[5] After completing her graduate degree, she decided to pursue her career in the Thai entertainment industry so she started auditioning at various talent agencies and finally signed a contract with Idol Factory.

[8][9] In the same year, Chankimha raised a high fan following for her character Sam in Thailand's first Girls' Love series Gap,[10] which surpassed 800 million views on YouTube.

[11] Her performance gained her widespread fame internationally and multiple awards and her and her on-screen partner Rebecca Patricia Armstrong, became known as "FreenBecky".

In January 2025, Freen Sarocha was appointed as the House's first Thai female Brand Ambassador for Valentino.

According to Lefty's report released in January, 2025, Sarocha ranks tenth place among the world's most visible fashion influencers of 2024 achieving Earned Media Value of $57.3 million and has the highest interaction rate among the listed.