With her previous partner Yannick Bonheur, James represented France at the 2010 Winter Olympics, placing fourteenth.

In late 2007, James switched to pair skating, partnering briefly with British skater Hamish Gaman.

[6] Making their international debut, James/Bonheur placed seventh in November at their Grand Prix assignment, the 2008 Trophée Eric Bompard.

After placing fifth at the 2011 Coupe de Nice, the pair finished eighth at their first Grand Prix together, the 2011 Trophee Eric Bompard.

With a total score 8.92 points lower than Daria Popova / Bruno Massot, James/Ciprès received the silver medal.

Finishing sixth overall, James/Ciprès were the best French pair (outscoring Popova/Massot by almost 12 points) at the 2012 European Championships in Sheffield, England.

After taking gold at the 2013 International Challenge Cup, they placed eighth at the 2013 World Championships in London, Ontario.

Ciprès underwent surgery after a wrist injury and had to avoid lifts for a period, causing the pair to withdraw from Skate America.

James/Ciprès finished fourth at the 2014 CS Nebelhorn Trophy and fifth at both of their Grand Prix assignments, the 2014 Skate Canada International and 2014 Trophée Éric Bompard.

They placed second in the short program at the 2015 Trophée Éric Bompard before the event's cancellation due to the November 2015 Paris attacks.

[21][22][23] After taking silver at the 2016 CS Autumn Classic International, the pair competed at two Grand Prix events; they finished fourth at the 2016 Skate America and won the bronze medal at the 2016 Trophée de France.

In March, James/Ciprès placed tenth in the short program, sixth in the free skate, and eighth overall at the 2017 World Championships in Helsinki, Finland.

They then won medals at both of their Grand Prix assignments, taking bronze at the 2017 Skate Canada International and silver at the 2017 Internationaux de France.

James, reflecting on the start of her partnership, remarked, "I'm so glad I made that choice because we're a really good team today.

[30] In fourth after the short program at the Final, they again set a world record to place first in the free skate and win the gold medal.

[32] They won the free skate as well, taking the European pairs title, only the second French team to do so, and the first since Andrée Joly and Pierre Brunet in 1932.

"[33] In March, at the 2019 World Championships in Saitama, during the short program warm-up, James had a collision with Italy's Matteo Guarise, in which both skaters fell onto the ice.

At the same time, it was announced that James would appear on the revival of the Canadian CBC skating competition program Battle of the Blades in the fall of 2019, partnered with retired NHL player Brian McGrattan.

[37] On 10 December 2019, USA Today journalist Christine Brennan reported that Ciprès was under investigation for having sent a picture of his penis to a 13-year-old girl who was a student at their training center; and further, that coaches Zimmerman, Silvia Fontana, and Vinny Dispenza were accused of having known about this and attempted to cover it up in the runup to the 2018 Olympics.

[38] James/Ciprès would not compete again during the remainder of the season, and the allegations against Ciprès would subsequently factor into the scandals that forced the resignation of controversial FFSG chief Didier Gailhaguet in the spring of 2020.

[39][38] On 25 September 2020, it was announced that James would be returning to Battle of the Blades for its sixth season, this time partnered with Akim Aliu.

[42][43] In April 2021, rumours began to circulate that James was training with Canadian pairs skater Eric Radford, who was also a contestant on Battle of the Blades.

[44] The following day, Skate Canada announced that James and Radford would compete as a pair in the upcoming season, coached by Julie Marcotte and Ian Connolly.

"[47] At their second Grand Prix event, the 2021 Internationaux de France, the pair skated a clean short program to clear 70 points in that segment for the first time.

They opted to compete initially, placing fourth in the short program, and then withdrew, citing a need to "continue their training and preparation for the remainder of the competitive season.

[54] In the pairs event, James doubled her attempt at a triple toe loop, and they had movement on the side-by-side spins, resulting in them placing twelfth in the segment.

"[56] Days after the Olympics concluded, Vladimir Putin ordered an invasion of Ukraine, as a result of which the International Skating Union banned all Russian and Belarusian skaters from competing at the 2022 World Championships.

[58] In the free skate, they delivered a strong performance, but Radford underrotated a double toe loop and unexpectedly placed second in the segment, rising to the bronze medal position overall.

James said that "through ups and downs, joy and disappointment, I have been blessed with many people who have believed in me, encouraged me, and provided me with the skillset both on and off the ice, to make my dreams come true.

I am endlessly grateful for each and every coach, mentor, teammate and staff member that has contributed to my journey and success throughout the last 23 years.