He went on to laud America as an "extraordinary place to do business."
It`s not the first time Obama joked about using the professional networking site LinkedIn, which Microsoft has purchased for $26.2 billion.
In February, he posted about youth programs on the social platform used to exchange career advice, contacts and job offers.
He used the occasion to discuss his first work experience as a teenager: Baskin-Robbins ice cream vendor in Honolulu.
"My first summer job wasn`t exactly glamorous, but it taught me some valuable lessons: Responsibility. Hard work. Balancing a job with friends, family and school," Obama wrote at the time.
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