Stefan Wimmer-Architect/Software Developer/Infrastructure
Check rate
Experience
Architect/Software Developer
Global Logistics Support GmbH
Tasks
- Further development of a new ERP system with Blazor
- Creation of e-invoices in XRechnung and ZUGFeRD format
- UI/UX design Client-Server System
- Windows 11 Technologies
- Microsoft .NET 9, Git, Azure DevOps, ASP.NET, MSSQL, Blazor Programming Languages
- C#, MVVM Development Tools
- Microsoft Visual Studio .NET 2022 Database
- MSSQL Industry
- Other
Architect/Software Developer/Infrastructure
HDI
- Migration of database servers and application servers to the new environment (infrastructure, WPF applications, ASP.NET applications, Excel)
- Replacing migrated applications with new ones through redevelopment
- Creation of CI/CD pipelines
- System: Windows 11, Windows Server 2022
- Technologies: Microsoft .NET 4.8, ASP.NET, WPF, Oracle, MSSQL, SSRS, Azure, Azure Blob Storage
- Languages: C#, MVVM, VBA
- Tools: Microsoft Visual Studio .NET 2022, Azure Storage Explorer
- Database: Oracle, MSSQL
- Industry: Insurance
Architect/Software Developer
G+D
- Further development of Project Zeus
- Bug fixing
- Implementation of new features
- Data modeling
- Refactoring legacy code
- System: Windows 10, Windows 11
- Technologies: Microsoft .NET 4.8, WPF, Oracle, Git, Scrum, Docker, Kubernetes
- Languages: C, C++, C#, XML, XSLT, XSD, Unity, MVVM, Design patterns, PL/SQL
- Tools: Microsoft Visual Studio .NET 2022, Git, Jira, Docker, Oracle SQL Developer, Oracle SQL Developer Data Modeler
- Database: Oracle, SQLite
- Industry: Industry
Software Developer
Own Development
- Setup PV system in Solaranzeige
- Creation of charts using Grafana
- System: Raspberry Pi, Linux
- Technologies: Docker, WAGO control
- Languages: C#, C++, Grafana
- Database: Maria DB
Architect/Software Developer
Zeppelin Rental GmbH
- Creation of databases with PostgreSQL
- Creation of services based on OpenAPI
- Creation of a GUI with Angular 12, accessing services from the GUI
- Creation of integration tests for the services
- Creation of tests for Angular components
- Creation of controls
- Creation of reports with Stimulsoft
- Responsive design
- Data modeling
- System: Windows 10
- Technologies: Microsoft .NET 6, Stimulsoft, Scrum, RabbitMQ
- Languages: C#, Design patterns, TypeScript, Angular 12, Swagger, JavaScript
- Tools: Microsoft Visual Studio .NET 2019, Swagger, Git, pgAdmin
- Database: PostgreSQL 12
- Industry: Industry
Software Developer
Allianz Wien
- Supported multilingualism (German, English)
- System: Windows 10, Linux
- Technologies: Microsoft .NET 4.6, WinForms
- Languages: C#, C, C++
- Tools: Microsoft Visual Studio .NET 2019 Enterprise, Excel, Git, Oracle SQL Developer, Oracle SQL Developer Data Modeler
- Database: PostgreSQL, Oracle
- Industry: Insurance
Software Developer
Roche Diagnostics GmbH
- Developed the GUI for a prescription software using WPF
- Developed a web application using ASP.NET MVC
- Displayed and edited business process model diagrams via BPMN IO
- Refactoring
- System: Windows 10
- Technologies: Microsoft .NET 4.6, design patterns, Prism, Unity, WPF, ASP.NET MVC, .NET Core, gRPC, Microsoft Entity Framework, NHibernate, Azure
- Languages: C#, XML, Unity, Prism, design patterns, JavaScript, TypeScript, Node.js, Java
