You have a new job and do not want to go without anything
Some employees who feel bad about their business or want to move to another company spontaneously give their resignation. This approach often seems to be the only way to join a new company. However, in doing so, the employee takes a number of risks his career and his professional life. Indeed, when he joined a new company, the employee generally has a trial period during which it may take a lot.
First, the company can unilaterally terminate the contract without further explanation. In addition, the trial usually lasts four months, renewable once. That makes a total period of eight months for executives, during which the company can reorganize, the project for which you were hired to be stopped, the person who hired you to be mutated or decide to leave the company, etc.
Therefore, you represent a risk. So you had a job at a previous company, you find yourself at risk, regardless of your will. It should also consider the fact that in case of resignation from your previous company and if your trial period would be broken, the unemployment benefits of profit can be extremely tricky.
In other words, when you leave your previous employer and are about to join a new company in the greatest happiness, you put yourself at risk possibly to the point of losing everything. How to reduce the risk?
You can negotiate the duration or removal of the trial period as part of your new contract. However, this is not given to everyone and would rather reserved for a category of employees of executive level.
The alternative is to try to negotiate your starting your current company. This will ensure a minimum of financial capital to, if necessary, help you bounce back in case of problems with your new employer. With this solution, the separation does not pass through resignation, but such a conventional termination will guarantee your rights to unemployment benefits in case of problems with your new employer, probably with a time constraint.
Now the problem is how to get your employer to offer a negotiated departure and especially how to do it in a very short time, knowing that you need to join a new company.