Hire the Best Red Hat Enterprise Linux (RHEL) Specialists
in Romania

Your Linux server is down, misconfigured, or leaking security gaps - I'll fix it fast and make sure it stays fixed. I specialize in setting up and hardening production Linux environments: VPS configuration, Nginx + SSL, Docker deployments, automated backups, and monitoring with Prometheus & Grafana. I don't just apply fixes - I document everything so you understand what changed and why. What I can help you with: → VPS setup and security hardening (SSH, firewall, fail2ban) → Nginx configuration + SSL certificates (Let's Encrypt) → Docker containerization and deployment → MySQL / PostgreSQL setup and maintenance → Monitoring and alerting (Prometheus + Grafana) → Incident troubleshooting and root cause analysis I've resolved 40+ real-world Linux failure scenarios on SadServers (Master certificate), built production-ready server environments from scratch, and completed a full DevOps lab covering Docker, Kubernetes, ArgoCD GitOps, and Prometheus monitoring. I respond quickly, communicate clearly, and document my work. If you have a server issue or need reliable Linux infrastructure set up properly - send me a message.

Overview Seasoned Linux Systems Engineer with 20+ years of hands-on experience managing complex server environments, cloud infrastructures, and network systems. I specialize in building robust, scalable infrastructure solutions with a focus on performance optimization, security, and automation. Available for 24/7 operational support with proven expertise in incident management and SLA enforcement. What I Offer I deliver end-to-end Linux infrastructure solutions including: - High-Performance Web Hosting Infrastructure: Apache, Nginx, LiteSpeed with LS Cache optimization, WHM/cPanel management - Database Administration: MySQL, MariaDB, PostgreSQL with replication, clustering, and performance tuning - Virtualization & Cloud Architecture: Proxmox, Virtuozzo, XenServer, KVM, VM migration - Email Systems: Postfix, Exim, Qmail with security solutions (Spamassassin, ClamAV) and authentication (SPF, DKIM, DMARC) - Infrastructure as Code: Ansible, Salt, Git-based deployment pipelines - Comprehensive Monitoring: Prometheus, Grafana, Icinga, Check_mk, Nagios - Backup Solutions: Custom rsync/scp systems, R1Soft, JetBackup, S3 integration - Network Administration: BGP, OSPF routing, VLANs, QoS, VPNs, security policies - Automation & Scripting: Bash, Python, PHP for system automation and deployment tooling Recent Projects - Implemented comprehensive monitoring infrastructure using Prometheus, Grafana and Icinga for a managed VPS provider - Designed and executed a multi-location backup strategy incorporating AWS S3 storage, local backups, and automated verification - Led infrastructure migration following company acquisition, ensuring zero downtime during transition - Implemented configuration management using Salt and Ansible for a fleet of 500+ servers - Created custom monitoring and alerting solutions for specialized business requirements Work Approach I believe in proactive infrastructure management with a focus on: - Building systems that are reliable, secure, and scalable - Implementing automation to reduce human error and increase efficiency - Maintaining comprehensive documentation for all systems and procedures - Regular security audits and updates to minimize vulnerabilities - Clear communication and transparency throughout the project lifecycle With expertise across multiple Linux distributions (CentOS, Alma/Rocky, Ubuntu, CloudLinux, Debian, Slackware) and a proven track record of managing critical infrastructure, I can help your business implement robust, secure, and efficient systems that support your technology goals.

System administrator for various Linux distributions, database and network administrator. Managing complex deployments for python, php, java and nodejs. Security technology specialist with over 15 years of experience in wide areas of network engineering and management, cyber and systems security, software and web development, cloud computing. Dedicated to improving critical thinking and providing best solutions and results. Able to adapt to changing priorities and maintain a positive attitude and strong work ethics. * Worked on various vpn implementation project for financing and banking industry (payment gateways, SIP implementation, etc.), gateway and remote access for both Unix and Windows servers * Experience with various vpn platforms (pfsense/opnsense, vyatta, vyos, openvpn, wireguard, shadowsocks, Unix based vpn, etc.) * PCI compliance specialist, able to deliver quality in short time * Strong troubleshooting network and routing problems skill * ElasticSearch cluster and replication, logstash, kibana and indexing strategies specialist

i am a System Administrator with more than 15 years experience. - specialized in Cloud, AWS, Linux, Rackspace. - i can offer a wide area of expertise from small installs to complex deploys, geographically distributed, - i can offer full IT services - monitoring services, active/proactive monitoring, alerting, security audit, IDS, production architecture design and implementation.

11 years Linux expertise, passionate about all IT areas and projects. Software, Networking and Hardware skilled.

As a senior linux system administrator with over 15 years of experience, I possess a wealth of knowledge and expertise in all aspects of Linux server administration, configuration, and management. I have different certifications from Udemy, Cisco Networking Academy, AWS and cPanel. I have honed my skills over the years and I am well-versed in using various tools and technologies related to Linux, including Ansible, DigitalOcean, AWS, and cPanel. My extensive experience in Linux system administration has allowed me to develop an in-depth understanding of how Linux servers work and how to optimize their performance to meet business needs. I am proficient in installing, configuring, and managing various Linux distributions and have a solid understanding of networking, security, and server management concepts. In addition to my daily job as a Linux system administrator, I also take freelance projects in my free time. I'm always looking for new challenges and opportunities to expand my knowledge and skills, and I stay up-to-date with the latest developments in Linux and related technologies. Technologies I'm familiar with: CentOS, Redhat, Ubuntu, Debian, Postfix, MySQL, MariaDB, Apache, Nginx, Varnish, Haproxy, Iptables, Zabbix, Nagios, Cacti, Icinga2, Grafana, Elasticsearch, Kibana, Docker, Kubernetes, Odoo, CWP, VestaCP, Plesk, cPanel, Virtualmin, Proxmox, Opennebula. Overall, I am a highly skilled and experienced Linux system administrator who is committed to delivering top-quality services to clients and ensuring the smooth and efficient operation of Linux servers.