Networking and Cyber Security Help

My network needs a thorough review from a seasoned security professional. I want to be sure every device, service, and connection is configured for maximum protection, whether that means validating my current setup, tightening firewall rules, or deploying fresh defences entirely... (Budget: $250 - $750 USD, Jobs: Computer Security, Internet Security, Linux, Network Administration, Network Monitoring, Network Security, Penetration Testing, Security Auditing)