Hello!
I would like to help you with this task. Can you explain me more about your task? What VPN do you use? What exactly traffic do you need to route via VPN and aroung VPN?
About my experience: I have big experience with network administration (VLAN, SNAT, DNAT, iptables, iproute2, multiWAN, tcpdump...). Big experience with pfSenses, OpenVPN servers/clients. Serial connection 2,3 servers for more security. OpenVPN over IPv6 and other.... Experience with VMWare ESXi, MS Hyper-V, Proxmox VE, Mikrotik, Ubiquiti and some different skills.
My another skills and reviews you can see in my profile.
Hope for cooperation!
Thank you!