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Senior Linux Systems Administrator with 20 years of experience delivering robust infrastructure solutions across multiple environments. I specialize in designing, implementing, and maintaining critical systems with a focus on reliability, security, and performance optimization. Core Expertise Load Balancing Solutions: Expert implementation of HTTP load balancing with Apache (including advanced caching mechanisms) and HTTP/TCP load balancing with HAProxy (featuring complex access control lists) Security Implementation: Automated SSL/TLS certificate management with seamless setup and renewal processes Database Administration: Comprehensive management of PostgreSQL and MS SQL Server environments Email Infrastructure: Advanced configuration of inbound/outbound email services using Postfix, Exim, and PowerMTA with DKIM signature implementation DNS Management: Strategic configuration and maintenance of DNS records for optimal routing and availability Messaging Systems: End-to-end RabbitMQ deployment and management Performance Optimization: Kernel-level tuning for application-specific hosts to maximize throughput and minimize latency I excel both as an independent consultant and as part of cross-functional teams, providing creative yet pragmatic solutions to complex infrastructure challenges. Recent projects include mail server implementations, Elasticsearch/Logstash/Kibana (ELK) logging solutions, and custom software integration. I approach each project methodically, prioritizing clear communication and delivering solutions that align precisely with your business requirements.

I’m an open-source infrastructure engineer and architect with over a decade of experience designing, building, and operating production-grade Linux platforms, distributed systems, and cloud environments. I specialize in solving complex infrastructure challenges, from automating large-scale deployments to architecting secure, resilient platforms for mission-critical workloads. I bring deep expertise in Linux systems engineering, hybrid cloud infrastructure, CI/CD automation, and DevOps tooling—paired with leadership experience in major open-source communities. I’ve co-founded and led infrastructure for Rocky Linux, contributed upstream to Fedora, OpenStack, and OpenELA, and built secure, scalable systems serving billions of monthly requests. If you need someone who can balance strategic architectural guidance with hands-on implementation, mentor teams, and apply open-source best practices to enterprise infrastructure, I can help. Key Skills and Specialties - Infrastructure leadership: Globally distributed team coordination, async-first workflows, standards-setting, and mentoring contributors. - Linux systems engineering: RHEL, Rocky Linux, Fedora, Debian/Ubuntu. - Cloud infrastructure: AWS (multi-region), GCP, hybrid/on-prem DC integrations. - CI/CD automation: GitHub Actions, Gitea (Forgejo), GitLab CI, Koji/Peridot build systems. - Infrastructure-as-Code: Terraform, Ansible, Packer, automated provisioning. - Secure systems design: UEFI Secure Boot signing enclaves, PKI/cryptographic workflows, threshold-based secrets management (k-of-n). - Networking: BGP, IPv6, firewalls, VPNs, segmentation, global traffic optimization. - Observability: Prometheus, Grafana, alert tuning/routing.

15+ years experience with Linux 5 years experience with CI/CD platforms 5 years experience with Kubernetes, OpenShift and containers 4 years experience with AWS and GCP Passionate and very experienced DevOps engineer and Cloud Architect. Very big fan of automation, infrastructure-as-a-code and containers. Very strong skills in troubleshooting and digging deeper. Accomplished a lot of automation tasks with OpenShift/Kubernetes on VMware vSphere, AWS, GCP and Azure including CI/CD (Jenkins and Gitlab), Terraform, Ansible, Ansible Tower, Prometheus stack, Elastic stack, Kong, Keycloak and many other things. Huge experience with OpenStack and Ceph. Spent two years deploying and maintaining production OpenStack and Ceph in multiple datacenters. Developed custom plugins for OpenStack using Python. In love with Python. Would love to learn Go as well. Professional Certifications: Red Hat Certified Architect in Infrastructure level V (2019) Red Hat Certified Engineer (2015) Red Hat Certified Engineer in OpenStack (2019) Red Hat Certified Specialist in OpenShift Application Development (2019) Red Hat Certified Specialist in OpenShift Administration (2019) Red Hat Certified Specialist in Ansible Automation (2019) Red Hat Certified Specialist in Ansible Best Practices (2020) Red Hat Certified Specialist in Hybrid Cloud Management (2020) Red Hat Certified Specialist in Ceph Storage Administration (2020) Red Hat Certified Specialist in Containers and Kubernetes(2021) Certified Kubernetes Administrator (2022) Certified Kubernetes Security Specialist (2021) AWS Certified Solutions Architect - Professional (2021) AWS Certified DevOps Engineer - Professional (2020) AWS Certified Advanced Networking - Specialty (2021) AWS Certified SysOps Administrator - Associate (2021) AWS Certified Solutions Architect - Associate (2018) Google Cloud Certified - Professional Cloud Architect (2021) GitLab Certified Professional Services Engineer (2021) GitLab Certified CI/CD Specialist (2021) GitLab Certified Associate (2021) Portworx Certified Admin (2021)

