I think invest BTC simply by joining to companies that use this forum, when we have joined and already completed post mission, we will automatically in salary by our company follow.
My main advise right now is to learn how to trade bitcoin. It maybe risky however the benefits and risk compared to so called bitcoin companies are minimal. Offcourse it's wise to diversify. Which means, put 30% in trading and the rest in bitcoin or a top 100 altcoin.