12+ years professional Linux (Ubuntu/Red Hat/Debian/CentOS/Alma/Rocky/Suse/CloudLinux) and system administration 6+ years experience with Amazon AWS/Digital Ocean/Google Cloud/Azure cloud providers 12+ years Apache, Nginx, Mysql server administration Extensive knowledge managing Apache, Nginx, MySQL, DNS, Cloudflare, SMTP, FTP, SSH Email Deliverability expert Server migration specialist Server optimization expert Wordpress optimization expert Excellent troubleshooter

Over 7 years of dedicated experience as a Linux administrator. Proficient in working on projects and expertly troubleshooting/managing various aspects, including: Linux distributions: Debian, Ubuntu, CentOS, AlmaLinux. Virtualization technologies: VMware, Proxmox, Xenserver, KVM/Libvirt. Hosting environments: WHM/cPanel. Cloud services: AWS EC2, RDS, S3, and Route 53. Network services expertise includes: DNS management: Record configuration, zone transfers, security enhancements (SPF, DKIM, DMARK) to ensure mail servers send/receive mail without triggering spam filters. VPN setup: Efficiently establish, manage, and troubleshoot OpenVPN and IPsec configurations. Mail server setup: Proficient in configuring Exim or Postfix, Dovecot, and MX records. Linux services mastery: Skilled in managing BIND9, Exim4, Postfix, Dovecot, OpenVPN, Squid, Apache2, Nginx, and Samba4. Proficient in deploying iptables and various packages for effective firewalling. Scripting capabilities: Adept with both Bash and Python scripting languages. Network troubleshooting: Skilled in using tools like Wireshark, TCPdump, and others for accurate diagnosis. Firewalls proficiency: Expertise with SonicWall, Sophos, FortiGate, NethServer, PfSense, and MikroTik. SSL certificates management: Able to generate certificates using Let's Encrypt and effectively manage them with Certbot. SSH hardening: Proficient in generating public/private keys for SSH and fine-tuning configurations. Users/groups management: Skilled in efficiently managing user accounts, groups, and permissions. Linux clusters: Competent in setting up and managing Linux clusters. Storage management: Experienced in managing storage with LVM technology.

Are you looking for a Cloud, DevOps Engineer OR Linux system Engineer with expertise in automation and keeping it secure? Look no further! Hello, my name is Abhishek and I am a DevOps/Linux System Engineer with extensive experience in building cloud infrastructure, automating all the things, and keeping it secure while doing so. Here are some of my technical highlights: 🖥 Skills 🖥 🔅 Amazon Web Services: (VPC, EC2, ECS, EKS, RDS, S3, Route53, SNS, CloudWatch, LoadBalancing, AutoScaling, Lambda, ECR, etc.) 🔅 Digital Ocean: (Droplet, Spaces, Load Balancer, Volumes, Database, Monitoring, etc.) 🔅 Ansible: (ansible-playbook, Roles Structure, Ansible Vault, Jinja Template, Dynamic Inventory, etc.) 🔅 Scripting Language: (Bash & Python) 🔅 Operating System: (CentOS, Ubuntu, Debian) 🔅 Virtualization: (VirtualBox, VMware, Vagrant) 🔅 SSL Setup / Installation 🔅 Building Deployment Servers with parallel VPN tunnels to proprietary data centers. 🔅 Projects Deployment: PHP, Node.js, Java, Python(Django/Flask) 🔅 Containerization: Docker 🔅 Orchestration tool: Kubernetes 🔅 CI/CD pipelines(Jenkins, Github CI/CD, Gitlab CI/CD, AWS CodePipeline/CodeBuild, etc.) 🔅 Manage various configurations for dev, stage, and live environment with static and dynamic parts, HA, and backups 🔅 Performance monitoring and health check of applications As a Cloud/ DevOps Engineer, I believe in automation, reproducible infrastructure, and security. I have setup multiple DevOps pipelines for different tech stack - Java, Python, nodejs, laravel. I have 4+ years of experience in DevOps/Linux and can build out your infrastructure and automation with security in mind for whatever your needs are. Thanks

