ZABBIX CUSTOMIZATION AND INTEGRATION

I'm currently running Zabbix 5.0 and looking for an expert to help me with a unique project that involves customization and integration.

Zabbix system running fine
1 :;Modification required in sfp Trigger and
Link down trigger.
2 Required ping Moniter and trigger for ip
Because of rto findinging
2 olt epon olt template
For pon and onu power moniter.
GENEXIS OLT GPON TEMPLETE
NOKIA ISAM 7362 OLT TEMPLTELE
DELL SWITCH N1548P
DELL S4048
MIKROTIK MSTP AND BGP TEMPLETE
Zabbix. Oem branding.