Wolfgang Dietzinger - Mechanical Engineering Manufacturer, Erding (part-time)

Recommended expert

Bruckberg, Germany

Experience

Jul 2025 - Present

7 months

Erding, Germany

Mechanical Engineering Manufacturer, Erding (part-time)

Update the C++ GUI with MFC
Effort estimation for migrating the GUI to Qt

Jun 2023 - Dec 2024

1 year 7 months

Karlsruhe, Germany

Process Automation, Automation Technology Manufacturer, Karlsruhe

.NET 4.8 / C#, Angular 17, RxJs, IIS, HTML, CSS, unit tests
Creating and maintaining client-side web applications with Angular
Maintaining server-side web applications with ASP.NET Framework for an automation technology web application

Dec 2022 - Feb 2023

3 months

Berlin, Germany

ETL Process Documentation, Payment Service Provider, Berlin

.NET 6 / C#, Entity Framework, SQL Server, Kafka client, Event Driven Architecture
Document message processing for Kafka topics and SQL Server
Document message processing for REST and GraphQL interfaces
Maintenance and troubleshooting for ongoing operations

Jun 2022 - Dec 2022

7 months

Mannheim, Germany

Identity Verification, Recruitment Agency, Mannheim

.NET 6 / C#, Entity Framework, SQL Server, REST, xUnit, Azure DevOps, Blazor Web App, Atlassian Jira/Confluence, Open API/Swagger
Create microservice REST APIs for identity verification
Build a Blazor web frontend for personal data
Unit tests and deployment

Jan 2022 - Jun 2022

6 months

Bielefeld, Germany

Machine Control, Mechanical Engineering, near Bielefeld

.NET 6 / C#, MongoDB, REST, xUnit, GitLab, Docker, SkiaSharp, Open API/Swagger, RabbitMQ, Event Driven Architecture
Create microservice REST APIs for machine data and program control of a conveyor system
Process images with SkiaSharp for error detection on the conveyor belt
Unit tests

Sep 2021 - Dec 2021

4 months

Velbert, Germany

Order management, mechanical engineering, Velbert

.NET 6/ C#, MS SQL Server, Entity Framework Core 6, REST, xUnit, GitLab
Create REST APIs for accessing SQL Server 2019

Feb 2021 - Aug 2021

7 months

Ingolstadt, Germany

Measurement data management, Ingolstadt

Java JDK 1.8, Spring Boot, PostgreSQL, Kubernetes, MS Azure, Angular 10, Kafka, Helm charts, BLOBs, Elasticsearch 7, OpenAPI/Swagger, AWS
Backends with BLOB storage for measurement data and metadata indexing using Elasticsearch and Spring Boot
Data management with PostgreSQL and JPA repositories
Migration of the application to MS Azure AKS Kubernetes with Helm charts
Front end with Angular Material and NgRx store

Aug 2020 - Aug 2020

1 month

Düsseldorf, Germany

Analysis of the backend of a mobile route planning app, Düsseldorf

.NET Core 3.1, C# 8, Entity Framework, Oracle DB, RabbitMQ, SOAP XML
Analyze a mobile route planning app and design the backend architecture with RabbitMQ-based message queues
Determine the requirements for phasing out the existing backend system and running it in parallel

Jun 2020 - Jul 2020

2 months

Düsseldorf, Germany

Extending a mobile route planning app, Düsseldorf

Ionic Framework, AngularJS, C#, .NET 4.8, Entity Framework, Newtonsoft JSON, MySQL, RealmDB
Extend a mobile app with ASP.NET JSON web services
Build the front end with AngularJS and Ionic
Create a payment interface

Mar 2020 - May 2020

3 months

Munich, Germany

Reworking a pricing calculation for a sales database to .NET Core 3.1, Munich

PostgreSQL, C#, .NET Core 3.1, Entity Framework, Newtonsoft JSON, Docker containers, PHP 7, MongoDB, VueJS, xUnit, Serilog, Angular with NgxAdmin
Refactor a pricing calculation for an internal sales database from PHP 7 to ASP.NET Core JSON web services
Migrate the domain model from MongoDB to a PostgreSQL database
Adapt the admin web application with VueJS and .NET Core JSON web service
Unit tests with xUnit
Deploy web services as Docker containers
Rework the NuxtJs web front end to Angular with NgxAdmin as a portal solution and create a prototype

