Hire the Best Linux System Administrators

Slow deployments? Surprise cloud bills? A production server nobody dares to touch? I fix that. I'm a "Top Rated Plus" DevOps & Linux engineer 100% Job Success across 32 contracts and 3,300+ hours on Upwork with 9+ years building, securing, and hardening infrastructure on AWS, Azure, GCP, and cost-efficient VPS platforms (Contabo, Hetzner, Hostinger) for healthcare, SaaS, and fintech companies across the Australia, US, UK, and Cayman Islands. Recent results I have delivered: ✅ Secure staging + production VPS environments, Ansible-automated setup with Docker, hardening, and zero-downtime deploys (5★ "Happy to work again with you") ✅ Cut CI/CD costs to $0, migrated a healthcare client's Playwright E2E pipeline from GitHub-hosted to self-hosted runners with true parallel execution ✅ Reduced deploy time from 20 minutes to under 2, rebuilt an ERP platform's release process around immutable Docker images and GitOps ✅ Zero public management ports, hardened an Azure VM estate with Bastion + PIM, policy enforcement, and tested recovery drills ✅ Full observability stack, Prometheus, Grafana, Alertmanager, and Blackbox monitoring across a multi-server production fleet ✅ Point-in-time database recovery, SQL Server backup automation with offsite sync and alerting for a pharmacy platform What I can do for you: 🖥️ VPS Setup & Migration: Contabo, Hetzner, Hostinger, DigitalOcean droplet full production setups with Docker, SSL, firewalls, backups, and monitoring. Moving off AWS/Azure to cut costs 60–80%? I've done it many times. ☁️ Cloud & Infrastructure: AWS, Azure, GCP architecture, migration, cost optimization 🔄 CI/CD Pipelines: GitHub Actions, Jenkins, AWS CodePipeline build, test, deploy automation 📦 Containers & Orchestration: Docker, Docker Compose, Kubernetes (EKS/AKS), Helm 🏗️ Infrastructure as Code: Terraform, Ansible, CloudFormation 🔐 Security & Compliance: server hardening, IAM least-privilege, firewalls, SSL/TLS, HIPAA/GDPR readiness 📊 Monitoring & Reliability: Prometheus, Grafana, ELK, CloudWatch, backup & disaster recovery 🐧 Linux & Windows Server administration, Scripting, code writing, Nginx/Apache, Proxmox virtualization Why clients keep working with me: - Top Rated Plus: top 3% of Upwork talent, with long-term contracts (some 6+ months and ongoing) - Certified DevOps Administrator and Linux Foundation Certified SysAdmin (LFCS) - Healthcare-grade security mindset: I treat every server like it holds patient data because often it does - Clear communication, documented handovers, no disappearing acts Whether you're a startup that needs its first proper pipeline, a company moving from expensive cloud to a lean VPS, or a team drowning in infrastructure debt message me. I usually respond within a few hours. Let's make your infrastructure boring, in the best possible way: fast, secure, and something you never have to think about. Umer.

I am an IT Support Specialist and Technical Support Engineer with over two years of experience in troubleshooting, system support, and customer assistance. I help end-users and administrators diagnose and resolve technical issues, manage networks, configure hardware/software, and maintain IT systems. With a strong background in Windows/Linux environments, device repair, and technical documentation, I deliver fast, reliable, and professional support to clients. I am committed to quality service, clear communication, and effective problem-solving.

