To secure a work permit in Greece, it is essential to first receive a job offer from a Greek employer who will serve as your sponsor. You must gather all necessary documentation, including a valid passport, recent passport-sized photographs, your signed employment contract, and any relevant educational and professional qualifications. Complete the visa application form provided by the Greek embassy or consulate and remit the required application fee. Submit your finalized application along with the supporting documents to the Greek embassy or consulate in your home country, or to the Greek immigration office if you are already present in Greece. Depending on the type of visa you are applying for, a medical examination may be required. Once your application is approved, you will be issued a work visa, allowing you to travel to Greece. Upon your arrival, if necessary, apply for a residence permit and obtain a social security number. It is advisable to consult with Greek authorities to ensure you are aware of the latest requirements and procedures.