I am an active and self managed software engineer, eager to get his hands dirty solving challenging problems for organizations of all sizes. My past experience has given me vast knowledge into multiple different infrastructures (Nutanix AHV, vmware ESXi, OpenStack KVM, etc). With strong automation skills, I have architected an end to end deployment utilizing vRealize Automation & Orchestrator with deep integration with SaltStack and multiple vCenters. I managed to reduce the number of templates to manage along with a much more reliable provisioning and decom process. I have also repeated the same with Scalr, however instead of vCenter, I used Azure & OpenStack. In my part time, I have a hotel booking site I managed that I have hosted on Azure along with multiple other sites that I've hosted on GCP and AWS. I like to learn about what each product has to offer and utilize the strong points of each. I developed full stack applications along with simple micro-services with .NET C# / Django Python / Java. These applications varied from being simple websites with backend management to building sophisticated IP Address management tools and batch job like applications. Skills In: Automation: SaltStack, Scalr, vRealize, Cisco UCS Director, Chef, Rundeck Virtual Platform: vCenter, Acropolis, OpenStack Cloud Platform: Digital Ocean, AWS, GCP, Azure PaaS Platform: Pivotal Cloud Foundry, RedHat OpenShift Monitoring: New Relic, App Dynamics, Introscope, Spectrum, ExtraHop, Splunk Computer Languages: C#, Java, Python, JavaScript, C, Erlang Language: English / Arabic / French

System Administrator I work with virtualization, self-hosted services, storage and backups and on-premise cloud infrastructure. 🔹 Areas of Expertise: Virtualization 🔹 Proxmox HA clusters with Ceph storage for redundancy and scalability. 🔹 FreeBSD with vm-bhyve hypervisor. 🔹 XCP-ng. Networking & VPNs 🔹 Setting up and managing MikroTik and pfSense firewalls. 🔹 Configuring Wireguard and OpenVPN solutions for remote access across businesses. 🔹 GL-iNet travel routers for Digital Nomad VPN solutions. Self-Hosting & Custom Server Solutions 🔹 Managing self-hosted applications like Nextcloud, Seafile, and WordPress and others. 🔹 Configuring Nginx and Apache servers for web hosting. NAS & Storage Solutions 🔹 Setting up and managing TrueNAS, Synology, and Unraid. 🔹 Configuring ZFS-based storage solutions for redundancy and performance. 🔹 Implementing NFS, and SMB shares. Storage & Backup Strategies 🔹 Implementing Rsync, Rclone, and Syncthing for data synchronization and backups. 🔹 Managing ZFS-based storage for redundancy and backup. Remote Access & Virtual Desktop. 🔹Apache Guacamole, KasmVNC, NoMachine. Cloud 🔹 Working with AWS and Oracle Cloud. Technical Expertise: 🔹 Operating Systems: FreeBSD, Ubuntu, Debian. 🔹 Virtualization & Containers: Proxmox, vm-bhyve, XCP-ng, Docker. 🔹 Networking & Security: MikroTik, pfSense, WireGuard, OpenVPN. 🔹 NAS & Storage: TrueNAS, Synology, Unraid, ZFS, NFS, SMB. 🔹 Storage & Backups: TrueNAS, Synology, Unraid, Rsync, ZFS. 🔹 Web & Cloud Services: Nginx, Apache, AWS, Oracle Cloud.

