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Software Engineer @ Freeletics || Technologies, finance, sports, writing. https://dkhmelenko.com

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Person working hard in bed
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Making the Internet a safe and friendly place to be

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Boost your engineering efficiency

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person working at a laptop
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And why they matter for product growth and scalability

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And why it is crucial for your data

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Computer parts
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The Idea


Track the action history, find when things got broken, and more

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Looking through glasses
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Master the idea behind writing compact code with functions

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Pair programming
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You have to look beyond programming

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People walking down a hill
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Discover how high-load systems manage data

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Security deposit boxes
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What Is the Problem?


A learning path from junior to senior

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Hand holding up books
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