Jani who began playing at age six, reached the first final on the WTA Tour in 2016, at the Brasil Tennis Cup partnering Tímea Babos.

[citation needed] She was awarded a wildcard entry to the 2016 Summer Olympics in Rio de Janeiro, along with Tímea Babos to play in women's doubles.

[citation needed] Jani made her Grand Slam tournament main-draw debut at the 2011 US Open, losing to wildcard Sloane Stephens in the first round.

[4] Partnering Panna Udvardy, she was runner-up in the doubles at the WTA 125 2022 Iași Open, losing to Darya Astakhova and Andreea Roșca in the final which went to a deciding champions tiebreak.

[5] Jani made her first WTA 125 singles final at the 2022 Țiriac Foundation Trophy, defeating Andreea Roșca in the semifinals.