projects

This list of projects I've done in recent years will give you some impressions of my skills and expertise. This list is also included in my Resume (PDF).

2014-

Backend systems and processes
Role: Consultant

Technology: Various

2014-

Tourism app project lead
hh-app.de
Role: Consultant

Technology: Various

2014-

Mobile App Architecture
hh-app.de
Role: Consultant

Technology: Web/Mobile

2013

Portal optimization
Role: Consultant

Technology: Web

2013

QA Management
Role: Architect

Technology: Eclipse, jMeter, Linux, Bash, Solr

2012-2013

REST endpoint for secure data transport and aggregation
Role: Architect, Senior Developer

Technology: X.509, RFC3161 Timestamping, Redis, Apache, Python, PHP

2012

Native iPhone application for secure message transport
Role: Senior Developer

Technology: Xcode, Objective C, AFNetworking, Coredata

2012

Requirements Management

2012

VoIP Convergence Consulting
Role: Analyst

2012

Mobile Transaction Interface
Role: Architect

Technology: Spring, Oracle, PHP, RoR

2012 (ongoing)

ETL Process Implementation
Role: Senior Developer

Technology: Pentaho Data Integration, MySQL, CakePHP

2012

Native iPhone application for radio streaming
Role: Senior Developer

Technology: Xcode, Objective C

2011-2012

Native iPhone Application(s)
Role: Project Lead, Senior Developer

Technology: Xcode, Objective C, Restkit, Coredata

2011

Customer portal redesign
Role: Senior Consultant

2011

Native iPhone Application(s)
Role: Senior Developer

Technology: Xcode, Objective C, Restkit, Coredata

2011

Secure File Transfer System
Role: Senior Developer

Technology: Bash, OpenSSH, X.509, RFC3161 Timestamping, SQLite, Apache, PHP

2011

Mobile Web HTML Game
Role: Senior Developer

Technology: HTML5, CSS3, jQuery, jQTouch, MySQL, CakePHP

2010-2011

iPhone Web Application(s)
Role: Senior Developer

Technology: CakePHP, MySQL, jQuery, jQTouch

2010

ETL Process Implementation
Role: Senior Developer

Technology: Pentaho Data Integration, MySQL, CakePHP

2010

Native iPhone Application
Role: Senior Developer

Technology: XCode, Objective C, PHP, MySQL, Varnish, Apache

2009-2010

iPhone Web Application
Role: Senior Developer

Technology: CakePHP, MySQL, jQuery JS Library

2009-2010

ETL Process Implementation
Role: Senior Developer

Technology: Pentaho Data Integration, Oracle

2009

Portal Development
Role: Project Lead

Technology: CakePHP, MySQL, jQuery JS Library

2008-2009

Portal Development
Role: Project Lead

Technology: J2EE Servlet, O/R Mapping Tools, Webservices, Dojo JS Library, PostgreSQL database

2007-2008

VoIP Softphone
Role: Analyst, Technology consultant

2006

VoIP System Design and Quality Management
Role: Analyst, Technology consultant

2003 – 2005

Product Management for a well-known international ISP

Projects:

Focus: Billing/Rating processes and custom backend systems, digital media platforms

2003

Business case analysis, application design and project management of a database driven sales support application.

Technology: Visual Basic, Oracle

2002-2003

Business case analysis, application design and project management of a database driven gambling agent application, e-commerce frontend.

Technology: J2EE Servlet, O/R Mapping Tools, Template Libraries, Crypto Libraries, Java Client, MySQL database

2002

Design of acceptance tests and quality management for a completely outsourced network infrastructure and IT services

2001-2002

Conceptional work and execution of a request for proposal for a complete outsourcing of network infrastructure and desktop services with $10 million annual budget

Founder and general manager e. effective web productions GmbH, Germany

1997-2001

2001

Analysis of business case, design, implementation and support of a web-based e-procurement
system for nursing homes and hospitals

Technology: WebObjects 5 on Solaris, Oracle 8i database

2000

Analysis of business case, design, implementation and support of a web-based e-learning internet shopping system

Technology: WebObjects 4.5 on Solaris, Oracle 8i database

2000

Analysis of business case, design, integration of technology/content partners, optimization of a product base search engine for the largest European ISP

Technology: WebObjects 4.5 on Solaris, Oracle 8.0 database

1999-2000

Analysis of business case, design, implementation and support of a shopping portal web application for the largest European ISP

Technology: WebObjects 4.5 on Solaris, Oracle 8.0 database

1999

Design and development of a firewall analysis tool for a major German bank

Technology: Sun C++ on Solaris

1997

IP Routing design and implementation in a firewall environment for the largest European ISP

1998

Complete intranet IP design for the largest European ISP

Self-employed

1995-1997

Consulting ISPs in design and implementation of network infrastructure
Technical customer support