I am Linux System Administrator with 5 years experience in all facets of server configuration, maintenance and monitoring, currently working as a full time Linux Sysadmin. Usually I get contracted for jobs in web hosting industry, virtualization, cloud. Here is included design, setup and monitoring from staging to production environments.

I’m a Linux systems administrator with solid industry experience, helping businesses build and maintain stable, secure, and high-performing server environments. I specialize in simplifying infrastructure for small and medium businesses and setting up cost-effective alternatives to expensive cloud services without compromising performance. What I Do: ✓ Setup servers. Optionally install and configure a control panel. ✓ Harden servers for high security and compliance requirements. ✓ Optimize servers for optimal speed and stability. ✓ Setup Web/Database/DNS high availability clusters for auto-replication and redundancy. ✓ Improve email deliverability (SPF/DKIM/DMARC/IP Reputation Management). ✓ Install SSL certificates, configure Firewall, and fail2ban/LFD for brute force protection. ✓ Perform server security audits and hardening, according to industry best practices. ✓ Configure backups (scheduled/real-time). Plan and execute Disaster Recovery. ✓ Plan and perform server migrations. Migrate websites with minimal downtime. ✓ Setup Content Delivery Network (CDN) and Web Application Firewall (WAF). ✓ Mitigate DDoS attacks using NGINX/Apache, fail2ban, CSF and iptables. ✓ Install and configure Apache, NGINX (as a backend or reverse proxy), Varnish cache, Redis, Memcached, and PHP Opcache for optimal performance and high traffic. How I Work: I tailor each setup to the specific client environment and business goals. I focus on clean, efficient architecture and proactive optimization to ensure maximum uptime and predictable costs. Ongoing monitoring and maintenance are available under retainer. Typical Results: • Faster load times and improved reliability through optimized stacks • Reduced monthly infrastructure costs with efficient configurations • Better email reputation and lower spam rates • Hardened, compliant servers resistant to attacks and misuse Technical Expertise: • Operating Systems: CentOS, RHEL (AlmaLinux/Rocky Linux/CloudLinux), Debian, Ubuntu, Linux. • Commercial Control Panels: cPanel/WHM, Plesk, DirectAdmin, InterWorx, ISPmanager. • Free Control Panels: HestiaCP, ISPConfig, CentOS Web Panel, Webmin. • Content Management Systems: WordPress, Drupal, Magento, Joomla. • Server Stacks: Apache, NGINX, PHP-FPM, MySQL, MariaDB. • Email software: Exim, Postfix, Dovecot, SpamAssassin, RBL. • Server Software: JetBackup, rsync, lsyncd, rclone, Linux Malware Detect. • Cloud/Server Security Solutions and CDN: Cloudflare, Sucuri, Imperva, ModSecurity WAF. • Anti-SPAM gateway and software: Scrollout F1, EFA (Email Filter Appliance), MailScanner. • Cloud Services: Amazon Web Services, Microsoft Azure, Digital Ocean, Linode, Vultr, Google Cloud Platform, OVH, Hetzner, Liquid Web, and others. I’m enthusiastic, highly focused, and dedicated to my work. I’m always ready to go above and beyond the call of duty. I know that communication is the key to success; if you have any questions or are ready to begin, please reach out to know how I can help.

