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). As a MAT Coordinator he worked with individuals struggling with their drug addiction and was a bridge from the jail to the community. His role aimed to help individuals work on their wellness, while also reducing recidivism. Currently, he is a program director for Adapt of the Hudson Valley, where he works with individuals with developmental disabilities in residential housing. Kevindaryán has used his nearly 15 years of experience human services to create a more just and equitable environment; advocating for criminal justice reform, affordable housing, hospital and jail diversion and anti- racism training.