Expert Rails Developers
Who Understand Your Business
We've been part of the Ruby on Rails ecosystem since 2006 — contributing to open-source, sharing knowledge through blog posts and talks, and supporting the community. Our deep expertise, guided by best practices like Domain-Driven Design, allows us to tackle complex problems efficiently.
To deliver real value, we go beyond code. We take the time to understand your business, its challenges, and goals, ensuring our solutions drive meaningful impact.
Let's work together!Services
Tap into our skills to modernize legacy code, enable growth, and preserve stability.
Ruby on Rails Development
We save legacy Ruby on Rails applications from collapsing and improve them to support your business growth. Whether it is hard to add new functionality or application needs performance optimization, we'll get it back on the right track and support you with further steps.
Hire Us →Ruby on Rails Upgrades
Keeping your Rails app up-to-date is crucial for security and performance. We handle seamless migrations to the latest Ruby and Rails versions, ensuring minimal downtime and maximum reliability.
Learn more →Workshops & Mentoring
As experts in software development, we share our knowledge and experience through professional workshops & mentoring, helping teams better understand, design, and develop complex systems.
Event Storming Workshop → Rails + Domain Driven Design Workshop → Code Mentoring →Frontend development
We craft modern, responsive UIs that integrate seamlessly with Rails backends. Our expertise covers both React and Hotwire, allowing us to build interactive applications efficiently. We also help businesses transition from React to Hotwire, simplifying frontend architecture while maintaining a great user experience.
Hire Us →Team
We are a team of experienced developers who combine deep technical expertise with a business-driven approach.
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SINCE 2006
Andrzej Krzywda
CEO
Founder of Arkency, software architect specializing in DDD, CQRS, and event sourcing. He authors books and courses, helping companies build scalable applications.
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SINCE 2007
Marcin Domański
Fullstack Developer
Senior Fullstack Developer.
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SINCE 2008
Jakub Kosiński
VP of Context Switching
Senior Fullstack Developer. Helping businesses understand their needs & grow using web software solutions.
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SINCE 2010
Paweł Pacana
VP of Hard-to-swallow Pills
Holistic Developer, Senior Software Architect.
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SINCE 2013
Tomasz Patrzek
Fullstack Developer
Senior Fullstack Developer.
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SINCE 2014
Szymon Fiedler
VP of Memes
Strategic Problem–Solver for Complex Software Challenges. Senior Software Engineer.
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SINCE 2014
Mirosław Pragłowski
Fullstack Developer
Senior Fullstack Developer.
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SINCE 2014
Jakub Rozmiarek
Fullstack Developer
Senior Engineer, expert in high-traffic web apps, online payments, and legacy refactoring.
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SINCE 2021
Maciek Korsan
VP of AD⚡️HD
Human-browser relations 🤖 Seasoned UI Developer, conference speaker, Hotwire enthusiast.
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SINCE 2021
Piotr Romańczuk
Fullstack Developer
Senior Developer, DevOps specialist. Interested in Domain Driven Design.
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SINCE 2022
Piotr Jurewicz
Fullstack Developer
Senior Business Fullstack Engineer.
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SINCE 2022
Łukasz Reszke
VP of Sugar
Senior Software Developer, Domain-Driven Design and EventStorming passionate.
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SINCE 2022
Tomek Stolarczyk
VP of Food and Beverage
Senior Software Developer, Domain-Driven Design and EventStorming passionate.
Community
We proudly contribute to the Ruby on Rails community, sharing our expertise through blog posts, conference talks, and active open-source participation.
Arkency Blog
We've been doing this since 2012, breaking down Rails, sprinkling in DDD, and helping you conquer those day-to-day coding hurdles.
Rails Event Store
The open-source event store for Ruby & Rails.
Arkency actively maintains and develops Rails Event Store, a robust library for publishing, consuming, storing, and retrieving events. Simplify your event-driven architecture, decouple business logic, and gain full control over event flow in your application.
Learn more →Conference Talks
Big event or cozy meetup, we're always up for sharing our Rails and DDD know-how with fellow enthusiasts.
Past:
Full archive of the talks soon!-
DRUG #138 17.02.2025
Metaprogramming in Service of Legacy Code
Paweł Pacana -
online
10 Arkency lessons from Rails apps for 2025
Łukasz Reszke -
online
From React to Hotwire: an unexpected journey
Maciek Korsan