Ishak Osman Handule

DevOps Engineer · CTO · Infrastructure · Automation · AI Ops

DevOps Engineer with 3+ years of hands-on experience managing mission-critical production systems across healthcare and SaaS environments. I currently lead DevOps operations for a hospital-grade EHR system at Jijiga Referral Hospital, supporting 175,000+ patient records, and serve as CTO of Codemano, a multi-tenant POS & ERP SaaS platform. My work focuses on Linux infrastructure, automation, CI/CD, disaster recovery, security hardening, and AI-assisted DevOps operations.

View Projects LinkedIn GitHub Download CV

Core Skills

Infrastructure

  • Linux (Ubuntu) server administration
  • Nginx, PM2, systemd
  • High availability & failover design
  • VPS & cloud server management

DevOps & Automation

  • CI/CD with GitHub Actions
  • Bash scripting & cron jobs
  • n8n automation workflows
  • Monitoring, alerting & recovery

Networking & Security

  • TCP/IP, firewalls, routing
  • Server & VPS hardening
  • Encrypted backups
  • CCNA-level networking (hands-on)

Key Projects

Jijiga Referral Hospital – EHR Infrastructure

Mission-critical healthcare infrastructure supporting a live EHR system with over 175,000+ patient records in Eastern Ethiopia.

  • Multi-server Linux architecture (local + cloud)
  • Active–passive failover with recovery under 10 minutes
  • Hourly encrypted database backups (local + cloud)
  • Custom Bash automation for backup replication
  • Telegram-based monitoring and incident notifications
  • Resolved critical disk failures with less than 1 hour downtime

Codemano POS – Multi-Tenant POS & ERP SaaS Platform

Codemano is a production-grade, multi-tenant POS and ERP platform designed for businesses requiring inventory, sales, payments, reporting, and operational automation at scale.

  • Designed and managed full production infrastructure on Linux VPS
  • Implemented CI/CD pipelines with GitHub Actions
  • Process management using PM2 with Nginx reverse proxy
  • Multi-tenant database architecture and access isolation
  • Automated backups, restores, and disaster recovery workflows
  • Secure deployment practices and server hardening

As CTO, I oversee system architecture, DevOps, automation strategy, and production reliability across all Codemano environments.

AI DevOps Manager – Automation & Monitoring System

An AI-assisted DevOps automation system built to continuously monitor infrastructure health, analyze system behavior, and perform safe recovery actions with minimal human intervention.

  • 24/7 server health monitoring using n8n workflows
  • AI-assisted analysis of logs and system metrics
  • Automated service restarts (PM2, Nginx) with safety checks
  • Real-time alerts and incident reports via Telegram
  • Designed to reduce downtime and operational response time