Mid-Senior DevOps | AI Engineer I design and operate production infrastructure while building AI-powered systems that integrate directly into real business workflows. My work spans cloud architecture, Linux systems, CI/CD, Kubernetes, Supabase, Cloudflare, and scalable backend infrastructure ,alongside AI integrations using Claude, ChatGPT, MCP servers, and custom automation pipelines. Core Expertise DevOps & Cloud Infrastructure (AWS, GCP, Azure, Hetzner) Kubernetes, Docker, CI/CD pipelines Linux server administration & automation Cloudflare, reverse proxies, DNS, SSL, networking Supabase & PostgreSQL platforms AI integrations with Claude & ChatGPT MCP server development & tool-calling systems API integrations & workflow orchestration Infrastructure security, staging, backups, and production hardening Recent Projects Built a production MCP server connecting ServiceM8 with Claude AI using 14 operational tools Managed a multi-server WordPress infrastructure fleet with 21 production websites Architected a multi-tenant Supabase platform for UK property compliance workflows Deployed and secured cloud environments with automated backups, staging systems, and CI/CD pipelines Implemented AI-powered workflows integrating external APIs, databases, and operational systems I work comfortably across the full stack of modern infrastructure and AI systems — from provisioning servers and securing production environments to building intelligent integrations that automate business operations. If you need someone who can both architect reliable infrastructure and build production-ready AI systems on top of it, let’s discuss your project.

I am a highly skilled Linux and Windows administrator with extensive experience in managing and maintaining complex IT infrastructures. With my expertise in Bash scripting, I can automate processes, streamline workflows, and optimize system performance. I have a strong track record of delivering reliable, scalable, and secure solutions to a diverse range of clients. Skills: Linux administration (RedHat, CentOS, Ubuntu, Debian) Windows administration (Server 2008/2012/2016/2019) Virtualization (VMware, Hyper-V) Bash scripting Automation (Ansible) Networking (TCP/IP, DNS, DHCP, VPN) Security (Firewalls, IDS/IPS, Antivirus) Experience: Managed Linux and Windows servers for multiple clients across various industries Developed and maintained Bash scripts to automate routine tasks, such as backups, updates, and monitoring Configured and optimized virtualized environments using VMware and Hyper-V Deployed and managed automation tools, such as Ansible Troubleshot and resolved complex networking and security issues Education: Bachelor's degree in Computer Science Certifications: MCSE, CCNA With my combination of technical skills, hands-on experience, and passion for innovation, I am confident that I can provide high-quality Linux and Windows administration and Bash scripting services to your organization. Contact me today to discuss your project requirements.

I am a dedicated Security Researcher and DevSecOps Engineer with a profound passion for cybersecurity and system integrity. My career revolves around ensuring the safety, resilience, and efficiency of digital systems by combining advanced technical expertise with a proactive approach to identifying and mitigating risks. As a Cybersecurity Engineer and Analyst, I specialize in securing infrastructure, analyzing vulnerabilities, and implementing robust security measures across diverse environments. With a strong background in Linux system administration, CI/CD pipelines, and containerization, I bring a holistic approach to integrating security into every stage of the software development lifecycle. My expertise extends to penetration testing, OSINT, automation, and creating tailored CLI utilities for enhanced productivity and security. I am adept at identifying and resolving system vulnerabilities, ensuring compliance with industry standards, and optimizing operational workflows. Whether it’s safeguarding digital assets, implementing DevSecOps practices, or performing in-depth security analyses, I am committed to delivering solutions that protect and enhance your organization's technological infrastructure. Let's collaborate to build secure, efficient, and future-ready systems.

