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).

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

💼 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.

𝐈 𝐫𝐞𝐝𝐮𝐜𝐞 𝐀𝐖𝐒 𝐛𝐢𝐥𝐥𝐬 𝐛𝐲 𝟑𝟓–𝟒𝟓% 𝐚𝐧𝐝 𝐜𝐮𝐭 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 𝐭𝐢𝐦𝐞𝐬 𝐛𝐲 𝟔𝟎% — without touching your existing architecture. 🏆 Top Rated Plus · 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 · $𝟕𝟎𝐊+ 𝐄𝐚𝐫𝐧𝐞𝐝 · 𝟖𝟎+ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 ━━━ What this means for your business ━━━ A SaaS startup I worked with 𝐰𝐚𝐬 𝐬𝐩𝐞𝐧𝐝𝐢𝐧𝐠 $𝟖𝐊/𝐦𝐨𝐧𝐭𝐡 𝐨𝐧 𝐀𝐖𝐒 𝐰𝐢𝐭𝐡 𝟒𝟎-𝐦𝐢𝐧𝐮𝐭𝐞 𝐝𝐞𝐩𝐥𝐨𝐲𝐬. Three weeks later — $𝟓𝐊/𝐦𝐨𝐧𝐭𝐡, 𝟏𝟓-𝐦𝐢𝐧𝐮𝐭𝐞 𝐝𝐞𝐩𝐥𝐨𝐲𝐬, 𝐳𝐞𝐫𝐨 𝐝𝐨𝐰𝐧𝐭𝐢𝐦𝐞 — no infrastructure rewrite. If your AWS bill keeps climbing, deploys feel slow, or your team is scared to touch the infrastructure — 𝐭𝐡𝐚𝐭'𝐬 𝐞𝐱𝐚𝐜𝐭𝐥𝐲 𝐰𝐡𝐚𝐭 𝐈 𝐟𝐢𝐱. ✅ 𝐌𝐨𝐬𝐭 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐬𝐞𝐞 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 𝐰𝐢𝐭𝐡𝐢𝐧 𝐭𝐡𝐞 𝐟𝐢𝐫𝐬𝐭 𝐰𝐞𝐞𝐤. ━━━━━━━━━━━━━━━━━━━ 💡 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡: ━━━━━━━━━━━━━━━━━━━ → Reduce AWS costs (EC2, EKS, S3 optimization, right-sizing, autoscaling) → Fix slow or failing CI/CD pipelines → Build clean, scalable infrastructure using Terraform → Improve performance and reliability of EKS/Kubernetes workloads → Migrate infrastructure to AWS or optimize existing environments ━━━━━━━━━━━━━━━━━━━ 📈 𝐑𝐞𝐚𝐥 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝: ━━━━━━━━━━━━━━━━━━━ → Reduced AWS bills by 𝟑𝟓–𝟒𝟓% for multiple startups → Cut deployment times by 𝟒𝟎–𝟔𝟎% with CI/CD improvements → Reduced manual infrastructure effort by 𝟕𝟎% using Terraform → Stabilized EKS workloads under high-traffic production load ━━━━━━━━━━━━━━━━━━━ 🛠️ 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲: ━━━━━━━━━━━━━━━━━━━ Cloud: AWS (EC2, ECS, EKS, S3, CloudFormation) CI/CD: Jenkins, CodePipeline, GitHub Actions, Bash IaC: Terraform (Modular) Containers: Docker, Kubernetes (EKS) Systems: Git, GitHub, Linux (Ubuntu) Security & Admin: Cloud Security, Cost Optimization, Autoscaling, Linux Admin ━━━━━━━━━━━━━━━━━━━ 🌟 𝐖𝐡𝐚𝐭 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐬𝐚𝐲: ━━━━━━━━━━━━━━━━━━━ ❝ Knowledgeable, dedicated, and always willing to go the extra mile ❞ ❝ Quickly executed the work and it was flawless. I hope to work with him again ❞ ❝ Hard-worker, on-time, proactive — he knows what he is doing ❞ ━━━━━━━━━━━━━━━━━━━ ⚙️ 𝐌𝐲 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡: ━━━━━━━━━━━━━━━━━━━ Simple, practical solutions with immediate impact — not over-engineered setups that create more problems. You'll get: → Clear communication at every stage → Fast turnaround without cutting corners → Long-term, scalable architecture you can build on ━━━━━━━━━━━━━━━━━━━ ➤ 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐰𝐨𝐫𝐤 𝐭𝐨𝐠𝐞𝐭𝐡𝐞𝐫? ━━━━━━━━━━━━━━━━━━━ Message me with your AWS bill, your deploy pain, or your architecture challenge. I'll respond within a few hours with a clear, practical next step — no fluff, no upsell. Urgent issue? I can jump in quickly AWS DevOps Engineer, DevOps Engineer, Terraform Infrastructure as Code, CI/CD Pipeline Automation, Amazon EKS Kubernetes, Amazon EC2, Amazon ECS, S3 Bucket, AWS Cost Optimization, Docker Containerization, Jenkins CI/CD, AWS CodePipeline, Cloud Security Engineer, Continuous Deployment, System Administrator, Linux, Ubuntu, Github, AWS Certified Solutions Architect, DevOps, Autoscaling, AWS RDS,

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