Top Software Engineers in

Xamarin and .NET MAUI Development

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xamarin
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xamarin-forms
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ios
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dotnet
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android

Xamarin and .NET MAUI Development focus on creating cross-platform applications using .NET technologies. Xamarin allows developers to build native apps for iOS, Android, and Windows using a single shared C# codebase, while .NET MAUI extends these capabilities to new platforms such as macOS and provides enhanced development tools and APIs. Together, they facilitate the creation of rich, high-performance apps that include mobile, desktop, and everything in between.

Ranks are based on the open source contributions and reassessed every 30 days

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1

Matthew Leibowitz
Principal Software Engineer at Microsoft
/
South Africa
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
mono/SkiaSharp
141 releases, 183 reviews, 2742 commits in 6 years 11 months
dotnet/maui
1 release, 3031 reviews, 1236 commits in 1 year 11 months
mono/SkiaSharp-API-docs
9 reviews, 55 commits, 41 PRs in 3 years 3 months
Top skills
Score
command-line-tools
10
app-platform
10
windows-app-sdk
10

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2

Rui Marinho
Software automation tester at Five9
/
Portugal
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
xamarin/Xamarin.Forms
62 releases, 360 reviews, 1598 commits in 6 years 8 months
dotnet/maui
15 releases, 2368 reviews, 913 commits in 2 years 4 months
nrogoff/Xamarin-Forms-Labs
176 commits in 2 years 5 months
Top skills
Score
ios
10
azure-pipelines
10
mac-catalyst
10

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3

Javier Suárez Ruiz
Senior Software Engineer at Microsoft
/
Spain
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
xamarin/Xamarin.Forms
325 reviews, 961 commits, 528 PRs in 5 years 6 months
dotnet/maui
2114 reviews, 818 commits, 803 PRs in 2 years 1 month
jsuarezruiz/Events
204 commits, 188 pushes, 1 branch in 3 years 5 months
Top skills
Score
plugins
10
maccatalyst
10
surface-duo
10

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4

Shane Neuville
This just in at Microsoft
/
United States
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
xamarin/Xamarin.Forms
372 reviews, 1269 commits, 1091 PRs in 5 years 5 months
dotnet/maui
8 releases, 2200 reviews, 754 commits in 2 years 4 months
xamarin/Xamarin.Forms-api-docs
1 review, 6 commits, 1 PR in 11 months
Top skills
Score
ios
10
maccatalyst
10
composable
10

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5

Jonathan Dick
.NET MAUI Team Lead - Principal Software Engineering Manager at Microsoft
/
Canada
Rock Star
15 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
Redth/ZXing.Net.Mobile
17 releases, 4 reviews, 770 commits in 8 years 5 months
xamarin/GooglePlayServicesComponents
9 releases, 637 commits, 65 PRs in 5 years 2 months
xamarin/AndroidSupportComponents
23 releases, 602 commits, 65 PRs in 3 years 7 months
Top skills
Score
card-io
10
mobile
10
barcode
10

#

6

Martijn Van Dijk
Co-Founder @ Baseflow | Google Flutter Insider | Microsoft MVP at Baseflow
/
Netherlands
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
MvvmCross/MvvmCross
28 releases, 11 reviews, 2538 commits in 5 years 8 months
Baseflow/XamarinMediaManager
35 releases, 11 reviews, 768 commits in 7 years 7 months
MvvmCross/MvvmCross-Samples
91 commits, 76 PRs, 67 pushes in 5 years 6 months
Top skills
Score
ios
10
image
10
dotnet-core
10

#

7

Elija Hart
Software Engineer at CodeWise LLC
/
United States
Rock Star
13 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
xamarin/Xamarin.Forms
113 reviews, 761 commits, 613 PRs in 5 years 11 months
dotnet/maui
763 reviews, 303 commits, 553 PRs in 1 year 11 months
Atreides07/Xamarin.Forms
251 commits in 1 year 3 months
Top skills
Score
windows-phone
10
android
10
tizen
10

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8

Stuart Lodge
Founder at Cirrious
/
United Kingdom
Rock Star
13 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
MvvmCross/MvvmCross
2206 commits, 39 PRs, 33 pushes in 4 years 3 months
MvvmCross/NPlus1DaysOfMvvmCross
74 commits in 8 months
slodge/MvvmCrossConference
85 commits in 2 months
Top skills
Score
ios
10
blogspot
10
mono
10