More than 15 Years of experience with Linux and Web hosting and Virtualization Linux , Centos , Debian , Vmware, Hyper-v, Docker, Cpanel/WHM, Plesk, WHMCS, Docker , Kubernetes, Terraform , Ansible Google Cloud Computing, Rackspace, AWS, Digital Ocean, Godaddy Apache, Nginx, PHP, SSL, Mysql, DNS, Firewalls, FTP, Mail Servers Atlassian Jira, Confluence, Stash, Fisheye, GIT Teamcity, Gitlab, Openldap Asterisk, Elastix, Freepbx, Cisco CUCM Cisco Networking, Routing, Mikrotik Lite Windows Server Administration,

System Administration: I have extensive experience working with Linux/Unix systems, including CentOS, Debian, Ubuntu, AlpineLinux, FreeBSD, as well as Windows Server. I have configured and maintained servers from various manufacturers such as HPE, DELL, IBM, Supermicro. Familiar with various hosting control panels: DirectAdmin, cPanel, Plesk, VestaCP/HestiaCP, CWP. Integration and Automation: I have deep knowledge of protocols on hosting servers: HTTP(S), DNS, FTP, SFTP, SSH, SMTP, IMAP. Developed and implemented integrations for optimizing and automating server infrastructure processes. Virtualization and Cloud Technologies: Significant experience with virtualization, including KVM (Proxmox, Libvirt), VirtualBox, OpenVZ, LXC, VMWare. Configured and managed virtual environments, aiming for maximum flexibility and efficiency. Networking Solutions: Proficient in maintaining networks on equipment from Juniper, Cisco, Mikrotik. Confidently configured VLANs and BGP, as well as controlled the operation of the network firewall to ensure security and stability. Telephony: I have experience working with SIP telephony systems, such as Asterisk, for setting up and supporting VoIP communication, ensuring reliability and quality of communication. Worked with FreePBX, including developing various integrations through its API. Programming and Scripting: Proficient in programming with PHP and JavaScript, successfully developed various modules and integrations for the WHMCS billing system. Familiar with Python and its use for task automation and script development to enhance work efficiency.

🏆 Top Rated 🏆 Computer engineer with experience over 11+ years as a Certified Linux Admin and 7+ years as a Devops. Excellent at developing and maintaining client/server applications. Expertise - *****AWS*****GCP***** AZURE*****Proxmox**** Linux (Certified) AI Engineer | Openclaw | LiteLLM | OpenwebUI ( almost every majorly used AI solutions, updated ) Setting up Agentic AI Proxmox and other VM specialist Firewall deployment (OpnSense ,Draytek etc) Backend and frontend app installation,management and maintenance. WordPress Developer Scripting (bash, perl etc) Docker, Kubernets, Helm Chart, Terraform, Ansible,Jenkins, Git etc PHP developer Python Developer cPanel/Hostinger/WHMCS/Plesk Streaming and OTT Mailserver configuration (Postfix, Dovecot etc) Proxy Servers WordPress optimization Everything related to Linux and Servers. Why should you hire me? + Strong frontend, backend architecture, and database knowledge + Delivering the products on/before time + High Quality of work + Always up-to-date with the latest technologies Soft skills: + Time management + Teamwork + Communication

10+ years of experience in Linux administrations along with CloudOps & DevOps skills Technical Skills: * SysOps - Linux Servers Administration - Bash Scripting - Apache, Nginx web servers, Applications setup, migration, and security - SSL certificate management - Monitoring tools - Nagios, Cloudwatch, Dogwatch, NewRelic, ELK - WordPress singe and Multi-site environment - Performance optimization of servers - Apache NIFI administration and flow management, monitoring * CloudOps - Migration from on-perm infrastructure to the cloud, generally reducing costs by 30% to 50%. - Infrastructure Creation and Management, Manage Security of Cloud Resources, Setup Load balancing, Autoscaling, WAF rules, Cost optimization/analysis * DevOps - Complete DevOps Strategy Planning and implementation - GitHub, GitLab, Bitbucket, Jenkins, GitLab, Bamboo - Azure DevOps, AWS Codebuild and Code deploy, Terraform, Cloudformation, Ansible, Secrets Manger, Hashicorp Vault and Consul - Docker, Kubernetes

