Hire the Best Intersystems Cache Specialists

I am an experienced Linux administrator. I have 15+ years of experience in Linux system administration and problem-solving. I can troubleshooting all kinds of linux issues, centos migration, centos/ubuntu crash rescue, investigate server performance issue and web server administration. Skills & Deliverables: Cloud Infrastructure & Dedicated VPS Setup (AWS, DigitalOcean, Hetzner, Contabo, Linode etc) Building secure, high-performance servers with proper backup, and automation. Linux Administration(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Performance optimization, monitoring, troubleshooting, log analysis, and uptime management. Server migration(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Secure migration of data and app between different servers. Web Server Trouble-shooting Slow server, website troubleshooting and optimization Recurring downtime issue troubleshooting and fix. Centos7 server migration Upgrade centos7 to almalinux 8 or 9. Migrate data&apps from centos7 to Ubuntu/Debian/Rocky/Almalinux Server Upgrade(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Upgrade ubuntu 14 16 18 20 22 to the latest version. Upgrade Debian , Rocky Linux, Almalinux to the latest version Server rescue(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Fix linux system crash, file system corruption. Security & Compliance Firewall configuration, access control, TLS/SSL, patching, vulnerability prevention. Backup & Disaster Recovery Strategy Automated backups, retention policies, restore testing, failover planning. Application Hosting & Migration WordPress, Prestashop, Forum app, Node.js, Python apps — smooth migration without downtime. Email Infrastructure & Deliverability Improvement Domain authentication setup (SPF / DKIM / DMARC), inbox placement, fixing spam issues. Why choose me? - Strong skills and extensive experience , can work independently and efficiently , able to fix complex issues - Fast and clear communication, detail and solution oriented - Honest and proactive work ethic

Do you need a reliable System Administrator to keep your servers secure, optimized, and running 24/7? I specialize in system administration, server management, and cloud infrastructure, helping businesses maintain stability, scalability, and security across hybrid environments. ⚙️ What I Do I provide end-to-end system administration and technical support for both Windows and Linux ecosystems — ensuring high performance, strong security, and minimal downtime. Core Services: 🧩 Windows & Linux Server Management (Ubuntu, CentOS, Red Hat) 🔒 Active Directory, Group Policy, and User Management ☁️ Microsoft 365 & Azure Administration (VMs, Azure AD, IAM, MFA) 🧠 Network Administration & Security (VPNs, Firewalls, Load Balancing) 💾 Backup & Disaster Recovery (Veeam, Acronis, Windows Backup) ⚙️ Server Virtualization (VMware, Hyper-V, Proxmox) 🔧 Automation & Scripting (PowerShell, Bash) 🛠️ Remote IT Support & Troubleshooting (TeamViewer, RDP, AnyDesk) 🌐 Tools & Technologies Operating Systems: Windows Server, Ubuntu, CentOS, Red Hat Platforms: Azure, Microsoft 365, VMware, Hyper-V, Proxmox Networking: Cisco ASA, Fortinet, pfSense, Nginx, HAProxy Monitoring: Nagios, PRTG, SolarWinds Backup: Veeam, Acronis, Windows Backup ⚡ Why Clients Choose Me ✅ 20+ successful system administration projects with 5-star results ✅ Proactive monitoring to prevent issues before they occur ✅ Fast response times and detailed documentation ✅ Experienced in both on-premises and cloud environments ✅ Dedicated to delivering secure, efficient, and reliable IT solutions Let’s optimize your systems for performance, security, and uptime. 💬 Contact me to discuss your infrastructure and how I can help streamline it.

