Yoonjee Koh is the Director of Intermediate Architecture Studios and Faculty at The Boston Architectural College. She received a Master in Architecture, as well as a Master in Design Studies in History and Philosophy, from Harvard University Graduate School of Design. Prior to enrolling at Harvard, she complete her Bachelor of Architecture at Cornell University in Ithaca, NY. Yoonjee has taught at Harvard University and has critiqued at HarvardGSD Career Discovery, Northeastern University, MIT, and Cornell University.

Yoonjee is involved in the Boston community, having served as a project manager at Studio Echelman and Design Consultant at CultureNOW. She is the editor of Oblique, an academic journal on architectural theory founded with Natalia Escobar during her stay at Harvard GSD with the guidance of Michael Hays. During her free time, she volunteers at the BSA KidsBuild to work with young, rising potential architects.

She has won various distinctions and awards, including recognition of her work from the Les Diablerets Swiss Congress. She is also the recipient of The Boston Architectural College's Edco Grant, given to faculty whose projects test new, innovative ideas and enhance the academic enrichment of BAC students. Through the Edco Grant, Yoonjee hopes to foster intellectual dialogue and collegiate culture through publication platforms as well as found discursive exchanges like Conversations at the Loft and PostLoft at the BAC.

Yoonjee's research interest encompasses criticality in design pedagogy, cultural identity, and global architectural history. Her work has been published through Docomomo International and Architectural Record as well as exhibited at MoMA PS1.