Jan 2020 - Feb 2020

2 months

Koblenz, Germany

Frontend and Backend Architecture, Koblenz

NodeJs, React NextJs, HTML5, Yarn
Designing frontend architecture with React NextJs and a monorepo using Nx for React components
NodeJs REST web interfaces for front-end development

Nov 2019 - Feb 2020

4 months

Munich, Germany

Migration of a GIS Web Application to Angular 9, Munich

Angular 9, OpenLayers GIS, C#, .NET Core 3, HTML5
Migrating a GIS web application from PHP 7 Symfony to Angular 9 and .NET Core 3
OpenLayers web maps

Aug 2019 - Oct 2019

3 months

Munich, Germany

Risk Assessments for a Banking Group, Munich

C#, .NET 4.7, ASP.NET Razor Pages, HTML5 and jQuery components, Visual Studio 2017, MS SQL Server
Developing functional extensions for predictive models and risk assessments for bank customers
Troubleshooting
Documentation

May 2019 - Jul 2019

3 months

Dresden, Germany

Energy Generation with Consumption Forecast and Numerical Optimization, Dresden

Azure Cloud, Docker, DB, NestJS, TypeScript, GraphQL, TypeORM, NodeJs 12, PostgreSQL, R and numerical optimization, OpenAPI/Swagger
Designing system architecture for Docker containers and MS Azure Cloud
Creating web services to capture equipment data from energy producers using the NestJS framework in TypeScript
Building a data access layer with GraphQL for a web frontend with a PostgreSQL database
Integrating numerical solvers for consumption forecasting and optimizing operation schedules of electrical systems with R, COINOR and GLPK

May 2019 - May 2019

1 month

Dresden, Germany

Industry 4.0 IIoT Machine Integration, Dresden

Operational data collection with edge gateways
Consulting on edge gateway architecture and interfaces
Market overview of IoT gateways and data interfaces to PLCs

Mar 2019 - Apr 2019

2 months

Dresden, Germany

Industry 4.0 IIoT operational data acquisition, Dresden

Azure Cloud, Docker and database, C#, .NET Core 2, Visual Studio 2017, Java, Spring Boot, Kafka, MQTT, time-series PostgreSQL/TimescaleDB
System architecture and design for Docker containers and MS Azure Cloud including selection and review of system software
Developed an application to collect and analyze operational data from packaging machines
Reading machine messages from Apache Kafka and saving them as time series in PostgreSQL using Spring Boot
Creating Docker images for Kubernetes clusters
Designing a database schema for PostgreSQL and TimescaleDB

Feb 2019 - Feb 2019

1 month

Munich, Germany

Test data acquisition for electronics manufacturing, Munich

C#, .NET 4.7, Visual Studio 2017, WPF
Extending an application to collect and analyze operational data from electronic component production
Expanding the GUI with WPF
Analyzing tests of electronic modules

Dec 2018 - Jan 2019

2 months

Frankfurt, Germany

IoT portal prototype, Greater Frankfurt

C#, .NET Core 2, Entity Framework Core 2, Azure Cloud SQL DB / Functions / IoT Hub, Visual Studio 2017, GIT, xUnit, Dapper, OpenAPI/Swagger
Creating REST web services for an IoT portal to store device data
Data storage in Azure SQL DB using Entity Framework Core 2 and Dapper
Azure Cosmos DB with prototype Gremlin GraphQL
C# Azure Cloud Functions
Azure API Gateway for Cloud Functions
Testing measurement data with MQTT against MS Event Hub and MS Event Grid
Updating devices in Azure IoT Hub
Unit tests of all functionalities
GitLab GIT source control
Developing data access from the API Gateway to the database

Oct 2018 - Dec 2018

3 months

Munich, Germany

Energy consumption portal, Munich

C#, ASP.NET Core 2, Entity Framework Core 2, Azure Cloud SQL, Visual Studio 2017, GIT, xUnit
Creating REST web services for an energy consumption portal
GitHub source control
Docker containers for Microsoft Azure

