Tejus Parikh

I'm a software engineer that writes occasionally about building software, software culture, and tech adjacent hobbies. If you want to get in touch, send me an email at [my_first_name]@tejusparikh.com.

Using concurrent-ruby for a 1.5x real-world speedup

Posted by Tejus Parikh on March 08, 2026

Recently we fully onboarded a new customer that strained our our current architectural approach of doing all batch processing within an AWS Lambda by pushing up against the 15 minute hard limit. The fully managed aspect of AWS Lambda is very appealing to a company of our size so I’m loathe to switch to a different runner to bypass this limitation.

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