🚀 AI Systems Architect for Business Automation, Efficiency, and Scale 🚀 I help businesses design and build agentic AI systems that automate processes, improve efficiency, reduce operational costs, and support growth. My approach is practical, meticulous, and built with scalability in mind from day one unless you specifically need a leaner MVP. I do not build gimmicks or fragile prototypes. I build systems that are designed to work in the real world, integrate properly with your business, and grow with you over time. Every project comes with its own unique challenges, and that is exactly what I enjoy most: solving difficult problems and turning them into clean, scalable systems that create real value. Whether you need AI agents, workflow automation, robust APIs, backend architecture, healthcare integrations, or secure infrastructure, I would love to help bring your project to life. 🤖 AI Automation Platforms and Agent Frameworks 🤖 I work with a wide range of modern AI and automation platforms to help businesses build practical systems that save time, reduce manual work, and create better customer experiences. My focus is not just on using AI tools for the sake of it. My focus is building systems that help businesses generate value, improve workflows. ✅ OpenAI ✅ Claude ✅ LangChain ✅ LangFlow ✅ n8n ✅ Node-RED ✅ OpenClaw ✅ Zapier I use these platforms to build: ✅ AI-powered customer workflows ✅ Lead qualification and inbound automation ✅ Internal business process automation ✅ Multi-step agent workflows ✅ AI assistants connected to business tools and databases ✅ Custom integrations between AI systems and existing software ✅ Automated sales, support, and operations pipelines ✅ Customized Agents & Tools ✅ Model Context Protocol Servers & Clients Here is how I typically use these tools in practice: OpenAI and Claude for advanced reasoning, structured extraction, customer interaction flows, internal assistants, and decision-support systems. LangChain and LangFlow for structured AI pipelines, agent workflows, retrieval systems, modular LLM applications, and scalable orchestration. n8n and Node-RED for workflow automation, system integrations, triggers, customer journeys, business rules, notifications, and connected automation systems. OpenClaw for projects where alternative AI tooling, orchestration, or custom agent infrastructure is needed as part of a broader automation stack. 🛠️ What I Help Businesses With 🛠️ ✅ AI agents to automate business processes ✅ Multi-agent systems and workflow orchestration ✅ API development and integrations ✅ Process automation and operational optimisation ✅ Scalable backend architecture ✅ Secure, containerised deployments ✅ Data pipelines, intelligent tooling, and structured systems ✅ Business systems that improve efficiency and customer experience 🔌 API and Communication Expertise 🔌 I build APIs and communication layers using: ✅ GraphQL ✅ WebSockets ✅ HTTP REST ✅ HTTP RPC ✅ gRPC ✅ Raw Protocol Buffers ✅ OpenAPI specification and documentation 🏥 Healthcare and Regulated Systems Experience 🏥 I am trusted in the public health sector by NHS OUH to deliver specialist development services involving the new Clinisys WinPath and HL7. I also work with: ✅ HL7 ✅ FHIR ✅ Patient-hospital communication systems ⚙️ Infrastructure, DevOps, and Systems ⚙️ ✅ Kubernetes ✅ Docker and containerd ✅ Docker registries including GitLab Registry and Harbor ✅ GitLab ✅ CI/CD pipelines ✅ Vector, SQL, NoSQL, and key-value databases ✅ Advanced Linux system administration ✅ Security-conscious architecture ✅ Database design of all kinds ✅ Containerisation across Linux and WSL, always with scalability in mind from the start ✅ Proxmox (Virtualization Platform) 💻 Primary Languages 💻 ✅ Rust ✅ Python ✅ JavaScript ✅ Dart ✅ CSS 🤝 What You Can Expect From Working With Me 🤝 ✅ Clear communication ✅ Fast turnaround ✅ High-quality engineering ✅ Scalable thinking from the start ✅ A strong problem-solving mindset ✅ Clean, maintainable systems built for long-term use I work quickly without compromising quality, and I care about building solutions that are worth deploying, not just worth demoing. If you are looking for someone who understands both the technical depth and the business value of AI systems, I would be glad to work with you. If you want, I can also tighten this into a more premium Upwork version that sounds a bit more high-ticket and polished for attracting bigger clients.

I provide expert-level administration for complex server infrastructures across all major cloud and bare-metal platforms. I specialize in bridging the gap between legacy systems (VoIP, Proxy) and modern automation (IaC, AI Agents). Core Tech Stack: Cloud & Hosting: AWS, Azure, Linode, DigitalOcean, Hetzner, Contabo. Automation/DevOps: Ansible, Terraform, Jenkins, GitHub. Control Panels: cPanel & WHM, HestiaCP, VestaCP, Webmin. Specialized Systems: 4G Proxy & OpenClew, VoIP, AI Agent Infrastructure. Network Services: DNS Management, Cloudflare, High-Performance Web Servers.

