SAN FRANCISCO — Google unveiled an initiative on Thursday to help train Americans for jobs in technology and committed to donating $1 billion over the next five years to nonprofits in education and professional training.

The new program, Grow With Google, will create an online destination for job seekers to get training and professional certificates and for businesses to improve their web services. The company’s goal, executives said, is to allow anyone with an internet connection to become proficient with technology and prepare for a job in areas like information technology support and app development.

Google detailed its job training program as Silicon Valley faces increasing criticism over what some say is an unchecked influence over business and society. Google is also among a number of companies facing scrutiny over the role their internet services played in Russian interference in the 2016 presidential election.

Sundar Pichai, Google’s chief executive, unveiled the initiative during a speech on Thursday in the company’s Pittsburgh office, far from the search giant’s Silicon Valley headquarters. He noted the city’s transformation from an industrial manufacturing center for steel to a hub of robotics and artificial intelligence engineering.