[9] She reached the quarter-finals of the 2010 AIBA World Championships, losing to eventual silver medalist Vera Slugina of Russia.

[15] Under the guidance of Barry's son, Shane McGuigan,[16] she made her professional debut on 26 May 2017, winning a six-round points decision (PTS) against Karina Kopinska at the Motorpoint Arena in Cardiff, Wales.

[17] After scoring technical knockout (TKO) wins over Bojana Libiszewska and Bilitis Gaucher in July and October respectively,[18][19] Cameron fought Edith Ramos for the vacant IBO Inter-Continental female super-featherweight title on 11 November 2017 at the Royal Highland Centre in Edinburgh, Scotland, winning via third-round TKO.

She successfully retained her title via shutout unanimous decision (UD) over ten rounds, with all three judges scoring the bout 100–90 in favour of Cameron.

[22] She next scored a sixth-round TKO win in June over Natalia Vanesa del Valle Aguirre in a non-title fight,[23] before making a second defence against Jessica Gonzalez on 13 October at the York Hall in London, with the vacant WBC Silver female lightweight title also on the line.

In the ninth, Gonzalez was deducted a point for hitting Cameron in the back of the head, while in a clinch, after the referee had called for the fighters to separate.

[24] In February 2019, Cameron announced on Twitter she had left Cyclone Promotions and trainer Shane McGuigan,[25] stating, "...they know the distress they have caused me and how isolated they made me feel, humiliated and just deflated, they had no time for a female boxer", as well as citing training issues; "My last fight camp was four weeks and I'm sick of the circumstances of chasing money and it's been seen in my most recent performance (Jessica Gonzalez)".

Cameron stepped up the pressure from round five and onwards, unloading power punches in combinations and landing at will, rarely troubled by her opponent.

[39] After knocking Sanchez down in the ninth-round,[40] Cameron went on to win the fight by UD to claim the WBC mandatory position in a second weight class.

[46] After staying behind the jab and following up with combination punches for ten rounds, with Araújo offering little resistance, Cameron won by a shutout UD in what outlets described as a dominant win.

[51] After Cameron suffered a hand injury during training,[52] the bout was rescheduled to 29 May and took place at the Michelob Ultra Arena in Paradise, Nevada, as part of the undercard of the Devin Haney vs. Jorge Linares world title fight.

Referee Celestino Ruiz determined that the ropes had held Hernández up and issued a standing eight count, giving Cameron a 10–8 round.

[60][61] Having already parted ways with her trainer, Jamie Moore, and switched to work under the guidance of Sheffield-based Grant Smith earlier in the year,[62] Cameron split from promotors Matchroom in May 2024 signing up with Frank Warren's Queensbury Promotions.

[63] Cameron won the vacant interim WBC female super-lightweight title with a majority decision victory over France's Elhem Mekhaled at Resorts World Arena in Birmingham on 20 July 2024.

[64][65][66][67] Cameron defended her title with a unanimous decision win over Patricia Berghult at Resorts World Arena in Birmingham on 2 November 2024.