With 12 years of experience starting from Full-Stack Development (2014) to Senior DevOps (2018), I bridge the gap between code and infrastructure. I specialize in the 'Trifecta': Bare Metal Performance, Containerized AI Workloads, and Proactive Security. I don't just fix servers; I build resilient, automated environments that scale with your product. I would be very happy if you could see the actual condition of your server and optimize it as efficiently as possible. Experience in problem solving on linux server while server as Web Server, DB server, shared hosting (WHM/ cpanel or native ), mail server, file server, DNS server, monitoring server or other app. With 5++ years experience on devops and server infrastructure. Also become web development since 2014, I will help you to deploy your website, troubleshooting error and optimization. My strengths are: 1. Server kind, i.e : baremetal, Openstack architecture, VMware, Openshift, VPS / VM, Container (Docker/ LXC), Docker compose, Cloud Computing (AWS, digital ocean, Google cloud, etc), Shared hosting (VestaCP, ISP config, WHM, Plesk, cyberpanel) 2. AI infrastucture and automation. 3. Server management and monitoring with technology, e.g : NGINX, APACHE2, BIND DNS, mysql, postgresql, librenms, grafana, prometeus, elk, Zimbra, DOCKER, traefik, LXC, WHM / CPanel, PHP-FPM, docker-compose. 4. PHP OOP, MVC, HMVC programming. Native or framework (Laravel , CodeIgniter, Wordpress) 5. Python apps 6. Database architecture. Mysql and MongoDB. 7. JavaScript/JQuery for Optimization UI. Browser side and asynchronous data processing used Ajax. 8. HCI infrastucture, VPS mode, lxc container, docker container. 9. Web service security implementation/improvement on Application-level. Protection against SQL injection, XSS and request forgery/spoofing. Captcha ready solutions. 10. Honeypot technology (Glastopf and all about attack on web server) 11. Using GIT or SVN.

I can install and configure your Dedicated Server or VPS, Virtualize or perform any other service on Linux or Windows that you request. I make initial configurations from scratch of any kind on physical, dedicated and Virtual Servers such as; Installations, Updates, Optimizations, Migrations, Backups, Monitoring, Load balancing, DNS, VestaCP, ISPConfig, Plesk, WHM / cPanel, DirectAdmin, Security, Wordpress, Anti-Dos Protection, Anti-DDoS, Anti-Slowloris, Anti-Flooding among others such as Virtualizations of any kind and more. Linux A to Z Configuration, Management & Troubleshooting. More of 10 years in production. Specialization: OS Platform: Centos, Ubuntu, Debian, Redhat and more. Virtualization: OpenVZ, KVM, XEN and related. Control Panel: cPanel, DirectAdmin, VestaCP, ISPConfig, Plesk, Kloxo and more. Firewall: Linux iptables, CSF, UFW and related. Network Protocols: TCP/IP, IPv6 Network Services & Servers: Apache, nginx, php-fpm, proftpd/vsftpd, MySQL/MariaDB, postfix and others System and software Configuration, Installation, Optimization, Server Hardening I am open and honest, if I feel I am unqualified, I will not go any further without discussion, and I work well coordinating with others. I am hard-working and have a high sense of responsibility.

