Besfort Haxhani

Kubernetes administrator delivering reliable, secure, and cost-efficient platforms across 18 production environments. I lead zero/low-downtime upgrades, CI/CD & GitOps delivery, workload hardening (runtime + supply chain), and autoscaling/capacity tuning to reduce spend while protecting SLOs. Strong in incident response, RCA, and preventive contr

• Upgraded Rancher-managed AWS EKS workers 1.23→1.28.15 via blue/green cutover; fixed reconciliation issues (missing subnets, stale launch template) and retired legacy nodes with zero downtime. • Built new Launch Template (pinned AL2 1.28 AMI, right-sized root disk), rolled nodes through ASG, and migrated workloads to a new node group with minimal disruption. • Resolved critical cross-AZ outage (up to 66% errors) by correcting VPC peering routes and standardizing subnets across 3 AZs, restoring SLOs.

Built internal DevOps platform (CI/CD, Kubernetes standards, VMware hosting, observability, secure access) so teams shipped faster with compliant defaults. • Reusable Jenkins pipelines/scripts for build/test/deploy • Standardized VMware VM images + hardening for intranet/automation • K8s + Helm/Kustomize templates; shared ingress/DNS/storage/registry • Fluent Bit logging, metrics/alerts, runbooks; RBAC/SSO, encryption, centralized secrets

Delivered multi-vendor IP/MPLS migrations and backhaul provisioning (CEN/CTBH) with Tier-3 support across Juniper/Cisco/Nokia/ADVA, using HA design, automation, and MOP-driven cutovers to minimize downtime. • Led maintenance windows and cross-team coordination to reduce customer impact • Troubleshot complex L1/L2/L3 faults across access/aggregation/core • Provisioned Ethernet (E-Line/E-LAN) + L3 services (DIA, SIP/PRI, hosted voice).