Hard work Marketplace Intel at SkyHive The use of Rockset, Databricks

SkyHive is an end-to-end reskilling platform that automates abilities review, identifies long run skill wishes, and fills ability gaps via focused finding out suggestions and activity alternatives. We paintings with leaders within the area together with Accenture and Workday, and feature been identified as a groovy seller in human capital control by means of Gartner.

We’ve already constructed a Hard work Marketplace Intelligence database that retail outlets:

  • Profiles of 800 million (anonymized) staff and 40 million firms
  • 1.6 billion activity descriptions from 150 international locations
  • 3 trillion distinctive ability mixtures required for present and long run jobs

Our database ingests 16 TB of information on a daily basis from activity postings scraped by means of our internet crawlers to paid streaming information feeds. And we’ve got performed numerous advanced analytics and gadget finding out to glean insights into world activity tendencies as of late and day after today.

Due to our ahead-of-the-curve era, excellent word-of-mouth and companions like Accenture, we’re rising rapid, including 2-4 company shoppers on a daily basis.

Pushed by means of Knowledge and Analytics

Like Uber, Airbnb, Netflix, and others, we’re disrupting an business – the worldwide HR/HCM business, on this case – with data-driven services and products that come with:

  • SkyHive Talent Passport – an online provider teaching staff at the activity abilities they wish to construct their careers, and assets on the best way to get them.
  • SkyHive Endeavor – a paid dashboard (underneath) for executives and HR to research and drill into information on a) their workers’ aggregated activity abilities, b) what abilities firms wish to prevail someday; and c) the abilities gaps.

SkyHive Enterprise dashboard

SkyHive Endeavor dashboard
  • Platform-as-a-Provider by way of APIs – a paid provider permitting companies to faucet into deeper insights, corresponding to comparisons with competition, and recruiting suggestions to fill abilities gaps.

SkyHive platform

SkyHive platform

Demanding situations with MongoDB for Analytical Queries

16 TB of uncooked textual content information from our internet crawlers and different information feeds is dumped day-to-day into our S3 information lake. That information used to be processed after which loaded into our analytics and serving database, MongoDB.


MongoDB question efficiency used to be too sluggish to toughen advanced analytics involving information throughout jobs, resumes, lessons and other geographics, particularly when question patterns weren’t explained forward of time. This made multidimensional queries and joins sluggish and expensive, making it not possible to give you the interactive efficiency our customers required.

For instance, I had one huge pharmaceutical buyer ask if it will be conceivable to search out all the information scientists on the planet with a scientific trials background and three+ years of pharmaceutical enjoy. It might had been a surprisingly pricey operation, however in fact the client used to be on the lookout for quick effects.

When the client requested if lets extend the hunt to non-English talking international locations, I had to provide an explanation for it used to be past the product’s present functions, as we had issues normalizing information throughout other languages with MongoDB.

There have been additionally barriers on payload sizes in MongoDB, in addition to different ordinary hardcoded quirks. As an example, lets now not question Nice Britain as a rustic.

All in all, we had important demanding situations with question latency and getting our information into MongoDB, and we knew we had to transfer to one thing else.

Actual-Time Knowledge Stack with Databricks and Rockset

We wanted a garage layer in a position to large-scale ML processing for terabytes of recent information according to day. We when compared Snowflake and Databricks, opting for the latter as a result of Databrick’s compatibility with extra tooling choices and toughen for open information codecs. The use of Databricks, we’ve got deployed (underneath) a lakehouse structure, storing and processing our information via 3 revolutionary Delta Lake phases. Crawled and different uncooked information lands in our Bronze layer and due to this fact is going via Spark ETL and ML pipelines that refine and enrich the information for the Silver layer. We then create coarse-grained aggregations throughout more than one dimensions, corresponding to geographical location, activity serve as, and time, which are saved within the Gold layer.


We now have SLAs on question latency within the low loads of milliseconds, at the same time as customers make advanced, multi-faceted queries. Spark used to be now not constructed for that – such queries are handled as information jobs that will take tens of seconds. We wanted a real-time analytics engine, person who creates an uber-index of our information with a view to ship multidimensional analytics in a heartbeat.

We selected Rockset to be our new user-facing serving database. Rockset frequently synchronizes with the Gold layer information and straight away builds an index of that information. Taking the coarse-grained aggregations within the Gold layer, Rockset queries and joins throughout more than one dimensions and plays the finer-grained aggregations required to serve consumer queries. That permits us to serve: 1) pre-defined Question Lambdas sending common information feeds to shoppers; 2) advert hoc free-text searches corresponding to “What are all the far off jobs in the US?”

Sub-2d Analytics and Quicker Iterations

After a number of months of building and trying out, we switched our Hard work Marketplace Intelligence database from MongoDB to Rockset and Databricks. With Databricks, we’ve got stepped forward our talent to care for large datasets in addition to successfully run our ML fashions and different non-time-sensitive processing. In the meantime, Rockset permits us to toughen advanced queries on large-scale information and go back solutions to customers in milliseconds with little compute price.

As an example, our shoppers can seek for the highest 20 abilities in any nation on the planet and get effects again in close to genuine time. We will additionally toughen a miles upper quantity of shopper queries, as Rockset on my own can care for thousands and thousands of queries an afternoon, without reference to question complexity, the collection of concurrent queries, or unexpected scale-ups in different places within the device (corresponding to from bursty incoming information feeds).

We are actually simply hitting all of our buyer SLAs, together with our sub-300 millisecond question time promises. We will give you the real-time solutions that our shoppers want and our competition can’t fit. And with Rockset’s SQL-to-REST API toughen, presenting question effects to packages is straightforward.

Rockset additionally accelerates building time, boosting each our inner operations and exterior gross sales. In the past, it took us 3 to 9 months to construct an explanation of idea for patrons. With Rockset options corresponding to its SQL-to-REST-using-Question Lambdas, we will be able to now deploy dashboards custom designed to the potential buyer hours after a gross sales demo.

We name this “product day 0.” We don’t need to promote to our possibilities anymore, we simply ask them to head and take a look at us out. They’ll uncover they are able to engage with our information with out a noticeable prolong. Rockset’s low ops, serverless cloud supply additionally makes it simple for our builders to deploy new services and products to new customers and buyer possibilities.


We’re making plans to additional streamline our information structure (above) whilst increasing our use of Rockset into a few different spaces:

  • geospatial queries, in order that customers can seek by means of zooming out and in of a map;
  • serving information to our ML fashions.

The ones tasks would most probably happen over the following 12 months. With Databricks and Rockset, we’ve got already remodeled and constructed out a fantastic stack. However there may be nonetheless a lot more room to develop.

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