build e signature web app

I am looking for a skilled freelancer to build a sophisticated e signature web app for me that is compatible with desktop devices. I have a specific design in mind and I require an advanced level of security. The web app must be built with the highest level of expertise and accuracy, and must abide by the latest technological standards and security trends. The successful freelancer must have experience creating similar web apps and be able to provide flawless and modern solutions with a high level of attention to detail.