- Tools: Microsoft Visual Studio .NET 2019 Enterprise, DevExpress
- Database: Microsoft SQL Server 2019
- Industry: Pharma
Software Developer
Münchner Rückversicherungs AG
- Developed and maintained an Excel plugin with VSTO
- Data modeling
- Data comparison
- System: Windows 10
- Technologies: Microsoft .NET 4.6, design patterns
- Languages: C#, VSTO, design patterns
- Tools: Microsoft Visual Studio .NET 2017 Enterprise, Excel, Oracle SQL Devloper, Oracle SQL Developer Data Modeler
- Database: Oracle
- Industry: Insurance
Software Developer
AKDB
- Developed forms using ASP.NET MVC
- Migrated COBOL code to C#
- System: Windows 10
- Technologies: Microsoft .NET 4.5, ASP.NET 4.5, ASP.NET MVC, RESTful services, Microsoft Entity Framework 6.1, NuGet, NPM, WCF, design patterns
- Languages: C#, XML, XSD, Autofac, design patterns, jQuery, JavaScript, COBOL
- Tools: Microsoft Visual Studio .NET 2015 Ultimate
- Database: Microsoft SQL Server 2019
- Industry: Government agency
Software Developer
Unicredit AG
- Developed forms using AngularJS
- Developed components with AngularJS 2
- Used NHibernate and Entity Framework as OR mappers
- Developed RESTful services
- Many years of experience with the USP framework
- Accessed Oracle databases
- System: Windows 7
- Technologies: Microsoft .NET 4.5, ASP.NET 4.5, ASP.NET MVC, RESTful services, Microsoft Entity Framework 6.1, NHibernate, NuGet, NPM
- Languages: C++, C#, XML, XSD, Spring.NET, design patterns, jQuery, NVelocity, AngularJS, AngularJS 2, JavaScript, TypeScript, PL/SQL
- Tools: Microsoft Visual Studio .NET 2015 Ultimate
- Database: Microsoft SQL Server 2008 R2, Oracle
- Industry: Banking
Developer
Hausbank eG
- Creation of documentation for an existing system (installation guide, specifications)
- Creation of test cases
- System: Windows Server 2008 R2
- Technologies: Microsoft WinForms, Crystal Reports
- Languages: C#, PL/SQL
- Tools: Microsoft Visual Studio .NET 2008
- Database: Oracle 11g
- Industry: Banking
Consultant
Qunis GmbH
- Embedding the ASP.NET ReportViewer control into a webpage
- Creation of reports
- System: Windows Server 2012, SharePoint 2013
- Technologies: Microsoft ASP.NET 4.0, SSRS 2012
- Languages: C#
- Tools: Microsoft Visual Studio .NET 2010
- Database: Microsoft SQL Server 2012
- Industry: Business Intelligence
Architect/Software Developer
Asset Media Ltd.
- Development of a web application for assessing the quality of websites
- Use of SSRS 2008 R2 to create evaluations
- System: Windows Server 2008 R2
- Technologies: Microsoft ASP.NET 4.0, SSRS 2008 R2, Microsoft ASP.NET MVC 4.0
- Languages: C#, Design Patterns
- Tools: Microsoft Visual Studio .NET 2012 Premium
- Database: Microsoft SQL Server 2008 R2
- Industry: Web design
Software Developer
ZERO-Lacke
- Creation of a cube for an ERP system (Microsoft Dynamics AX) to analyze sales
- Creation of reports for the cube
- System: Windows 7, Windows Server 2008 R2
- Technologies: Microsoft Analysis Services (SSAS), Microsoft Reporting Services (SSRS)
- Languages: MDX, T-SQL
- Tools: SQL Server Business Intelligence Development Studio 2008
- Database: Microsoft SQL Server 2008
- Industry: Manufacturing
Architect/Software Developer
EDAG GmbH & Co. KGaA.
