Tahlia Motik began her career as an actress and trained at Bengkel Akting Kuma. She has appeared in several short films, including Ringroad (2021), and Spektakel (2023). She also acted in the feature films Lampir (2024), Heartbreak Motel (2024), and Pasutri Gaje (2024).

In 2022, she wrote and directed her first short film, Status Quo, which was selected for the inaugural Screening Ledakan program in 2023. She later co-directed the music video Pabrik (2024) for the band Mother Bank. In 2025, she received the Jakarta Film Fund Award at Jakarta Film Week for her short film project Salon Gue Aje.

In addition to her work as an actress, director, and writer, Tahlia is also an Intimacy Coordinator. She has contributed to numerous short films, television series, and feature films, including Sammi, Who Can Detach His Body Parts (2025), Main Api (2024), Legenda Kelam Malin Kundang (2025), and Ghost in the Cell (2026), among others.