Projects:
Technologies: Ruby on Rails, MySQL, Unity, AJAX, GIT, JSON, CSS, Nginx, Passenger, JIRA
Technologies: Ruby on Rails, HAML, SASS, PostgreSQL, HTML, Javascript, GeoRuby, Solr
Technologies: Python, Template Toolkit, PostgreSQL, HTML, CSS
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
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