ALBUQUERQUE, N.M. — A former electrical engineer who worked at New Mexico’s Los Alamos National Laboratory for almost 30 years has been sentenced to 33 months in federal prison for filing false tax returns.

Prosecutors say 62-year-old Darryl Gutierrez of Santa Fe also was ordered Tuesday to pay more than $174,000 in restitution to the Internal Revenue Service.

Gutierrez was indicted in November 2015 on one count of obstructing and impeding the due administration of the internal revenue laws and 10 counts of making and subscribing false tax returns.

A jury convicted him on all 11 counts in March 2017.

Prosecutors say that between November 2010 and January 2011, Gutierrez filed 10 false federal income tax returns for tax years 2000 to 2009 seeking a refund when he owed the IRS about $125,000.