Patrick Bartels - Softwareentwickler

Hamburg, Germany

Experience

Nov 2017 - Present

7 years 6 months

Cologne, Germany

Co-Founder, Lead Developer

heysite GmbH

Jun 2014 - Feb 2017

2 years 9 months

Hamburg, Germany

CTO

Qwanji GmbH

Sep 2011 - May 2014

2 years 9 months

Munich, Germany

CTO

Tunity UG

Project Leader Development
Responsible for concept and development of the Unity project, the database, API and website, and audio streaming software
Team Lead: Development (4 developers)

Projects:

Development of a 3D environment for browsers in Unity with audio streaming
Conception and development of a database with an API for the Unity project (interface) and website
Development of an audio streaming server

Technologies: Ruby on Rails, MySQL, Unity, AJAX, GIT, JSON, CSS, Nginx, Passenger, JIRA

Feb 2011 - May 2011

4 months

Hamburg, Germany

Ruby on Rails Developer

lb-lab

Further development and maintenance of the location-based event search engine loxicon.de
Development of the location-based coupon search engine loxi-deals.de

Technologies: Ruby on Rails, HAML, SASS, PostgreSQL, HTML, Javascript, GeoRuby, Solr

Nov 2009 - Jun 2010

8 months

Hamburg, Germany

Web Developer (Python, Template Toolkit)

RealNetworks

Further development and maintenance of the RealPlayer website and web-based functionality for the RealPlayer

Technologies: Python, Template Toolkit, PostgreSQL, HTML, CSS

Jul 2009 - Sep 2009

3 months

Ramallah

Web Developer (Ruby on Rails, PHP), Server, Network and Database Administrator

Jaffa.Net Computer Systems

Jul 2008 - Sep 2008

3 months

Nkozi, Uganda

IT Specialist, Web Developer (Ruby on Rails)

Edirisa

Aug 2005 - Present

19 years 9 months

Hamburg, Germany

Senior Software Developer (Ruby on Rails)

roughneck media

Freelance work and consultancies

Projects (Extract):

Backend Developer for ucm.agency (04/2022 to current)
Core Activity: Backend developer for ucm jobs
Technologies: Ruby on Rails
Backend Developer for odacer finanzsoftware GmbH (10/2021 to 03/2022)
Core Activity: Backend developer for papierkram.de
Technologies: Ruby on Rails
Backend Developer for Getsafe Digital GmbH (09/2020 to 03/2021)
Core Activity: Backend developer for Get Safe, API development for UK aggregators
Technologies: Ruby on Rails
Backend Developer for innogy SE (10/2019 to 04/2020)
Core Activity: Backend developer for bit.B
Technologies: Ruby on Rails
Software Architect, Lead Developer for Mintano UG (04/2019 to 04/2020)
Core Activity: Lead development of web application and API for iOS app
Technologies: Ruby on Rails, AWS
Backend Developer for enervolution GmbH (02/2018 to 07/2018, 10/2019 to 01/2020)
Core Activity: Implementing several MVPs for Innogy
Technologies: Ruby on Rails
Digitalization of all workflows for custom tailoring for R. Paulsen GmbH, Original Veddel (12/2017 to present)
Core Activity: Digitalization of all workflows from order taking embroidering to shipment
Technologies: Ruby on Rails
Marketing website Spruchmaschine for 1. FC Köln (06/2016 to 08/2017)
Core Activity: Backend implementation
Technologies: Ruby on Rails, Sidekiq, Redis, Sendgrid
Event Sourcing based Social Network Human Trust for Wacku UG (09/2016 to 04/2017)
Core Activity: Backend implementation
Technologies: Ruby, Event Sourcing, Redis, Elasticsearch, Docker
Smart mini-websites with sharing-superpowers for heysite.io (10/2015 to present)
Core Activity: Conception to finalization of pingdeck.com
Technologies: Ruby on Rails, SASS, PostgreSQL, HTML, Javascript
Tailor-made Web Shop for Köln-Düsseldorfer Deutsche Rheinschiffahrt AG (07/2015 to 10/2019)
Core Activity: Implementation of a custom made shop for selling boat trip tickets
Technologies: Ruby on Rails, SASS, MySQL, HTML, Javascript
360° Electric Sales Portal for BMW (05/2013 to 04/2015)
Core Activity: Implementation of an electric sales portal for all BMW car dealers around the world selling BMW i cars
Technologies: Ruby on Rails, SASS, MySQL, HTML, Javascript
Web-based Urban Refugee Database for International Rescue Committee South Sudan (01/2013)
Core Activity: Conception to finalization of a database for managing household surveys of urban refugees in Juba including, M&E, reporting, analyzing and import/export functionality to UNCHR ProGres servers
Technologies: Ruby on Rails, HAML, SASS, MySQL, HTML, Javascript
Web-based Database for Information Management for Karen Human Rights Group (01/2012 to 05/2012 and 09/2012 to 11/2012)
Core Activity: Conception to finalization of a database with M&E, media support, geo-data, various metadata, user management, workload-management, statistics etc.
Technologies: Ruby on Rails, HAML, SASS, MySQL, HTML, Javascript