What is the best HR automation system in the market and why?

It's great that this employee has been transparent about the fact another company wants him. The problem is that this employee is ambivalent about his connection to your Company. Really, under 100 employees at least, this is unacceptable. I would first reflect on why you think he's looking elsewhere. Then, I'd ask him that, admitting that you have failed to create an environment in which he has stayed engaged and motivated on what he's working on. If his answers seem reasonable and you can commit to making the changes necessary, then you won't need an employment contract, he'll stay on his own desire, because you listened to him and improved his situation. If his requests seem unreasonable or you know you won't be able to make those changes, fire him *today.* This situation can contaminate your entire company quickly. Yes, swapping someone out will always be a bit of a setback, but you want *everyone* on your team, feeling motivated and excited by what they're doing. It sounds like you're making your decision out of fear (having to find and hire another engineer) versus what's best for the Company, long term. Happy to talk to you in a call. Problems like this are within the sweet spot of my skills and passion.

I've had great experience as a user of Udemy and write my own courses but offer those privately for my clients. It's always better to build a course that answers a specific need. Think about the avatar for your business. You can't meet everyone's needs. Build a course with no more than 8 segments or modules with 4 - 8 learning segments within each module. You will allow the user to achieve rapid and measurable results by completing each section and ending each module with an assessment (quiz) that further validates learning the skill. Udemy is easy to use so you will have a broad audience looking for specific needs.

"What was the best part of you day?" Ideally you could ask in the afternoon .. but it sets a positive intention. I ask this to all my friends + wife everyday when I see them.

It stands for allowing someone to continue doing or use something that is normally no longer permitted (due to changing regulations, internal rules etc.)

https://www.filepicker.io/ is the best thing that you can integrate with this app which suits your requirement. If you are the owner of the app, you can integrate it very quickly. If not, you can suggest the app owner to do it Feel free to call me if you need more clarification. I am consulting architect for few companies in US and India on mobile, web and windows/linux/mac apps.