🖥 Services

I've got some availability for new clients!

We're living in amazingly interesting times. Software development is changing so fast, and who knows what the future brings. For now, the agents still need a human at the wheel. Someone who knows what to build, how to build it, and how to keep it secure.

Email Dennis

Can you use some help agent-proofing your development setup? Have a great idea that we can prototype fast? Maybe you already built a first prototype, but you’re not sure what the way forward is? Is it finally time to migrate that old legacy system? Or maybe you just need an extra pair of hands to move faster on what you’re already doing.

If you’re looking for someone with 15 years of Rails experience and a deep feel for Hotwire, who’s all in on building with AI agents, I could be a great fit. Most recently I’ve been using agents to migrate a large Ember frontend to Hotwire, pushing my Hotwire Native app to the App Store, and building out a full software factory.

Get in touch, I’m sure we can work something out! Also happy to just chat about AI agents, Rails, or Hotwire, so feel free to reach out either way!

🛠 How I can help

I love to write clean, well tested code. I have a strong Product focused background, having worked in Product related roles for years as well. That allows me to focus on delivering a good trade off between business needs, user experience and (long term) code maintainability.

I enjoying working both in existing teams or as a single developer together with non-technical people.

🤖 Building with AI agents

AI agents can make your team a lot faster, as long as someone keeps them on track. I can help you with:

  • Agent-proofing your development setup: tests, CI, conventions and guardrails that agents can work within.
  • Prototyping new ideas fast, and turning a first prototype into something you can build on.
  • Migrating legacy systems, like moving a large Ember frontend to Hotwire.
  • Setting up a software factory, where agents do the heavy lifting and humans steer.
  • Keeping agent-written code secure and maintainable.

📱 Hotwire Native

Let me help you get your own app into the app store fast, using Hotwire Native. This leverages the power of Hotwire and Rails to quickly build an future proof app with a native feel where necessary. I can help you with:

  • Assessing the Hotwire readiness of your application.
  • Determining which parts need to be native and which can stay web-based.
  • Setting up of both the iOS and Android apps.
  • Writing the 'bridge components' for the native parts.
  • Getting the app in the actual app stores.
  • Integrating Hotwire Native development in your product process.

Depending on the knowledge and size of your team I can also help with parts of the process. The goal will always be to get a fully functional Hotwire Native app into the app stores as soon as possible.

🌟 Fractional Ruby on Rails CTO

Wether your company is starting out or growing, you might need a CTO, but not full time yet. Or you're in a transition period and haven't be able to hire the right person yet. Based on your needs I can help you out with things like:

  • Scoping the roadmap for your product.
  • Technical advice on product decisions.
  • Product advice on technical decisions.
  • Helping out with hiring.
  • Setting up a modern development process.
  • High level technical architecture.
  • Security, performance and reliability.
  • Vendor and dependency selection and management.
  • Prototyping new ideas.
  • Guiding your team on modern Rails best practices.

Fractional CTO roles are usually very situational, i'm sure we can figure out a way to work with your unique needs and set up your company for success.

🏃‍♂️💨 Short term

If you're in need of getting just a specific job done I'm also available for short term projects, for example:

  • Building a specific feature or API integration.
  • Fixing performance or reliability issues.
  • Setting up Continuous Integration and Deployment pipelines.
  • Setting up a new project from scratch based on modern Rails best practices.
  • Reviewing the quality of a code base.
  • Due dilligence of applications.
  • Upgrading Ruby and Rails versions.

🚵 Long term

Occasionally I'm also available for longer term projects, where I can become an more integral part of your team. For example:

  • Helping out with a project that is behind schedule.
  • Coaching and mentoring your team on modern Rails best practices.
  • Building a new product from scratch.
  • Improving the quality of your code base.
  • Or simply helping out with the day to day development.

👍 Recommendations

I've worked with Dennis as one of Springest's lead developers and product owners for nearly 10 years... It was a sad day when he chose to follow his dreams outside of Springest. But of course we're mostly grateful and part ways as friends. I'd hire him in any product / technical / development role any time I'd get the chance again. He was always able to talk strategy at a high level with people on the business side, and at the same time lead complex development projects together with (other) developers.
Ruben Timmerman — Founder of Springest

👋 Get in touch

If you want to get in touch, please email me at dennis@paagman.dev, or directly schedule a call:

Email Dennis