A search on the Castle Garden website http://www.castlegarden.org suggests that Job sailed to the United Sates in 1880. Here is the entry:
First name Last name Occupation Age Sex Arrived Ship Origin (Port) Origin (Ctry) Origin (Prov) Origin (Town)
JOB CARPENTER COLLIER 26 M 18 Aug 1880 SCYTHIA LIVERPOOL & QUEENSTOWN GREAT BRITAIN ENGLAND

The 1881 Census tells us that his wife Caroline and 3 children were in the Workhouse at Westbury on Severn:

Caroline CARPENTER Other M Female 28 Forest of Dean Domestic Servant
Mary Jane CARPENTER Other Female 4 Forest of Dean
Edwin John CARPENTER Other Male 2 Westbury on Severn
Rose Matilda CARPENTER Other Female 3 m Westbry on Severn

Source Information:
Institution "Workhouse" Westbury On Severn
Census Place Westbury On Severn, Gloucester, England
Family History Library Film 1341609
Public Records Office Reference RG11
Piece / Folio 2525 / 153
Page Number 6

And it would appear that Caroline married again in 1887:
Marriages Dec 1887
BYETT William Westbury S. 6a 466
Carpenter Caroline Westbury S 6a 466

Hopefully someone can help in finding Job after 1880.

Good luck
Mike