With time, Chajdas abandoned theatre for cinema. She started working as assistant director, co-operating with Agnieszka Holland on Prime Minister, the first Polish political fiction series. She also served as AD on the set of The Offsiders directed by Kasia Adamik, Janosik: A True Story and In Darkness, both directed by Agnieszka Holland and Kasia Adamik.
In an interview for TVN24, Chajdas said:
As assistant director to Agnieszka and Kasia, I've learned a great deal and gained a lot of experience. I think all directors should have experience serving different functions on set – this way you learn how to talk to the crew.
Chajdas gained her first solo directorial experiences on the sets of TV shows. She directed the soap opera Barwy Szczęścia (The Colours of Happiness, trans. NS) and the pseudo-documentary Ukryta Prawda (The Hidden Truth, trans. NS). A turning point came with the show Głęboka Woda (Into Deep Water, trans. NS), which tells the story of a group of social workers. The series, shot between 2011 and 2013, turned out a success with the audiences and gained several international awards, giving Chajdas opportunity to work on more television projects. In 2015, the artist directed three episodes of the show Uwikłani (In the Web, trans. NS), and two years later she directed the drama series Za Marzenia (Dreams & Wishes, trans. NS).
So far the first Polish series to be produced by Netflix, 1983, remains Chajdas's biggest success in television. Directed by four women directors (Chajdas, Agnieszka Holland, Kasia Adamik and Agnieszka Smoczyńska), the show is a counterfactual political fiction depicting an alternative history of Poland in which the communist regime never ended. The production premiered in 2018, sparking heated debates amongst Polish critics.