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The distribution of Hadoop and MapReduce skills, according to LinkedIn

August 10th, 2012 | | Data management

Back in December we published an assessment on the distribution of Hadoop skills, based on LinkedIn search results.

Thanks to a temporary lull in GB’s Olympic medal-winning exploits I ran the search again the other day. The results are pretty interesting for a number of reasons.

First the headline stats:

  • There are over 22,000 people with Hadoop in their LinkedIn profiles, up from just over 9,000 in December 2011, an increase of over 144% in eight months.
  • Hadoop skills are becoming more evenly distributed: 60.4% of LinkedIn members with Hadoop in the profiles are based in the US, compared to 64.5% in December 2011.
  • Growth areas include India (11.9% from 9.7%), China (4.4% from 3.6%, and the UK (3.4% from 3.0%).
  • However, the Bay Area remains the best place to find Hadoop enthusiasts, with 24.9% (albeit down from 28.2% eight months ago)

This time I also ran a similar search for MapReduce skills. The headline results:

  • MapReduce is mentioned in 6,424 LinkedIn profiles.
  • MapReduce skills are more evenly distributed: 61.9% of LinkedIn members with MapReduce in their profiles are based in the US, 38.1% in the rest of the world.
  • That said, over a quarter (25.9%) of LinkedIn members with MapReduce in their profiles are based in the Bay area.
  • Other geographic hotspots are India (8.7%), Seattle area (5.8%), and NYC area (4.8%).

This time I also looked at which vendors are listed as the current employers of LinkedIn members citing Hadoop and MapReduce. One really surprising result stood out:

  • Microsoft is the second largest employer of both Hadoop and MapReduce skills, according to LinkedIn member profiles
  • Redmond employs 1.7% of all LinkedIn members with Hadoop in their profiles, and 3.0% of members with MapReduce in their profiles
  • Yahoo is the largest employer of Hadoop skills (2.9%), with other ‘non-vendors’ also well represented: Google (1.3%), eBay (also 1.3%), Amazon (1.2%), LinkedIn (1.1%).
  • Google is by far the largest employer of MapReduce skills, as you might expect, with 7.1%. Also well represented are Yahoo (2.7%), Amazon (1.8%) and LinkedIn (1.4%).


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