A picture of Hans Christian Reinl

Hans Christian Reinl

Software Architect and Certified Scrum Master

50825 Cologne, Germany
[email protected]
My blogTwitterGitHub


I am a Software Architect and Certified Scrum Master located in Cologne, Germany. Agile development and Scrum influence my daily work since 2012. I have more than ten years of experience in developing scalable web-applications using cutting edge technologies including modern JavaScript and TypeScript (frontend and backend).

I love architecting systems in a high-performance environment with a focus on frontend development. My passion in JavaScript and CSS is as strong as my believe in agile methodologies, especially Scrum.

Open Source & Community Engagement

Co-host of Working Draft: Strong influence on the German-speaking community while being a member of the weekly web-development and web-news podcast ​Working Draft​ since 2011.

Former Core Developer of HTML5 Boilerplate: Ongoing maintenance of ​HTML5 Boilerplate​, a solid frontend template to start projects with.

Co-Organizer of the web development and design focused ​NightlyBuild​ Conference in Cologne.


I am very happy to be invited to any conference in our scene and beyond.

… and more.


I wrote some articles on the interwebz and offline. Here is a list. Hopefully more to come.

Please send me a mail if you want me to write for you.


  • Nomination as Young Developer Of The Year / .net-Awards 2013.
  • Certified Scrum Master
  • Co-Organizer of NightlyBuild.io - a Web-developer conference in Cologne.
  • Former Co-Organizer of DevsMeetup in Freiburg, Germany - a monthly Developer Usergroup.


In the past I worked on projects for clients such as Vaillant Group Business Services, Deutsche Gesellschaft für Unfallchirurgie, publisher Haufe-Lexware, AppMeister, Gruner + Jahr and others.

Freelance Frontend Developer and Architect

April 2013 – present

  • Consulting for middle and large-scale web projects in the frontend section
  • Analyses and improvement of new and existing software architectures
  • Workshops for agencies to coach their developers and designers
  • Working on client projects using, configuring and developing frontend for FirstSpirit, TYPO3 CMS, Magento and Hybris
  • Scrum Master and project manager


April 2010 – April 2013: Lead Frontend developer at /gebrüderheitz, Freiburg
November 2011 – April 2014: Software developer and Co-Founder at colored.by

© Stefan Nitzsche

Core Skills

As a Frontend developer I worked on a lot of things over the years. Here are some skills I consider myself good at.

  • Architecture
    • Component based development
    • Micro-Service Oriented Architecture
    • Implementing Coding conventions and guidelines within teams
    • Building Pattern Libraries for better collaboration across teams
    • Automation: Continuous Integration, build tools, regression & end-to-end testing
  • Development
    • JavaScript: TypeScript, React.js, Redux
    • Node.js: Deep knowledge of the platform, Express, TypeORM, Sequelize
    • Using TypeScript on the client- and server-side
    • Working with Apache Kafka
    • Experience in Responsive ( web design | development | images | UX )
    • Accessibility and "SEO"
  • Working agile
    • Setup and development of Scrum teams, experience with Scrum at Scale
    • Coaching for teams and change management
    • Strong communication skills