I'm a DevOps and Cloud Engineer with 3 years of professional experience building, automating, and maintaining reliable infrastructure. I hold an AWS Certified Cloud Practitioner certification and have recently earned the Rising Talent badge on Upwork. I focus on being solution-oriented and taking full accountability for outcomes, not just completing tasks. Recent clients have highlighted my ability to resolve issues efficiently and deliver reliable results. Certification: AWS Certified Cloud Practitioner Skills: Cloud: AWS (EC2, S3, RDS, ECS, IAM, CloudWatch, VPC, Route 53) Infrastructure as Code & CI/CD Tools: Terraform, Ansible, Jenkins Containerization & Orchestration: Docker, Kubernetes (YAML manifests) System Administration: Linux (Ubuntu, CentOS), Windows Server, Nginx, Apache, Firewall, SSH, VPN (OpenVPN) Monitoring & Logging:: Prometheus, Grafana, htop Security: SSL/TLS (Certbot), IAM, Firewalls, VPN Scripting & Automation: Bash, Python Version Control: Git, GitHub Troubleshooting & Problem Solving: Root cause analysis, incident response, performance tuning, scalability planning, network diagnostics I focus on practical, reliable solutions and clear communication. If you need help with cloud setup, CI/CD automation, containerized deployments, server troubleshooting, or infrastructure automation, let's talk. I'm happy to jump on a quick call to understand your project before you commit to anything.

I started with BeOS in 2002, because of a friend, who showed me something other than Windows, Always I worked repair PC & Laptops. Now I have more 10 years of experience in Server Linux. I can manager servers dedicated, servesr VPS, servers shared, etc. Setup and management you server; Apache/Nginx/Tomcat. SMTP Postfix, POP/IMAP Dovecot. FTP Vsftpd, Proftpd, Pure-ftpd-mysql. Dns Bind9, dnsmasq. File Server & printer Samba (dc-ac). Network administrator: isc-server-dhcp, openvpn, etc. Install and renew SSL certicate. All services on cloud; AWS, Azure, etc. Also website and E-mail migrations. ALL panels and web managers. Management all Linux distributions.

👨‍💻 Experienced IT Lead | Cloud & DevOps | Infrastructure & Security Specialist With over 10 years of hands-on experience in cloud solutions, DevOps automation, and network infrastructure, I design and maintain reliable IT environments for multi-branch organizations. Skilled in Azure, AWS, DigitalOcean, Hetzner, Contabo, Vultr, Bluehost, and Hostinger, managing migration, integration, and automation between on-premises and cloud systems. Proficient with Docker, GitHub, CI/CD pipelines, API integration, and scripting in Python, PowerShell, and Bash to streamline deployments and automate operations. Experienced with VMware ESXi, Proxmox, and Windows Server (2012–2025) administration, including Active Directory, Group Policy, DNS, and DHCP. 📜 Certifications: ✔ 📘 ITIL® 4 Foundation Certificate in IT Service Management ✔ 🎓 CCNA Routing & Switching (Cisco Certified Network Associate) ✔ 🏆 MCSA Windows Server 2012 (Microsoft Certified Solutions Associate) ✔ 🏅 MCSE Core Infrastructure (Microsoft Certified Solutions Expert) ✔ 📡 Cisco Certified Specialist - Enterprise Core ✔ 🔐 Cyber Security Foundation (CSFPC) ✔ 🖥 Microsoft Certified Professional (MCP) 🛡 Network & Security Expert in firewalls (Sophos, pfSense, OPNsense, Mikrotik, DrayTek), VPNs (IPSec, WireGuard, SSL), and Cloudflare DNS/SSL security. Skilled in routing, VLANs, QoS, load balancing, and network monitoring for high-availability connectivity. 🏗 Systems & Virtualization Managing both Windows and Linux servers (Ubuntu, CentOS, Debian) with RAID, NAS/SAN, and backup solutions like Veeam. Experience in Proxmox VE, VMware, and Hyper-V environments. 📞 VoIP & Communication Administering Avaya, Asterisk, FreePBX, and Issabel systems, configuring SIP trunks, IVR, queues, and call recording for enterprise call centers. 🏢 ERP, CRM & Business Systems Managing Odoo, custom ERP deployments, and CRM integration to improve business workflow and data consistency. ☁ Remote & IT Management Using AnyDesk, Zoom, TeamViewer, and ManageEngine for remote support, monitoring, and ticketing. Experienced in IT procurement, inventory tracking, and documentation. 🎥 CCTV & Access Control Installing and maintaining IP/Analog CCTV, access control, and UPS power systems for secure and reliable infrastructure. 🚀 Passionate about cloud infrastructure, automation, and cybersecurity, with a proven record of optimizing enterprise networks and ensuring system uptime, stability, and security.

