Zabbix Customization and Optimization

I'm need of a skilled Zabbix expert to enhance and update my Zabbix monitoring system
5.4 to 7lts update
Oem BRANDING
IP PING MONITER LIKE FPING
MIKROTIK SFP TEMPLATE MODIFICATION AND OPTIMISATION
VSOL OLT TEMPLATE OPTIMISATION
LIKE PON POWER TEMPARATURE
SFP POWER AND ONU POWER.
ADDING HOST AND ENABLE MONITER FOR
OUR SPEED TEST SERVER AND LINUX VM
AND PROMOX HYPER VISER


I've set the project as ASAP, so time is of the essence for me.

Please only apply if you have extensive experience in working with Zabbix systems and can deliver high-quality results promptly. Thank you.