James Charlesworth

James is a Director of Engineering, O'Reilly author, speaker, and YouTuber with 20 years of experience in the tech industry. He has worked across startups and publicly listed tech companies, helping to build and scale software products. James focuses on teaching product skills to engineers, building high-performing product engineering teams, and defining the "Product Engineer" career path. He shares practical advice on software engineering, product development, and career growth through his Train to Code YouTube channel.

What's New

Getting Started: Building .NET Applications on AWS
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Getting Started: Building .NET Applications on AWS

Learn how to build and deploy .NET applications on AWS using CDK, Lambda, DynamoDB, S3, and more.

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What's new in C# 14
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What's new in C# 14

This guide covers every new C# 14 feature, explains its benefits, and provides practical code examples to help you navigate how you can use them.

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Let's Build It: AI Chatbot with RAG in .NET Using Your Data
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Let's Build It: AI Chatbot with RAG in .NET Using Your Data

Build a Retrieval-Augmented Generation (RAG) chatbot that can answer questions using your data.

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From Zero to Hero: SignalR in .NET
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From Zero to Hero: SignalR in .NET

Enable enterprise-grade real-time communication for your web apps with SignalR.

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Deep Dive: Solution Architecture
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Deep Dive: Solution Architecture

Master solution architecture and turn business needs into scalable, maintainable systems.

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Migrating: ASP.NET Web APIs to ASP.NET Core
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Migrating: ASP.NET Web APIs to ASP.NET Core

A step-by-step process to migrate ASP.NET Web APIs from .NET Framework to ASP.NET Core.

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Getting Started: Caching in .NET
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Getting Started: Caching in .NET

Let's make the hardest thing in programming easy for .NET software engineers.

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From Zero to Hero: Testing with xUnit in C#
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From Zero to Hero: Testing with xUnit in C#

Learn how to test any codebase in .NET with the latest version of xUnit, the industry-standard testing library.

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Create a ChatGPT Console AI Chatbot in C#
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Create a ChatGPT Console AI Chatbot in C#

This walkthrough is your hands-on entry point to create a basic C# console application that talks to ChatGPT using the OpenAI API.

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