Want Fast Turnaround for DevOps, Cloud & Infrastructure Projects? 🚀24-Hour Turnaround • Quick Response • Fast Delivery • Reliable Solutions Hi, I'm a DevOps Engineer helping businesses build, automate, secure, and scale cloud infrastructure. I work directly with clients to resolve deployment issues, cloud challenges, infrastructure bottlenecks, and production incidents with a practical, results-driven approach. What I Can Help You With ✔ AWS Infrastructure (EC2, S3, CloudFront, Route53, RDS, IAM) ✔ Azure & GCP Cloud Deployments ✔ Docker & Kubernetes Deployments ✔ Terraform & Infrastructure as Code (IaC) ✔ CI/CD Pipelines (GitHub Actions, GitLab CI/CD, Jenkins, Azure DevOps) ✔ Linux Server Administration (Ubuntu, Linux) ✔ Nginx Configuration & Reverse Proxy Setup ✔ SSL Certificates, DNS & Domain Management ✔ Application Deployments (.NET, Node.js, Python, WordPress and many more) ✔ PostgreSQL & MySQL Administration ✔ Monitoring, Logging & Troubleshooting ✔ Cloud & Server Migrations Common Problems I Solve • Application deployment failures • Docker and Kubernetes issues • CI/CD pipeline configuration and troubleshooting • AWS infrastructure setup and optimization • SSL, DNS, and Nginx configuration issues • Website and server migrations • Production outages and performance bottlenecks • Infrastructure automation using Terraform Technologies AWS • Azure • GCP • Docker • Kubernetes • Terraform • Linux • Ubuntu • Nginx • GitHub Actions • GitLab CI/CD • Azure DevOps • Jenkins • CloudFront • Route53 • EC2 • S3 • PostgreSQL • MySQL • Python • Bash • Git • DevOps • CI/CD • Infrastructure Automation • Cloud Architecture What You Can Expect? ✅ Clear Communication ✅ Reliable Infrastructure ✅ Secure Configuration ✅ Automated Deployments ✅ Fast Problem Resolution ✅ Well-Documented Solutions My approach is simple: build infrastructure that is stable, secure, scalable, and easy to maintain. If you're looking for a DevOps Engineer who can take ownership of deployments, cloud infrastructure, automation, and production support, feel free to send me an invitation. Let's discuss your project.

Cybersecurity & Linux Engineer | AWS | WordPress | DLP | SIEM I help businesses quickly identify, fix, and prevent server issues across Linux and Windows environments. I specialize in troubleshooting, log analysis, and incident response for real-world problems like outages, security risks, and misconfigurations. I have 10+ years of hands-on experience supporting production systems, including incident response, log analysis, and infrastructure hardening. I recently completed a forensic log analysis project with a 5-star client rating, delivering a structured, evidence-based report identifying login activity and connection behavior. Recent work includes: - Digital forensic log analysis (application, service, login, and connection logs) - Discourse deployment using Docker with full SMTP, DNS, and HTTPS validation - Server recovery, malware cleanup, and security hardening What I can help you with: - Log analysis and incident investigation - Linux server troubleshooting and performance issues - Server recovery and security hardening - Docker deployment and fixes - SMTP / email delivery issues (SPF, DKIM, DMARC) - WordPress security and recovery - Firewall, SSH, and system hardening I focus on root cause, not temporary fixes. I document clearly and leave systems stable, secure, and production-ready.

Hi, I am Sazedur Rahman, working as a System Engineer for Linux/Unix-like OS Based Systems in a Reputed Financial Organization. I am new to Upwork but have more than five years of profound Experience in Linux/Unix System Administration, Configuration, Server Security and Automation. Completed various Live projects such as Authoritative DNS, DNSsec, Caching DNS, Zimbra Multi-Server Mail Solution, Multiple Web Server using Apache and NGINX, Local Repository for Linux Distributions Like- CentOS/Ubuntu & EPEL/Zimbra/RemiPHP, File Server Integrated with Windows AD for more than 8K Users, IPA Server, NTP Server, Cockpit Server, Secure File Sharing with Next Cloud. Expertise in - Linux Server Configuration- Web, Mail, DNS, Virtual Hosting, Samba, NFS, FTP, HA Cluster, Apache/NGINX with SSL/TLS, Gluster Storage (GFS2), Zimbra Mail Server, Red Hat Satellite, Spacewalk (open-source systems management), Linux System Security - Firewalld, iptables, fail2ban System Automation using- Shell Scripting, Ansible, Python Linux System Penetration Testing using OpenSCAP. Virtualization- vmware, rhev, kvm Kubernetes, Docker, Container Also certified as CCNA, RHCE, RHCVA & RHCA (Red Hat Cert ID: 160-039-582).

