Recommended expert

Ralf Koch

School Project

Ralf Koch
Nierstein, Germany

Experience

Nov 2024 - Aug 2025
10 months

School Project

HZD

  • Modernization, migration, and further development of a school software for installation and management. VB6 to C#.
  • C#, WPF, VS Studio 2022, VB6, Proxmox, Open Project
Jan 2024 - Sep 2024
9 months

Part-time

Construction sector

  • Support and further development of in-house software using WinForms.
  • Reports are implemented in DevExpress.
  • C#, WinForms, DevExpress, Reports, VS Studio 2022, GAEB data
Jun 2023 - Dec 2023
7 months

Insurance sector

  • Support and further development of in-house software based on the DevExpress XAF framework.
  • WPF, Blazor, DevExpress Reports.
  • C#, WPF, DevExpress XAF, Reports, VS Studio 2019, SQL Server
May 2022 - Dec 2022
8 months

Energy sector

  • Support and restructuring of existing software with DevExpress and MS Access.
  • Migration from Crystal Reports to DevExpress Reports.
  • VB.Net, DevExpress, Visual Studio 2019, SQL Server 2016, Crystal Reports, .NET 4.7.2+, SourceSafe
Apr 2022 - Dec 2023
1 year 9 months

Part-time

Construction sector

  • Support and further development of in-house software using WinForms.
  • Reports are implemented in DevExpress.
  • C#, WinForms, DevExpress, Reports, VS Studio 2022, GAEB data
Jan 2019 - Mar 2022
3 years 3 months

HZD Wiesbaden

  • Support of existing software, new concepts and further developments.
  • Improvements to the WPF interface.
  • C#, WPF, WCF, DevExpress, Visual Studio 2017, SQL Server 2016, .NET 4.5.2, TFS
Oct 2015 - Dec 2017
2 years 3 months

Helaba

  • Further development of existing software.
  • C#, VB.NET, Infragistics, Visual Studio 2013/2015, .NET 4.5.2, ASP.NET, jQuery, AngularJS, WPF, SQL Server
Aug 2014 - Jun 2015
11 months

Deutsche Bundesbank

  • Further development of an existing web-based software.
  • C#, VB.NET, Infragistics, Visual Studio 2010/2012/2013, .NET 4.5.2, ASP.NET, jQuery, AngularJS
Oct 2012 - Mar 2022
9 years 6 months

ZDF Mainz

  • Support of existing software, new concepts and further developments.
  • C#, VB.NET, DevExpress, Reports, Visual Studio 2013–2019, Oracle 11g2/12c2, .NET 3.5–4.7.2, Git, TFS
Jun 2012 - Dec 2012
7 months

Manz Coating GmbH, Karlstein

  • Assisted in developing new control visualization software based on the VisiWinNET framework.
  • C#, .NET 3.5, VisiWinNET 6.4, Visual Studio 2010, WinForms, Git
Oct 2011 - Mar 2012
6 months

DHL IT-Services, Darmstadt

  • Developed a new handheld software for field service using the HASCI Framework.
  • C#, .NET 3.5, Windows Mobile 6.5.1, MS SQL Server CE 3.5, TFS
Sep 2009 - Jun 2011
1 year 10 months

T-Systems, Magdeburg/München

  • Supported the Web UI team with programming, testing, and optimizing the web UI for a provisioning system.
  • Reports with MS SQL Server.
  • Developed a configuration software using WPF based on the MVVM pattern
Jun 2008 - Mar 2009
10 months

T-Systems, Magdeburg/München

  • Project group leader and development support for the business side and the development team in Magdeburg and Munich
Jun 2007 - Dec 2007
7 months

IPM Payphone Systems GmbH, Frankfurt

  • Created software to manage and display product catalogs on information terminals
Mar 2007 - May 2008
1 year 3 months

HZD, Wiesbaden

  • Further development and support of the development team for several web applications in C# for the Hessian Ministry of Education.
  • Structural synchronization of multiple databases and data reconciliation
Mar 2000 - Nov 2006
6 years 9 months

