Hello.
I am George.
I am very happy to see such project in freelancer site. I have really rich experiences with OpenStack cloud.
As for nova, cinder, swift, neutron, magma, marnila, murano, karbor and so on, I really have much much experiences and knowledge. I designed and developed the backup system based on OpenStack swift (Object storage) , NFS, GlusterFS and Ceph so as for storage, network and host design really no problem. I used OpenStack Rocky & Stein version.
You can test my knowledge on the spot over chat.
Contact me.
Regards.