Donald J. Trump is adding two women to his team on his presidential efforts for the general election, a shift for a campaign whose upper echelons have been dominated by men.

Kellyanne Conway, a veteran pollster and strategist with deep working ties to Mr. Trump, will come on as a senior adviser to the campaign chairman, Paul Manafort, as well as a member of the expanding polling team led by the pollster Tony Fabrizio. to join his senior campaign team.

Another addition to the higher ranks is Karen Giorno, who worked on Mr. Trump’s team in Florida during the Republican primary there. She will now be a senior political adviser.