Web development: TypeScript/Angular2 specialist needed

Hello all, We are a company creating software to design forms, which can be rendered (embedded) on external applications. We've developed a generic 'form specification' which can be interpreted by our rendering module. Our application is made of a backend (administration panel) and a frontend (the form rendering module). The technologies we're currently using are: - Angular2 - TypeScript - Web API - C# ... and (ofcourse) HTML5/CSS3. We are a team of three software developers working dedicated on the backend. We've already been working on a basic Angular2 portal with login functionality and also basic rendering/designing components. We need to add several functions in the upcoming months. Functions such as: - Form designer component - Form rendering component - Complex validation on forms - Configuration of validation in the backend - Versioning of forms and the ability to render older versions - Dashboards, charts & UI components - Authorization, user management & role configuration To give an idea what we want to design in a Form, here is a list of items which can be used in our form specification: - Pages - Sections - Headers - Labels - Several form controls, like; string/integer/checkbox/radiobutton/datetime/slider/option list/data collection (not an exclusive list) - Conditional rules (to be able to configure 'IsRequired', 'IsVisible' etc. based on conditions like the input of another field) For every form item, several specific properties can be set. An integer has min and max values, an option list can be configured with a default value, regex validation can be set on string inputs, etc. We want to build a visual form designer with Javascript/HTML5/CSS in our backend. We are looking for a dedicated 'frontend'-developer, someone who is experienced with TypeScript and Angular2 and is able to build the things mentioned above. We supply the services who expose business logic which you can consume with the portal application. We already have a Portal application in which you can start working. We have a good understanding of Angular2/TypeScript and we are also available in case you have questions concerning your work. Please do not react if you have no understanding of TypeScript or Angular2! A practical note; we're searching for +/- 3 days per week, preferably on wednesday, thursday and friday. If you place a bid, please tell us something about your experience with Angular2/TypeScript/frontend development in general and other similar projects which you have done. If you have experience with C#, please tell us something about that too! Last: If you place a bid, please start with xyz123. ;) IMPORTANT: Please note that I'm looking for Angular2 (& TypeScript) skills, so not Angular1!! Also, I'm not interested in PHP, Joomla, WordPress, Shopify, CodeIgnitor, Magento, etc. So please don't bother me with that stuff!