OPC UA Security consultation

Please read everything before responding. We need EXPERT advice on how to configure security for OPC UA Client and server. This includes explanations of how to set up Security Modes and Certificates. We have the server and client working without security but failing when security is used. There is no coding necessary, just configuration. The budget for your services is flexible. We expect a week time of delivery from you after the award. no upfront. RESPOND ONLY IF YOU ARE CONFIDENT ABOUT SUCCESSFULLY COMPLING THE TASK. Feel free to ask questions.