#

9

Gerald Versluis
Senior Software Engineer @ Microsoft | .NET, MAUI, Blazor, Mobile at Verslu
/
Netherlands
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
dotnet/maui
465 reviews, 182 commits, 440 PRs in 1 year 5 months
dotnet/dotnet-maui-api-docs
2 reviews, 15 commits, 19 PRs in 3 months
xamarin/Xamarin.Forms
3 releases, 94 reviews, 224 commits in 5 years
Top skills
Score
ios
10
touchid
10
aspnetcore
10

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10

Jon Lipsky
Head of Customer Onboarding @ Sonar | ex-Microsoft | ex-GitHub | Advisor at Elevenworks
/
United States
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
dotnet/Comet
334 commits, 57 PRs, 190 pushes in 1 year 10 months
dotnet/Microsoft.Maui.Graphics
40 reviews, 202 commits, 93 PRs in 1 year 8 months
dotnet/maui
1 review, 170 commits, 3 comments in 1 year 4 months
Top skills
Score
ios
10
winui3
10
database-engine
10

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11

Tomasz Cielecki
Mobile Cross Platform Professional | Microsoft MVP at Trackman
/
Denmark
Rock Star
13 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
MvvmCross/MvvmCross
10 releases, 196 reviews, 1310 commits in 9 years 10 months
Cheesebaron/Cheesebaron.MvxPlugins
2 reviews, 461 commits, 56 PRs in 7 years 11 months
Cheesebaron/ViewPagerIndicator
79 commits, 24 PRs, 60 pushes in 9 years
Top skills
Score
ios
10
localization
10
desktop
10

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12

Jonathan Peppers
Principal Software Engineer at Microsoft
/
United States
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
xamarin/xamarin-android
20 releases, 1874 reviews, 1558 commits in 5 years 8 months
xamarin/prebuilt-apps
421 commits in 1 year 1 month
xamarin/monodroid-samples
11 reviews, 9 commits, 7 PRs in 3 years 1 month
Top skills
Score
benchmarking
10
microsoft
10
c-sharp
10

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13

David Britch
Microsoft at Microsoft
/
United Kingdom
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
MicrosoftDocs/xamarin-docs
147 reviews, 1179 commits, 409 PRs in 4 years 11 months
xamarin/xamarin-forms-samples
8 reviews, 465 commits, 294 PRs in 4 years
dotnet/docs-maui
379 reviews, 377 commits, 1378 PRs in 1 year 7 months
Top skills
Score
ios
10
aspnetcore
10
asp-net
10

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14

Craig Dunn
Android at Microsoft AI
/
United States
Rock Star
14 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
MicrosoftDocs/xamarin-docs
740 commits, 419 PRs, 2011 pushes in 2 years 5 months
xamarin/apple-api-docs
65 commits, 19 PRs, 26 pushes in 7 years 3 months
MicrosoftDocs/appcenter-docs
867 commits, 8 PRs, 1667 pushes in 5 years 8 months
Top skills
Score
webassembly
10
android-api
10
programs
10

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15

Rachel Kang
Product @ Microsoft at Microsoft
/
United States
Rock Star
TOP CONTRIBUTIONS TO PROJECTS
dotnet/maui
360 reviews, 109 commits, 67 PRs in 1 year 11 months
rachelkang/recipeSearch
2 reviews, 132 commits, 11 PRs in 2 years 3 months
xamarin/xamarin-macios
93 reviews, 104 commits, 40 PRs in 11 months
Top skills
Score
microsoft
10
app-platform
10
android
10

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16

Charles Petzold
Software Quality Assurance Engineer at Microsoft
/
United States
Rock Star
10 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
xamarin/xamarin-forms-samples
355 commits, 5 PRs, 279 pushes in 4 years 4 months
charlespetzold/xamarin-forms-samples
37 commits, 27 pushes, 4 branches in 3 years 10 months
MicrosoftDocs/xamarin-docs
36 commits, 12 comments, 5 issues in 6 months
Top skills
Score
urhosharp
10
xamarin-android
10
visual-studio-for-mac
10

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17

Eilon Lipton
Principal Group Software Engineering Manager at Microsoft
/
United States
Rock Star
12 years of coding experience
TOP CONTRIBUTIONS TO PROJECTS
dotnet/MobileBlazorBindings
4 releases, 17 reviews, 563 commits in 3 years 2 months
dotnet/aspnetcore
1 release, 84 reviews, 225 commits in 7 years 5 months
MicrosoftDocs/mobile-blazor-bindings
1 review, 103 commits, 16 PRs in 2 years 9 months
Top skills
Score
httprequest
10
webforms
10
garbage
10

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