He graduated from Waterloo East High School in 1972 and attended Upper Iowa University for one year in 1974 before working for John Deere.

[3] Amos Jr. currently serves on the Appropriations, Labor and Workforce, Local Government, and Public Safety committees.

He has served as an adjunct instructor at Hawkeye Community College since 2013, and previously worked as a machinist at John Deere for 36 years.

[1][6] In 2019, Amos Jr. was fined $20 for failing to file his campaign finance report by the deadline while serving as a Waterloo City Council member.

[7] In 2023, Amos Jr. filed for chapter 13 bankruptcy, claiming $93,700 in liabilities, mainly mortgage, an auto loan and over $11,000 in tax debt.