Clemens Heimlich

Softwareentwicklung

Schliemannstrasse 6
10437 Berlin

Tel: +49 176 2408 1290
E-Mail:

Profil pdf

Professional focus

Agile software development all around the web

Frontend:
Web application development in ES6. Ember, Mirage, QUnit
State of the art ui development, in-house production of ui frameworks in html/css/js
Webrtc, websocket, push services
Progressive webapps (PWAs)
Electron applications

Backend:
Ruby on Rails, rspec, cucumber, capybara, selenium
Elixir, Phoenix (upcoming)

API:
Design, Blueprint, Mock Server and implementation of APIs
RESTful json, GraphQL, custom

DevOps / Linux Administration:
ci/cd with gitlab, kubernetes, aws, docker, nginx, ember-cli deployment

IT Beratungsdienstleistungen unter Anerkennung der Normen und Standards der BSI IT-Grundschutz-Methodik

Toolset

jira, git - github/gitlab, slack
ember, QUnit, JSLint, ember-cli-deploy, electron
apiary.io
elixir, phoenix, rails, rspec
docker, vagrant
aws, google compute engine
linux, nginx, *sql
vim, kde neon
adyen, mangopay

Projects and lectures

2018 / 2019
digiprax Practice management software for alternative practitioners
Programming in ES6, ember.
Development of the API design.
UI templating in haml, handlebars, material design.

2014 - 2019
seatris Guest booking and restaurant management Development of the reservation and booking app version 2.
Programming in ES6, ember.
CI / CD via ember-cli-deploy and gitlab to s3 / cloudfront.
Development of the API design, mock server and blueprint via apiary.io.
PWA with service worker and offline skills.
Precompressed assets with brotli and zopfli.
Development of the guest booking and restaurant management app version 1 in Ruby on Rails.

2018
vimantic video advertising - ember frontend development.
anke-jacob.de Photographer - development in php / laravel, nginx caching, brotli precompression.

2017
fauna-reisen Nature travel organizer Transformation of legacy code into responsive design.
Development and implementation of a strategy for converting the extensive outdated code into mobile-friendly html / css to avoid reprogramming.
Programmatic cleanup of inline CSS in templates and cms generated database entries. CODE University proof of concept js / ui solution

2013 - 2017
gigflip Crowdfunding and ticketing for concerts and live events Development of the redesigned version 2 of the application.
Head of the frontend development team.
Provision of the heterogeneous development team with Vagrant Images to enable cross-platform software development.
Programming in ruby / rails, haml, js, css. Development of version 1 of the application in ruby / rails, haml, js, css.

2002 - 2016
Artdepartment Studiobabelsberg Development of a content management system.
Programming the website.
php, mysql, html, css, javascript

2008 - 2011
Sixbreak Online community knowledge game. Real time web / http server push concept and implementation of the multi-user game mode.
Opensocial Gadget for studivz.
Ruby on Rails, Comet / long polling, rspec, git.

2008 - 2011
eye square GmbH Market research in the area of user & brand research Development of the video eye tracking software Youtubetracker.
RegExp, html, css, JavaScript.

2009
feedbox - HTTP server push Development of a bidirectional messaging system based on HTTP / 1.0 as the basis for web browser-based real-time messaging and gaming.

2009
Lecture at the German Rails Conference in Offenbach "feedbox - http-server-push in the rails ecosystem"
http://www.rails-konferenz.de/programm/51/heimlich-woeginger-feedbox
Slides feedbox-serverpush-implementation (pdf)

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2009 - 2015
molitor-berlin.de
Programmierung des Webauftritts,
Organisation von Dateiserver und Datensicherung im Office.
Drupal / php, Linux

2007 / 8
palabea.net - Sprachen Community
Entwicklung eines Browser gestützten Audio / Video / Text – Chats,
Integration von Webservices, Frontendoptimierung.
Ruby on Rails, Test::Rails, Juggernaut, xmpp, Prototype JavaScript

2007 / 9
dailyme.tv - Startup im Bereich mobiles Video
Frontendprogrammierung
html, css, js / Prototype JavaScript, Ruby on Rails Backend

2005
ASDIS Solutions GmbH, Berlin, ACM
Programmierung der Web-Benutzeroberfläche einer Software Konfigurations- und Management Zentrale
html, css, javascript, Java Backend

1999 - 2002
Studentischer Mitarbeiter beim Deutschen Institut für Urbanistik (Difu) in der Internetabteilung Programmierung in php, js, html, css. Entwicklung einer Suchmachine über Klappentexte in der mysql-Datenbank

1999
Online Speisenkarte für das CCC-Sommercamp in Krummensee / Altlandsberg