Developer · Cheltenham
Henry Northen
I build and look after web products, mostly in .NET. Here are a few of them.
Open to remote software engineering roles·Résumé →
Selected work
2017 — present-
The world's leading equestrian recruitment platform. I've developed the .NET web platform and APIs since 2017, and cut Azure costs by over half.
Visit site →No. 01YardandGroom
yardandgroom.comDeveloper & maintainer · 2017–present
- C# 67%
- Razor 24%
- TypeScript 6%
- SCSS 3%
Built with: ASP.NET Core/EF Core/SQL Server/Redis/Azure Functions
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YardandGroom for iOS and Android, launched May 2026. I led delivery as sole developer and project manager, building it with agentic AI tools, then owned testing, release and maintenance.
View on the App Store →No. 02YardandGroom App
iOS · AndroidSole developer & PM · 2026 · 2,000+ downloads
- TypeScript 97%
- HTML 2%
Built with: React Native/Expo/Expo Router/NativeWind/Reanimated/Push notifications
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Reads market structure across every timeframe, checks it against your own ordered conditions, and alerts you on Telegram when they line up.
Visit site →No. 03Northen Trading Labs
northentradinglabs.comDeveloper · 2020–present
- C# 72%
- Razor 21%
- JavaScript 3%
- TypeScript 3%
- Other 2%
Built with: ASP.NET Core/EF Core/SQL Server/Redis/Azure Service Bus/Azure Functions/Stripe/MQL5
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AI personal assistants who message you first: morning check-ins, goal tracking and gentle follow-ups, all inside Telegram.
Visit site →No. 04Arthur & Juliette
arthurandjuliette.comCreator · 2024–present
Languages not measured
Built with: Astro/Vercel/Telegram Bot API
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A configurable job board for ranch work in the U.S.A. and beyond, with branded configuration, categorised search and a hand-coded Stripe integration.
Visit site →No. 05Ranch & Wrangler
ranchandwrangler.comSolo build · 2025
- C# 57%
- Razor 43%
- CSS <1%
Built with: ASP.NET Core MVC/EF Core/SQL Server/Redis/Stripe/PayPal/Azure Blob Storage
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A Tibia-inspired browser MMO, engineered for one huge persistent world and thousands of concurrent players.
The server runs from my own PC for now, so it's only online now and then.
Play when online →No. 06Emberfall
150-230-123-86.sslip.ioCreator · 2026
- Rust 73%
- JavaScript 20%
- HTML 4%
- CSS 3%
Built with: WebAssembly/Tokio/Axum/WebSockets/Binary protocol · LZ4/SQLite
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Like Google, but for food and nutrients. Search nutritional profiles, see daily intake targets and track your diet.
Visit site →No. 07foodle.health
foodle.healthCreator · 2026
- JavaScript 99%
- CSS <1%
- HTML <1%
Built with: React/Vite/Tailwind CSS/React Router/Vercel
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A community habit tracker. Join habits others are already doing, log your reps and cheer each other on.
Visit site →No. 08100 Reps
100reps.appCreator · 2026
- JavaScript 87%
- PL/pgSQL 12%
- CSS <1%
Built with: Next.js/React/Supabase/PostgreSQL/Tailwind CSS/Vercel
About
For nearly nine years I've developed and maintained YardandGroom, the equestrian recruitment platform, alongside a handful of products of my own.
What I enjoy most is the start of things: brainstorming features, exploring new ideas and solving the problems that turn them into something real. I work hand in hand with AI tools to move fast, but the direction, the testing and the final say stay with me.
Off the clock, I'm usually making things with AI, travelling, running, spending time with family, or blundering my queen at chess.