Martin is available for hire

Martin Zikmund

Verified Expert in Engineering

Software Developer

Location

Prague, Czech Republic

Toptal Member Since

January 15, 2019

Martin is a mobile and cloud solutions developer working primarily in the Microsoft technology stack. He is a Microsoft Certified Professional, Solutions Developer, and Xamarin Certified Mobile Developer. Martin has worked on multiple cross-platform mobile apps and back-end solutions in ASP.NET Core both in team environments and individually. He is looking for interesting and challenging opportunities on Toptal.

Xamarin.Forms C#.NET Windows Forms (WinForms)Microsoft Visual Studio Windows App Development XAML LINQ Model View Viewmodel (MVVM)JSON Azure App Service Universal Windows Platform (UWP)Xamarin Windows .NET Core

Portfolio

PricewaterhouseCoopers

Azure DevOps, Microsoft Azure, ASP.NET Core

Hexagon AB

Windows Presentation Foundation (WPF), Android...

Sphereline s.r.o.

Unity, .NET, Xamarin, Universal Windows Platform (UWP)

Experience

.NET - 8 years C# - 8 years Windows Presentation Foundation (WPF) - 6 years Xamarin - 4 years Universal Windows Platform (UWP) - 4 years Azure - 4 years .NET Core - 2 years ASP.NET Core - 2 years

Availability

Part-time

Preferred Environment

Git, Visual Studio 2017, Windows 10

The most amazing...

...product I've built is a Xamarin.Forms mapping application used daily by hundreds of field technicians of a top-tier energy provider in the Czech Republic.

Work Experience

Senior Advisor

2017 - PRESENT

PricewaterhouseCoopers

Built an ASP.NET Core Web API with OpenID Connect authentication.
Worked on back-end infrastructure for a business application targeting CEOs and top management of large companies.
Managed builds and deployments on Azure DevOps.
Participated in frequent inter-team communication, using Scrum methodology.
Managed various Microsoft Azure environments including App Services, Azure Storage, Azure SQL, and Redis.

Technologies: Azure DevOps, Microsoft Azure, ASP.NET Core

Mobile Solution Architect, Web Service Developer

2014 - PRESENT

Hexagon AB

Developed a cross-platform mapping application providing complex services to field technicians of a top-tier energy provider in the Czech Republic. The app displays a variety of geographical data and provides insights for the technician to be able to track verification progress and navigate between points of interest efficiently. The application communicates with a third party in a two-way manner to access additional data. The app is fully cross-platform, available for Windows 10 and Android.
Built a web service providing geographical information to several clients.
Provided cross-platform mobile app development consultations to other teams within the company.
Built web components for a native Android app.
Shared knowledge around Xamarin and Xamarin.Forms development with other teams.

Technologies: Windows Presentation Foundation (WPF), Android, Universal Windows Platform (UWP), Xamarin.Forms

Lead Developer

2013 - PRESENT

Sphereline s.r.o.

Built mobile applications for the Microsoft Store on Windows 10.
Created several smaller portfolio websites for clients.
Developed apps on contract.

Technologies: Unity, .NET, Xamarin, Universal Windows Platform (UWP)

Software Engineer (R&D)

2013 - 2018

CertiCon a.s.

Created a mobile application with which the user can remotely control a robotic mission. The user can assign autonomous tasks to individual robots or groups as well as control them directly.
Built a camera surveillance system simulation allowing optimization of viewing angles and rotation of individual cameras.
Provided guidance on implementing interop of UWP apps with classic Windows DLL libraries using Brokered Windows Runtime Components.
Set up build and test pipelines for UWP apps.
Created a Windows desktop application allowing plotting web service data in different forms to charts.

Technologies: Android, Win2D, Xamarin, Universal Windows Platform (UWP)

Experience

Personal Blog

https://blog.mzikmund.com/

I am actively writing posts on my personal blog. Main topics include UWP, Xamarin and ASP.NET development.

Alchemy 10

Universal Windows Platform game for Windows 10. Features many features of UWP including voice control, Fluent design system and Microsoft Advertising platform.

Contributions to Xamarin.Forms

https://github.com/xamarin/Xamarin.Forms/pulls?q=is%3Apr+author%3AMartinZikmund+is%3Aclosed

I made several pull requests that were accepted to Xamarin.Forms' codebase on GitHub.

Contributions to MvvmCross

https://github.com/MvvmCross/MvvmCross/pulls?q=is%3Apr+author%3AMartinZikmund+is%3Aclosed

I made several pull requests that were accepted to MvvmCross codebase on GitHub.

Brick Collection

A UWP application for fans of Lego. The users can enter the Lego sets they own and the application will store the collection details in a cloud database. This can then be used to search for owned parts, to download instructions for individual sets and also viewing statistics.

Skills

Languages

C#, XAML, SQL, HTML, C++, Java, HTML5, JavaScript, CSS

Frameworks

.NET, .NET Core, Windows Presentation Foundation (WPF), ASP.NET, ASP.NET Core, ASP.NET Core MVC, ASP.NET MVC, NUnit, Json.NET, Unity, Unity2D, Entity, Entity Framework Core, ASP.NET Web Forms, Unity3D, Monogame

Libraries/APIs

Windows Forms (WinForms), LINQ, Xamarin.iOS, Xamarin.Android, Azure Blob Storage API

Tools

Microsoft Visual Studio, Azure App Service, Adobe Photoshop, MSTest, Git, ReSharper, xUnit, Microsoft Graph

Paradigms

Model View Viewmodel (MVVM), Windows App Development, Azure DevOps, Agile, MVC Design, Unit Testing, App Development, Reactive Programming

Platforms

Universal Windows Platform (UWP), Xamarin, Visual Studio 2017, MvvmCross, Windows, iOS, Android, Azure, Microsoft Edge, Windows UI, Azure Functions

Storage

JSON, SQL Server 2017, Azure SQL

Other

Xamarin.Forms, UWP UI Design, App Design, Windows 10, Microsoft Azure, Win2D, Mixed Reality (MR), Azure WebJobs

Education

2012 - 2020

Bachelor's and Master's Degrees in Software and Data Engineering (in progress)

Charles University - Prague

Microsoft

OCTOBER 2011 - PRESENT

Microsoft® Certified Professional Developer: Windows Developer 4

Microsoft