Karsten Held
C# & Web Developer
SharePoint Specialist, Freelancer & Contractor
I'm a freelancer and contractor with over 15 years of work experience. Starting with Visual Basic in 1998, I worked with C#, Java, and JavaScript. I focus on the MS Office 365 / SharePoint stack. I help my customers with the migration and integration issues of the Office 356 / SharePoint platform. If required, I build mobile apps and intranet solutions that connect internal systems, different departments and external partners. My area of expertise is business process automation, process optimization and data integration across company and department borders. To achieve first-class modern solutions I also use state-of-the-art open source frameworks. I'm also an Excel and VBA expert.
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Services
Application Development
Application design, prototyping and programming using C#, JavaScript, WPF/XAML and WinForms. Office 365 Apps in the cloud (Office365 App Model) or local Office Solutions using VSTO/COM Add-Ins or VBA.
SharePoint Solutions
Design, configuration and rollout of SharePoint solutions. WebPart and App Development in C# and JavaScript. Integration with other LOB solutions. Upgrading of MS Access and ASP.NET solutions.
Mobile Development
Mobile Business Apps for iOS and Android using the AppGyver Framework with HTML5/JS/Cordova under the hood. Apps are downloaded via a scanned QR code using the AppGyver scanner app or can be published to the official App Stores.
Web Design & Development
Responsive websites using HTML5, JavaScript, CSS3, ASP.NET, MVC4, JQuery and frameworks (Bootstrap, Foundation, Ember, Knockout, AngularJS). Complete Web-Design.
Experience
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Now
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JUL 2019 - DEC 2020
Freelance SharePoint Consultant @ Vattenfall, Berlin
SharePoint Online & Office 365 administration, 3rd level support, development & implementation of governance guidelines, reporting on tenant level, SharePoint training (Videos & OnSite).
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Sep 2017 - Jun 2018
Freelance Developer @ Deutsche Post DHL Group AG, Bonn
Maintenance, development and performance improvement of Excel/VBA/SharePoint solution for Information Security Self Assessment (ISSA) and internal reporting.
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Sep 2016 - Apr 2017
Freelance SharePoint Consultant @ Orbit GmbH, Bonn for Telekom Digital Division
UX Design / Programming of Product Inventory System. Development of SharePoint site provisioning solution (Provider Hosted App, CSOM, C#, ASP.NET).
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Oct 2015
Freelance Software Architect @ m|events, Munich
Development of a mobile app (iOS & Android) that enables the use of mobile onsite checklists for the setup of congresses with SharePoint backend.
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Sep 2015
Freelance SharePoint Consultant @ AUC Akademie der Unfallchirurgie GmbH, München
Initial rollout of SharePoint with migration of existing fileshares to Office 365 / SharePoint Online.
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Jun 2015 - Aug 2015
Freelance SharePoint Consultant @ m|events, Munich
Development of a project management tool for SharePoint/Office365 using workflows. Creation of a cloud-synced Excel solution for offline scenarios.
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May 2015
Freelance Developer @ WhizzyTools, Dresden
Development of End-To-End AES256 encryption solution with SharePoint backend for Web-Apps and Excel-based solutions using Crypto.js and VBA-WEB.
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Apr 2015
Excel Consultant @ Carl GmbH, Munich
Development of Excel-based Solution for mobile time reports with Android tablets and export for tax advisor.
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Jan 2015 - Mar 2015
SharePoint Consultant @ m|events, Munich
Structuring and redesign of the intranet with Office 365 / SharePoint Online.
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May 2014 - Jun 2014
Freelance Excel Consultant @ WhizzyTools.com
Design and development of an Excel-based time tracking solution.
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Jan 2014 - Feb 2014
Freelance Designer
Corporate Design Manual for WhizzyTools.com: Logos, Icons, Color Themes and Fonts.
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Jan 2013 - Dec 2013
Freelance Front-End Designer/Developer @ Avalain, Budapest
UI design and programming of DesktopTracker in Java using Vaadin framework.
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Jun 2012 - Dec 2012
SharePoint Consultant @ Communardo, Dresden
Design, specification and customization of large-scale SharePoint intranets for customers like Axel Springer AG and Voestalpine Group.
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Jan 2012 - Mar 2012
Freelance Web Designer/Developer @ Bencer, Shanghai
Refresh of corporate design and redesign of website with focus on mobile and high-resolution devices.
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Oct 2011 - Nov 2011
Freelance Software Architect @ Osyon GmbH, Berlin
Design and prototyping of a cloud-based task management utility.
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Apr 2011 - Jun 2011
Freelance Software Architect @ Osyon GmbH, Berlin
Concept for an open cloud-based table storage and joining website.
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Feb 2011 - May 2011
Freelance Web Designer/Developer @ Bencer, Shanghai
Webdesign and programming of a website for Bencer's new 'Construction' division.
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2010
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Nov 2010 - Dec 2010
Freelance Designer @ Bencer, Shanghai
Design of a flyer that features the companies services.
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Jan 2010 - May 2010
Freelance Web Designer/Developer @ Bencer, Shanghai
Design and programming of the company website. Development of an automated photo upload tool.
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Mar 2009 - Apr 2009
Freelance Developer @ financial.com, Munich
Customization of a custom Excel Add-In (VBA) that retrieves data from a Thomson Reuters terminal.
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Nov 2009 - Jan 2010
Freelance Software Architect @ Vescore, Munich
Design and specification of the next generation portfolio management tool.
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Aug 2006 - Aug 2008
Head of Application Services & Support @ Vescore, Munich
Design & programming of portfolio management tools in C# (WinForms) and Excel (C#, C++, VBA).
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Jan 2004 - Jul 2006
Junior Portfolio Manager @ Vescore, Munich
Management of 4 global investment funds. Development of several Excel-based trading-tools using a Bloomberg Terminal.
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2004
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Jan 2001 - Dec 2003
Developer @ vescore.com
Design & programming of a web-based Java (Swing, WebStart) application that visualizes complex model data.
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Mar 2000 - Dec 2000
Developer @ Dr. Grob & Partner, Winterthur
Prototyping of a bridge and tunnel management system based on the swiss bridge and tunnel database in Visual Basic.
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Want to know more?
Download CV
Contact
Karsten Held
Rothenburger Strasse 32
D-10099 DRESDEN
+49 176 70861679
karstenheld3@gmail.com