她上一个公司从行销到财务，实际上都是她在运作的。

the role of adminstration and financial affairs of the previous firm is runned all by her.

She managed from sale to financial affairs by herself in her last company.

She is the one who actually run the business from sale to finance of his last company

Actually ， she is in operation from marketing to finance in
her last company。

Actually she operated both marketing and finance in her last company.