CGNAT Implementation on Ubuntu

I'm seeking an expert to implement CGNAT on Ubuntu 20.04 with a generic kernel (5.4-225).

Essential features include:
- Logging and monitoring
- High availability
- IPv6 support

Ideal skills and experience:
- Strong knowledge of CGNAT and NAT principles
- Experience with Ubuntu and kernel configurations
- Familiarity with logging/monitoring tools
- Expertise in high availability setups and IPv6 integration

Please provide your experience and approach.