If the plans to stay in Singapore for more than six months, then you need to take care of all the documents that will allow you to legally be in the country. Of course, you can try to get a visa for six months or for a year, there were cases that ordinary mortals managed to do this, but most often the visa is issued no more than 5-6 weeks.
How to move to Singapore? It is important before leaving, decide in what status you will live there, invited to work, etc. D. After your actions: preparation of documents, sending them to the Singapore company. After receiving an answer, invitation, you need to get a visa. After arriving in Singapore, it is important to fill in the DISEMBARKATION CARD, the form will be given on the plane, it can also be taken at the airport. After passing visa control, the roots from these forms are handed over to the MOM. There, together with all the documents, after checking and putting seals in the passports, “Green Cards” are issued, which must always be carried with you, since they are a personality certificate.
You also need to take care of housing in Singapore, you need to rent an apartment in advance or book a hotel. In addition, in Russia you can contact any company that specializes in such issues.