The most fundamental requirement for a Skilled Worker Visa is a valid job offer from an approved UK employer. The employer must be licensed by the UK Home Office to sponsor international workers. To verify if the employer is eligible, applicants can check the official list of licensed sponsors on the UK government website. The job must also be genuine and meet the skill level criteria set by the government, typically requiring a job at or above RQF level 3, which is equivalent to A-level qualifications in the UK.