Jun 2018 - Aug 2018

3 months

Munich, Germany

Tax reporting web application, Munich

C#, ASP.NET Core 2, Entity Framework Core 2, Angular 6, CSS, Azure Cloud SQL, Visual Studio 2017, GIT
Creating a web application to collect financial accounting data for tax analysis and reporting using Angular 6 for the web frontend and ASP.NET Core 2 with REST interfaces
Importing and exporting data in Azure SQL Database using .NET Entity Framework Core 2

Apr 2017 - May 2018

1 year 2 months

Ingolstadt, Germany

Seller Portal, Electronics Retailer, Ingolstadt

Spring Boot Framework, Java, Angular 4, CSS, JUnit 4, Docker containers, Ruxit Docker Monitoring, IntelliJ, continuous deployment with Jenkins, SOAP XML
Creating web pages to display customer data with AngularJS SPA
Tablet app for customer self-service with Angular 4 SPA, HTML barcode
REST web services with Spring Framework 1.5
SOAP XML clients for backend systems with Axis2
Oracle DB with auxiliary tables
Creating PDF forms
Web services as Docker containers in the Rancher cluster
Troubleshooting and quality assurance in distributed data stores
Reviewing Jenkins build scripts
Designing customer web app for the checkout area

Feb 2016 - Mar 2017

1 year 2 months

Lucerne, Switzerland

Product Portal for Architects, Lucerne, Switzerland

C#, ASP.NET MVC 5, Entity Framework 6, jQuery, Bootstrap, VueJs, WCF, Visual Studio 2015
Creating web pages for product selection for architects and building planners with jQuery and VueJs view models
SOAP client with WCF for product data from SAP system
Generating CAD drawings in PDF
Product filter for visualizing elevators
Designing visual product configurator

Aug 2015 - Oct 2015

3 months

Frankfurt, Germany

Payroll System for Call Center, Frankfurt

Visual Studio 2015, ASP.NET MVC 5, Entity Framework 6, jQuery, Bootstrap, Razor views
Creating the data model and payroll
Creating input forms in HTML

Apr 2015 - Apr 2015

1 month

Herzogenaurach, Germany

Rollout Preparation for Mechanical Engineering Company, Nuremberg and Herzogenaurach

MS Office 2013
Part-time project
Coordinating rollout capacities
Preparing user help with SharePoint team sites

Feb 2015 - Aug 2015

7 months

Herzogenaurach, Germany

Portfolio Management ALM for Mechanical Engineering Company, Nuremberg and Herzogenaurach

TFS 2013, visualstudio.com
Selecting an ALM solution
Exploring platforms for mobile software and app development
Planning technical and organizational priorities for teams worldwide
Testing software development with Xamarin Forms for mobile devices – native apps
Testing software development with ASP.NET, HTML5, TypeScript for mobile devices – hybrid apps

Dec 2014 - Jul 2015

8 months

Herzogenaurach, Germany

Project management for the introduction of a template system for MS Office for mechanical engineering companies, Nuremberg and

MS Office 2013, MS Project
Analysis and planning of technical and organizational priorities
Requirements analysis and scheduling
Selection process for the template system
Concept/design and pilot

Nov 2014 - Jan 2015

3 months

Enhancing a template generator for MS Word

Word 2013, C# with .NET 4.0, Open XML SDK 2.5
Part-time project
Extending a template generator for MS Word templates
XML data binding to ContentControl fields

Jul 2014 - Sep 2014

3 months

Bayreuth, Germany

Test data for chemical plant, Roth near Nuremberg

SQL with Access 2010
Part-time project
Extending a small application for recording test and storage data

Jul 2014 - Jul 2014

1 month

Landshut, Germany

Free-text search for a software vendor's web application, Landshut

Java 1.7, Lucene, Hibernate 3.3, MariaDB
Part-time project
Improving the free-text search for the search mask
Testing indexes for the free-text search

Sep 2013 - May 2014

9 months

Starnberg, Germany

Payment portal for medical technology, Starnberg

C# with .NET 4.5, ASP.NET MVC, HBCI API, PHP, jQuery, SEPA transactions
Part-time project
Creating web services in ASP.NET MVC for the SEPA backend
Creating HTML pages with jQuery and PHP server functions for SEPA transactions
MySQL database

