Dmitry Tsepelev

Experienced Ruby and Ruby on Rails developer since 2012, specializing in feature development, legacy code refactoring, and performance optimization for both large-scale and small-scale applications. Throughout the past decade, I've encountered numerous performance challenges, with the database often being the underlying cause. Leveraging my deep understanding of relational databases, I excel at maximizing their efficiency. I prefer working with PostgreSQL, but have some experience with other SQL and NoSQL databases like Elasticsearch, Solr, Redis, MongoDB and MySQL. When it comes to building APIs, I am particularly fond of GraphQL for its flexibility and power. Additionally, I have some experience with product analytics, enabling me to configure analytics systems within applications and design comprehensive event frameworks to gather critical data for various metrics. I'm a big fan of code standartization, which helps me to find and extract common patterns, making my apps simplier, more reliable and maintainable. As a passionate advocate for knowledge sharing, I actively contribute to the tech community. You can find me speaking at conferences or crafting detailed blog posts (don't miss the featured section!). I am also an avid contributor to open-source projects, which you can explore on my personal site at https://dmitrytsepelev.dev and my GitHub profile at https://github.com/DmitryTsepelev.