WASHINGTON — A former chief executive of construction firm KBR Inc. pleaded guilty Wednesday to federal bribery and kickback charges in connection with the company’s work in Nigeria from 1995 to 2004.

The Justice Department said Albert “Jack” Stanley entered a guilty plea in federal court in Houston to conspiring in a decade-long scheme to bribe Nigerian government officials in return for engineering and construction contracts. Under his plea agreement, Stanley, 65, faces a sentence of seven years and payment of $10.8 million in restitution.