To apply, see here.

You mentioned that your company will be sponsor your trip. No real need for a letter from your employer. The account has to be maintained for more than three or six months. That would mean that it is a business visit visa. Standard Visitor visa : Documents you must provide - GOV.UK As you have only recently started work then I suggest explaining this in your sponsor's letter to show why previous bank statements have a low balance and including pay slips to show your current income.

If you are applying for a TOURIST visit visa, then you will need to show a healthy bank balance. You will require a letter from your company confirming that all expenses will be covered by them. the required money must have been in the bank account for a consecutive 28 day period. If you are going to apply for a UK travel visa from Pakistan then you must have more than 28 days of money in your bank account. Apply for a Standard Visitor visa if you want to visit the UK for business, leisure, to get private medical treatment or donate an organ. You must show the money using bank statements and/or a letter from a financial sponsor and/or receipts. How much bank statement for UK visit visa from Pakistan. bank statements must cover 28 days (and printed no more than 31 days before the date of your application). You may find UK visit visa basics helpful. In case the sponsor is a friend or a family member then the sponsor must demonstrate that he/she has ample financial and economic resources that in addition to supporting the applicant’s visit to the UK, the sponsor can adequately support himself/herself and his/her dependents. UK Visitor Visa Sponsor Bank Balance. Bank statements.