I fix broken servers, harden insecure infrastructure, and deploy production-ready cloud environments on AWS, GCP, and DigitalOcean - typically within 48 hours. Top Rated freelancer. 100% Job Success Score. Clients bring me unmanaged VPS instances, misconfigured Docker containers, and infrastructure failing under load. I hand back hardened, fast, production systems running at 99.9% uptime. 𝐖𝐡𝐚𝐭 𝐈 𝐝𝐞𝐥𝐢𝐯𝐞𝐫: Server Rescue & Troubleshooting e-mergency fixes for crashed servers, disk failures, boot issues, data recovery on Linux (Ubuntu, Debian, CentOS, AlmaLinux) Security Hardening - SSH lockdown, iptables/UFW firewall configuration, SSL/TLS setup, VPN tunnels, system call auditing, and strict access controls Cloud Infrastructure - AWS (EC2, S3, RDS), GCP, and DigitalOcean architecture, migration, and cost optimization. Reduced cloud spend by 35% on past projects through right-sizing and Terraform (IaC) Docker & Kubernetes - container orchestration, Docker Compose stacks, Kubernetes cluster management, and production deployments for MERN, Python, and Java applications CI/CD Pipelines - GitHub Actions, GitLab CI, automated build-test-deploy workflows that cut manual deployment time by 80% Monitoring & Observability - Prometheus, Grafana dashboards, log analysis, and proactive alerting for performance visibility Self-Hosted Open Source - Nextcloud, Supabase, Coolify, and custom self-hosted stacks deployed and maintained on production VPS AI Infrastructure - deployment and configuration of AI tools, LLM pipelines, and GPU-accelerated workloads on cloud servers Recent client results: - Recovered critical data from a failed dedicated server disk (Contabo) under emergency timeline - Deployed and configured Nextcloud AIO with Talk HPB, fixing complex Docker networking and NAT issues - Built a Grafana/Prometheus monitoring stack with five containers and pre-built dashboards - Automated CI/CD pipelines for C++ and game deployment via GitHub Actions and AppVeyor - Set up high-availability PostgreSQL clusters for production environments I communicate clearly, respond within an hour, and document every step so you always know the exact status of your infrastructure. Available for project-based rescues and ongoing retainer engagements. Message me your server or infrastructure challenge; I'll scope a solution within hours.

I am a Linux Certified System Administrator with more than 5+ years experience configuring,managing and troubleshooting Servers and IT Infrastructure in Data Center Environment. Some of my expertise includes: ○ Linux Servers that includes Centos,RHEL,Ubuntu,Oracle Server ○ Virtualization platform Vmware,KVM,Proxmox,OpenStack and Power Virtualization ○ Private and Public Cloud Platform Vmware,OpenStack,Oracle PCA,AWS ○ Open Source technologies Docker, Ansible, Kubernetes ○ Web Hosting Platforms WHM,CWP,Plesk,CyberPanel ○ Webservers(apache,nginx), Email Servers(posfix,exim),DNS Servers(bind,powerdns) ○ Databases Technologies (MySQL,PostgreSQL,MariaDB) ○ Bash Shell Scripting ○ Networking Technologies Huawei,Cisco ○ Troubleshooting and fixing issues

Hi, I’m Sanjay — Top Rated DevOps & AWS Expert, Certified Linux Administrator, with 8+ years of hands-on experience managing servers, cloud infrastructures, and email systems. I specialize in deploying and maintaining secure, scalable, and high-performance environments for businesses of all sizes. Whether you need AWS infrastructure setup, email deliverability improvement, or Linux server optimization — I can help. Skills & Deliverables: Cloud Infrastructure Setup (AWS / DigitalOcean / Hetzner) Building secure, scalable environments with proper networking, storage, and automation. Server Administration (Linux-based systems) Performance optimization, monitoring, troubleshooting, log analysis, and uptime management. CI/CD & Deployment Automation Git-based deployments, zero-downtime releases, containerized workloads. Security & Compliance Firewall configuration, access control, TLS/SSL, patching, vulnerability prevention. Backup & Disaster Recovery Strategy Automated backups, retention policies, restore testing, failover planning. Application Hosting & Migration WordPress, Node.js, PHP apps — smooth migration without downtime. Email Infrastructure & Deliverability Improvement Domain authentication setup (SPF / DKIM / DMARC), inbox placement, fixing spam issues. Why Clients Choose Me Top Rated on Upwork with consistent 5-star performance Fast and clear communication — no miscommunication or delays Proactive monitoring and alerts (before issues impact users) Problem-solver mindset — I fix issues efficiently and permanently One of my recent projects involved building a fully containerized infrastructure on AWS using ECR + ECS (Fargate) with an automated CI/CD pipeline through CodePipeline & CodeBuild. This setup reduced deployment time from hours to minutes, improved uptime with zero-downtime deployments, and cut infrastructure costs significantly due to on-demand scaling.