- Creation of a .NET architecture for an existing Excel application
- Implementation of the architecture with C#
- Use of design patterns
- Creation of a database model
- Use of Microsoft Entity Framework
- System: Windows 7, Windows Server 2008 R2
- Technologies: Microsoft .NET 4.0, WPF, MVVM
- Languages: VB.NET, C#, XML, XSLT, XSD, Spring .NET, Unity, AOP, Design Patterns, PL/SQL
- Tools: Microsoft Visual Studio Ultimate .NET 2010
- Database: Oracle 11g
- Industry: Manufacturing
Software Developer, Architect
Bavarian State Office for Monument Preservation
- Development of web services
- Access to the database via the ADO .NET Entity Framework
- System: Windows 7, Windows Server 2003, Windows Server 2008 R2
- Technologies: Microsoft .NET 3.5, IIS
- Languages: C#, T-SQL, WCF
- Tools: Microsoft Visual Studio .NET 2008
- Database: Microsoft SQL Server 2005
- Industry: Government
Software Developer, Architect
TECOPS GmbH
- Development of a vacation planner as a web application (personnel management, holiday management, reporting, leave requests)
- System: Windows 7, Windows Server 2003, Windows Server 2008 R2
- Technologies: Microsoft .NET 3.5
- Languages: C#, ASP.NET 3.5, T-SQL, AJAX, Active Directory
- Tools: Microsoft Visual Studio .NET 2008, AJAX Control Toolkit
- Database: Microsoft SQL Server 2005
- Industry: IT personnel services
Architect/Software Developer
Knorr Bremse Germany
- Creating requirements using Enterprise Architect
- Creating an abstract XML description language
- Developing a framework for managing abstract elements
- Using WPF for displaying objects
- Creating reports for Microsoft Project 2010
- Applying design patterns (MVVM, Singleton, Factory, Adapter)
- Creating high-level and detailed concepts
- Using UML features of Visual Studio 2022
- Migrating legacy data, creating SSIS packages
- Refactoring old code
- System: Windows 10
- Technologies: Microsoft .NET 4.5, WPF, Microsoft Project 2010, SSRS, SSIS, .NET MAUI
- Languages: C++, C#, XML, XSLT, XSD, Spring .NET, Unity, AOP, MVVM, design patterns, Java
- Tools: Microsoft Visual Studio .NET 2019/2022, Microsoft Office 2003, Altova XML Spy 2013, Enterprise Architect, Actipro Software Syntax Editor, Microsoft Business Intelligence Studio 2008, Infragistics, Git, Jira, SQL Developer, Oracle SQL Developer Data Modeler
- Database: Microsoft SQL Server 2008 R2, Microsoft SQL Server 2012/2014/2019, Oracle, MySQL
- Industry: Manufacturing
Architect/Software Developer
R+V Insurance Wiesbaden
- Updating an existing .NET 3.5 application
- Separating GUI and business logic
- System: Windows Vista
- Technologies: Microsoft .NET 3.5, WinForms
- Languages: C#, ADO.NET, LINQ
- Tools: Microsoft Visual Studio .NET 2008, Microsoft Office 2007, SQL*Plus, DevExpress
- Database: Microsoft SQL Server 2005, Oracle 10g
- Industry: Insurance
Architect/Software Developer
BSH Bosch Siemens Home Appliances GmbH
- Excel templates are offered for download via an ASP.NET application (depending on permissions)
- After editing the Excel files, they are re-uploaded via the same application and the OLAP cube is recalculated
- Exporting and importing Excel files using OOXML
- Generating ASP.NET pages using XSLT templates
- System: Windows XP
- Technologies: Microsoft .NET 4.5
- Languages: C#, ADO.NET, XML, OLAP, MDX, SSIS, ASP.NET, XSLT, XPath, OOXML 2.0, SSIS, SSRS
- Tools: Microsoft Visual Studio .NET 2008, Microsoft Office 2010, SSMS
- Database: Microsoft SQL Server 2005/2008/2012/2014, Analysis Services
- Industry: Manufacturing
Software Developer, Architect
Axa
- Created an application for complete customer advice.
