09 Dec 2025
https://evgeniipendragon.com/posts/the-quick-and-dirty-genius-of-luhn-algorithm/
After working in financial industry for a while you kind of become desensitised to lots of financial concepts or terminology. I realized it when I learned about a Luhn Algorithm or Luhn Check. This algorithm is a very basic checksum algorithm that works every time we input our credit or debit card numbers. In addition to that, it turns out that a wide variety of other businesses and industries utilize this simple check.
21 Aug 2025
https://evgeniipendragon.com/posts/converting-images-to-ascii-art-with-go-in-aws-lambda/
In an attempt to use Go in the context of AWS, I wanted to see how Go would work with AWS Lambda. I decided to create a small project where the function would take an image and convert it to an ASCII art.
Using Go for serverless functions
Using Go for serverless functions makes a lot of sense. Speed of execution keeps the costs down and delivers the results quickly. When you are getting charged by the amount of resources you consume and the time it takes to complete your function, using a techno...
18 Jul 2025
https://evgeniipendragon.com/posts/i-have-built-a-simple-blockchain-in-go-over-the-weekend/
I wanted to learn more about blockchain and how it works for a while now. Like many others, I have heard plenty about the applications of blockchain from cryptocurrency to NFT to healthcare ledgers. In this post, we will explore a simple blockchain application which will showcase one the main features of blockchain - the chaining itself. This application builds a chain of blocks that contain some simple transaction data which comprise a simple ledger application.
23 May 2025
https://evgeniipendragon.com/posts/hello-world-or-how-i-built-this-blog/
Hello, there! 👋
Creating content
I decided to start a blog to write on topics that are interesting to me or something that I would like to explore. The topics in this blog should cover tech, software development, cybersecurity, AI, business, recent news, and occasional book reviews. Hopefully the learnings that will be discovered in this blog will be useful to many more people.
Building a brand
Building a personal or a professional brand is important these days. Brand is associated with trust an...