Certified Huawei routing and switching expert

Story
We have two Huawei stacking switches (S6720-52X-PWH-SI) in production as core switches connected with two Mellanox Switches (MSN2100-CB2F) and one access switch Netgear (M4300-52G-PoE+), Huawei switches are connected with two pfSense firewalls
All connections between all switches and between the core switches and the firewalls through LACP.
Servers connected to Huawei switches through LACP
We have connection problems between Huawei switches and servers and discarde packets on eth-trunk interfaces

All servers attached to the Mellanox switches are Windows 2019 Datacenter services who operate as a Hyper-V failover cluster and as S2D

All other servers are Windows 2016 or 2019 servers.

Goal:
We are looking for certified expert with Huawei switches and expert with pfSense firewalls and have experience with Mellanox Switches to check the configuration on our network devices, troubleshoot the connection problems and upgrade Huawei switches.

Requirements:
1. Certificate required HCIE-Routing & Switching
2. Experience with Mellanox Switch and pfSense firewall
3. Note that we require a signed Non Disclosure Agreement (NDA), Confidentiality Agreement and a copy of your passport / identity card

Your offer includes:
1. Any relevant certifications
2. Any relevant experience