René Fürstenberg
Freiberuflicher Softwareentwickler
Experience
Jan 2021 - Dec 2023
2 years Hamburg, Germany
Freiberuflicher Softwareentwickler
Njiuko GmbH
- Git
- PostgreSQL
- REST-APIs
- RSpec
- Ruby on Rails
- Pair-programming
- Jira
- Teamwork
- Slack
- Backend
- Docker
- Kubernetes
- Hubspot-API
Jan 2021 - Dec 2022
1 year Chicago, United States
Freiberuflicher Softwareentwickler
Combinaut, Inc.
- English
- CSS
- HTML
- JavaScript
- MySQL
- RSpec
- Ruby on Rails
- Health care
- Backend
- Customer relationship management
Jan 2020 - Dec 2021
1 year Hamburg, Germany
Freiberuflicher Softwareentwickler
Analyse & Konzepte immo.analytics GmbH
- JavaScript
- PostgreSQL
- Ruby on Rails
- Fullstack
- Real estate
Jan 2020 - Dec 2021
1 year Berlin, Germany
Freiberuflicher Softwareentwickler
Cocoli GmbH
- English
- PostgreSQL
- REST-APIs
- Ruby
- Ruby on Rails
- Sass
- Stimulus.js
- Test driven development
- Furniture marketplace
- Fullstack
- Stripe-Payments API
- Stimulus JS
- Shopsystem
Jan 2020 - Dec 2021
1 year Berlin, Germany
Freiberuflicher Softwareentwickler
Match-patch
- MySQL
- REST-APIs
- Ruby on Rails
- Backend
- Stripe-Payments API
- Dating
Jan 2020 - Dec 2020
1 year Hamburg, Germany
Freiberuflicher Softwareentwickler
New Work SE (Xing)
- MySQL
- REST-APIs
- Ruby on Rails
- Backend
- Community
- AMQP
- Payments
Jan 2020 - Dec 2020
1 year Berlin, Germany
Freiberuflicher Softwareentwickler
Zalando Marketing Services
- English
- PostgreSQL
- Ruby on Rails
- Fullstack
- E-commerce
- Backend / Frontend
Jan 2019 - Dec 2020
1 year Germany
Freiberuflicher Softwareentwickler
Whitebox GmbH
- PostgreSQL
- RSpec
- Ruby
- Ruby on Rails
- Test driven development
- Unit tests
- Backend / Frontend
- Robo advisor
Jan 2018 - Dec 2020
2 years Berlin, Germany
Freiberuflicher Softwareentwickler
mobileJobs GmbH
- Git
- HAML
- JavaScript
- MySQL
- RSpec
- Ruby
- Ruby on Rails
- Sass
- Scrum
- GitHub
- Backend
- Job portal
Jan 2016 - Dec 2019
2 years Hamburg, Germany
Freiberuflicher Softwareentwickler
Xing AG
- JavaScript
- MySQL
- REST-APIs
- RSpec
- Ruby on Rails
- Teamwork
- Backend
- Fullstack
- Community
- AMQP
- Importer
Jan 2015 - Dec 2017
2 years Germany
Freiberuflicher Softwareentwickler
Sonnen GmbH
- MySQL
- REST-APIs
- Ruby on Rails
- Backend
- Renewable energy
- Salesforce
Jan 2015 - Dec 2016
1 year Berlin, Germany
Freiberuflicher Softwareentwickler
sofatutor GmbH
- Backbone.js
- Coffeescript
- JavaScript
- jQuery
- MySQL
- Ruby on Rails
- Lernplattform
Jan 2013 - Dec 2016
4 years Berlin, Germany
Freiberuflicher Softwareentwickler
Zattoo
- English
- Backbone.js
- Coffeescript
- Git
- HAML
- JavaScript
- jQuery
- Marionette.js
- MySQL
- REST-APIs
- RSpec
- Ruby
- Ruby on Rails
- Sass
- Twitter Bootstrap
- Pair-programming
- Test driven development
- Content-mangement-systems
- Unit tests
- Teamwork
- GitHub
- Fullstack
- Backend / Frontend
- Set-top-box
- Elasticsearch
- Importer
Jan 2011 - Dec 2020
8 years Berlin, Germany
Freiberuflicher Softwareentwickler
Xaa-Systems
- Git
- MongoDB
- MySQL
- NoSQL
- REST-APIs
- Ruby on Rails
- GitHub
- Content management system
- Importer
Jan 2009 - Dec 2014
5 years Berlin, Germany
Freiberuflicher Softwareentwickler
Viacom - Nickelodeon - Viva - MTV Networks
- German (native)
- English
- Backbone.js
- Coffeescript
- CouchDB
- CSS
- Facebook-APIs
- Git
- Google-APIs
- HAML
- JavaScript
- jQuery
- MongoDB
- MySQL
- NoSQL
- REST-APIs
- RSpec
- Ruby
- Ruby on Rails
- Sass
- Twitter-APIs
- Pair-programming
- Test driven development
- Jira
- Unit tests
- Teamwork
- GitHub
- Backend
- Fullstack
- Backend / Frontend
- Content management system
- Elasticsearch
- Importer
- Microsites
- Authentication-plugins microservices
- Website
Jan 2008 - Dec 2019
11 years Berlin, Germany
Freiberuflicher Softwareentwickler
Motorradfreunde.com
- Coffeescript
- Marionette.js
- REST-APIs
- Ruby on Rails
- Community
Jan 2008 - Dec 2009
2 years Berlin, Germany
Freiberuflicher Softwareentwickler
Moviepilot
- Git
- HAML
- HTML
- MySQL
- RSpec
- Ruby
- Ruby on Rails
- Sass
- Pair-programming
- Scrum
- Test driven development
- Unit tests
- Teamwork
- GitHub
- Community
Jan 2003 - Dec 2004
1 year Berlin, Germany
Freiberuflicher Softwareentwickler
KaDeWe - Feinschmecker-Etage
- CSS
- HTML
- MySQL
- Content management system
- Shopsystem
- PHP
Jan 2002 - Dec 2004
2 years Berlin, Germany
Freiberuflicher Softwareentwickler
arun - Werbung
- Website
- PHP
- Flash
Summary
I'm a freelance software developer since 2002 and work as backend, frontend or full stack developer for craftsmen, medium sized companies, startups or corporations. If you need support for your existing team, want to implement an idea or just need some advice about software development.
Languages
German
Native
English
Elementary
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