This role is ideal for an experienced engineer who thrives at the intersection of hands-on coding and strategic architecture. You will help shape technical direction, champion best practices, mentor other developers, and ensure our systems are scalable, secure, and reliable. This position requires deep expertise in Microsoft technologies (C#, .NET, SQL, Azure), strong knowledge of modern software design, and the ability to translate business needs into effective technical solutions.