- Built a data model with the ADO.NET Entity Framework
- Used WPF for the GUI
- Designed XAML files with Expression Blend
- Created automatic builds with MS Build
- Created a setup program with Visual Studio 2008
- System: Windows XP, Windows Vista, Windows 7
- Technologies: Microsoft .NET 3.5, Silverlight 3
- Languages: C#, ADO.NET Entity Framework, XML, XSD
- Tools: Microsoft Visual Studio .NET 2008, Infragistics, WPF Toolkit, Expression Blend 3, Team Foundation Server 2008
- Database: Microsoft SQL Server Compact Edition 3.5, Microsoft SQL Server 2008
- Industry: Insurance
Software Developer, Architect
TÜV Süd
- Created an application with .NET Compact Framework 3.5 for generating reports for cars and trucks
- Synchronized the mobile application with the server
- System: Windows XP, Windows Mobile 6.1
- Technologies: Microsoft .NET 3.5
- Languages: C#, ADO.NET, XML, XSD
- Tools: Microsoft Visual Studio .NET 2008, Resco, Smart Device Framework
- Database: Microsoft SQL Server Compact Edition 3.5
- Industry: Manufacturing
Architect/Software Developer
BSH Bosch Siemens Hausgeräte GmbH
- Converted an existing Excel solution into a .NET 3.5 solution
- Analyzed existing data in Excel and created a data model
- Stored all relevant data in a SQL Server 2005 database
- Built a data warehouse to allow OLAP access to the data
- Set up dimensions, measures, and measure groups with Visual Studio 2008
- Created a WinForms application for data entry and display of calculated fields
- System: Windows XP
- Technologies: Microsoft .NET 3.5
- Languages: C#, ADO.NET, XML, XSD, OLAP, MDX, SSIS
- Tools: Microsoft Visual Studio .NET 2008, Microsoft Office 2003, SSMS 2005
- Database: Microsoft SQL Server 2005, Analysis Services 2005
- Industry: Manufacturing
Software Developer
MTU Aero Engines
- Developed configuration software for engine controllers with .NET 3.5 following DO-178B
- Displayed analog and digital signals from the engine controller in plots and gauges
- Implemented tests
- System: Windows XP
- Technologies: Microsoft .NET 3.5
- Languages: C#, ADO.NET, XML, XSD
- Tools: Microsoft Visual Studio .NET 2008, Dimensions, Infragistics, IOComp Plotpack, Liquid XML Studio 2008, Microsoft Word 2003
- Industry: Manufacturing
Software Developer
MobileX AG
- Further developed a mobile application with DevExpress components using the MVC pattern.
- System: Windows XP
- Technologies: Microsoft .NET 2.0
- Languages: C#, ADO.NET
- Tools: Microsoft Visual Studio .NET 2005, Subversion, TortoiseSVN, Devexpress
- Database: SQLite
- Industry: Manufacturing
Software Developer
ThyssenKrupp Precision Forge
- Creation of a framework for shop-floor data collection (BDE)
- Reporting with Crystal Reports and Visual Studio 2005.
- System: Windows XP
- Technologies: Microsoft .NET 2.0
- Languages: VB.NET, ADO.NET, PL-SQL, Crystal Reports
- Tools: Microsoft Visual Studio .NET 2005
- Database: Oracle 9
- Industry: Manufacturing
Software Developer
Paccar Ltd.
- Extension of the MKF framework (Modular Component Framework) used to develop large ASP.NET applications (>3000 PCs)
- Development of client- and server-side modules for the application.
- The application sometimes handled very large tables (>100 million rows)
- Creation and optimization of stored procedures (T-SQL).
- Creation of web tests and database tests using VSTS 2008.
- System: Windows 2000/XP, Windows Server 2000/2003
- Technologies: Microsoft ASP.NET 2.0, AJAX
- Languages: C#, JavaScript, T-SQL, XML
- Tools: Microsoft Visual Studio .NET 2005, TFS 2008, VSTS 2008
- Database: SQL Server 2000/2005
- Industry: Manufacturing
Software Developer
TECOPS GmbH
- Management of candidate profiles with ASP.NET 2.0 as frontend and MS SQL Server 2005 as back-end. Core tasks included database modeling and creating stored procedures
- Creation of reports with MS SQL Server 2005 Report Services and integration into an ASP page.
