A spokesperson for the Chancellor said: "As Rachel said on Good Morning Britain a couple of weeks ago when she was asked, she worked as an economist at the Bank of England between 2000 and 2006, including over a year at the British Embassy in Washington working in the economics section, and then she worked at HBOS from 2006 to 2009.
Asked whether Ms Reeves could be trusted on Thursday, the PM's official spokesman said: "Yes, the Chancellor is working with the whole of Cabinet deliver the Plan for Change.
Ms Reeves has updated her job history on professional networking site LinkedIn to reflect she worked at Halifax Bank of Scotland (HBOS) for longer than she had previously said.
Asked whether it would be right to say Sir Keir does not have any concerns about Ms Reeves' conduct, he said: "Correct.".
"Figures out this morning showed growth numbers coming in higher than expected... we're still not satisfied with this level of growth, and that's why we're determined to go further and faster in delivering the economic growth and improvement to living standards that the country needs.".