An Alexandria man pleaded guilty Tuesday to committing four fraudulent schemes since 2006, including breaching National Security Agency databases and convincing his girlfriend to give him $90,000 to pay off a non-existent contract with the French government.

David Lee Parker, 50, admitted to six counts of criminal misinformation, according to the U.S. Attorney’s Office for the Eastern District of Virginia.

Parker, who could face more than 30 years in prison, is scheduled to be sentenced May 23.

Parker’s schemes were elaborate. In one instance, he misrepresented the extent of his background in national security and intelligence work to gain access to NSA computer databases. According to court documents, he used that access to make money by advancing a government contract.

He also convinced two people to invest in the European franchise rights to the Hard Times Cafe. Those investors lost more than $120,000, authorities said.

Parker’s schemes were also personal: He registered various credit cards under his grandparents’ names and daughter’s social security number to make more than $70,000 in unauthorized purchases, authorities said.

Parker was charged with one count of access device fraud, two counts of wire fraud, two counts of aggravated identity theft and one count of fraud in connection with computers, according to authorities.

Read more: The Post’s criminal justice coverage