💼 Azure Solutions Architect Expert & DevOps Engineer I’m a certified Azure Solutions Architect and DevOps Engineer with over 10 years of experience in designing, deploying, and automating cloud-native and hybrid IT infrastructures. My focus is on delivering secure, scalable, and high-performance solutions across multiple platforms. 🧾 Certifications: ✅ AZ-400: Designing and Implementing Microsoft DevOps Solutions ✅ AZ-305: Azure Solutions Architect Expert ✅ AZ-104: Azure Administrator Associate ✅ Azure DevOps Assessment (18473) ☁️ Cloud Expertise: 🔷 Microsoft Azure: Networking & Security: Azure Front Door, Application Gateway, Load Balancer, VNet, NSG, VPN Gateway, Private Endpoints, DNS management Compute & Containers: Azure Virtual Machines, Azure Kubernetes Service (AKS), Azure Container Instances (ACI), Azure Functions App Services & Integration: Azure Web Apps, Logic Apps, Azure API Management, Azure DevOps (CI/CD pipelines) Data & AI: Azure SQL Database, Azure Blob Storage, Azure AI Services, Azure Batch Identity & Access: Azure Entra ID (Azure AD), B2B/B2C Identity Management, Hybrid AD Join, Role-Based Access Control Governance & Monitoring: Azure Policies, Resource Graph, Cost Management, Azure Monitor, Log Analytics 🟧 AWS Cloud: EC2, RDS, EKS, IAM Policies, Lambda (serverless), S3, SES, ECR, VPC, CloudWatch AWS Load Balancing, Lightsail, Route 53, CloudFront Backup, Monitoring, and Serverless Architectures 🌐 Other Cloud Platforms: Google Cloud Platform (GCP): Basic infrastructure & VM setups DigitalOcean, Vultr, OVH, Hetzner: Resource provisioning, DNS, networking, LAMP/LEMP stacks, and firewalls 🔧 DevOps, IaC & Automation: Infrastructure as Code: Terraform, ARM Templates, Ansible, Puppet, Chef Automation: PowerShell, Bash, Python, Chocolatey, GitHub Actions, Azure Automation Containerization & Orchestration: Docker, Kubernetes, LXC CI/CD: Azure DevOps Pipelines, GitHub Actions, YAML & classic pipelines System Hardening & Patch Management (RHEL, Ubuntu, Windows) 🧩 Open-Source Deployments & App Hosting: Matrix Synapse homeserver deployment and management Keycloak identity provider setup and integration with apps (including Jitsi, Nextcloud) Web hosting: Apache, Nginx, Plesk, Webmin, cPanel Applications: Odoo, Nextcloud, Plainpad, FrePPLe, and more Secure email hosting (Postfix/Dovecot), Mail Servers, DNS (BIND, Cloudflare, Namecheap APIs) If you're looking for a dependable engineer who can handle complex infrastructure, optimize performance, and automate workflows across Azure, AWS, and open-source platforms—I'm ready to help. ✅ Let’s connect if you want to get your systems secure, scalable, and future-ready.

Freelancer, having 10+ years of experience as a Linux/Windows System Administrator, Devops and Cloud Engineer. I am well experienced in System Administration, so including but not limited to: Artificial Intelligence(AI): Installation of python, pip, tensorflow and pytorch Building with CUDA(NIVIDIA GPU)/ROCM (AMD GPU) support. MongoDB Replicaset on multi-node docker container. PostgreSQL High Availability with multi-node Docker and Keepalived Postgresql cluster, high availability, Load balancing. Master-master Replication. GlusterFS Replication and Geo-replication. Mail Server: Zimbra, postfix, sendmail, PowerMTA Web Server: Apache, Tomcat, Nginx Scripting: shell scripting Control Panel: Plesk, WHM, Cpanel, Webmin, Virtualmin Virtualization: KVM, VMware, Citrix Xen Server, VMware Esxi, Proxmox, Advanced KVM command-line Security Compliance: PCI-DSS, DISA STIGs. Devops Tools: Docker, Docker-compose, Jenkins, GitHub,Vagrant, Vagrant with Docker as provider , Ansible, Foreman, Docker Swarm Network: Router configuration of cisco router, modem. IP subnetting. Database: Mysql, Postgresql, Oracle, MS-SQL Accounting: Tally 6.3, Tally ERP 9 on Linux Operating System: Debian-{8,9,10}, Centos-{3,4,5,6,7}, Ubuntu-{12,14,16,18,20.04,22.04}, Windows server -{2003, 2008, 2012, 2016, 2019,2022} Private cloud: Eucalyptus (Ubuntu Enterprise cloud), OpenNebula Cloud: AWS, Gcloud, Azure create VPC, public-private subnet, route table, Internet gateway, network acl, amazon ec2 instance Migration, updation. ERP: ERPnext Multitenant, ERPnext in Google Cloud K8s cluster with CEPH storage Log Server: Solarwind Kiwi syslog Domain Server: Windows AD, Samba4 Server provisioning and PXE installation for Linux and Windows. Source code Compilation and Cross compilation for various architecture. Server Administration, Webhosting, Web migration, Web and DB performance tuning, SSL Certificate Installation, Shell scripting, Deployment of various software and server, Mail server etc. Linux Distros: Kiosk live image. FFMPEG, v4l2loopback, Proxy: Haproxy

