After Ponomarenko ended his partnership with Sara Feng in January 2014, he later moved to Novi, Michigan, to train under Igor Shpilband.

Ponomarenko's mother, Marina Klimova, thought the team would eventually be a good match after seeing Carreira in Lake Placid, New York.

[3] Their Junior Grand Prix (JGP) debut came in September 2014; they placed fifth in Ostrava, Czech Republic, and then fourth in Tallinn, Estonia.

[4] Competing in the 2015 JGP series, Carreira/Ponomarenko placed fourth in Riga, Latvia, and then won the silver medal in Toruń, Poland.

[4] Ranked sixth in the short and third in the free, they won the bronze medal at the 2017 World Junior Championships, which took place in March in Taipei, Taiwan.

[5] Making their senior international debut, Carreira/Ponomarenko achieved silver at the 2018 CS U.S. Classic in Salt Lake City, having finished second to Hubbell/Donohue.

[7] Beginning on the Challenger series, Carreira/Ponomarenko won silver for the second consecutive U.S. Classic and a second bronze medal at Nebelhorn Trophy.

They won gold at their final Challenger event in November, the Asian Open Trophy, having finished first in both segments.

[11] Fourth in the free dance as well, they would have placed third in that segment but for the invalidation of their choreographic character step sequence due to a violation of the distance requirement.

[12] Carreira broke her foot during the spring quarantine period in response to the COVID-19 pandemic, though she had recovered by the time the rink reopened in the summer.

[13] With the pandemic affecting international travel, Carreira/Ponomarenko were assigned to compete at the 2020 Skate America, attended mainly by dance teams training in the United States.

[17] On January 27, Carreira announced on Instagram that she and Ponomarenko would be departing their longtime coach Igor Shpilband.

When they resumed working together in May, retired ice dancers Madison Hubbell and Adrián Díaz joined their coaching team.

[27] At the 2022 Grand Prix of Espoo, Carreira/Ponomarenko were third in the rhythm dance, 1.14 points clear of home team Turkkila/Versluis, and described themselves as "really happy with the performances.

[29][30] Following the Grand Prix, Carreira/Ponomarenko made a belated Challenger appearance, winning gold at the 2022 CS Golden Spin of Zagreb.

Considered likely bronze medalists going in, Carreira/Ponomarenko unexpectedly placed fourth in the rhythm dance due to a twizzle error.

[4] For the first time since the onset of the pandemic, Carreira and Ponomarenko had the entire offseason for training and other upgrades, which in this case included new equipment, nutritional plans, and athletic trainers.

They were only fifth in the free dance after a twizzle error from Carreira, but remained third overall, 1.07 points clear of fellow American team Zingas/Kolesnik in fourth.

They then went on to compete on the 2024–25 Grand Prix circuit, winning silver at the 2024 NHK Trophy and bronze at the 2024 Cup of China.