London (CNN) -- A British Airways employee was found guilty Monday of four terror-related charges, including plotting to blow up an airplane, a court in London said. Rajib Karim, 31, worked as a software engineer for British Airways in the northern English city of Newcastle. He used his position to pass on information to al Qaeda's affiliate in Yemen, including to U.S.-born radical cleric Anwar al-Awlaki, jurors in the four-week-long trial in London were told. Karim, who was arrested last year, admitted offering himself for terrorist operations, making a jihadi recruitment video and fundraising for terrorism, but denied knowing that information he gave al-Awlaki would be used for terrorism.
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Rajib Karim gave information to radical cleric Anwar al-Awlaki, a court finds
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Al-Awlaki was seeking to blow up a plane in the United States, decrypted e-mails show
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Karim admitted to other terror-related charges
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He will be sentenced March 18
A key part of the prosecution case was a series of heavily encrypted messages between al-Awlaki and Karim, in which @placeholder pressed for information about Karim's job and his knowledge of airport security.