<p>Masking is commonly understood as the suppression or modification of Autistic traits in response to social stigma and neurotypical expectations. Drawing on interviews with 38 Autistic adults and 14 workplace intermediaries in Canada, this paper reconceptualizes masking as a relational and ontological phenomenon shaped through workplace assemblages structured by professionalism, productivity, and neurotypical communicative norms. Informed by posthumanist theory, Deleuzian philosophy, and post-qualitative inquiry, masking is conceptualized as ontological modulation: the continual adjustment of communication, affect, embodiment, and relational orientation within workplace environments. Participants’ accounts show that workplace inclusion often remained conditional upon sustaining professional intelligibility while also revealing moments in which communicative expectations were renegotiated through disclosure, altered interactional practices, and neuroqueer relationality. The paper contributes to Critical Autism Studies by reframing masking as a socially and institutionally produced negotiation of workplace belonging rather than an individualized coping strategy.</p>