- Creation of data-driven ASP pages and optimization for large data volumes. Applied full-text search to find profiles.
- System: Windows XP, Windows Server 2003
- Technologies: Microsoft .NET 2.0
- Languages: C#, VB.NET, ASP.NET 2.0, T-SQL, SQL Server 2005 Report Services and Notification Services
- Tools: Microsoft Visual Studio .NET 2005
- Database: Microsoft SQL Server 2005
- Industry: IT staffing service provider
Architect/Software Developer
In-house Development
- Creation of a homepage with ASP.NET 2.0 and MS SQL Server 2000 as database for DEX registration and DEX feedback.
- DEX-Dynamic Explorer: developed a tool for easy access to file paths for desktop and web.
- Technologies: Microsoft ASP.NET 2.0, .NET 2.0, MFC
- Languages: C#, XML, UML, web services, C++, STL, shell scripting
- Tools: Visual Studio 2005, Photo Impact 11 (graphics), Platform SDK
- Database: SQL Server 2000
Architect/Software Developer
In-house Development
- Development of an invoicing program for veterinarians using Microsoft Access 2010
- Development of a client version with Microsoft Access XP/2007/2010
- Use of SQL Server 2000 as database
- Creation of a variant with the .NET Compact Framework 2.0 for mobile devices (Pocket PCs) and use of MS SQL Server Compact as database. Performance tuning for a large number of clients and items.
- Creation of diaries on the Pocket PC
- Entry of customers, patients, treatments, and medications on the PDA
- Printing of receipts on a thermal transfer printer via Pocket PC
- Development of test concepts for quality assurance
- Creation of e-invoices from the program (X-Factura, ZUGFeRD)
- System: Windows 2000/XP/Vista/10/11, Linux, Red Hat Enterprise
- Technologies: Microsoft .NET 1.1/2.0 WinForms, .NET 8.0, Microsoft Compact Framework 2.0, Microsoft Office, .NET MAUI, Docker, Xcode
- Languages: C#, VBA, XML, UML, XAML
- Tools: Microsoft Access 97/2003/2007/2010/2021, SSIS, SSRS
- Database: Access XP/2007, SQL Server 2000/2005/2008/2012/2019, SQL Server Compact Edition 3.1, Snapshot Replication
- Industry: Veterinary
Software Developer
Compear AG
- Created an application with Java for setting up insurance rates
- Developed a Pocket PC app using MFC
- Languages: Java, Java Swing
- Tools: Visual Studio 6.0
- Industry: Insurance
Software Developer
Ambulante Pflegedienste
- Created an application for home care services using Microsoft Access
Architect/Software Developer
Münchner Rückversicherungs AG
- Atom-Designer: Developed a tool with Visual C++ for interactive graphical modeling of mathematical models. Models and components can be analyzed in table or graphical views. Implemented interfaces to Excel and XML.
- Created pivot tables with Excel 2003 to analyze accounting data in Microsoft Access.
- Anjapro: Built the interface for a claims reserve tool (MFC/C++, later .NET 2.0/Oracle/Web services). Modeled the database and provided business objects for web services. Used a role-based access system.
- IBNR-Platform: Defined use cases and implemented the product over several iterations. Connected to the business data warehouse and interfaces to FSRI. Implemented Excel export/import via ADO.NET. Ensured quality in TestDirector/Quality Center.
- Automated Excel 2003, Word 2003, and PowerPoint 2003 in various small projects.
- RAC Review-Tool Plus: Developed an audit tool for underwriters to assess policies/claims. Created a summary tool for table and graphical reports. Data exchange via compressed XML files.
