Projects

Technology solutions and implementations across various industries

Project Portfolio

This list of projects I've done over the years will give you some impressions of my skills and expertise.

settings

2014-

Backend systems and processes

Role: Interim Management

  • Project management/architecture
  • Interim management of mid sized team
  • Business intelligence
  • Finance-/Billing-/ERP systems
  • Enterprise application integration with Apache Camel
  • Stream data processing with Kafka / KSQL / Kafka Streams / Timescale DB
  • Identity and access management (Keycloak and others)

Technology: Various

architecture

2014-

RFP Process Management in line with EU regulations

Role: Consultant

  • Stakeholder interviews and workshops
  • Functional and non-functional requirements
  • Technical specifications and constraints
  • Identify potential suppliers and vendors
  • Research supplier financial stability and references
  • Define supplier pre-qualification criteria
  • Create technical specifications and requirements
  • Establish evaluation methodology and scoring criteria
  • Define response format and submission requirements
  • Conduct supplier briefing sessions and Q&A
  • Conduct technical compliance assessment
  • Execute functional and technical scoring
  • Conduct reference checks and due diligence

Technology: Web, Mobile

phone_iphone

2012

Native iPhone application for secure 2FA message transport

Role: Senior Developer

  • Data retrieval from backend and display
  • Offline Storage and Data Entry
  • Data Signing and Encryption
  • Push notification integration

Technology: Xcode, Objective C, AFNetworking, Coredata

flight

2020-

Tourism app architecture / project lead

Role: Consultant

  • Project management
  • Decision on implementation strategy
  • Quality assurance
  • Alignment with overall business processes

Technology: Various

assignment

2012

Requirements Management

Role: Analyst

  • Requirements definition for extensions to a recently introduced CRM system
  • Data migration strategy
  • Monitoring

Technology: CRM Systems, Data Migration

track_changes

2014-2022

Tourism app project lead

Role: Consultant

  • Project management
  • Decision on implementation strategy
  • Quality assurance
  • User tracking strategy

Technology: Various

architecture

2014-2022

Mobile App Architecture

Role: Consultant

  • Requirements analysis/streamlining
  • Technology selection
  • Decision on implementation strategy

Technology: Web/Mobile

phone

2012

VoIP Convergence Consulting

Role: Analyst

  • Vendor selection and screening
  • M&A scenario analysis
  • Development of proposal for going forward

Technology: VoIP, M&A Analysis

swap_horiz

2012

Mobile Transaction Interface

Role: Architect

  • Mediation interface for MNO functionality
  • Integration of MNO transaction interfaces
  • Secure operation of standardized interfaces

Technology: Spring, Oracle, PHP, RoR

speed

2013

Portal optimization

Role: Consultant

  • Identify potential for optimization (Customer facing, SEO)
  • Propose steps for improvement
  • Coordinate implementation

Technology: Web

transform

2012

ETL Process Implementation

Role: Senior Developer

  • Extension of existing solutions

Technology: Pentaho Data Integration, MySQL, CakePHP

verified

2013

QA Management

Role: Architect

  • Definition of quality metrics
  • Establishment of automatic end-to-end test procedure
  • Continuous integration system integration

Technology: Eclipse, jMeter, Linux, Bash, Solr

radio

2012

Native iPhone application for radio streaming

Role: Senior Developer

  • Live radio streaming
  • Facebook integration
  • Playlist integration

Technology: Xcode, Objective C

security

2012-2013

REST endpoint for secure data transport and aggregation

Role: Architect, Senior Developer

  • High performance data processing
  • Automated caching and serialization strategy
  • Data conversion
  • Reporting
  • Digital Signature and Encryption

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

phone_iphone

2011-2012

Native iPhone Application(s)

Role: Project Lead, Senior Developer

  • Data retrieval from backend and display
  • Offline Storage and Data Entry
  • Server synchronisation
  • Push notification integration

Technology: Xcode, Objective C, Restkit, Coredata

web

2011

Customer portal redesign

Role: Senior Consultant

  • Portal analysis
  • Analysis of current usage KPIs
  • Development and presentation of change proposal

Technology: Portal Analysis, KPI Analysis

security

2011

Secure File Transfer System

Role: Senior Developer

  • Custom mechanism for automatic secure file transport between systems
  • Receipt generation and processing
  • Digital Signature and Encryption

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

games

2011

Mobile Web HTML Game

Role: Senior Developer

  • Simple game supporting marketing campaign(s)
  • Desktop browser fallback for reuse in “standard” web page

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

phone_iphone

2010-2011

iPhone Web Application(s)

Role: Senior Developer

  • Analysis/Decision on frameworks
  • Reuse of common components to support recurring marketing campaigns

Technology: CakePHP, MySQL, jQuery, jQTouch

web

2009

Portal Development

Role: Project Lead

  • Customer facing order entry system
  • Streamlined process for ordering products
  • Transport order entry data to backend processes
  • Scrum inspired development process

Technology: CakePHP, MySQL, jQuery JS Library

business

2008-2009

Portal Development

Role: Project Lead

  • Industry web portal targeting
  • Knowledge sharing
  • Personal relationships
  • Learning content

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

business_center

2003-2005

Product Management for international ISP

Role: Product Manager

  • Premium services rating and billing engines (subscriptions and events)
  • Integration of micropayment systems
  • Digital music shopping and distribution system
  • Redesign of customer self service portal (billing related)
  • Access billing updates and optimization
  • Billing and rating infrastructure optimization and rollout

Technology: Billing/Rating Systems, Digital Media Platforms

business

1997-2001

Founder and General Manager - effective web productions GmbH

Role: Founder, General Manager

  • Financial Management
  • Head of Software Development
  • Management of 10 person staff
  • Recruitment and training of web development, application server programming and database development
Key Projects:

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

1998 Complete intranet IP design for the largest European ISP

1997 IP Routing design and implementation in a firewall environment for the largest European ISP

Technology: WebObjects, Oracle, Solaris, Sun C++