✏️ TOP RATED PLUS WITH PROVEN 10+ YEARS EXPERIENCE IN SERVER ADMINISTRATION & DEVOPS ✏️ 5 STAR REVIEWS ALL THE TIME ✏️ ASSURED PROFESSIONAL WORK ✏️ FANTASTIC WEEKEND SUPPORT ✏️ GOOD AVAILABILITY IN USA WORKING HOURS ✏️ TIGHT DEADLINES, YOU ARE ON THE RIGHT PROFILE ✏️ 07 DAYS FREE MAINTENANCE/SUPPORT AFTER COMPLETION OF ASSIGNMENT. Linux & Windows Server Administrator with more than 10 years of Experience. - Amazon Web Services (AWS), Google Cloud Platform (GCP), Microsoft Azure, Alibaba Cloud, DigitalOcean, Linode, OVH, Vultr, Rackspace, Hetzner, Oracle Cloud, Kamatera, Contabo, Scaleway, InterServer, Liquid Web, Hostinger, BlueHost, HostGator, GoDaddy, Media Temple, Namecheap, DreamHost, SiteGround, A2 Hosting, InMotion Hosting, iPage, GreenGeeks, AccuWeb Hosting, TMDHosting, FastComet, Cloudways, WP Engine - Docker, bastion host, Kubernetes, Ansible - Apache, IIS, Nginx, Tomcat, Varnish, Mod_pagespeed - Control Panel: cPanel, WHM (WebHost Manager), Plesk, DirectAdmin, Webmin, Virtualmin, VestaCP, ISPConfig, Ajenti, CentOS Web Panel (CWP), CyberPanel, Froxlor, Ensim, InterWorx - OS: CentOS, Debian, RHEL, Ubuntu, Windows Server. - Mail Server: Exim, Postfix, Sendmail, PowerMTA, InterSpire, Sendgrid - Database: Mariadb, MySQL, SQL Server, PostGreSQL - DNS: Domain management, MX, CNAME, SPF, DKIM, TXT, Cloudflare, CDN firewalls - WebSite Setup, Optimization and Migration Support for Wordpress, Joomla, Net, Magento, Xcart, Opencart based websites - Experience with Chef, Puppet, Docker or similar applications - SSL Setup, Website Security, Server Hardening, Windows Linux Maintenance Troubleshooting, and Monitoring. #LinuxAdministrator, #WindowsServerAdministrator, #SystemAdministrator, #DevOpsEngineer, #CloudEngineer, #AWS, #Azure, #GoogleCloud, #Docker, #Kubernetes, #Ansible, #Terraform, #Apache, #Nginx, #cPanel, #Plesk, #ServerMigration, #ServerHardening, #SSLConfiguration, #PowerMTA, #Postfix, #EmailDeliverability, #WordPressSupport, #WebHosting, #Virtualization, #VMware, #HyperV, #BashScripting, #MySQL, #DNSManagement, #Cloudflare #SillyTavern

Linux & Windows Server Administrator with more than 14 years of Experience. - Amazon, OVH, BlueHost Digital Ocean, Godday, Hostgator, Linode, Media Temple Google Cloud, Windows Azure, Alibaba, Shared and Dedicated hosting expert - Docker, bastion host, Kubernetes, Ansible - Apache, IIS, Nginx, Tomcat, Varnish, Mod_pagespeed - Control Panel: Cpanel, WHM, Plesk, Ensim, Webmin, Virtualmin, VestaCP, Vmware, Hyper-v. - OS: CentOS, Debian, RHEL, Ubuntu, Windows Server. - Mail Server: Exim, Postfix, Sendmail, PowerMTA, InterSpire, Sendgrid - Database: Mariadb, MySQL, SQL Server, PostGreSQL - DNS: Domain management, MX, CNAME, SPF, DKIM, TXT, Cloudflare, CDN firewalls - WebSite Setup, Optimization and Migration Support for Wordpress, Joomla, Net, Magento, Xcart, Opencart based websites - Experience with Chef, Puppet, Docker or similar applications - SSL Setup, Website Security, Server Hardening, Windows Linux Maintenance Troubleshooting, and Monitoring. And More.

