Kotlin

Junior (<3 years)

USA

$ 85,000

$ 52,000

$ 33,000

(-39%)

Mid (3-6 years)

USA

$ 102,500

$ 73,000

$ 29,500

(-29%)

Senior (+6 years)

USA

$ 126,000

$ 86,700

$ 39,300

(-31%)

Sources: Indeed, glassdoor and salary.com