Andrew Casey @andrewcdn
Seattle-area software developer. #aspnetcore Redmond, WA Joined May 2014-
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#fsharp folks, nullability question, there's the following code, and by contract ReadLine() returns `string | null`, but null is only valid value at the end of the stream. C# deals with this problem with `!` postfix operator. How would you imagine #fsharp should make this work?
It freaks me out how unreliable the search has become in Visual Studio. That's one of the few areas it is *not* acceptable to mess up.
✨ @Microsoft's New Future of Work Report just dropped, and it's overwhelmingly focused on how AI impacts every aspect of information work. Adding some highlights below, but strongly recommend taking a look through the slides! aka.ms/nfw2023 📓 TL;DR - information…
Opinions on end-to-end tests for app features that use AI. Do you let your E2E tests rely on calling OpenAI APIs, or fake the responses? I’d prefer it to test my real prompts by calling real APIs but wonder how many random build failures I’ll get.
It has become a tradition to publish a blog post about new interesting changes in networking space with new #dotnet release. This year, .NET 8 brings improvements in HTTP space, newly added metrics, new HttpClientFactory APIs, and more! 🏎️ devblogs.microsoft.com/dotnet/dotnet-…
I'm very excited and honored to share that I have become the first member of the community triagers group for the .NET Aspire project. I want to thank the .NET Aspire team for this opportunity. github.com/dotnet/aspire/… #dotnet #aspnetcore #aspire #github
If you are interested in learning how to ensure your .NET library works with native AOT, check out this post. devblogs.microsoft.com/dotnet/creatin…
Today we released TypeScript 5.3! Now bringing: - new narrowing improvements - more correctness checks - import attributes - handy new editor features - lots of optimizations and lots more! So try it today! devblogs.microsoft.com/typescript/ann…
Heads up .NET Twitter, I'm jumping to a new team soon outside of AspNetCore/.NET. I'll still be an AspNetCore customer and contributor. I've got to go YARP all the things.
.NET 8 launch and .NET Aspire reveal day. In the last couple of months, a bunch of us built the Aspire dashboard. I focused on telemetry: logs, tracing, and metrics. It's 8+ years since I've worked on a real app. Really happy with how it turned out! devblogs.microsoft.com/dotnet/introdu…
James built the logs, metrics and distributed tracing view in the aspire dashboard. Fun story, James went dark for a week and blew everyone's minds with the distributed tracing viewer. I think he knows how to center a div...
James built the logs, metrics and distributed tracing view in the aspire dashboard. Fun story, James went dark for a week and blew everyone's minds with the distributed tracing viewer. I think he knows how to center a div...
For .NET devs, @msftorleans gives you this. Efficient in-proc calls when you're in-proc, fast RPC when you're not. Orleans is battle tested, modern, and used in-production for some of Microsoft's largest svcs. It goes further, supporting versioning, rolling upgrade, & much more
C++ team is hiring in Prague! You can apply here: jobs.careers.microsoft.com/global/en/job/…
Blog post: Debugging enhancements in .NET 8 devblogs.microsoft.com/dotnet/debuggi… Read about the debugging improvements coming to popular .NET libraries and APIs: 🌏 HttpContext and friends ⚡️ WebApplication and hosting 🎨 MVC and Razor Pages 🚀 gRPC ⚙️ Configuration 🏷️ Logging
And action! 🎬📽️ We're thrilled about TypeScript Origins, the TypeScript documentary from @kbdocumentaries! Check it out!
TypeScript 5.2 is now here! 🎉 Now faster with - 'using' & explicit resource management - decorator metadata - easier tuple type notation - better object completions - the inline variable refactor - clickable inlay parameter hints and more! Try it today! devblogs.microsoft.com/typescript/ann…
Big news! Someone finally noticed that if you hold down CTRL, the process list in Task Manager conveniently freezes so you can select rows without them jumping around. I did this so you could sort by CPU and other dynamic columns but then still be able to click stuff...
