The cuts will affect about 6% of the company's workforce across the globe, including the UK.
In a message, chief executive Ryan Roslansky said these were the only layoffs the firm was planning.
The announcement comes as sectors from retailing to airlines slash jobs around the world.
Microsoft-owned LinkedIn has offices in more than 30 cities around the world and employs 16,000 people.
The firm, which is based in California, is used by employers to find suitable candidates for jobs and by employees to search for new jobs.
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