Apr 2013 - Nov 2013

8 months

Eschborn, Germany

Converting Excel files for a bank in Eschborn

OMPM converter, C# with .NET 4.5 and batch scripts
Preparing and executing the project with automation scripts
Leading a team of 3 members
Converting a large number of Excel files from Excel 2003 to Excel 2010
Reviewing, correcting, and testing VBA macros for banking applications and financial services in Excel 2003/2010

Mar 2012 - Oct 2014

2 years 8 months

Computer-based mammography for a Japanese medical device manufacturer

C# with .NET 3.5/4.5, WPF, DICOM, WCF, ADO.NET, MS SQL Server/T-SQL, xUnit
Creating a medical application with graphics in WPF for X-ray and mammography images
Designing and creating orthopedic measurements

Nov 2011 - Feb 2012

4 months

Schwandorf, Germany

Web application in food retail, Schwandorf

C# with .NET 4, ASP.NET MVC 4, MS SQL Server with Entity Framework 4/T-SQL, XML, unit tests
Developing a web application to handle quality assurance processes

May 2011 - Oct 2011

6 months

Neutraubling, Germany

Preparing documents for mechanical engineering, Krones AG, Neutraubling

C# with .NET 4, Open XML, SQL, XML, WCF, NUnit tests
Developing a document preparation tool from Word 2010 format to an SAP system
Designing and creating a WCF web application with load balancing

Nov 2010 - May 2011

7 months

Munich, Germany

Market research analyses for TNS Infratest, Munich

C# with .NET 3.5, SQL, XML, Composite Application Blocks, MS unit tests
Developing statistical analyses with an SQL database

Apr 2010 - Sep 2010

6 months

Nuremberg, Germany

Financial Planning and Reporting for Datev AG, Nuremberg

C# with .NET 3.5, Xlinq and XML, Office Open XML/Word 2007, SQL Server OLAP
Creating reports from OLAP cubes using WordML for further processing with MS Word 2007
Creating budget plans for municipalities as Word documents

Oct 2008 - Aug 2009

11 months

Unterschleißheim, Germany

Medical Image Processing for International Medical Technology Manufacturer, Unterschleissheim

C# with .NET 3.5, WPF, XML serialization, MS SQL 2005, T-SQL
Developing an application in medical technology with WPF graphics for X-ray images

Jun 2008 - Sep 2008

4 months

Vilsbiburg, Germany

Test Automation for Automotive Supplier, Vilsbiburg

C# with .NET 3.5, WPF, XML serialization, sockets and threads
Developing a test automation application for assembly tables in WPF with Dalsa Sherlock IPG image recognition
Controlling electronic switches via sockets
Creating configuration and serialization in XML
Managing the test process with individual threads
Testing image recognition of product images
Unit testing with MSTest
On-site commissioning at the Romanian plant

May 2007 - May 2008

1 year 1 month

Nuremberg, Germany

Data Analysis for Market Research Company, Nuremberg

C# with .NET 2, WinForms, Reflection API, XML serialization
Extending the application for graphical interfaces and data analysis in field research for broadcasting
Creating application commands and command storage
Developing interfaces and data models, data export
Implementing sorting and filtering logic

Apr 2007 - Apr 2007

1 month

Feasibility Study for Document Processing Templates

Java, OpenOffice
Analyzing the feasibility of document processing for templates

Feb 2007 - Feb 2007

1 month

Burgkirchen an der Alz, Germany

Infraserv GmbH, Burgkirchen

C# with .NET 1.1, Oracle database, WinForms, Reflection API, XML and XML Schema, XSLT
Extending and revising an industrial application for shift and work planning in the area of graphical user interfaces and database connectivity
Data export with format transformation using XSLT
Creating a module for database validation with XML configuration

Oct 2006 - Oct 2006

1 month

Database import of XML data

MySQL, StAX XMLReader, Java 1.5
Reading XML documents for database import

Mar 2005 - Sep 2006

1 year 7 months

Ruhstorf an der Rott, Germany

Pharmacy software for MC Lindinger GmbH, Ruhstorf an der Rott

PostgreSQL 8, SuSE Linux, Pascal script, partly Java with Eclipse, XML export, UML sequence diagrams
Database development of a medical information system for pharmacists
Application development and maintenance of GUI applications for inventory management with point-of-sale and medical information system for pharmacies
Designing and automating data preparation and synchronization of medical data for several thousand customer systems
Remote maintenance of customer systems
Developing prototypes for reporting with Crystal Reports and Jasper Reports
XML export of data for archiving and auditing for the tax authorities in GDPdU format
Representing small program sequences with UML sequence diagrams for documentation