Senior Linux & Cloud Infrastructure Engineer | DevOps | 5+ Years | 100% Job Success I keep production systems up, fast, and secure — so you don't have to think about infrastructure. Currently managing 60+ Linux servers across AWS, Azure, and GCP for enterprise clients, including high-traffic WordPress fleets, educational LMS platforms, and SaaS applications. ━━ WHAT I DELIVER ━━ → WordPress at Scale: GridPane, OpenLiteSpeed, LiteSpeed Enterprise, Cloudflare WAF, CDN optimization — page loads cut from 4s to <1s → Cloud Infrastructure: AWS (EC2, S3, Route 53, IAM), Azure, GCP — architecture, migration, cost optimization → DevOps & CI/CD: Jenkins, GitHub Actions — automated build, test, and deployment pipelines → Infrastructure as Code: Ansible playbooks for provisioning, config management, and compliance automation (DISA STIG, OpenSCAP) → Containers: Docker, Portainer, Docker Compose — multi-container app deployment → Monitoring & Observability: Zabbix, Grafana, Prometheus, Loki — full-stack setup with alerting pipelines across 40+ production servers → Networking & VPN: Tailscale mesh VPN, Cloudflare Tunnels, Nginx/Caddy reverse proxy, pfSense, DNS management at scale → Security & Compliance: ModSecurity, OWASP hardening, DISA STIG, Wazuh SIEM, zero breaches in 5 years → Automation: Ansible, Bash, PowerShell, n8n workflows — eliminated 20+ manual hours/week → Microsoft 365 & Entra ID: full tenant management, MFA, Conditional Access, bulk provisioning → Mail Infrastructure: Postal Mail Server, SendGrid, DKIM/SPF/DMARC from scratch → Virtualization & Homelab: Proxmox, VMware ESXi, PXE boot + autoinstall for zero-touch Ubuntu provisioning, LVM storage, VM lifecycle management ━━ PROVEN RESULTS ━━ ✓ Built Jenkins CI/CD pipeline with Ansible for DISA STIG-compliant Ubuntu server fleet ✓ Deployed PXE autoinstall infrastructure for zero-touch provisioning of 10+ VMs ✓ Migrated 50+ WordPress sites with 100% data integrity and zero downtime ✓ Reduced server response time 40% through OLS tuning + CDN integration ✓ Set up full observability stack (Zabbix + Grafana + Loki) across 40+ production servers ✓ Implemented Tailscale mesh VPN across Proxmox homelab and remote VPS nodes ✓ Configured multi-layered security stack reducing spam/injection by 95% ✓ Automated M365 student provisioning for 3 educational institutions (500+ accounts) ✓ Reduced manual ops overhead 60% through n8n + Bash automation workflows ✓ Deployed automated backup systems saving clients 15+ hours/week ━━ TECHNOLOGY STACK ━━ Cloud: AWS (EC2, S3, IAM, Route 53, CloudWatch) | Azure | GCP On-Prem: Proxmox | VMware ESXi | Hyper-V | Bare Metal (OVH, Contabo, Hetzner) OS: Ubuntu 20/22/24 LTS | Rocky Linux | CentOS | RHEL | Debian Web: Apache | Nginx | LiteSpeed | OpenLiteSpeed Panels: GridPane | cPanel/WHM | Plesk | CyberPanel | aaPanel DB: MySQL | MariaDB | PostgreSQL DevOps: Ansible | Jenkins | GitHub Actions | Bash | PowerShell | n8n Containers: Docker | Portainer | Docker Compose Monitoring: Zabbix | Grafana | Prometheus | Loki | Uptime Kuma Security: Wazuh SIEM | OpenSCAP | ModSecurity | Cloudflare WAF | CSF | Sophos | Fortinet DNS/Mail: Cloudflare | Route 53 | Postal Mail Server | DKIM/SPF/DMARC RMM: Atera | ConnectWise | Datto | N-able I provide detailed documentation for every implementation and respond within 1 minute during business hours Send me your requirements — I'll respond with a tailored plan within 24 hours.