There’s more digital data than ever to sort through these days, and that means there are lots of work for folks looking to make sense of it all.

For businesses, the promise of pulling insights to create more efficiencies and learnings led Harvard Business Review to famously declare in 2012 that data scientist is the “sexiest job of the 21st century.” But behind every elegant insight, there’s a system that pulls together data from different sources, cleans it up and gets it ready for examination.

These days, the engineers who build those systems are in high demand. The role of data engineer has been popping up on more lists of in-demand tech jobs, and technical training programs looking to prepare folks for the workforce are including the skills that will help land these roles in programming.

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