Hire the Best Slackware Linux Specialists
in Turkey

Senior Linux Platform Engineer | Performance & Network Debugging $65.00/hr I help diagnose and fix complex Linux issues in production environments. If your system behaves strangely (high load with low CPU usage, network instability, random slowdowns), I focus on identifying the real root cause quickly instead of applying temporary fixes. Clients usually come to me when: - something is not working as expected - previous attempts did not solve the issue - the problem is not obvious I am a senior Linux engineer with 20+ years of experience working on production systems, including distributed and high-availability environments. In my current role, I support a Linux-based platform used in satellite communication systems. I work across OS, network, storage, and virtualization layers, troubleshooting issues that require understanding how systems behave under real conditions. Some of the work I do regularly: - Investigating performance issues across multiple layers (CPU, I/O, network, application) - Debugging production problems using strace, tcpdump, and system-level metrics - Supporting large-scale OS upgrades (RHEL 6 → 7 → 9) with minimal downtime - Maintaining build systems that generate ISO/OVA images for production deployments - Supporting VMware environments (ESXi, vCenter) - Working closely with developers and support teams to identify real causes behind incidents Typical problems I help with: - High system load and performance bottlenecks - Network issues (MTU mismatch, latency, routing, DNS) - Linux debugging (process-level and system-level) - Service instability and unexpected behavior - Container-related issues (Docker / Kubernetes basics) - System tuning and long-term reliability improvements Tools I use regularly: top, vmstat, iostat, strace, tcpdump, netstat, ss, dig, systemctl, dmesg, log analysis I prefer clear communication, practical solutions, and fast turnaround when possible. I am also open to long-term collaboration if a strong match is established.

🔧 Linux Systems Engineer | Certified Red Hat Architect | Suse & Oracle Expert I am a seasoned Linux Systems Engineer with extensive experience in enterprise-grade Linux distributions and virtualization technologies. I have a proven track record of designing, implementing, and automating robust server infrastructures. ✅ Certifications: Red Hat Certified Architect in Infrastructure Level II (ID: 190-311-605 rhce , rhca ) Red Hat Certified Specialist in High Availability Clustering Red Hat Certified Specialist in Managing Automation with Ansible Automation Platform Red Hat Certified Specialist in Linux Performance Tuning Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting Red Hat Certified Specialist in Services Management and Automation Red Hat Certified Specialist in Deployment and Systems Management (Red Hat Satellite ) SUSE Certified Engineer (SCE) – including SUSE Linux Enterprise for SAP Oracle Certified Professional (OCP) – Linux & Solaris System Administration 🖥️ Linux Distributions: Red Hat Enterprise Linux (RHEL) , Rocky linux, Alma linux, Oracle linux Debian ( + Ubuntu ) SUSE Linux Enterprise Oracle Enterprise Linux (OEL) CentOS Proxmox VE oVirt, Oracle Linux Virtual manager ⚙️ Virtualization & Containers: Linux KVM / QEMU-KVM LXC / LXD Xen oVirt Proxmox VE 📦 Applications & Cluster Technologies: Ansible (Automation & Configuration Management) HAProxy (Load Balancing) MaxScale (MariaDB Proxy) Percona XtraDB Cluster (High Availability MySQL) Redis/Valkey cluster 🛠️ Storage & Other Systems: Oracle Solaris 10/11 (Certified Administrator) Oracle/SUN ZFS Storage Appliances OpenZFS Linux Raid Linux data recover FreeNAS / TrueNAS 💬 I can help you with: Designing and deploying highly available Linux clusters ( Pacemaker / Corosync ) Automating server provisioning and configuration with Ansible Installation service operations are done with ansible. Server Boot Issue Troubleshooting Data server recovery (Only linux systems) Migrating legacy systems to modern, scalable platforms Securing and hardening enterprise Linux systems Virtualization and private cloud infrastructure setup Linux networking (bonding, swicth, bridge, load balance, lacp, nginx lb) Let's work together to bring stability, performance, and automation to your infrastructure.

🔹Highly skilled IT Specialist with premier support capabilities. 🔹Efficient communicator in English. 🔹Unwavering commitment to responsiveness. 🔹Over a thousand hours logged on Upwork. 🔹Successfully completed more than 60 projects on Upwork. 🔹Bringing 22 years of IT experience to the table. 🔹Available full-time and open to relocation. As a certified System Administrator, Developer, Programmer, and Project Manager, I am the professional you seek assistance from. I hold LPI (101 & 102) and RHCE certifications and have a well-rounded skill set in the IT sphere, from automation to development across mobile, desktop, and web platforms. Over the past 15 years, I've acquired significant experience across a broad spectrum of software and systems. Notably, my skills include: 1. **Linux System Administration**: I've worked with numerous Linux systems since 2006, starting with Fedora, then CentOS and Ubuntu, managing their installation, configuration, and maintenance. 2. **Scripting**: I take immense pleasure in scripting, particularly for automation. I've honed my skills in Linux (bash) and Windows (AutoIT - batch) scripting, automating tasks even without command-line interfaces. 3. **Hosting Services**: I am proficient in handling various control panels for hosting and administration like cPanel, Plesk, ISPconfig, Webmin, Usermin, AWS, DigitalOcean, and Rackspace, among others. I can also manage standalone software like Apache, MySQL Server, and other servers. 4. **VPN Services**: I've installed and configured servers for VPN services, including PPTP and OpenVPN, and developed custom control panels for clients. I am proud to be the solo developer of vpnplatform (vpnplatform.org/team). 5. **Malware Mitigation**: I can clean your Windows systems of malware and secure them effectively. I've even developed an app, "Automated Malware Wizard," for comprehensive malware cleaning and system updating. 6. **Networking**: As a former ISP CEO, I delivered internet services to over 200 local subscribers at Hamad ISP. 7. **VOIP**: Experienced in Asterisk and Asterisk GUI installations. 8. **Virtualization**: Proficient with VMware and VirtualBox, complementing my hosting service capabilities. 9. **Email List Management**: I can effectively manage and clean your email lists, ensuring they stay away from SPAM lists. 10. **Web Development**: Proficient in HTML/CSS/PHP/MySQL/JavaScript for web page development. 11. **Other skills**: Experience with Oracle Databases, Android, and Java programming. I am always available for contact via email, SMS, or phone call, and ready to relocate if needed. I respect my work, ensuring confidentiality while dedicating my utmost effort. As the leader of a team of IT specialists, I can provide a holistic solution to your IT needs, from mobile to web development. Our mission is to deliver beyond your expectations. Please note: I am flexible with my availability and open to relocation. Currently, I reside in Istanbul, Turkey. Best regards, Ahmed Hamad