Błażej Kosmowski

Tech Expert

I help our CTOs, Development Leads, Product Owners and business executives to design and build scalable and maintainable systems. With over 13 years of experience gained on software development projects delivered to international clients, I am able to enhance the productivity of software development teams while creating data collection, processing and analysis tools.

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Blog posts that I worked on

software development

10 Tips On How To Effectively Describe And Manage Tasks For Your Dev Team

This post will help you to discover how to effectively describe and manage tasks for your dev team to lead your project to success.

Jun 10, 2022・13 min read

software development

10 Tips On How To Effectively Manage Tasks For Your Dev Team

well-described task is at least half of the story behind its successful implementation. Some other success factors are hidden in what happens to the task further down the road and especially in how the necessary feedback is provided and processed in the task implementation.

Apr 12, 2017・5 min read

ruby on rails

A Subjective Guide To Naming Stuff In Ruby on Rails: Classes

Naming things in programming may not be hard (a matter of imagination), but it is definitely hard to do it right. Also, it turns out to be very unclear what “right” means in each and every context. It doesn’t change the fact that in 8 out of 10 PRs I review, I provide a feedback related to naming, be it naming of classes, methods, fields, variables… you name it

Invalid Date・6 min read

ruby on rails

Essential RubyOnRails Patterns — Part 2: Query Objects

Query Objects (also referred to as queries) is another pattern that helps in decomposing your fat ActiveRecord models and keeping your code both slim and readable. While this article is written with Ruby On Rails in mind, it easily applies to other frameworks, especially MVC based and applying ActiveRecord pattern.

Invalid Date・5 min read

ruby on rails

Essential RubyOnRails Patterns — Part 4: Form Objects

Form Object is a very useful pattern in rails ecosystem as it can address variety of issues and antipatterns. In this article we will attempt to sort out in which situations Form Objects can prove useful and what conventions allow us to make most out of them.

Invalid Date・6 min read

ruby on rails

Essential RubyOnRails Patterns — Part 3: Clients And Wrappers

Clients and Wrappers (also referred to as “Facades”) are remarkably useful tools for working with external services, libraries or APIs. While both Clients and Wrappers are primarily used to facilitate usage of before-mentioned libraries or APIs, there are some significant differences in responsibilities each of these patterns have. In some cases a Wrapper can take over a Client’s responsibilities too

Invalid Date・6 min read