- RAC Analyser: Built a tool to generate data analyses and reports for any data. Used Access 2003 and Oracle 9 for analysis.
- Atom-Script: Developed a tool in Visual C++ for the reserving process. Built a C++ parser and a custom language for automatic GUI generation. Created a print engine for tables and graphics.
- Technologies: .NET 2.0, MFC, .NET 1.1, ADO.NET, COM, XML, VBA, Excel 2003, Access 2003, Oracle 8/9/10g, SQL/PLSQL, UML.
- Tools: Visual Studio 6.0/2003/2005, Visual Source Safe, Team Foundation Server, Toad, TestDirector/Quality Center, Rational Rose, Infragistics, Dundas.
Software Developer
Fa. Käsbeitzer GmbH
- Developed an application in Microsoft Access to create delivery notes, invoices, reminders, and batch invoices
- Database: Microsoft Access 97/XP/2003
- Industry: Trade
Software Developer
Siemens AG
- Migrated the PN customer and order database (private networks) to SAP
- Developed an interface to SAP (adjusted data model, updated Oracle database, modified C programs) for data transport between server and SAP
- Languages: C, PL/SQL
- Tools: SQL*Plus
- Database: Oracle 7/8
- Industry: Telecommunications
Employee
IA Information Systems AG
- Developed a Java applet to display object relationships
- Developed an ActiveX control to display object relationships
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Healthcare, Information Technology, Manufacturing, Insurance, Energy, and Banking and Finance.
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Quality Assurance, Business Intelligence, and Accounting.
Skills
Databases
- Msaccess 2000/2003/2007/2010/2021
- Oracle
- Sqlserver2000/2005/2008/2012/2014/2019
- Sqlserverce/2005
- Sybase
Programming Languages/programs
- Testdirector/quality Center
- Team Foundation Server
- .Net Compact Framework 1.0/2.0/3.5
- Excel 2003/2007
- Word 2003/2007
- Asp.net 2.0
- C#, Vb .Net
- .Net 1.1/2.0/3.0/3.5/4.0
- Visual Basic
- Visual Studio 2005/2008/2010
- Visual Fox Pro
- Ajax
- Odbc, Dao
- Ole/activex
- Unix Shell Scripts
- Pl/sql, Sql
- Adsi (Active Directory Service Interface)
- Java
- Shell Programming Under Windows 95/98/nt/2000/xp/vista
- Oracle Web Server
- Html
- C++, Managed C++
- Toad
- Wpf (Windows Presentation Foundation)
- Wcf (Windows Communication Foundation)
- Linq
- Nunit
- Design Patterns (Mvc, Mvp, Factory, Singleton, Facade, Mvvm)
- Analysis Services 2005, Mdx
- Reporting Services 2005
- Silverlight 4
Operating Systems
- Unix
- Windows 95/98/nt/2000/xp/vista
Special Knowledge
- Strong Knowledge Of The Reinsurance Industry
- Shell Programming
- Enocean
Languages
Education
FH Regensburg
Diploma in Computer Science (FH), specialization in object-oriented software development · Computer Science (Engineering) · Regensburg, Germany · Good
Statistics
Experience
Global Experience
Expertise
Profile
Frequently asked questions
Do you have questions? Here you can find further information.
Where is Stefan based?
What languages does Stefan speak?
How many years of experience does Stefan have?
What roles would Stefan be best suited for?
What is Stefan's latest experience?
What companies has Stefan worked for in recent years?
Which industries is Stefan most experienced in?
Which business areas is Stefan most experienced in?
Which industries has Stefan worked in recently?
Which business areas has Stefan worked in recently?
What is Stefan's education?
What is the availability of Stefan?
What is the rate of Stefan?
How to hire Stefan?
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
Similar Freelancers
Discover other experts with similar qualifications and experience
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a Architect/Software Developer
Nearby freelancers
Professionals working in or nearby Ottobrunn, Germany
Most recent projects
FRATCH works with many companies and recruitment agencies. Here you will find our recently posted projects and opportunities.