ES Consultants, Inc., Atlanta

  • Development support for a warehouse distribution system in Orlando, Florida using Visual Studio .NET, C#, MSMQ, SQL Server 2000/2005, RSLogix 5000
  • Project management for a warehouse distribution system in Virginia using Visual Studio .NET, MSMQ 3.0, SQL Server 2000, RSLogix 500
  • Design and development of a warehouse scheduler for dyeing and other processes for YKK in Alabama using Visual Studio .NET, AS/400 Database, XML
  • Bill of materials management program for an auto audio company in Georgia using Visual Studio .NET, MS Access, XML
  • Development and design of storage and warehouse management software for the US Marines using Visual Basic 5 & 6, MS Access/Oracle, Crystal Reports 5 & 6

Tecan, Mainz-Kastel

  • Development of control software.
  • C#, WPF, Visual Studio 2010, .NET 4.0

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (14.5 years), Media and Entertainment (9.5 years), Transportation (7 years), Banking and Finance (3 years), Construction (2.5 years), and Education (1 year).

Information Technology
Media and Entertainment
Transportation
Banking and Finance
Construction
Education

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (24 years), Project Management (7.5 years), Supply Chain Management (6.5 years), Product Development (4.5 years), Quality Assurance (2 years), and Logistics (0.5 years).

Information Technology
Project Management
Supply Chain Management
Product Development
Quality Assurance
Logistics

Summary

I am a passionate developer and see myself as the link between the client and their project. My goal is a fast and satisfying implementation of requirements. Unless otherwise stated, the projects were done full-time.

Skills

  • Microsoft .Net Technologies & Frameworks:
  • Visual Studio .Net 2010 - 2022 [C#, Vb, Asp.net]
  • Windows Presentation Foundation [Wpf]
  • Windows Communication Foundation [Wcf]
  • Winforms Design And Programming
  • Devexpress [Preferred], Resharper, Telerik, Infragistics
  • Source Code Management:
  • Git, Team Foundation Server
  • Operating Systems And Server Technologies:
  • All Windows Systems, Apple Mac Os X
  • Databases:
  • Ms Sql*server 2005 - 2016, Sqlexpress, Oracle 11g2, 12c2, Sqlite
  • Reports:
  • Crystal Reports, Devexpress Reports, Ms Sql Reports
  • Other Skills:
  • Swift, Swiftui, Ipad, Mac Os, Tvos, Visionos Development
  • Own App Store Apps:
  • Hands Of Wing Tsun [Ios, Macos, Tvos, Visionos]: An App To Learn The Basics Of Wing Tsun.
  • Counter Tally Meister [Ios]: Count Important Events Or Activities
  • Simply Track Time [Ios, Macos]: Record Working Hours In Projects, Etc.

Languages

German
Native
English
Advanced

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Ralf based?

Ralf is based in Nierstein, Germany.

What languages does Ralf speak?

Ralf speaks the following languages: German (Native), English (Advanced).

How many years of experience does Ralf have?

Ralf has at least 24 years of experience. During this time, Ralf has worked in at least 2 different roles and for 14 different companies. The average length of individual experience is 2 years and 6 months. Note that Ralf may not have shared all experience and actually has more experience.

What roles would Ralf be best suited for?

Based on recent experience, Ralf would be well-suited for roles such as: School Project, Part-time.

What is Ralf's latest experience?

Ralf's most recent position is School Project at HZD.

What companies has Ralf worked for in recent years?

In recent years, Ralf has worked for HZD, Construction sector, Insurance sector, Energy sector, and HZD Wiesbaden.

Which industries is Ralf most experienced in?

Ralf is most experienced in industries like Information Technology (IT), Media, Entertainment and Publishing, and Transportation and Logistics. Ralf also has some experience in Banking and Finance, Construction, and Government and Public Administration.

Which business areas is Ralf most experienced in?

Ralf is most experienced in business areas like Information Technology (IT), Project Management, and Supply Chain Management. Ralf also has some experience in Product Development, Quality Assurance (QA), and Logistics.

Which industries has Ralf worked in recently?

Ralf has recently worked in industries like Media, Entertainment and Publishing, Information Technology (IT), and Construction.

Which business areas has Ralf worked in recently?

Ralf has recently worked in business areas like Information Technology (IT) and Product Development.

What is the availability of Ralf?

Ralf is immediately available for suitable projects.

What is the rate of Ralf?

Ralf's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Ralf?

To hire Ralf, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
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Market avg: 810-970 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.