Infosys said it doesn't comment on pending litigation.

Monster Worldwide was also named in the lawsuit. A spokesman for the jobs site said that "all the processes therein were designed and controlled by Infosys and hosted on Infosys website."

The lawsuit contends that Monster should have known that "maximum experience" requirements "constituted a de facto age limit."

According to the lawsuit, DeVito believed he had met the job requirements.

One of the job ads, provided by his attorney, sought a senior principal infrastructure consultant. Among the skills required was the ability to demonstrate expertise in at least one core infrastructure area -- systems management, operations, database management or network management.