Hire the Best System Administrators
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I'm a Linux System Administrator specializing in self-hosted infrastructure, Nextcloud, and open-source technologies. I help businesses, nonprofits, and organizations deploy, migrate, secure, and maintain reliable Linux-based systems. Whether you need a new Nextcloud installation, a complex migration, performance tuning, or ongoing server administration, I deliver solutions that are secure, maintainable, and built for long-term reliability. My expertise includes: • Nextcloud deployment, upgrades, migrations, backup and disaster recovery • Linux server administration (Ubuntu, Debian, Rocky Linux) • Docker and Docker Compose • NGINX, Apache, Caddy, OpenLiteSpeed • PostgreSQL, Mysql, MariaDB, and Redis • Keycloak, OpenID Connect (OIDC), and Single Sign-On (SSO) • Reverse proxies, SSL/TLS, DNS, and networking • System hardening, monitoring, automation, and troubleshooting I've delivered projects involving Nextcloud deployments, Keycloak/OIDC authentication integrations, BigBlueButton infrastructure, cloud migrations, and production Linux environments for organizations of varying sizes. As an active contributor to Free and Open Source Software (FLOSS), I value solutions that are transparent, secure, and sustainable, not vendor lock-in. If you're looking for someone who can solve complex Linux infrastructure and Nextcloud challenges efficiently while communicating clearly throughout the project, let's discuss your project.

Expert Network Engineer & System Administrator | MikroTik Certified Summary: With a proven track record in network engineering and system administration, I offer a comprehensive skill set and a commitment to delivering excellence. As a certified MikroTik Network Associate, I specialize in designing, implementing, and optimizing networks for optimal performance and security. My expertise spans dynamic routing, network security, VPN setup, load balancing, and more, making me a reliable partner for your infrastructure needs. Key Skills: - Dynamic Routing & Optimization: Proficient in OSPF and BGP protocols, ensuring efficient traffic management and network scalability. - Robust Network Security: Implementing robust firewalls, intrusion detection systems, and encryption protocols to safeguard against cyber threats. - Advanced VPN Solutions: Configuring secure VPN tunnels for remote access and interconnecting geographically dispersed networks. - Load Balancing & Failover: Designing resilient architectures with load balancing and failover mechanisms to ensure high availability. - Quality of Service (QoS): Prioritizing network traffic for critical applications and services to maintain optimal performance. - Captive Portal Setup: Deploying captive portals for seamless guest authentication and access control in wireless networks. - DNS & Email Server Setup: Setting up and managing DNS servers and email servers for reliable communication infrastructure. - RADIUS Authentication: Configuring RADIUS servers for centralized authentication, authorization, and accounting. - Wireless Network Expertise: Designing and optimizing wireless networks, including long-range point-to-point links for seamless connectivity. - Monitoring & Management Tools: Proficient in utilizing Zabbix and other monitoring tools for proactive network management and troubleshooting. - VoIP Technologies: Experience with Asterisk and Vicidial for deploying VoIP solutions tailored to business needs. Additional Skills: - Programming Proficiency: Skilled in back-end languages such as Python and Bash scripting for automation and customization. - Web Hosting & Development: Experienced in web hosting management and front-end development to complement network infrastructure. Certifications: MikroTik Certified Network Associate (MTCNA), MikroTik Certified Routing Engineer (MTCRE) About Me: Driven by a passion for technology and a commitment to excellence, I thrive in dynamic environments where I can leverage my skills to solve complex challenges and drive business success. With a keen eye for detail and a proactive approach to problem-solving, I ensure that network infrastructures not only meet current needs but are also scalable and adaptable to future requirements.

Hello! I’m Besart, a System Administrator with over a decade of experience managing and optimizing IT infrastructure for businesses of all sizes. I specialize in ensuring secure, reliable, and high-performing systems across cloud and on-prem environments. My background spans server administration, Microsoft 365 management, network configuration, and automation with a focus on stability, scalability, and efficiency. Alongside my infrastructure expertise, I have a strong background in web development and design, allowing me to bridge the gap between IT systems and modern digital solutions.