Hacked WordPress site? I remove malware completely, fix reinfection issues, and secure your website so it doesn’t get hacked again. Key Metrics & Achievements: 🏆 Top Rated Contractor - 100% Job Success Score ⭐ 16+ Years Proven Track Record in Server Management 🔧 Available 24/7 Including Weekends & Emergency Support Hi, I'm Mahesh, your trusted partner for bulletproof server security and lightning-fast website performance. I help businesses, agencies, and entrepreneurs maintain secure, high-performing web infrastructure while eliminating security threats that could cost you thousands in downtime and reputation damage. With 16+ years of hands-on experience, I've secured and optimized servers for companies, growing startups, and everything in between. I'm also the founder of a specialized server security team where we focus on proactive monitoring, malware elimination, and performance optimization. If Google is flagging your site, visitors are being redirected, your host suspended you, or you're seeing pharma / Japanese-SEO spam, that's almost always injected scripts plus hidden backdoors. I've cleaned this exact situation many times. WHAT YOU GET - Full file + database scan and complete malware/backdoor removal (not just the obvious files - leftover backdoors cause reinfection) - Google blacklist + 'this site may be hacked' warning cleared - A root-cause report: how it got in, so it stops happening - Hardening: firewall (ConfigServer/ModSecurity), logins, file permissions, updates 🛠️ Technologies & Tools: 🖥️ Server Administration: Linux (CentOS, Ubuntu, RHEL), WHM/cPanel, VestaCP, DirectAdmin, Plesk, CloudPanel 🖥️Security & Monitoring: Imunify360, ConfigServer Firewall, Fail2Ban, ModSecurity, Malware Scanners, SSL/TLS Management 🖥️Cloud Platforms: AWS (EC2, S3, RDS, CloudFront), DigitalOcean, Linode, Vultr, Cloudways, Google Cloud 🖥️Development & Databases: PHP, Python, Bash Scripting, MySQL, MongoDB, PostgreSQL, Redis 🖥️DevOps & Automation: Docker, Git, Jenkins, Ansible, Monitoring Tools (Nagios, Zabbix), Load Balancers 🖥️Web Technologies: Apache, Nginx, Node.js, WordPress, Magento, Laravel, CodeIgniter Message me today and let's fortify your servers with enterprise-grade security and performance optimization. Always available for urgent security incidents - response within 30 minutes, 24/7

Need help with cPanel, Plesk, WordPress, server migration, malware cleanup or email issues? I have 9+ years of experience managing production Linux servers and resolving critical hosting problems quickly with minimal downtime. My role is to: * Linux - Troubleshooting various issues by checking logs - OS : CentOS, Debian, Ubuntu. * Hosting server - Harden dedicated server, node, vps for its best performance. * CMS - WordPress, Joomla, Drupal, Magento. * Virtualization - OpenVZ/Virtuozzo, VMware, Xen, KVM * Networking - To configure network, add/remove IP address * DNS - Bind/named, configure custom and registrar nameservers * VPN - OpenVPN, configuration of squid proxy servers * Firewalls - Iptables, CSF, APF * Web servers - Apache, Nginx (standalone), Nginx Admin, Lighttpd, Tomcat * E-mail servers - Exim, Postfix, Qmail, Courier- dovecot * Anti-spam/antivirus - ClamAV, Maldet, SpamAssassin * Bulk email marketing - DKIM & SPF, tweaking SpamAssassin * Automation - Experienced in bash/shell scripting * Monitoring Tools - Nagios, Zabbix, Pingdom My other skills are given below ================== Amazon Web Services (AWS) ================== - AWS EC2 Server setup - Management and troubleshooting - S3 Buckets - AWS Lightshail Server - AWS SES Email Setup (Configuration in Sendy) ================== Webhosting Control Panel ================== - cPanel/WHM, Plesk, Centos Webpanel, VestaCP, ZPanel, Kloxo, Webmin/Virtualmin, CyberPanel - Any free or paid control panel installation + Setup - cPanel installation and configuration - Server Hardening the security - Manage Linux server on monthly bases - Server Migration ================== WordPress ================== - WordPress Server Setup - WordPress Migration - WordPress Malware Removal - WordPress Virus Removal - WordPress Security - Import demo contents - WordPress Backup/Restore - WordPress and WHMCS integration ================== Linux Server Management ================== - Setup and manage AWS or Google Cloud Server/Google Cloud Platform - AWS, GCP, Digitalocean, Linode, Vultr, OVH, Contabo, 1and1, VPSDime, etc... - Godaddy, Hostgator, BlueHost, Siteground, Namecheap, etc.. - Linux ( RHEL, CentOS, Ubuntu,Debian ) - Database Administration (MySQL,PostgreSQL, MariaDB, MongoDB) - DNS Server (Bind, NSD, PowerDNS ) - Web Server (LAMP, LEMP) ==================