[1] She is best known for her roles such as Rikka Takanashi in Love, Chunibyo & Other Delusions, Irina Shido in High School DxD, Hiyori Iki in Noragami, and Catarina Claes in My Next Life as a Villainess: All Routes Lead to Doom!.
She debuted as a singer in 2014 under Pony Canyon with the song "Soushou Innocence".
With her rising success, she also participated in many music festivals and held one-man lives in large venues such as Yoyogi National Gymnasium[3] two days with 13,291 capacity and Nippon Budokan[4] with 14,471 capacity.
As an actress, she debuted in Unofficial Sentai Akibaranger with the role of Hakase Hiroyo.
[5] In the autumn of her third year in high school, she decided to become a voice actress.
[5] Afterwards, she went on the internet and read magazines to decide on which university for voice acting she was going to enter and later on decided to join the Japan Narration Acting Institute (日本ナレーション演技研究所 Nihon Narēshon Engi Kenkyūjo).
Upon graduation, she made her debut as a voice actress in the OVA Boku, Otari-man as an office employee.
In the same year, she debuted as an actress in Unofficial Sentai Akibaranger with the role of Hakase Hiroyo.
In 2014, Uchida debuted as a singer with the single Soushou Innocence, under the label Pony Canyon.
On December 24, 2017; she announced the opening of her official fan club "LIFE IS LIKE A SUNNY DAY" at Maaya Happy Birthday & Xmas Party!!
On February 7, 2020, she appeared in the live action movie Wotakoi: Love Is Hard for Otaku with the role of herself.
[14] In the same year, she made a guest appearance in a detective drama for the first time in the sixth episode of Keishichou Sousa Ichikachou 2020 with the role Rika Oita.
She performed a collab with Kouki Maeda and Cocomi for the Aladdin theme song A Whole New World.
[17] Uchida released her first photobook (フォトブック) Maaya Doki (まあやドキ) on February 8, 2023.
[21] To commemorate the release, Uchida was in charge of the cover and opening gravure of Weekly Young Jump No.
[22] Uchida made her solo debut in April 2014 under Pony Canyon with her first solo single, "Soushou Innocence" (創傷イノセンス); it peaked at 14th place on the Oricon Weekly Singles Chart and stayed on the chart for 9 weeks.
The album heavily features her hobbies; like Crossfire, a song like a festival song with baseball-like lyrics, Moratorium Dance Floor, which has a Japanese taste and Shiny drive, Moony dive, which is themed on driving.
[40][non-primary source needed] She released her 9th single, "Kodou Escalation" (鼓動エスカレーション) on July 10, 2019.
[45] Her 11th and double A-side single titled "Heartbeat City/Itsuka Kumo ga Haretanara" (ハートビートシティ／いつか雲が晴れたなら) was released on November 25, 2020.
The titular song from the single was used as the opening theme for the television drama of the same name.