Today we’re releasing TypeChat (microsoft.github.io/TypeChat/blog/…), an open source project that uses AI to bridge between natural language and application schema and APIs. It uses TypeScript in novel and interesting ways. Check it out and let us know what you think. @typescript
I’m super excited to be speaking about arethetypeswrong.github.io at #TSCongress. You can register and watch the live stream for free :) See you September 21 & 22! (My badge seems to have a random snippet from my conference bio, and it’s... too perfect 😂) portal.gitnation.org/badges/typescr…
@MasterDevwi @SpotifyUSA I think this explains it, but it’s still messy community.spotify.com/t5/Accounts/Al…

Jared Parsons @jaredpar
15K Followers 713 Following Work on compilers and languages. Creator of VsVim. He/Him #BlackLivesMatter
Rob Palmer @robpalmer2
10K Followers 2K Following JavaScript Infrastructure & Tooling at Bloomberg. Co-chairing @TC39. Likely to tweet tech stuff about JS & software performance. Opinions are my own.
John Reilly ❤️�... @johnny_reilly
1K Followers 1K Following Open Source Software Engineer ❤️🌻 https://t.co/j4dhTqmNI4 https://t.co/jEqtnmCV0q OSS, blogs & talks TypeScript | ts-loader | DefinitelyTyped | C# | Azure
Josh Goldberg 🦋 @JoshuaKGoldberg
10K Followers 2K Following Strongly prefer https://t.co/F6CfH0xOGo 🦋 👨💻 @tseslint, @geteslint, etc. 👪 @BosTypeScript 🪸 @SquiggleConf ✍ @LearningTSBook 🌟 Microsoft MVP 💌 TC39 Invited Expert
Christian Gunderman @chgunderman
780 Followers 2K Following Principal eng. on GitHub Copilot Coding agent @Microsoft Previously on GitHub Copilot for VS, Code indexing, VS Mac, VS Husband + 2 x 🐶 dad
Kirill Osenkov 🇺�... @KirillOsenkov
9K Followers 505 Following Developer tools at Microsoft. .NET, C#, Roslyn, Visual Studio, Editor, WPF, MSBuild, MEF. https://t.co/oznJRNdBWD
Kevin Pilch @Pilchie
7K Followers 755 Following Marathon runner, beer drinker, chocolate chip cookie lover. Father. Group Manager for CosmosDB DevExp at Microsoft. Born 🇨🇦, Seattle since 2002. he/him
Ryan Cavanaugh 👉 s... @SeaRyanC
9K Followers 385 Following Engineering lead for @typescript. Now at https://t.co/uvEAuNf1VJ
.NET @dotnet
337K Followers 855 Following Free. Cross-platform. Open source. A developer platform for building all your apps. Official handle of the .NET team at Microsoft.
Anthony D. Green @ThatVBGuy
786 Followers 121 Following Current VB enthusiast & vigilante. Former Language Designer & PM for https://t.co/ksPXhzpFV4 @ Microsoft. Support me on Patreon: https://t.co/PCbWMoz2PR
Konrad Kokosa @konradkokosa
14K Followers 5K Following AI/LLM Agents Team Lead at @nethermindeth • Pro .NET Memory book • .NET MVP • @crowdpub_org founder • one of @dotnetosorg • skeptical fan of web3 • AFOL
Julien Couvreur @jcouv
2K Followers 283 Following C#/VB language designer and compiler dev at Microsoft (Roslyn). All comments and mistakes are mine; I do not speak for my employer.
♦ ereliuer eteer �... @ereliuer_eteer
4K Followers 628 Following
Mateusz Burzyński @AndaristRake
8K Followers 406 Following programmer but also a little bit of code-poet wannabe, maintaining XState, Emotion, redux-saga & more, OSS enthusiast
Matiss Janis Aboltins @mjadotlv
15 Followers 19 Following
dsneedy @dsneedy2
904 Followers 5K Following 22 | #RaiseHail | #ripcity | NFL fan| NBA fan|jersey collector| Gonzaga University grad |Computer Science 💻| Cyber Security | Purple Team | crypto investor
Anshuuuuul @MonkSigma
62 Followers 1K Following Being Salty | Software Engineer | 24👽 | Views are forced!
bat @BalmantRafael
47 Followers 434 Following
Jay Lee @jay_lee_it
87 Followers 1K Following Founder, CEO & CPO of VENDIT Inc. We take care of every aspect of hotel property operations and sales — from A to Z. Raised $7 million in our Pre-A round.
