Kevin Soltysiak

Web developer - Ruby on Rails

With several years of experience into web and mobile web development for various companies, I'm here to help you with your ruby projects from the inception phase up to last mile and beyond, with a strong emphasis on quality and maintainability.

I strive for simplicity ("things should be made as simple as possible, but not simpler") and for using the right tools to solve the right problems.

I strongly believe in communication and interactions: I will not work for you but with you; you will be involved at every step of your project.

I focus on long-term viability: I will build your project on solid foundations, with tools designed to be used and maintained many years into the future.

Ruby on Rails logo

I've been working with Ruby and Rails since 2012. Whether you need help on a brand new project or are looking for someone to take care of your aging application, I can help!

And while I'm mainly focused on the backend, I also know my way around frontend development, modern javascript, and a few of the frameworks that's out there.


Need to explore an idea before fully committing to it? Have some hypothesis that requires validation? A prototype would be a good tool to help your decision-making process.

We'll define which questions need to be answered, then come up with an adequate way to answer them and and move forward until you have all you need to make an informed decision.

Technical debt

Technology is moving fast, and it's easy to end up with an application that's outdated. This can lead to degraded performances, increased security risks, and decreased productivity for your team.

I've made a habit of handling application updates and data migration so that your team can focus on the features that your end customers interact with.


While easily overlooked, efficient tooling improves your team's ability to deliver work of quality and how often they do it. On top of that, automation can help keep your application up to date and safe.

From custom-made command-line developer tools to setting up continuous integration/ delivery, there are many ways that I can help improve your workflow.

Recent projects

I'm working with Butterware to help them maintain their application, reduce their technical debt, and integrate new features.

I had the pleasure of working with Kevin quite a few years ago and jumped at the chance for him to join the Butterware team in 2018. Kevin's work is of excellent quality; he produces really good code.

On top of that, he clearly understands the needs of our clients and takes time to improve the general quality of our workflow, taking the pain out of everyday tasks which we'd stuck with for so long we hadn't notice how shoddy they were!

— Graeme Simpson, CEO @ Butterware

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I worked with Scalingo and helped them ensuring their dashboard - made with Ember.js - was up to date and future-proof.

We've worked with Kevin to speed up the deployment of our dashboard. He dived in our existing Ember.js codebase with ease and became efficient really quickly.

He also assisted us in upgrading the successive versions of the framework. It has been really convenient working with Kevin and we strongly recommend his skills.

— Léo Unbekandt, CTO @ Scalingo

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I helped finish on time a few of their web applications - made with Ember.js and Ruby on Rails.

I hired Kevin to help us finish our products on time. Kevin was able to adapt and integrate quickly and allowed us to make progress in an agile and efficient way.

With his help, we were able to meet our deadlines and satisfy our customers, it's very nice to work with him!

— Sébastien Poudat, CTO @

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