In April 2017, Jinny took a part in WWE's WrestleMania 33 Axxess, where she was defeated by Toni Storm on day two and three. A little over a year later, in June 2018, it was announced that WWE had signed Jinny to a contract. Around that time, Jinny was announced as one of the four women who would compete in a fatal four–way match to determine the number one contender for the NXT Women's Championship on day one of United Kingdom Championship Tournament. At the event, Jinny was injured during the match, forcing her out of it and the match was later reverted to a triple threat between Toni Storm, Killer Kelly and Isla Dawn.
In July, Jinny took part of the 2018 Mae Young Classic, where she was defeated in the first round by her rival Toni Storm. Shortly after her participation in the Mae Young Classic, Jinny was announced as part of the women's roster in the newly created NXT UK brand. After a series of vignettes promoting her debut, Jinny made her television debut on the 7 November episode, where she attacked Dakota Kai from behind after she lost a match against Toni Storm. Jinny would then enter a tournament for the inaugural NXT UK Women's Championship, where she would defeat Millie McKenzie in the first round only to be eliminated from the tournament by Toni Storm in the semi–finals.
On the May 15, 2019 episode of WWE NXT UK, Jinny, alongside the debuting Jazzy Gabert, interrupted a match between Killer Kelly and Xia Brookside, attacking the two in the process and taking on Gabert as her enforcer. On the June 19th episode of NXT UK, Jinny as well as other women competed in a battle royal to determine who will get a future opportunity for the NXT UK Women's Championship. In the match, Jinny got eliminated by Brookside. On the July 17, 2019 episode of NXT UK, Jinny defeated Brookside thanks to Gabert's interference. Following this, Jinny and Jazzy went on to feud with Rhea Ripley and Piper Niven, where they ultimately came out on the losing side of things in various tag and singles matches. Jinny defeated Amale on the December 19 episode of NXT UK, where after the match Jazzy refused to continue to beat down Amale, which led to the two parting ways as they went into 2020. On April 2, 2020, Jinny teamed with Kay Lee Ray in a successful effort against Piper Niven and Dani Luna.
On September 24, 2020, Jinny made her return to NXT UK television, staring at Kay Lee Ray after her successful title defense against Piper Niven, making it clear she had her sights set on the gold. The following week, Jinny made her return to the ring by defeating Xia Brookside and claiming she would be even more ruthless than before. On October 8, Jinny was the last to appear during a melee between the entire roster during Kay Lee Ray's state of the union, where Jinny went right after the champion. On November 5, 2020, Jinny defeated Aleah James in a squash match. After the match, Jinny called out Piper Niven, claiming she lacked killer instinct and the determination to be champion. Niven came out to challenge Jinny and the two argued before Kay Lee Ray provoked them both to prove which of them had got what it took to challenge her. Jinny made her presence felt during the Falls Count Anywhere championship match between Ray and Niven on November 19, where she first attacked Niven at ringside. Jinny ultimately cost Niven the match by attacking her with a chair backstage, which sent her and Ray crashing through a table. This allowed Ray to retain her championship again. On November 26, Jinny defeated Isla Dawn. After the match, Jinny mocked Piper Niven. Tensions continued to boil between Jinny and Niven, and eventually a match between the pair was announced for the first episode of NXT UK in 2021, where the winner would be the next to challenge Kay Lee Ray for the championship. On January 7, 2021, Jinny successfully defeated Niven after interference from Joseph Conners, whom Jinny aligned herself with. Two weeks later on the January 21 episode of NXT UK, Jinny was defeated by Ray, who retained her championship despite interference from Conners. Following this, Jinny and Conners would continue to feud with Piper Niven, who gained an unlikely ally in Jack Starz. On the March 11, 2021 episode of NXT UK, Jinny and Conners were defeated by Niven and Starz in a mixed tag team match. Conners eventually defeated Starz in a singles match, thus ending the feud between the two teams.
On the April 15, 2021 episode of NXT UK, Jinny developed a problem with Dani Luna and the following week she successfully defeated Luna. Two weeks later, Jinny was announced as part of a five-woman gauntlet match to determine the next challenger to the NXT UK Women's Championship. On the June 17 episode of NXT UK, Jinny and Conners faced Luna and Flash Morgan Webster in a losing effort. On June 24, Jinny berated newcomer Mila Smidt, hinting at a potential match down the line. Jinny would then begin to feud with Aoife Valkyrie, saying that Valkyrie had avoided her since her arrival in NXT UK. On the July 22 episode of NXT UK, Jinny would appear on Supernova Sessions, where she vowed to end Valkyrie, and later that evening Valkyrie handed Jinny a feather to signal that she accepted Jinny's challenge. On the July 29 episode of NXT UK, Jinny defeated Valkyrie following a distraction from Joseph Conners. It was then announced that Jinny would face Valkyrie again, but this time it would be in a no disqualification match where Conners would locked in a cage; on August 26, Jinny was defeated in that match. On the September 16 episode of NXT UK, Jinny found that Isla Dawn had invaded her dressing room. The following week, Jinny defeated Dawn. Two weeks later, Jinny defeated Emilia McKenzie in singles action. Jinny then made it clear to Meiko Satomura that she wanted a title opportunity. Jinny competed in her championship match against Satomura on the November 4 episode of NXT UK, but she was unsuccessful. On the November 25 episode, Dani Luna was scheduled to compete against Angel Hayze, but Jinny took Luna's place. Jinny declared her affiliation with Joseph Conners was now over, before proceeding to defeat Hayze by pinfall. In the last months of NXT UK, Jinny developed an issue with Amale, and on the January 27, 2022 episode, Jinny defeated her by pinfall.
On January 14, 2023, Jinny announced her retirement due to an injury.