I am a Embedded linux developer, Linux/ARM BSP/firmware engineer (5+ years). Experience and skills: ● 5 years of experience in Embedded systems and Home automation. ● Employed Full-time as Embedded linux Engineer ●Having experience with programming in C/C++, Java, and basic in Python, as well as many other languages. ● SVN, GIT, GIT Shell, Tortoise SVN, Tortoise GIT, Source Tree, Gerrit Code Revie, Jenkins... ● Working with various SoC's and microcontrollers : (TI: cc2530, cc2531, cc2538; Atmel: AtMega328p, AtMega8, ATtiny85; Arduino: Mini, Nano, Uno...; ESP8266, ESP32; Raspberry pi 2/3/4), Beaglebone, i.MX6 Sabre, Quectel AG35 EVB, NanoPi Air, OrangePi Win, STM32, Microchip SAM9X60-EK. ◉ Have solid knowledge of the standard interface such as I2C, SPI, UART, CAN, OCPP1.6 ,OCPP2.0,RS232, USB Host/Device, Ethernet, SDCard ◉ IoT devices with wireless connectivity such as LTE, BLE, WIFI, GPS. ◉ Solid experience with U-boot porting, BSP, Linux kernel, Device drivers development/optimization for the small Linux SoC boards. ◉ Yocto, OpenWRT, Buildroot ◉ OTA: swupdate, mender, rauc ◉ Chipset: Allwinner A64, Allwinner H3, NXP i.MX6, Quectel AG35, Qualcomm MDM9x07

I help businesses automate infrastructure, operations, and workflows using DevOps, Linux, cloud, APIs, and AI-powered automation. My background is in production infrastructure, but I also build practical AI workflows using n8n, OpenAI API, webhooks, Python, and automation tools. I’m a DevOps and Infrastructure Engineer with extensive experience across Linux system administration, cloud automation, network architecture, and production infrastructure. I design, deploy, and maintain resilient server environments that meet enterprise-level standards for security, performance, scalability, and reliability. I also help businesses automate repetitive technical and operational tasks using AI workflows, n8n, APIs, webhooks, Python, and DevOps automation tools. My focus is on practical automation — connecting systems, reducing manual work, improving alerts, generating reports, and building reliable workflows that support real business operations. ✅ Core Expertise Linux System Administration: RHEL, Rocky, Alma, Ubuntu, Debian – installation, patching, optimization, troubleshooting. DevOps & Automation: Ansible, Terraform, CI/CD pipelines, GitLab, Jenkins, Docker, Kubernetes, Python & Bash scripting. AI Workflow Automation: n8n, AI agents, OpenAI API, webhooks, API integrations, workflow automation, alert automation, reporting automation, and internal process automation. Cloud Infrastructure: AWS, Azure, Proxmox VE, VMware, KVM – provisioning, monitoring, scaling, backup & recovery. Network Engineering: BGP, OSPF, VLANs, LACP, VPNs, FortiGate, MikroTik, OPNsense, pfSense. Monitoring & Observability: Zabbix, Prometheus, Grafana, Observium, ELK, EM7 – proactive alerting and performance analytics. Security & Compliance: Server hardening, firewall architecture, DDoS mitigation, IAM, zero-trust networks, PCI-DSS/ISO 27001 readiness. Backup & Disaster Recovery: rsync, Bacula, Ceph, Proxmox Backup Server – reliable, automated backup pipelines. 🧩 Services I Provide 🔹 Infrastructure & Server Administration Deploy and manage Linux servers, optimize system resources, secure configurations, and automate recurring maintenance tasks. 🔹 DevOps & Infrastructure Automation Implement Infrastructure as Code with Ansible and Terraform, design CI/CD pipelines, containerize applications, and streamline cloud provisioning. 🔹 AI Workflows & n8n Automation Build practical AI-powered workflows using n8n, APIs, webhooks, and automation tools. This can include alert enrichment, report generation, ticket creation, data syncs, chatbot-style workflows, and internal process automation. 🔹 Cloud & Virtualization Solutions Build, migrate, and optimize cloud and virtualization environments including AWS, Azure, Proxmox, VMware, and KVM. 🔹 Network Architecture & Security Plan and implement secure, high-performance networks including routing, VPNs, VLAN segmentation, firewall policies, and load balancing. 🔹 Monitoring & Performance Optimization Set up observability stacks using Zabbix, Prometheus, Grafana, ELK, and related tools. Enable alerting, dashboards, trending, and capacity planning. 🏆 Why Work With Me ⭐ 10+ years in Linux, DevOps, infrastructure, and network engineering. ⭐ Practical automation mindset with hands-on scripting, APIs, and workflow integration experience. ⭐ Ability to combine infrastructure, monitoring, and AI automation into reliable business workflows. ⭐ Strong documentation and post-deployment support. ⭐ Hands-on experience in enterprise and data-center environments. ⭐ Focused on uptime, security, automation, and long-term reliability. ⭐ Top-rated delivery with transparent communication and proven reliability.