Prior to becoming a Legislator, Kevindaryán advocated tirelessly to encourage communities to become "Fair and Welcoming Communities" and to adopt Municipal ID programs that he hoped would ease some of the fears created by the Trump administration. He also volunteered for organizations like We Are Newburgh, Planned Parenthood, Nobody Leaves Mid-Hudson, Community Voices Heard and many others. Since becoming a legislator, his collaboration with grass root organizations has continued to grow

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Shortly after completing his graduate degree, Kevindaryán began working at PEOPLE, Inc. in Poughkeepsie, which focuses on hospital and jail diversion and tackling stigma around mental health and substance abuse. This later led him to work in Parole Re-entry services and as Medical Assisted Treatment Coordinator (MAT), which he continues to work in today. As a MAT Coordinator he works with individuals struggling with their drug addiction and is a bridge from the jail to the community. His role is help individuals work on their wellness, while also reducing recidivism. Kevindaryán has used his experience in human services to create a more just and equitable environment, advocating for criminal justice reform, legalization of marijuana, hospital and jail diversion and anti- racism training.