20+ years experience managing infrastructure with Telco's and enterprises. Past 5 years have been focussed more on DevOps.
Few DevOps related certs:
AWS Certified (Architect | SysOps | Developer) Associate
AWS Certified Security Speciality
Google Cloud Certified - Professional Cloud Architect
Google Cloud Certified - Professional Cloud Security Engineer
Kubernetes Certified Administrator (CKA)
Kubernetes Certified Application Developer (CKAD)
My core area of expertise is real time communications (VoIP, Video, WebRTC etc), worked with open source and commercial vendors (Cisco, Avaya, Oracle) as well. 10+ years supporting infrastructure comprise of mainly Cisco gear (routers, switches, firewalls).