Freelance .NET Developer

Full time freelance developer, based in Nottingham, UK, available during normal office hours. Extensive commercial experience with ASP.NET & Microsoft SQL Server.



Fluent in c# and confident working with enterprise scale systems. Previous sites have included high traffic "storefronts" receiving 1.5 million unique visitors a month. Application performance and security are of particular interest.

Microsoft SQL Server

I have worked with SQL Server since version 6.5. Past projects have included TeraByte databases with billions of rows. I am a Microsoft Certified Database Administrator (MCDBA) and believe a well thought-out database is as important to the success of an application as the design of its business layer.

HTML, JavaScript

I've had exposure to several JavaScript frameworks and have a few favorites. My work in web development predates off the shelf controls, so I am familiar with the underlying technologies and can build from scratch required.


I am experienced in working with designers and "wiring up" their HTML into an application. I understand HTML and CSS so I know how to create apps that are easily "skinnable"


I've been programming full time in various commercial environments for 20 years.



I graduated in 1996 with a 2:1 in Software Engineering.

Certified Professional

My certifications include CEH, CASE.NET, MCSD, MCBDA, MCSA. Verification codes available on request.


My full CV can be downloaded here.


I work standard UK office hours and can be reached on 0115 871 2783 or 07811 561 543. My email is john.croasdale {at}
New projects are usually quoted at a fixed price. Once we get to know each other I can work on or off site at my hourly rate, or I can continue to work at fixed prices.
My standard terms and conditions are here. They can be modified to suit your business if required.
LinkedIn has some client testimonials.

Availability for 2020

Currently involved with several "full stack" support and development projects for a handful of excellent long term clients.
I'm happy to connect with anyone who has non urgent requirements in the .NET/SQL space who might benefit from my experience and skills.