As a dedicated and customer‑focused IT Specialist, I deliver end‑to‑end cloud, infrastructure, and security solutions that help businesses stay productive, secure, and future‑ready. With 14+ years of hands‑on experience across Microsoft 365, Azure, Intune, Windows Server, and enterprise security, I ensure every client receives reliable, efficient, and scalable IT outcomes. My approach is simple: 👉 Maximize uptime 👉 Strengthen security 👉 Enhance user experience 👉 Deliver consistent, proactive IT support 🔹 Core Areas of Expertise ☁️ Cloud & Modern Workplace Microsoft 365 / Office 365 Administration Exchange Online, Teams, SharePoint, license management, and tenant optimization. Exchange Online Migration Cutover, Staged, and Hybrid migrations — seamless mailbox transfers with zero downtime. Azure Cloud Services Virtual Machines, Web Apps, Storage, Recovery Services Vault, Service Bus, and cost optimization. Azure Active Directory (AAD) Secure identity management with Conditional Access, MFA, SSO, and role-based access. Microsoft Intune / Endpoint Manager Device compliance, security baselines, configuration profiles, app deployment, and mobile device management. Windows Autopilot Zero‑touch provisioning, standardized device rollout, automation, and endpoint readiness. Email Security Anti‑spam/anti‑phishing configuration, Defender for Office 365, DKIM, DMARC, SPF hardening, and secure mail flow. G Suite / Google Workspace Setup, migration, administration, and workflow improvements. 🏢 On-Premises Infrastructure Windows Server (2003–2025) – Installation, configuration, patching & optimization Active Directory Domain Services (ADDS) – Group Policy, DNS/DHCP, domain hardening RDS (Remote Desktop Services) – Secure remote access setup WDS (Windows Deployment Services) – Automated OS deployment File, Print & Application Servers – Centralized, secure, and optimized configurations Desktop Support (L1–L3) – Fast & proactive issue resolution for all end-user environments 🔒 Network & Security Solutions Firewall Configuration & Management Expertise in WatchGuard, Fortinet, security policies, VPN, traffic rules, and threat prevention. Azure Security Center & Microsoft Defender Threat analytics, vulnerability management, secure score improvements, and compliance enforcement. Backup & Recovery Solutions DPM, Symantec Backup Exec, Windows Server Backup, Datto, MSP360 — complete continuity planning. Access Control & System Hardening BitLocker, GPO security, RBAC, and best-practice-driven security design. ⚙️ Additional Skills Server & Network Performance Optimization Virtualization & Hybrid Cloud Integrations (On‑prem + Azure) Incident, Problem & Change Management (L1/L2/L3) Root Cause Analysis & Long-term Fix Implementation 🚀 Why Work With Me? ✔️ 12+ years of real-world IT experience ✔️ Strong Microsoft 365 & Azure technical background ✔️ Proven ability to design secure, stable & high-performing infrastructures ✔️ Excellent communication, documentation, and client service ✔️ Commitment to reliability, transparency & continuous improvement 🤝 Let’s Work Together Whether you need Exchange Online migration, Autopilot deployment, Microsoft 365 management, Azure setup, firewall configuration, Windows Server optimization, or ongoing tech support, I can help you build a secure, efficient, and future-ready IT environment. 📩 Let’s connect and elevate your IT infrastructure to the next level.

Experienced System Administrator with expertise in Windows and Linux administration, Identity and Access Management (IAM), virtualization, cybersecurity, infrastructure monitoring, and cloud-native technologies including Docker and Kubernetes. Passionate about building secure, reliable, and modern IT infrastructure. Core Expertise Identity & Access Management (IAM) • User provisioning, de-provisioning, and role-based access management using Okta, Keycloak, and Microsoft Entra ID. Systems Administration • Windows Server, Linux, Active Directory, Group Policy, and Microsoft 365 administration. Cloud-Native & Automation • Docker, Kubernetes, Git, Bash scripting, and Ansible automation. Virtualization & Infrastructure • VMware, Hyper-V, Proxmox, KVM, and VirtualBox. Security & Monitoring • Security hardening, Wazuh, Grafana, Prometheus, backup, and infrastructure monitoring. Networking • Cloudflare, Nginx Proxy Manager, DNS, SSL, reverse proxy, and network troubleshooting. I can help you deploy, secure, automate, and maintain reliable IT infrastructure across Windows and Linux environments. Whether you need system administration, IAM, security, or cloud-native support, I am committed to delivering practical and dependable solutions.

✅ TOP RATED PLUS Freelancer on Upwork, specializing in Systems Administration, I have worked with 🌟 High Profile Clients 🌟 in my Career, including the following to illustrate some of them: ✅ Toyota Europe ✅ Top 15 English Language Schools in Europe ✅ BORTEX Fine Tailoring If you are in need of someone with great attention to detail, top-quality troubleshooting and problem solving skills, then get in touch and let us start working together. Some Industry-Grade Certifications that I hold: 🏆Microsoft Office 365 Administrator 🏆Microsoft Azure Administrator 🏆Cisco Administrator 🏆Mikrotik Administrator 🏆Google Cloud Engineer

Need a reliable Microsoft 365 and MSP engineer to resolve issues quickly, improve security, and keep your business running smoothly? I have 7+ years of experience supporting US-based Managed Service Providers (MSPs), delivering Microsoft 365 administration, Azure management, Windows Server administration, and Level 1/Level 2/3 IT support for small and mid-sized businesses. I can help with: Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive) Microsoft Entra ID (Azure AD) & Intune Windows Server 2016/2019/2022 & Active Directory Azure Virtual Machines & Cloud Administration User Onboarding & Offboarding Microsoft 365 Migrations SharePoint Permissions & Access Management VPN, DNS, DHCP & Network Troubleshooting VMware & Hyper-V Backup Solutions (Veeam, Acronis, Unitrends) MSP Tools ConnectWise • NinjaOne • ServiceNow • Jira • Zendesk • Freshdesk • IT Glue Why Work With Me? ✅ 7+ years supporting US-based MSPs ✅ Microsoft Certified (AZ-800 & AZ-801) ✅ Fast troubleshooting and root cause analysis ✅ Clear communication and detailed documentation ✅ Reliable remote support during US business hours ✅ Long-term IT support and infrastructure management I help businesses reduce downtime, strengthen their Microsoft 365 environment, and keep their IT infrastructure secure and reliable. If you're looking for a dependable Microsoft 365, Azure, or MSP professional who takes ownership and delivers practical solutions, I'd be happy to discuss your project.