Karl Steinzer - Freiberuflich

Q: Where is Karl based?

Karl is based in Horitschon, Austria .

Q: What languages does Karl speak?

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

Q: How many years of experience does Karl have?

Karl has at least 20 years of experience. During this time, Karl has worked and for 5 different companies . The average length of individual experience is 4 years and 11 months . Note that Karl may not have shared all experience and actually has more experience.

Q: What companies has Karl worked for in recent years?

In recent years, Karl has worked for Freelance .

Q: Which industries is Karl most experienced in?

Karl is most experienced in industries like Information Technology (IT) , Automotive , and Retail .

Q: Which business areas is Karl most experienced in?

Karl is most experienced in business areas like Information Technology (IT) , Product Development , and Quality Assurance (QA) . Karl also has some experience in Procurement and Purchasing and Project Management .

Q: Which industries has Karl worked in recently?

Karl has recently worked in industries like Automotive , Information Technology (IT) , and Retail .

Q: Which business areas has Karl worked in recently?

Karl has recently worked in business areas like Information Technology (IT) , Product Development , and Quality Assurance (QA) .

Q: What is Karl's education?

Karl holds a Bachelor in Computer Science from TU Wien .

Q: Does Karl have any certificates?

Karl has 1 certificate : Driver's License Class B .

Recommended expert

Horitschon, Austria

Experience

Jan 2017 - Present

9 years 2 months

Freelance

Implementation of a Blazor application and Windows Services with RabbitMQ, MS Orleans, SignalR, and Powershell to manage automated deployments and updates in VMWare
Development of a WPF application with C# and REST API integration (Object Annotation) for a German automotive company in distributed teams (Austria, Germany, Russia, India) with the following tasks:
Requirements analysis, design, implementation, branching/merging, code reviews, optimizations, testing, bug fixing
Integration of payment terminals and card readers into a vending platform using .NET Core
Frontend development in Angular & AngularJS (SignalR and REST API integration, TypeScript, HTML, CSS)

Jan 2014 - Dec 2016

3 years

JetTicket Software GmbH

Further development of the webshop (VB.NET) with payment integration
Development of tools in C# for updates and maintenance
Design of WCF services as a database interface to the legacy system

Jan 2012 - Dec 2013

2 years

DevTeamOne

Analysis, design and implementation of large frontend projects with social media integration for a retail chain
Further development of the content management system in MS Silverlight
Windows 8 app for an Austrian company
Development using Microsoft Azure

Oct 2009 - Dec 2011

2 years 3 months

Pointsmanagement

Project "eNeg" – design and co-project management of a development team in Egypt in cooperation with TU Wien
Integration of eSource-eNeg via web services
Relaunch of eSource 2.0 (design, project management, development)
Automated web testing with Telerik

Jul 2006 - Sep 2009

3 years 3 months

negPoint

eSourcing solution for auctions and tendering in C#.Net and SQL
Excel integration online/offline
Design and documentation
Deployment and server maintenance (Windows Server with IIS and SQL Server)
Support

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 (19.5 years), Automotive (9 years), and Retail (9 years).

Information Technology

Automotive

Retail

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 (19.5 years), Product Development (17.5 years), Quality Assurance (11.5 years), Procurement (3 years), and Project Management (2 years).

Information Technology

Product Development

Quality Assurance

Procurement

Project Management

Skills

Programming

C#.net, Vb.net, .Net Core
Blazor, Rabbitmq, Signalr, Ms Orleans, Powershell
Angular, Typescript, Javascript
Html, Css, Bootstrap, Xml, Json
Sql, Sqlite, Entity Framework
Wpf, Wcf, Rest Api, Soap, Swagger
Ioc, Mef, Mvvm
Asp.net, Ajax, Silverlight

Tools & Programs

Visual Studio, Visual Studio Code, Webstorm
Tfs, Git, Bitbucket, Sourcetree
Agile Software Development (Scrum, Kanban)
Jira, Confluence And Azure Devops
Ms Sql Server And Microsoft Iis
Telerik Controls, Reporting, Automated Testing
Farpoint Excel
Sharpdx (Pcl), Hdf

Driver's License

Class B

Personal Attributes And Interests

Motivated
Flexible
Team Player
Committed
Resilient
Solution-oriented
Willing To Learn
.Net Core, Azure, Blazor, Xamarin, Distributed Systems, Multi-threading/optimizations, Security, Clean Code
Music
Non-fiction (Psychology, Philosophy, Physics)
Calisthenics
Football

Languages

German

Native

English

Advanced

Education

Oct 2005 - Jun 2020

TU Wien

Bachelor's in Computer Science, Software & Information Engineering · Computer Science · Vienna, Austria

Sep 1999 - Jun 2004

HTBLuVA Wr. Neustadt

Matura · EDVO · Wiener Neustadt, Austria

Certifications & licenses

Driver's License Class B

Profile

Created

June 2025

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Frequently asked questions

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

Where is Karl based?

Karl is based in Horitschon, Austria.

What languages does Karl speak?

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

How many years of experience does Karl have?

Karl has at least 20 years of experience. During this time, Karl has worked and for 5 different companies. The average length of individual experience is 4 years and 11 months. Note that Karl may not have shared all experience and actually has more experience.

What companies has Karl worked for in recent years?

In recent years, Karl has worked for Freelance.

Which industries is Karl most experienced in?

Karl is most experienced in industries like Information Technology (IT), Automotive, and Retail.

Which business areas is Karl most experienced in?

Karl is most experienced in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA). Karl also has some experience in Procurement and Purchasing and Project Management.

Which industries has Karl worked in recently?

Karl has recently worked in industries like Automotive, Information Technology (IT), and Retail.

Which business areas has Karl worked in recently?

Karl has recently worked in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA).

What is Karl's education?

Karl holds a Bachelor in Computer Science from TU Wien.

Does Karl have any certificates?

Karl has 1 certificate: Driver's License Class B.

What is the availability of Karl?

Karl is immediately available for suitable projects.

What is the rate of Karl?

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