Jun 8, 2021This is why you shouldn’t use floats in financial systemJust imagine if you are using a calculator and trying to add two numbers 0.3 and 0.4, but the result is 0.6999999. I suppose you’ll throw such a calculator. In the world of computer software you could easily receive such results using float numbers. I’ll explain to you why it…Development3 min readDevelopment3 min read
Published inGeek Culture·Jun 6, 2021Don’t forget to check your MicroserviceOver the past few years, I’ve been doing some deep-diving into the world of microservices. As a product developer, I’ve implemented a huge number of microservices. And everytime I need to be sure that I didn’t forget anything, so I’ve created a checklist for myself. And out of my list…Programming4 min readProgramming4 min read
Published inThe Startup·Jan 11, 2021Create Your Own AR Application on AndroidIn this article I’ll give you understanding how to write Android application with effects on the face from camera in realtime. We will go through all the key points here: working with camera, finding face, finding points on the face and drawing result. Working with camera The first thing we need to do…Android App Development4 min readAndroid App Development4 min read
Dec 22, 2020Android Gallery scrolling behind the scene!I’m absolutely sure you have ever scrolled photos on the screen. Sometimes it worked pretty well and fast, sometimes… required patience. Well, did you think of the implementation? How does it work? In the nutshell, it’s a very complicated process! It requires heavy converting tasks in the background and putting…Android4 min readAndroid4 min read
Dec 7, 2020Why NoSQL?Today NoSQL databases are one of the most interesting topics. Sometimes people think that those databases are the best solution ever and could fix all their problems. When you need consistency or data isn’t very huge then you need a relational database. But when you need scalability, distributing and availability…NoSQL3 min readNoSQL3 min read
Nov 30, 20205 reasons to use gRPCCommunication between services is one of the critical parts of the system. A lot of factors depend on the decision: complexity of implementation, latency, throughput, etc. I’m going to tell you about technology that covers these aspects — it’s easy to implement and it gives you fast connection! Greetings, enters…Software Development3 min readSoftware Development3 min read
Nov 23, 2020What should you know about the Load Balancer?Today you can’t imagine any software without a lot of interactions. Whether it’s external calls, like browser’s requests to servers. Or internal communications between components in the system. That’s why routing traffic is becoming a very essential part of it. And thus you can’t create any new modern software system…Programming3 min readProgramming3 min read
Nov 16, 2020Optimize your databaseNowadays, relational databases are one of the most popular solutions for storing data. If you have a small storage and simple model — you’re probably starting with RDBMS while you design the system. But while your system is growing, you’re storing more and more data. In the end you can…Database5 min readDatabase5 min read
Nov 9, 2020Coffee sessions with the teamNowadays, it’s not possible to create a product by only one person. The time of one hero is already gone. It’s more productive when there’s a team on a specific product. And the most important thing here is communication within the team. The team should always understand short term and…Agile3 min readAgile3 min read
Nov 2, 2020Why should you use microservices?If you are a backend software developer, I’m pretty sure you heard the word microservice. You probably also heard the word monolith, which is used in contrast. So, when should you use microservices? I’m going to provide several reasons for it. First, let’s make a definition of the microservice. Microservices…Software Development3 min readSoftware Development3 min read
