A website that offers gamut of features for users to manage their career effectively.

I am looking to create a website that offers a complete set of features to help users manage their careers. This project is for starting a new enterprise and will require high user interactivity with forums, chat, and complex features. I am open to suggestions regarding technology stack. A well-designed web platform with intuitive navigation, graphic interface, and smooth-functioning backend system is a must. Looking for someone with a track record in developing websites with high user interactivity. There are going to features that are AI driven and help users with insights that they can use to stay abreast of the times. The ideal candidate should have a wide range of experience developing robust software solutions in various technologies. Expertise in JavaScript, HTML/CSS, Ajax, Database design, AI/ML ,integrity, optimization, unit/functional and regression testing is a bonus.