Ioan Tătaru
Platform & Infrastructure Engineer / SRE · DevOps
Platform & Infrastructure Engineer | Kubernetes · Argo CD · Ansible · Proxmox · Linux · VoIP | Real-time carrier infrastructure | Azure AZ-104
Who I am
Platform & Infrastructure Engineer with three years modernizing wholesale voice and SMS carrier infrastructure, bridging low-level packet networking with cloud-native automation.
On the platform and infrastructure side, I architect Kubernetes substrates, implementing declarative GitOps continuous delivery via Argo CD synced with GitHub and Gitea repositories. I automate multi-site Linux fleet provisioning, End-of-Life (EOL) OS upgrades (CentOS, Debian 6), and passwordless SSH security baselines using Ansible, while maintaining bare-metal Proxmox VE and VMware ESXi hypervisors. I leverage Bunnyshell for Environment-as-a-Service (EaaS) ephemeral previews and NetBox as the unified IPAM/DCIM single source of truth.
On the network and signaling side, I manage carrier SIP interconnections, Kamailio high-availability load balancing, FreeSWITCH/Asterisk custom voice routing engines (mod_lua), and edge security via iptables and pfSense. Instrumented with Prometheus/Grafana observability and backed by a peer-reviewed publication on resilient failover infrastructure (U.P.B. Scientific Bulletin, 2026).
Reliability discipline
Instrument hosts, network and apps so regressions surface on dashboards — not in partner complaints.
AZ-104 certified
Microsoft Certified: Azure Administrator Associate, with Azure Fundamentals (AZ-900).
Published author
Peer-reviewed in U.P.B. Scientific Bulletin on scalable emergency communication infrastructure.
Expertise & technologies
Experience
Credentials
Education
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University POLITEHNICA of Bucharest
Master's degree, Theory of Information Coding and Storage · In progress
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Transilvania University of Brașov
Engineer's degree in Computer Systems, Networking and Telecommunications
Certifications
Publications
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A Proposal for a Scalable Emergency Infrastructure: Ensuring Communication Continuity in Critical Situations
Peer-reviewed, U.P.B. Scientific Bulletin, Series C
Let's talk
Building something that has to stay up?
Open to Remote B2B / C2C. Whether it's reliability, GitOps, observability, or wiring live infrastructure into AI tooling — I'm open to a conversation.
Bucharest, Romania