Hire the Best Linux System Administrators

I'm Nevin Davis, I have a degree and diploma in Computer Science and Engineering. I'm a redhat certified engineer with 8 years of experience as a server administrator. My strengths and skills are:- * Well knowledge in AWS, Google Cloud, Azure... etc * Sound knowledge in Linux/Unix like operating system. * Deep knowledge in cPanel/WHM. * Familiarize with Plesk, Interworx, Website Panel, Webmin, Directadmin, CyberPanel, HestiaCP. * Automated installation of Red Hat Enterprise Linux. * Network configuration and troubleshooting. * Server hardening. * Managing partitions and file systems. * Managing flexible storage with LVM. * User Management & Administration. * Managing selinux. * Basic creation and troubleshooting on scripting like Shell/Perl. * Installing and managing softwares. * Managing installed services. * Kernel re-configuration & parameter tuning. * Installation of patches and packages. * File sharing with FTP. * NFS configuration & administration. * Job Scheduling and Automating process using CRON. * XEN, OpenVZ virtualization. * RAID * Idera Back up server management. * Familiarize web servers- Apache, Litespeed, Nginx. * Deep knowledge in SolusVM. * Migration. * SSL Cert generation, installation. * IPMI, KVM console management. * Billing Module Management(whmcs,vision,osticket) * VPS, Shared and Dedicated server Management * Monitoring (Nagios) & troubleshooting with performance related issues. * Installation of Antivirus and Troubleshooting with virus related issues.

I have 16+ years experience and I save you time & money with my meticulous work & advice for going forward. I've worked for individuals, businesses, startups and 501(c)(3) non-profits. Skills and experience include: • All aspects of WordPress, including PHP, jQuery, HTML and CSS, Genesis and custom themes, Bootstrap CSS and Javascript, and Advanced Custom Fields (ACF), SMTP and forms • DNS: configuration of all DNS records A, AAAA, CNAME, TXT, etc. at all DNS providers. SPF, DKIM and DMARC record configurations to ensure email deliverability for email providers such as Google Workspace and Office 365, and third-party email services such as Constant Contact, MailChimp, Hubspot, Klaviyo, Keap/Infusionsoft, etc. • Cloudflare: WAF firewalls and security, page rules and rate limiting, DNS configurations, SSL setup, country blocks, static hosting. • Technical SEO: Yoast and All in One SEO, XML sitemaps and the Google Search Console and Analytics. • Linux server administration (Ubuntu, AlmaLinux, Debian): Apache Nginx Litespeed, MySQL/MariaDB, PHP configurations, security and performance, Let's Encrypt SSLs. • Paid Memberships Pro setup and customizations. • Web hosts: WP Engine, Linode, Cloudways, Digital Ocean, Liquid Web, Kinsta, Pantheon (git), Flywheel, Pressidium and Amazon AWS. • Migrations from Joomla, ExpressionEngine, Drupal, Hubspot, TypePad, Movable Type, Blogger, Wild Apricot, and migrations from "plain" PHP & MySQL sites.