Managed and maintained various IT systems, including servers, networks, VPNs, ViciDial, and VoIP systems. Implemented security measures to protect sensitive data and ensured compliance with industry standards. Monitored and troubleshot network and server issues and installed and configured new hardware and software systems. Delivered exceptional results through strong technical skills and attention to detail.

IT professional with hands-on experience across multiple platforms including Windows 💻, Linux 🐧, macOS/iOS 🍏📱, and Android 🤖. Whether you need assistance with Network Administration 🌐, System Administration ⚙️, Application Performance 🚀, or System Automation 🔄, I’ve got you covered! 🔑 Key Skills & Expertise: • Network Systems & Virtual Machines • Troubleshooting & IT Support • Software Installation & Configuration • Automation & Scripting (Python, Bash, PowerShell) • Cross-Platform Support (Windows, Linux, macOS, iOS/Android) I am always open to discussing new projects, job opportunities, and collaborations. Whether you need expert IT support, system automation, or any other tech-related assistance, feel free to reach out. Let’s explore how I can contribute to your success. 🌟🚀

👋 Hi, I'm Duka! I have been a Google Workspace Migration Expert since 2006—yes, almost two decades of experience! As a Top-Rated Plus Freelancer with a 100% Job Success Score, I specialize in seamless Google Workspace and Microsoft Office 365 migrations, helping businesses enhance their Digital Workspace and optimize productivity while reducing costs. 🚀 Why Choose Me? ✅ Top 3% of Talent on Upwork ✅ 330+ 5-Star Reviews ⭐⭐⭐⭐⭐ ✅ Certified Google Professional Workspace Administrator ✅ ISO/IEC 27001 Information Security Senior Lead Implementer ✅ MSc in Software Engineering & Telecommunications ✅ Executive MBA from the University of Sheffield, UK I have successfully completed 330+ projects, including Google Workspace to Microsoft Office 365 migrations, Google Workspace tenant-to-tenant migrations, Digital Workspace optimization, Google Workspace Enterprise Plus security audits, and AI-driven automation solutions for businesses across the USA, Canada, UK, and Europe. 🚀 From fast-growing SMEs to global corporations with 35,000+ employees, businesses have relied on me to drive digital transformation, optimize workflows, and strengthen security, ensuring seamless and efficient operations. I specialize in Google Workspace email migration, Microsoft 365 deployments, and email deliverability optimization (SPF, DKIM, DMARC compliance). 💡 Services I Offer: 🔹 Google Workspace & Microsoft Office 365 Migrations: ✔️ Migrate from Microsoft Office 365 / Microsoft Exchange to Google Workspace ✔️ Migrate from IMAP servers (Gmail, Rackspace, Zoho, etc.) to Google Workspace ✔️ Migrate from Google Workspace, IMAP, Rackspace to Microsoft Office 365 ✔️ Data migration from Dropbox, Google Drive, OneDrive, SharePoint, Box to Google or Microsoft 🔹 Google Workspace Enterprise Plus & Microsoft 365 Administration: ✔️ Manage & optimize Google Workspace Enterprise Plus environments ✔️ Provide Super Admin training and ongoing support ✔️ Integrate Google Workspace with Slack, Monday.com, Zoom, and other cloud services ✔️ Security management: Organizational units, 2FA, compliance audits 🔹 Email Deliverability & Security (SPF, DKIM, DMARC): ✔️ Fix email deliverability issues & configure SPF, DKIM, DMARC for Gmail & Yahoo compliance (2024 update) ✔️ Conduct Google Workspace / Microsoft 365 security audits ✔️ Implement ISO 27001 best practices for Google Workspace security & compliance 🛠️ Services : 🔹 Google Workspace Migration, Office 365 Migration, Email Migration, Gmail Migration 🔹 Microsoft Office 365 Engineer, Google Workspace Deployment, Google Workspace Admin 🔹 DNS, SPF, DKIM, DMARC, Email Security, WHM cPanel, IT Project Management 🔹 Digital Transformation, AI, ChatGPT, Automation 📅 Ready to streamline your business operations? Let’s start your Digital Transformation journey today! 💬 Send me a message, and let's discuss your project!