David Christiansen
I started in graphic design, ended up in software, and spent thirty-odd years somewhere in between — shipping code, securing systems, and figuring out how to make cloud infrastructure do what it's told.
I don't know everything, but I know enough people to find someone who does. Identity, cloud, DevOps, security — I've gone deep on all of them. This site is where I write about what I've picked up along the way.
Areas of Expertise
Cloud Architecture
Designing and delivering scalable, resilient solutions on Azure and AWS with a focus on well-architected frameworks.
Security & Identity
Deep expertise in OAuth 2.0, OpenID Connect, and federated identity. Formerly a core contributor to IdentityServer and DotNetOpenAuth.
.NET & Software Engineering
Long-standing experience with ASP.NET, C#, and the broader .NET ecosystem, from framework-level libraries to enterprise applications.
DevOps & Platform Engineering
Building CI/CD pipelines, infrastructure as code, and platform tooling to accelerate delivery and improve reliability.
Containers & Orchestration
Containerisation with Docker and orchestration with Kubernetes for portable, scalable workloads.
Solution Architecture
Bridging business requirements and technical delivery, producing architectures that are pragmatic, secure, and maintainable.
Get in Touch
Interested in working together, or just want to say hello? Head over to the contact page to find the best way to reach me.
Contact me