Well, color is yellow (RGB: 242, 232, 21). Color was fetched with Paint; it may be that GIMP would show slight different values.
I am certificated .NET programmer working in this region since 2002. Main specialization is back-end programming: SOAP, WCF services and Data processing on MS SQL server. I have 5 years endless practice with ASP.NET (WEB Forms and MVC). Here are answers to your requirements:
1. SQL - my main tool T-SQL on MS SQL database; MySQL is well me known because of minor differences from MS SQL,
2. Visual Studio - I am working with VS 2010 and VS 2012 (depends client's project) - VS 2008 is slight forgotten,
3. WEB services - main target is WCF and WEB API REST services, support services on PHP is possible but I have small practice here (was working with CodeIgniter only),
4. JavaScript tools: MS AJAX library, jQuery and Knockout,
5. Agile - depends on what you have in mind: I am using TortoiseGit, TortoiseSVN but I am sure that working out large projects without projecting modules in UML and carefully designed relations between modules leads to failure of the project in total.
6. English language - here it is, you can estimate the language. I know it is not perfect (I am speaking in Russian and Lithuanian) but American an Australian employers did not complain on language. Working on project I'll accept written directives only - had too many cases of reworking modules after employer's thesis: " I haven't said that".
I will need one week for installing and testing your project before saying what goes wrong and where code would be modified. Bid is calculated for rate $12/hour, 20 hours working week. Strict estimating I will be able to supply after the testing phase.