🌟 𝗘𝘅𝗽𝗲𝗿𝘁 𝗗𝗲𝘃𝗢𝗽𝘀 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘄𝗶𝘁𝗵 𝗲𝘅𝘁𝗲𝗻𝘀𝗶𝘃𝗲 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻 𝗰𝗹𝗼𝘂𝗱 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗮𝗻𝗱 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 🌍 𝗦𝗲𝗻𝗶𝗼𝗿 𝗗𝗲𝘃𝗢𝗽𝘀 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 🎯 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗹𝗲 𝗱𝘂𝗿𝗶𝗻𝗴 𝗨𝗦, 𝗖𝗮𝗻𝗮𝗱𝗮, 𝗨𝗞, 𝗼𝗿 𝗽𝗿𝗲𝗳𝗲𝗿𝗿𝗲𝗱 𝘁𝗶𝗺𝗲 𝘇𝗼𝗻𝗲𝘀 💼 𝟳+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻 𝗔𝗪𝗦 & 𝗔𝘇𝘂𝗿𝗲 ✅ 𝗚𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲 𝗼𝗳 𝗛𝗶𝗴𝗵-𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝘆 🔴 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: 𝟰𝟬+ 𝗵𝗼𝘂𝗿𝘀 𝗽𝗲𝗿 𝘄𝗲𝗲𝗸 As a full-time freelance DevOps Engineer with 7+ years of experience, I bring a wealth of knowledge in crafting and managing robust cloud infrastructures. My skills span across AWS, Azure, GCP, as well as adaptable and cost-effective platforms like DigitalOcean, Linode, and Vultr. The following technologies I'm using: - DevOps Engineering - Cloud Computing - Software Configuration Management L - Linux Server Administration, - Cyber Security I am confident in my ability to bring exceptional value to your dynamic team. - Cloud Expertise: My cloud experience includes working extensively with - AWS services, such as EC2, VPC, S3, CloudWatch, - Terraform, IAM, SNS, ECS, - Managed database solutions like RDS. Additionally, - Server Less architecture, employing AWS Lambda, API Gateway, and DynamoDB to architect - Implementation of scalable cloud solutions with a strong focus on cybersecurity -Technical Proficiencies: My expertise spans a wide array of technologies, including Python, React, and Bash scripting, reflecting my commitment to delivering efficient and innovative solutions. I have a proven track record in web configuration, managing Domain Name Service (DNS), SSL Certification (HTTPS), and implementing both LAMP and MEAN web stacks, all while maintaining a keen focus on cybersecurity best practices. - Build Management: I have a wealth of experience in build management, utilizing tools such as Jenkins, Maven, and Nexus to streamline and automate the build process. This proficiency has contributed to the acceleration of release cycles and improved overall system reliability, with a dedicated emphasis on integrating robust cybersecurity measures into the development lifecycle. - DevOps and Configuration Management: In the realm of DevOps, I possess hands-on experience with Cisco Packet Tracer, Jenkins CI/CD pipelines, and Docker containerization management and policy. My expertise extends to Ansible, where I've demonstrated prowess in writing playbooks and creating roles, emphasizing scalability, reusability, and the integration of cybersecurity measures throughout the entire infrastructure. - Kubernetes and Containerization: I've actively contributed to developing APIs using Kubernetes, managing and specifying container copies to run on actual servers in the cloud environment. This involved scheduling, deploying, and managing containers, showcasing my proficiency in orchestrating containerized applications securely, with a keen awareness of cybersecurity considerations. Let's Connect: If you're seeking a seasoned DevOps professional to optimize your infrastructure, streamline deployment processes, and ensure scalability and security across your projects, I would love to discuss how I can contribute to your organization's success. #devops #infrastructureengineer #cloudarchitect #awsspecialist #cicd #cloud