About

I am a Certified Scrum Master and frontend architect located in Cologne, Germany.
Agile development and Scrum influence my daily work since 2012. I have nine years of experience in developing scalable web applications using cutting edge technologies based on Micro-Service Oriented Architecture including HTML/CSS and object-oriented JavaScript (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 belief in agile methodologies, especially Scrum.

Open Source & Community Engagement

Core developer of HTML5 Boilerplate: Ongoing maintenance of HTML5 Boilerplate, a solid front-end template to start projects with, as a member of the core team.

Creation of INIT: INIT is an extension to HTML5 Boilerpalte with more structure for SCSS files and JavaScript, built upon Grunt.js, Bower and Karma helping developers to start a project more quickly.

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

Blog about Web-Technology: Researching and sharing latest technologies and learnings in a dedicated blog as well as maintaining a shared blog with friends and colleagues.

Speaking

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

• MODXpo 2015; Munich, Germany – Workflow: Frontend Tooling – "Tool with it!"
• SoCoded 2013; Hamburg, Germany – Starting Front-End Projects – Video
• Frontend Conference 2013; Zürich, Switzerland – Be Friends With You Designer And Style Guides – Updated • Video
• Beyond Tellerrand Side Stage 2013; Düsseldorf, Germany – Component Based Development
• Front-Trends 2013; Warsaw, Poland – Be Friends With You Designer And Style Guides • Video
• UX Munich 2013; Munich, Germany – Be Friends With You Designer And Style Guides • Video
• TakeOff Conference 2013; Lille, France – Writing Awesome Code – Extended Version • Video

… and more.

Writings

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

• Interview: Work inspiration with Hans Christian Reinl (Mar 5, 2015)
• CSS Naming Conventions: Less Rules, more Fun on Medium.com (Jun 19, 2014)
• A counter statement: Putting the CSS in the head on Medium.com (Feb 3, 2014)
• Interview: Web developer, JavaScript hacker and front-end nerd (Apr 21 2013)
• Shared Grunt Configuration for The Nitty Gritty
• Reducing Boilerplate Code in Front-End Projects for The Nitty Gritty
• Decoupling CSS from HTML with reusable modules for The Nitty Gritty
• [de] SCREENGUIDE – issue 15 – Neues für Webseitendrucker - Extended Version in English
• [de] SCREENGUIDE – issue 14 – Boilerplates – So starten Sie Ihre Projekte schneller und effizienter
• .net Magazine – issue 224 – .net HTML5 site of the month – Project: Haufe iDesk²
• [de] Box-Sizing – CSS3 Adventskalender on maddesigns’ blog
• [de] Apple’s Navigation mit Flexbox – CSS3 Adventskalender in maddesigns’ blog

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

Other

• 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.

Work

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

Other

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

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
  • Coding conventions and guidelines: HTML & CSS (BEM), JS (Idiomatic JS)
  • Component based development
  • Micro-Service Oriented Architecture
  • Working with and optimizing for performance budgets
  • Git: Git Flow, GitHub Flow
  • Automation: Continuous Integration, build tools, regression & end-to-end testing
• Development
  • JS: ES6, React.js, jQuery, Vanilla
  • HTML and CSS (which includes "HTML5" and "CSS3", also LESS and SASS)
  • Node.js
  • Responsive { webdesign | development | images | UX }
  • Accessibility and "SEO" (whatever that means)
• Working agile
  • Setup and development of Scrum teams
  • Coaching for teams and change management
  • Strong communication skills
  • Experience with Scrum at Scale