Jens Heyer

Jens Heyer

Frontend Developer

Personal Profile

My name is Jens Heyer, I was born in 1971 and currently I'm employed as Software Developer with a design passion, based in Düsseldorf / Erkrath.
I started to get into programming in the year 2001. The years before I started working as a Desktop Publisher, lateron as Graphic Designer in an full service advertising agency in Essen. Now I have several years of experience in developing and designing web projects.

Work Experience

Software Developer (Frontend) at TIMOCOM

Mai 2024 - Present

Currently I'm working as a Software Developer at TIMOCOM. The focus of my work is to develop a stable, safe and clean React frontend architecture for our core application system.

I'm very focussed on atomic design, clean code and frontend libraries. My daily work contains developing a design system and new React components for our inhouse developer teams.

Main Tech Stack: React, Vite, SCSS, Storybook

Senior Frontend Developer at TIMOCOM

June 2013 - April 2024

I was very focussed on mobile first and atomic design. I've had developed a design system and task manager for new web projects.

Main Tech Stack: HTML 5, CSS 3, SCSS/Less, JavaScript, jQuery, node.js, Gulp, Angular JS, React, ColdFusion, Java

Senior Frontend Developer & Lead Webdesigner Online-Media at wfp:2

January 2013 - May 2013

I was in lead for 5 months with a team of 6 webdesigner to produce teaser, online-media and newsletter for the onlineshop. In a parallel way I worked on TYPO3 templates and managed some online projects and landingpages on

Main Tech Stack: HTML 5, CSS 3, Less, JavaScript, jQuery, PHP, TYPO 3, TypoScript, JIRA

Senior Frontend Developer & Webdesigner at online agency wfp:2

December 2011 - December 2012

As a Webdesigner and Frontend Developer I worked on TYPO3 templates and managed some online projects and landingpages of

Main Tech Stack: HTML 5, CSS 3, JavaScript, jQuery, PHP, TYPO 3, Photoshop, JIRA

Screendesigner & Webdesigner at Platinnetz

September 2010 - November 2011

In 2010 I decided to get into a startup in cologne. It was a online community platform for so named "silver surfer" (target: people 50+). An investor tried to implement a e-commerce system to this platform in 2011:

Main Tech Stack: HTML 4+5, CSS 2+3, Less, JavaScript, jQuery, PHP, TYPO 3, JIRA


May 2010 - September 2011

For some months I tried to collaborate with some friends and get in touch with a bunch of partners to start some interesting projects like or

Main Tech Stack: HTML 4, CSS 2+3, JavaScript, jQuery, PHP, Photoshop, Illustrator, InDesign

Creative Director (graphics, concept creation) at Franke & Bornberg GmbH

January 2009 - May 2010

In January 2009 I'd got the opportunity to lead a small group of four designer and frontend developer. I managed projects for print and websites, microsites and online media:, and i was involved to create a new brand (logo and corporate design).

Main Tech Stack: HTML 4, CSS 2, JavaScript, PHP, Photoshop, RagTime, CorelDraw

Webdesigner & graphic designer at Franke & Bornberg GmbH

July 2006 - December 2008

A good friend of mine asked me to start as Web- and graphic designer for a prestigious rating agency in Hannover. I worked on internal tools, styled online tools and designed print and online media.

Main Tech Stack: HTML 4, CSS 2, JavaScript, DoJo, PHP, Photoshop, CorelDraw

Creative Director at 999 Werbeagentur GmbH

November 2000 - July 2006

After getting a lot of practical experience, I worked for five and a half year as creative director, managing projects, developed e.g. a file maker database to generate automated product catalogs). I was authorized to write offers and to proof invoices,

Main Tech Stack: HTML 4, CSS 2, JavaScript, PHP, Photoshop, Illustrator, InDesign, Quark XPress, FileMaker

Webdesigner & graphic designer at 999 Werbeagentur GmbH

September 1995 - October 2000

This was the start of my career. I learned desktop publishing, digital artworks, created a lot of logos, corporate identities, print magazines and much more. 999 still exists in Essen.

Main Tech Stack: Photoshop, Quark XPress, Freehand, FileMaker, HTML 4, CSS 2, JavaScript

Internship at WDR / M.S. Showtime / G.S.N TV

July 1995 - August 1995

A short trip into the strange world of TV production. Exciting but way too chaotic. Fortunatly via this internship I'd got a contact to an agency in Essen., so I decided to move to the "Ruhrpott".

Key Skills

  • HTML 5
  • CSS 3
  • SCSS/Less
  • JavaScript
  • ColdFusion
  • JAVA
  • PHP
  • Bootstrap 4/5
  • Node.js
  • Angular
  • TypeScript
  • React
  • TYPO 3
  • Adobe Photoshop
  • Adobe Illustrator
  • Adobe XD
  • Confluence (Stash, Jira)
  • Agile working methods
  • Mobile First
  • Web Performance
  • Web Accessibility


Website Relaunch 2019

TIMOCOM Corporate Website

Website Relaunch 2019 - going mobile first

Relaunch of the complete Website (27 languages), creating an own CMS based on Java (Backend), AngularJS (Frontend) and atomic design (templating)

Hackathon 2017

Trivago Hackathon 2017

In 2017 I participated at trivago's Hackathon

Website Relaunch 2016

Timotrans Corporate Website

Website Relaunch 2016

Relaunch of the complete Website (de + en)

Website - continuous content delivery Website

Website Templating 2012 / 2013 + Online Media Creation


apprenticeship & school

IHK Certified design technology assistant

1993 - 1995 | BBS 15 Köln | IHK Köln

Secondary school

1981 - 1990 | Gymnasium Alte Landesschule Korbach

Primary school

1976 - 1980 | Berliner Schule Korbach