Sangbeom Lee @IamSangbeom
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Ravindra Vairagi @vaishnavravi33
125 Followers 6K Following Full stack developer with expertise in https://t.co/5mPvVjJOQc, .Net Core, Angular, API, SQL and SQL server. Blog: https://t.co/xMC2W3UQFR
Shanmugasundaram N @SoftwareDevEnt1
205 Followers 4K Following Reactjs || Software Engineer || Full-Stack Developer || Tech Enthusiast
Billy Abraham @billyAbraham_08
4 Followers 124 Following
Eduardo Mioto @eduardomioto
259 Followers 605 Following Entrepreneur and Husband. Interested in Cloud, Scalability, Software Architecture, Performance, Management and Leadership
Franklin @dev09franklin
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Catona @Catona72255867
57 Followers 1K Following
Luna @nakatatomo47669
105 Followers 7K Following
Bastien Gares @bastiengares
3K Followers 7K Following ML Engineer | Data Scientist @ Orange | Student @ Mines Paris PSL Executive Education & DataScientest | alumni MSc Computer Science @ Supinfo | math python rust
Hong Tan @HongtanDev
4 Followers 217 Following
Alexis Gonzalez @AlexisG61989624
3 Followers 150 Following
Sa @webdevjk_
7 Followers 736 Following
Sakibull Hassan @SakibullHassan
82 Followers 1K Following ❋ Website & Product Design for B2B AI SaaS
Tarek Meslameni UX de... @TarekMeslamani
226 Followers 7K Following I'm sort of an #artist, kinda a #designer, I'm just here to make things look #pretty and #functional 💫
MD FAZAL @mdfazaldev
12 Followers 400 Following
sVB Kid programmer (b... @mhmd_hmdy
364 Followers 268 Following sVB is a language for kids and beginners built on Small Basic, with a form designer, mini WinForms and evolved compiler to be an easy way to learn VB .NET.
Nathan Bierema @NathanBierema
665 Followers 161 Following Technical lead at @paragontruss. Maintainer of @ReduxDevTools. Co-maintainer of react-select and immutable-js.
Fr13nds-T34m @jgonzalesjc
143 Followers 2K Following Engineer Security, Senior Programmer, Artificial Intelligence, Data Loss and you friend ...
Brad Zacher @bradzacher
666 Followers 366 Following Computer scientist Cider drinker Dungeon Master @TSESLint Maintainer Software Engineer @Canva (prev @Meta) @[email protected] bsky https://t.co/lJj9MJcOyE
Mahmoud Imam @MahmoudImam22
1 Followers 426 Following
coca-cola death squad... @prolestep
19 Followers 260 Following baby security - dtv - got a family to feed
coffee @coffeexcoin
21K Followers 4K Following I like building smart contracts & APIs | Solidity & Backend dev | BAYC #7436 | Contributor @AbstractChain
Full Stack .NET 👨�... @dotnetfolk
587 Followers 5K Following We are going to keep you updated about : .NET (C#) SQL Server AZURE Blazor Xamarin & MAUI ML. NET And ...... We ❤️ .NET !
Sanchari @unchilledbeer
9 Followers 288 Following living and dreaming ✨ my 9-5: ui dev | full-time bts fangirl 💜 sometimes i click, draw, and escape through doodles and divs 🧚🏼♀️
Adhishtanaka Kulasoor... @adhishtanaka
83 Followers 914 Following
Juliano de Oliveira @juliaojoa
8 Followers 845 Following
Miha Zupan 🇺🇦�... @_MihaZupan
459 Followers 561 Following Performance fan working on @dotnet @Microsoft Killing civilians is bad, actually @mihubot.xyz
Sami Gülen @SamiG42
52 Followers 4K Following
Ali_alshareef @Ali_alshareef92
45 Followers 592 Following "Dedicated to advancing computer science and software development to create a smarter, more connected digital society"
ghstmai1er @ghstmai1er
210 Followers 5K Following
🇦🇲 Artak @mkArtak
181 Followers 230 Following
David Fowler @davidfowl
139K Followers 1K Following Distinguished Engineer at Microsoft on .NET, Creator of NuGet, SignalR, https://t.co/PiydKAsC8g Core, Aspire and Barbadian 🇧🇧, Tennis Player, Father, other half @symonefowler
Scott Hanselman 🌮 @shanselman
321K Followers 10K Following VP of Developer Community @ MSFT - Code, OSS, STEM, Beyoncé, 🏴🇿🇼#T1D, #DevRel YouTube+TikTok listen to the @Hanselminutes inclusive tech podcast!
