The two announced they would be parting ways last year, however according to Hamilton the two remain friends and ‘speak most days’.
Since moving on from Hamilton, Cullen has thrown herself into extreme activities, including a solo paragliding flight, as she took some time off from the sport.
Who does Angela Cullen train currently?
The Kiwi currently trains IndyCar star Marcus Armstrong, who competes for Chip Ganassi Racing in the series.
Cullen frequently shares pictures of the two in the paddock on her social media, and has already had a positive impact on Armstrong’s career.
Armstrong achieved his first ever podium in IndyCar, finishing third at the Detroit Grand Prix.
The former F2 driver confirmed Cullen’s impact speaking to the Associated Press, and labelled Cullen as a ‘guiding force’, revealing she is ‘more than’ a trainer.
“We’ve been working together not that long,” Armstrong said.
“I don’t even know how I managed races without her because she helps me to first off eliminate the distraction, because there’s so many distractions in this sport.
“And our whole goal is performance driven. If it’s not delivering performance, then we’re not going to do it.
“So she’s very much a guiding force when it comes to what we do on a daily basis,” Armstrong added.
“She’s not exactly a physio, let’s say. She’s more than that. And if it’s not delivering lap time, we’re not going to do it, plain and simple.”