Somalia → United Kingdom: Skilled Worker visa

Your current passport, or other valid travel documentation, to apply with.

Source: UK Home Office, Skilled Worker visa: documents you'll need to apply

£285 for a partner, £315 for your first child, and £200 for each further child, held the same way as your own funds (at least 28 consecutive days, ending within 31 days of applying).

Source: UK Home Office, Skilled Worker visa: your partner and children

You must show £1,270 available in your bank account, held for at least 28 days in a row, ending no more than 31 days before you apply. You don't need to prove this if you've already been in the UK with a valid visa for at least 12 months, or if your employer certifies on your Certificate of Sponsorship that they'll cover your costs for your first month, up to £1,270.

Source: UK Home Office, Skilled Worker visa: how much it costs

Your UK employer must hold a Home Office sponsor licence and give you a Certificate of Sponsorship reference number, confirming your job, occupation code, and salary. Your job must be on the eligible occupations list and pay at or above the required rate, how much depends on the type of work and the date you got your CoS.

Source: UK Home Office, Skilled Worker visa (overview)

If you're applying from outside the UK for a job in education, healthcare, therapy, or social services (for example a teacher, nurse, doctor, psychologist, or social worker), you need a criminal record certificate for every country you've lived in for 12 months or more (continuously or in total) in the last 10 years, while you were 18 or older. If a country doesn't issue certificates, you must show evidence you tried to get one.

Source: UK Home Office, Skilled Worker visa: criminal record certificate

A marriage or civil partnership certificate for a partner, or a birth certificate for a child, plus identity documents for each dependant.

Source: UK Home Office, Skilled Worker visa: your partner and children

You must show you can speak, read, write and understand English at CEFR level B1, using a UK school qualification, a degree taught in English (a UK degree, or a foreign degree checked by Ecctis), or a Secure English Language Test (SELT) pass. You don't need to prove it if you're a national of an exempt country, or you've already proved your English in a previous UK visa application.

Source: UK Home Office, Skilled Worker visa: knowledge of English

Your country is on the Home Office TB test list. You need a TB test certificate if you're coming to the UK for 6 months or more and you've lived in a listed country for 6 months or more, and were living there (or in another listed country) within the last 6 months. It depends on where you've lived, not only your passport. The test must be done at a clinic the Home Office accepts, and the certificate is valid for 6 months from the date of your X-ray.

Source: UK Home Office, Countries where you need a TB test for your UK visa application