In August 2016, Kobayashi joined Eredivisie side SC Heerenveen from Júbilo Iwata in the J1 League.
In December 2022, Kobayashi returned to Japan and signed to J1 club, Hokkaido Consadole Sapporo from 2023 season.
[3] On 1 February 2025, Kobayashi was announce official transfer to JFL relegated club, Iwate Grulla Morioka for 2025 season.
[4] Kobayashi made his first appearance for the Japan national football team in a friendly 1–2 loss to Bosnia and Herzegovina.
[5] [6] This biographical article related to a Japanese association football midfielder born in the 1990s is a stub.