🎯 100% Refund If I set the wrong expectations and can’t deliver. No questions asked. Top-Rated Plus, Upwork Top 1 Percent, Highly recommended. What do I offer: 1- 100% work satisfaction 2- 24/7 Support 3- On-time delivery 4- Enterprise quality 5- 15 Days of free support after completion of the project Cloud Architect with 10+ years of DevOps experience, specializing in scalable, platform-agnostic cloud infrastructures. Proven track record in high-scale environments. Proficient in Infrastructure as Code, automation, and scripting, with expertise in CI/CD, Cloud Services, and Infrastructure Automation. Skilled in building, deploying, and managing applications on AWS, GCP, Azure, and OCI, with a focus on robust monitoring and observability. ➜ Zazmic Inc, San Francisco, CA • Automation Tools: Terraform, Ansible • Cloud Platforms: GCP • Containerization: Docker, Helm charts • CI/CD: GitLab CI • Monitoring: HPA, Cloud Armour • Databases: Different kinds of databases on GCP ➜ Tripleseat, Concord, Massachusetts • Cloud Platforms: Azure, GCP • Containerization: Docker • CI/CD: Azure Pipelines, Azure DevOps • Monitoring: Grafana, Prometheus ➜ Century Communities, Inc., Greenwood Village, CO • Cloud Platforms: AWS, Oracle Cloud • Automation Tools: Lambda functions, Ansible • Containerization: Docker, AWS ECS, EKS • CI/CD: CircleCI, GitHub Actions, AWS CodePipeline • Monitoring: CloudWatch, CloudFront ➜ Summary: • Proficient in Kubernetes, I architect and manage clusters to facilitate agile and scalable application deployment. • Skilled in Infrastructure as Code (IaC), I employ Terraform, Ansible, and Chef to automate configuration and ensure uniform environments. • With hands-on experience in CI/CD pipeline creation and maintenance using Jenkins, GitLab CI, and Azure DevOps, I ensure the efficient and reliable delivery of software products. • Possessing a robust background in Linux/UNIX system administration, including expertise in managing RHEL environments. • Armed in scripting with Bash and Python to streamline automation processes and optimize operational efficiency. • Good Know how of monitoring and logging tools such as Elasticsearch, CloudWatch, Prometheus, and Grafana, enabling proactive monitoring of infrastructure and application health. • Experienced in VMware virtualization, proficiently managing VMs, executing V-motion operations, and maintaining Snapshots. • Adaptable to fast-paced 24/7 production environments, providing responsive on-call support, including weekends. • Successfully deployed and managed scalable microservices on Kubernetes clusters across GCP and AWS platforms. • Expertise extends to migrating on-premises workloads to the cloud, focusing on performance optimization and cost efficiency. • Possess proactive problem-solving and troubleshooting skills essential for maintaining high-quality production environments. • Strong communication and collaboration abilities, facilitating effective bridging of the gap between development and operations teams. ➜ Tools: Git, Ansible, AWS CloudFormation, ELK, GitLab, GitLab CI/CD, Terraform, Docker Compose, Grafana, Telegraf, CircleCI, Traefik, Amazon CloudWatch, Amazon Elastic Container Service (Amazon ECS), GitHub, VPN, AWS Fargate, Amazon CloudFront CDN, AWS IAM, Amazon Virtual Private Cloud, Docker Swarm, NGINX, Puppet, Jenkins, Amazon EKS, Amazon Simple Queue Service, RabbitMQ, Celery, TeamCity, Nagios, Makefile, AWS CodeDeploy, Confluence, AWS CodeBuild ➜ Platforms: Linux, Docker, Amazon Web Services, AWS Elastic Beanstalk, Amazon EC2, Kubernetes, AWS Lambda, Windows, Apache Kafka, JVM, Heroku, Azure, WordPress, New Relic, Windows Server, Google Cloud Platform, Blockchain, Rancher ➜ Storage: Amazon Aurora, Amazon S3, MySQL, MongoDB, InfluxDB, Redis, On-premise, Amazon DynamoDB, Redis Cache, Elasticsearch, MySQL, Databases, PostgreSQL ➜ Languages: Python, Bash, Java, PHP, Markdown, Go, JavaScript, SQL, TypeScript ➜ Frameworks: Flask, Django, Windows PowerShell, .NET, Serverless Framework ------------------------------------------------------------------------------------------------------ #CloudArchitect #DevOps #Kubernetes #Terraform#Azure #GCP #Docker #CI_CD #InfrastructureAsCode #CloudMigration #DevOpsEngineer #Automation #CloudInfrastructure #Microservices #CloudSecurity #NetworkSecurity #AWSCloud #AzureCloud #Serverless #AWSLambda #AzureDevOps #GitLabCI #GitHubActions #Linux #Unix #Bash #Python #GoLang #Java #Git #Ansible #Jenkins #NGINX #ApacheKafka #Databases #SQL #MySQL #PostgreSQL #MongoDB #Redis #DynamoDB #CloudStorage #S3 #CloudWatch #BackendInfrastructure #WebInfrastructure

👨‍💻 Experienced IT Lead | Cloud & DevOps | Infrastructure & Security Specialist With over 8 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.

My experience in the VOIP domain has been for 17 years. My customer satisfaction is my goal. I have extensive experience with Asterisk/Kamailio systems, as well as Linux and network administration. I have the ability to do advanced troubleshooting . Website : my.itcallinfo.info My expertise on this: * Asterisk, Kamailio, OpenSips, FreePBX, A2billing, SIP, H323, IAX, Webrtc, hylafax, Asterisk-Pannel, iaxmodem, rtpproxy, MediaProxy, WebRTC, SipML5, SMS API, IVR (Interactive Voice Record),Wireshark *AI Agent, STT,LLM,TTS, LiveKit, Pipecat, ElevenLabs * IP routing, router configuration (cisco, iptables routing), switch, Vlan, VPN (Ipsec linux, cisco vpn, fortigate, OpenFire). * Fail2ban, Iptables, OpenSwan, Squid, Cisco FirePower, Vmware, Proxmox * Php, Mysql, Postgresql, sqlite, Mongodb, Bash , LUA , Java, AGI, AMI * Roundcube, Zimbra, Zabbix, Smokeping, munin, Nagios, Cisco NetFlow, Voipmonitor * Git, Ansible, bitbuket, atlassian My time is my value. So when you choosing me you can expect that job will be done in short terms and perfect. I don't like to do something that not need be done. @linkedin linkedincom/in/alaeddine-hertelli/

