Reinder de Vries

Reinder de Vries

Senior Software Developer


Hi, I'm Reinder. Since 2009 I've built a few dozen apps for iOS, Android and the web.

As a software developer I build tools and experiences for desktop, smartphone and tablet devices. I'm a senior-level coder with an eye for detail and a generalist-specialist approach. In my work, I value clear communication and concise code.

My skills and competencies focus on full stack, i.e. front-end and back-end development for major platforms. Integrating UI/UX is important to me; I want to build apps that look good and work well. Almost every project I've done asked for innovative solutions to challeging problems. I'm as much a problem solver as I am a developer.


Web & back-end development PHP, HTML/CSS, JavaScript, Angular, MySQL, PostgreSQL, Parse Server, Firebase, Heroku
iOS & Android Swift, SwiftUI, Objective-C, Cocoa Touch, Xcode & Java, Android SDK, Android Studio
DevOps/SysOps Webserver configuration and management, Ansible, LEMP/LAMP stack, assorted command line fu
Digital Marketing Copywriting, Search Engine Optimization (SEO), Conversion Rate Optimization (CRO), content marketing, lean business validation
Misc. Scrum/Kanban, Git, REST/SOAP, UX design, Sketch, Balsamiq Mockups, Photoshop

Past Work

Past Work



Front-End Development

Nothing makes me happier than an app that works well. When it comes to app development, I'll make sure the code runs smooth, is elegantly written and documented properly.


Back-End Development

Almost every app needs a back-end these days. I can advise on what works best – Firebase, Parse Server, or a custom REST API – and integrate the app's front-end and back-end.



UI/UX means building an app that delights users, while making sure an app solves the right problem in the first place. I make mockups and a functional/technical design, so we know exactly how the app works before building it.


Digital Marketing

From 2013 to 2021, I built, grew and ultimately sold my online business. Starting from scratch meant I had to get to grips with sales, business development, SEO/CRO, content marketing, building landing pages – or go bust!

What People Say

Willem Mastenbroek

Reinder listens very carefully to your needs and then goes to work completely independently. He ultimately provides a top product! Techies with a communication skill are rare. When you have the chance to hire him, do so right away!

Wietse Wind

In addition to knowledge and skills in iOS development Reinder brings in great communication skills: when Reinder works on a project, he can communicate independently with customers. Reinder communicates punctual and complete, and provides stakeholders in a project with the right information, and takes informed decisions.

Cees Smits
Streaming Buzz

Reinder is a very capable, flexible and creative App builder. We work together for many years and also our customers are satisfied. The technical knowledge of Reinder is always up to date and helps us attracting new clients or helps existing clients to next steps. It is a pleasure working with Reinder.

Jorgo Smaal
MobXS / Oh My App

Reinder is a broadminded perfectionist with outstanding app and platform development skills. Works result driven towards maximal customer satisfaction; possesses top-notch communication and problem-solving competences. With his eye for detail and concise code, he turned out to be a defining asset to our project. I highly recommend working with him. You won't regret it :)

Marianne Johnsen

I met Reinder de Vries at the Technoport conference. Reinder has a way of communicating that introduces "Need to knows" in a relaxed and elegant manner. He tells you what to do, how and why in a way that is easy to understand and inspiring. His knowledge covers not only the coding itself, but just as much the strategy before and after. For a start-up like PeopleUknow there is only one more thing to say: I wish he was on my team and I am hoping that some day he will.

Bobby Ham

It was excellent to work with Reinder. He listened very well to the ideas I had and gave sharp advice in choices for technology and the design of a new app and adjacent database. The choices for making the MVP turned out cost efficient at a high quality level and within planning.