Jared Parsons @jaredpar
15K Followers 713 Following Work on compilers and languages. Creator of VsVim. He/Him #BlackLivesMatter
Christian Gunderman @chgunderman
780 Followers 2K Following Principal eng. on GitHub Copilot Coding agent @Microsoft Previously on GitHub Copilot for VS, Code indexing, VS Mac, VS Husband + 2 x 🐶 dad
Kirill Osenkov 🇺�... @KirillOsenkov
9K Followers 505 Following Developer tools at Microsoft. .NET, C#, Roslyn, Visual Studio, Editor, WPF, MSBuild, MEF. https://t.co/oznJRNdBWD
James Newton-King ♔ @JamesNK
40K Followers 60 Following Principal Software Engineer https://t.co/LE9LGGE2wk @Microsoft. Author of Newtonsoft.Json.
Ryan Cavanaugh 👉 s... @SeaRyanC
9K Followers 385 Following Engineering lead for @typescript. Now at https://t.co/uvEAuNf1VJ
Anthony D. Green @ThatVBGuy
786 Followers 121 Following Current VB enthusiast & vigilante. Former Language Designer & PM for https://t.co/ksPXhzpFV4 @ Microsoft. Support me on Patreon: https://t.co/PCbWMoz2PR
Damian Edwards @DamianEdwards
50K Followers 1K Following Architect on .NET at Microsoft 💘 craft🍻 malt🥃 good☕ fine⌚ 🇦🇺🏏 @Mariners ⚾ @seahawks 🏈 @F1 🏎 📺 https://t.co/WWMLL5pzIL #BLM 🇺🇦
Julien Couvreur @jcouv
2K Followers 283 Following C#/VB language designer and compiler dev at Microsoft (Roslyn). All comments and mistakes are mine; I do not speak for my employer.
Michal Strehovský @MStrehovsky
7K Followers 177 Following Moved to Bluesky - https://t.co/Y20BvEBfjl. The account also bridges to Mastodon at @[email protected]
Dustin Campbell 🇺�... @dcampbell
3K Followers 405 Following he/him - husband, father, nerd, programming language designer, jazz guitarist, coder, horror fan, metal head
Sébastien Ros @sebastienros
3K Followers 76 Following Developer on the https://t.co/qKRmcNtLdU team at Microsoft, working on Performance, Orchard, also maintainer of Jint, YesSql, Fluid, and Esprima .NET
Natalia Kondratyeva @carna_viire
91 Followers 52 Following Dev on @dotnet team 🦊 Opinions are my own. She/her.
Barry Dorrans @blowdart
24K Followers 1K Following language & fx security person at msft. Not speaking on behalf of Microsoft. Not here much at all because, well, everything
Microsoft Threat Inte... @MsftSecIntel
187K Followers 1K Following We are Microsoft's global network of security experts. Follow for security research and threat intelligence.
Glenn von Breadmeiste... @condrong
4K Followers 983 Following I work at Microsoft on the .NET team. Any opinions expressed here are my own.
Shay Rojansky @shayrojansky
5K Followers 186 Following Principal software engineer at Microsoft, working on .NET data access, Entity Framework and perf. Lead dev of Npgsql, the PostgreSQL provider.
Miha Zupan 🇺🇦�... @_MihaZupan
459 Followers 561 Following Performance fan working on @dotnet @Microsoft Killing civilians is bad, actually @mihubot.xyz
Karel Zikmund @ziki_cz
7K Followers 368 Following No longer here - @zikicz.bsky.social / Discord:https://t.co/OwAOMXYRGx SW Engineer on .NET Networking team at Microsoft. Hiring for .NET/DevDiv/MS.
Levi Broderick @LeviBroderick
4K Followers 1 Following Working on .NET security @ MSFT. Not speaking for MSFT. This account no longer posts content to Twitter. 🫡 See GitHub profile for links to other socials.