Oct 2004 - Nov 2004

2 months

Leiblfing, Germany

Web application for Evidanza GmbH, Leiblfing

C#, MS SQL 2000, ADO.NET, ASP.NET in .NET 1.1
Developing a prototype for a web application in reporting
Accessing MS SQL Server with ADO.NET
Calculating and displaying tables and cross tables with ASP.NET

Jan 2004 - Mar 2005

1 year 3 months

Landshut, Germany

Industry solution for KWP Informationssysteme GmbH, Landshut

VB.NET, XML DOM in .NET 1.1, Access 2000 with ADO
Developing the GUI and database for a client-side module of an XML web service in the housing industry: handling quotes, item catalogs, orders, and invoices for an industry solution in the construction trade
Module for incoming invoice book with extensions for postings and payments

Oct 2002 - Aug 2004

1 year 11 months

Munich, Germany

Database development for convey GmbH, Munich

MS SQL 2000, Oracle 9, Sybase Anywhere 10
Database development with the company's own IDE
Application development: HTML and GUI for measurement recording and law firm system with the company's own IDE
Testing the applications with manual functional tests and partially automated load tests using JavaScript

Sep 2000 - Oct 2004

4 years 2 months

Deggendorf, Germany

Business informatics studies at Deggendorf University of Applied Sciences

First part-time computer science program in Bavaria
Graduated with a Bachelor of Arts

Jan 2000 - May 2002

2 years 5 months

Landshut, Germany

Webdefender GmbH, Landshut

Network administration: Windows 2000, firewall, internet
Administration of Windows servers, Internet and network, and database servers
User support

May 1999 - Dec 1999

8 months

Germany

Network administrator training

NT4, Windows networks
Administration of Windows servers, network protocols
MCSE exam
Internship at Deutsche Telekom in Darmstadt
Internship at Webdefender GmbH in Landshut

Mar 1995 - Dec 1998

3 years 10 months

Russian Federation

Work in Russia

Project management in plant construction, technical sales
Assistant in management and project planning at a newsprint mill in Russia
Sales representative for a German window hardware and machinery manufacturer in central Russia
Own retail business for window hardware and other goods

Jan 1995 - Feb 1995

2 months

Korschenbroich, Germany

Project Assistant at BLV Publisher for Computer Books, Korschenbroich

Worked as a project assistant at a publisher for computer books

Oct 1990 - Dec 1994

4 years 3 months

Munich, Germany

Precision Engineering studies at Munich University of Applied Sciences

Graduated with a Diploma in Precision Engineering

Sep 1988 - Jun 1989

10 months

Pfarrkirchen, Germany

Technical High School Pfarrkirchen

Graduated with a technical college entrance qualification

Oct 1986 - Jun 1988

1 year 9 months

Burghausen, Germany

Training as an Electrical Systems Installer at Wacker Chemie in Burghausen

Certified as an electrical systems installer by the Chamber of Industry and Commerce

Summary

Architecture and prototypes for microservices and web applications
over 20 years of software development
6 years of web development and web front-ends with TypeScript/JavaScript (Angular, VueJs, Blazor, React)
over 3 years of backend systems with Java
over 10 years of backend systems with C# .NET, Java, NodeJs
over 10 years of REST & SOAP XML APIs
over 5 years of GUI applications with WPF and Windows Forms in C#/.NET
20 years of databases with SQL & NoSQL
over 3 years of cloud systems, Docker containers, MS Azure, AWS, functions, databases, IoT Hub

Over 25 years of IT experience, including 3 years in administration, networks, and firewalls

Customer and employee portals as web applications with backend systems in Java, .NET, TypeScript. Measurement and device data in the technical industry and automation technology. Quality and functionality of the applications are the main focus for your company. I recommend architecture prototypes and Domain Driven Design to design balanced systems and avoid excessive technical effort.