Mohamed Shafims

Managed production blockchain infrastructure for 100+ networks across 6+ globally distributed bare-metal data centers, sustaining 99.9%+ uptime for validators, Ethereum, Layer 2 and Cosmos full nodes, archive nodes, and RPC services. Onboarded 25+ blockchain networks end-to-end, covering VM provisioning, Ansible automation, monitoring setup, Apache Apisix routing, DNS configurations, and host-level firewalls. Operated and maintained Apache Apisix API gateway routing high-throughput traffic for 30+ blockchain RPC endpoints, executing a seamless zero-downtime migration from monolithic Nginx across distributed systems. Contributed to Kubernetes Git Ops operations on Linode LKE using ArgoCD for automated sync, pruning, and self-healing deployments, integrating Hashi Corp Vault via Vault Static Secret CRDs for automated secret rotation.

Expanded Prometheus observability with Alertmanager and Squad Cast integrations, developing structural alert rules for validator health, node sync status, and underlying cluster infrastructure availability. Tracked and executed governance-driven node software upgrades across multiple chain ecosystems, refining telemetry data and alert rules to minimize monitoring noise and false positives. Provisioned and managed AWS infrastructure (VPC, EC2, S3, IAM) alongside AWS Lambda serverless functions to automate infrastructure workflows and data processing across environments. Leveraged Git Hub Copilot, Deep Seek, Kimi, and Codeium/Windsurf to accelerate infrastructure-as-code development (Ansible, Terraform), log analysis, generate troubleshooting scripts, and draft technical documentation — reducing scripting time by ~30% and improving incident response consistency.

Automated Git Hub release monitoring and ticket creation using n8n workflows, reducing manual effort and improving upgrade response time across 50+ blockchain networks. Administered Cloudflare DNS, host-level firewall controls, and Wire Guard VPN connectivity between data centers to support large-scale Linode-to-Proxmox node migrations and Ansible inventory standardizations. Operated Wormhole Guardian infrastructure, multi-chain bridge full nodes, and Horcrux threshold signing for Cosmos validators, maintaining 100% signing availability and reducing key-management single points of failure. Handled on-call incident response for infrastructure and node outages, applying root-cause analysis, operational fixes, and targeted automation to reduce MTTR by 40%.

Built and maintained CI/CD pipelines with Jenkins, Bitbucket CI/CD, and Azure Dev Ops Pipelines for non-production and production releases, reducing deployment time by 50%. Automated Kubernetes deployment workflows for 50+ microservices using Ansible playbooks and private container registries across multiple clusters. Managed Azure IaaS resources including Virtual Machines, Virtual Networks, Resource Groups, Auto Scaling, and VM Scale Set image upgrades.

Performed SAST and SCA vulnerability scanning using Veracode and supported remediation and code quality efforts through Sonar Qube. Created and maintained DEV, ST, and UAT environments across 4 environment tiers for major quarterly releases and supported release coordination across teams. Collaborated with 10+ application and operations teams to troubleshoot production issues and improve service reliability.