Amanda Silver @amandaksilver
26K Followers 5K Following CVP Developer Division @ Microsoft @code @VisualStudio @TypeScript @dotnet @JavaAtMicrosoft @Azure @AzureDevOps @OpenAtMicrosoft Engineering Systems @ MSFT 🌈☁️
Igor Velikorossov @IgorRussKie
546 Followers 190 Following .NET #winforms team @Microsoft. I code. I deliver. I have own opinions. In spare time I contribute to @git_extensions
Tanay Parikh @_TanayParikh
106 Followers 51 Following Open source software @microsoft working on #blazor
Reuben Bond @reubenbond
6K Followers 1K Following Distributed Systems, Databases, Cloud Programmability, .NET Aspire, @msftorleans @Microsoft
Rafiki Assumani @RafikiAssumani
373 Followers 954 Following Engineering Manager at @doordash- Ex @microsoft Ex @johndeere - @arsenal fc supporter - 🇨🇩 🇺🇸 - Opinions are my own.
🇦🇲 Artak @mkArtak
181 Followers 230 Following
Steve Sanderson @stevensanderson
25K Followers 94 Following Developer/architect at Microsoft on the https://t.co/SuGq9SmGUf Core team. Original creator of Blazor.
Safia @captainsafia
22K Followers 297 Following I help build @aspnet at @microsoft. Running and powerlifting in my spare time. Dream big and follow through even bigger.
Paul Vick @panopticoncntrl
1K Followers 79 Following Language/database/performance geek. Previously of Microsoft and Meta. @panopticoncentral.bsky.social @[email protected]
Stephen Toub @stephentoub
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Marc Gravell @marcgravell
24K Followers 780 Following C# fan; ex-MVP, ex-Microsoft, ex-Stack Overflow; author of Dapper, protobuf-net, SE.Redis, and a few other things. Doing Redis things at Redis.
Jon Skeet @jonskeet
63K Followers 638 Following Christian, husband (of @HollyKateWebb), father, feminist, software eng, author, @stackoverflow contributor. He/him. Mostly at @jonskeet.uk on Bluesky now.
SimpsonsQOTD @SimpsQuotesOTD
512K Followers 1 Following
Steve Carroll @ScareAll
3K Followers 2K Following Director of Development for .NET Platform team, formerly Dev Manager for the Visual Studio C++ and Debugger teams. I help make your dev tools!
Tim Misiak @timmisiak
8K Followers 280 Following OS/systems engineer. Worked on WinDbg for a while. I write about low level tech sometimes. On bluesky: @timdbg.com On mastodon/fediverse: @[email protected]
Maxime Chevalier @Love2Code
18K Followers 286 Following 💖 ➞ λ: CS PhD, into compiler design, programming languages, music, simulation, ML/AI, robotics. Follow me code code reviews, stock picks and dating advice.
John Cunningham @PolyglotJoC
2K Followers 480 Following CVP of Engineering for Platforms and Languages - .NET, C++, Java, Rust, Go and Python at Microsoft. One time Debugger Dev. Footy fan.
Wesley Wigham @WesleyWigham
165 Followers 26 Following
Alex Chi @chachachachiman
36 Followers 402 Following
Sheetal Kamat/Nandi @sheetalkamat
279 Followers 70 Following
Matt Bierner 🪦 @mattbierner
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durinmine @durinmine
105 Followers 67 Following
Gabrielle Crevecoeur @NoWaySheCodes
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Andrew Branch @atcb
3K Followers 646 Following Working on TypeScript at Microsoft. I appear when someone says “module resolution” three times in the dark. He/him
bsky.app/profile/orta... @orta
20K Followers 2K Following https://t.co/ry4yomoKGX. Making @PuzzmoToday. Ex @TypeScript. Ex-@ArtsyOpenSource. Paranoid with @DangerSystems. Aphantasic. He/Him.
Sana Ajani @sana_ajani
1K Followers 2K Following currently: Ops @elevenlabsio, MBA @chicagobooth || previously: product @google search 🔍 & @code 💻, cs @georgiatech
Mark Wilson-Thomas @MarkPavWT
2K Followers 2K Following Tadley Town Councillor. Retired Principal Program Manager for @Microsoft @VisualStudio. Educated Uni of York, UK. Looking to serve my local community of Tadley.