# Email Deliverability & Web Hosting Expert | 20+ Years Linux Administration With over 20 years managing complex IT infrastructures, I specialize in email server administration and web hosting optimization for hosting providers, agencies, and enterprises worldwide. Based in Miami Beach, Florida, I deliver enterprise-grade solutions 100% remotely. --- ## 🎯 Core Expertise **Email Deliverability & Infrastructure** - SPF, DKIM, DMARC configuration and troubleshooting for maximum inbox placement - Google Workspace setup, migration, and management - Postfix, Exim, PowerDNS for high-volume sending environments - Deliverability diagnostics with MXToolbox, Google Postmaster Tools - Spam complaint reduction and sender reputation management **Web Hosting Administration** - cPanel/WHM certified (8+ years, 2017-2025) - CyberPanel and OpenLiteSpeed optimization - Multi-server infrastructure managing 500+ accounts - Zero-downtime migrations for websites and databases - Performance optimization (40-50% faster load times) - Apache, Nginx, LiteSpeed configuration **Linux Server Management** - 20+ years with Rocky Linux, Ubuntu, CentOS, Debian - MySQL/MariaDB optimization and replication - PHP version management (OPcache, PHP-FPM) - Proxmox VE virtualization and clustering - Bash/Python automation scripts - Automated backups and disaster recovery **Security & Hardening** - Server hardening and security best practices - Imunify360 and CSF Firewall implementation - SSL/TLS automation (Let's Encrypt, commercial CAs) - Malware removal and prevention - Security audits and compliance (PCI-DSS, GDPR) **DNS & Cloud Infrastructure** - DNS management and PowerDNS configuration - AWS, Azure, OVH, DigitalOcean deployment - Load balancing and high-availability setups - CDN integration and monitoring **AI & Development** - AI Claude Code developer (2+ years) building AI-assisted automation and workflows - Node.js application development and backend services and API - Google Antigravity development --- ## 💼 Proven Results ✅ Managed 500+ accounts with 99.9% uptime ✅ Reduced spam flags by 30% ✅ Cut server response times by 40% ✅ Decreased emergency tickets by 60% ✅ Zero-downtime migrations consistently delivered --- ## 🛠️ Technical Stack **Control Panels:** cPanel/WHM, CyberPanel, Plesk **Email:** Google Workspace, Postfix, Exim, PowerDNS **Web Servers:** Apache, Nginx, LiteSpeed **Linux:** Rocky Linux, Ubuntu, CentOS, Debian **Cloud:** AWS, Azure, OVH, DigitalOcean **Security:** Imunify360, CSF, fail2ban **Databases:** MySQL, MariaDB, PostgreSQL **Automation:** Bash, Python, Ansible **Languages:** English, Spanish, Portuguese, Italian --- ## 👥 Who I Work With **Hosting Providers:** Multi-server management, support escalation, optimization **Marketing Agencies:** Email deliverability, WordPress optimization **E-commerce:** PCI-compliant hosting, high-availability **SaaS Companies:** Scalable infrastructure, high-volume email **Developers:** Staging environments, Git deployment **Enterprises:** Google Workspace migration, compliance --- ## 🚀 Problems I Solve - Emails in spam folders - SPF/DKIM/DMARC errors - Slow website performance - Security vulnerabilities and malware - Multi-server management complexity - Zero-downtime migrations - Cost optimization - WordPress security issues - Database performance --- ## ✨ Why Choose Me ✔ **No Outsourcing:** I personally handle every project ✔ **Certified Professional:** cPanel administrator since 2017 ✔ **20+ Years Experience:** Deep Linux and hosting expertise ✔ **100% Remote:** Efficient worldwide delivery ✔ **Multilingual:** English, Spanish, Portuguese, Italian ✔ **Proactive:** Prevention over firefighting --- ## 📞 Let's Work Together I offer practical solutions for email deliverability, hosting optimization, migrations, and infrastructure management. **Available For:** - Project-based work - Monthly retainers - Emergency support - Audits and consulting **Location:** Miami Beach, Florida **Delivery:** 100% Remote **Response:** Within 24 hours Ready to solve your email and hosting challenges? Let's discuss your project.