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I’m an experienced Email and Identity Management with 15+ years of hands-on experience helping businesses keep their systems secure, reliable, and running smoothly. I work across Microsoft 365, Azure, identity management, Windows Server, virtualization, and security, always with a practical focus on solving problems efficiently and minimizing disruption. ☁️🔐 Over the years, I’ve supported enterprise environments globally, led migrations, improved system security, and helped teams move to more modern and scalable IT setups. My goal is simple: make technology work better for your business, your users, and your long-term growth. 🚀 My approach is simple: 👉 Keep your systems available 👉 Improve security and control 👉 Reduce downtime and technical issues 👉 Provide dependable, proactive support What I Can Help With -------------- Cloud & Microsoft 365 -------------- Microsoft 365 / Office 365 administration Exchange Online setup and migration Azure cloud services and hybrid environments Identity and access management with Azure AD / Entra ID MFA, SSO, Conditional Access, and secure user access (Zero-Trust) Email security including SPF, DKIM, DMARC, and BIMI -------------- Infrastructure & Systems -------------- Windows Server administration and optimization Active Directory, DNS, DHCP, and Group Policy Remote Desktop Services and end-user environment support Backup and disaster recovery planning -------------- Security & Operations -------------- Server and identity hardening Threat monitoring and access control Data classification and Data protection security best practices (GDPR, Privacy, etc.) Long-term fixes that reduce recurring issues Reliable system maintenance and performance improvements -------------- Why Clients Work With Me -------------- 15+ years of enterprise IT expertise Strong experience with Microsoft 365, Azure, and infrastructure support Proven success with migrations, upgrades, and secure environments Clear communication and professional documentation Focused on practical solutions that save time and reduce stress Whether you need help with Microsoft 365 administration, Exchange Email migration, IAM (Identity Access Management), Windows Server support, or ongoing IT infrastructure management, I can help you build a stable and efficient environment. 🌍

As a seasoned Cloud Administrator, I bring over 10+ years of hands-on experience in complex enterprise contexts, with a focus on Azure, Azure DevOps, Terraform, Github, Windows Server, (Active Directory, DNS, GPO, SCCM and all..), M365, Exchange and other administrative tools. Adept at planning, managing and troubleshooting Cloud Infrastructure and systems, providing services to more than 100,000 users. I have a proven track record of automating complex business processes, optimizing Microsoft licensing cost, stable change management and ensuring robust system security. An avid learner, I thrive on staying current with emerging technologies, especially in the realm of AI and DevOps. I am actively seeking a dynamic role that can leverage my strong skill set and experience. Previously, I served as a Windows 365 Subject Matter Expert at Microsoft, where I have had the opportunity to enhance my skills in Azure Virtual Machines, Microsoft Entra ID, Intune and Azure Virtual Networks. In addition to my technical responsibilities, I actively contribute to the creation of insights and feedback for the product. I do love my job and I will always find time to listen, give advice, and help you with your problems. I've worked biggest projects of my country, such as initial installation and monitoring of nationwide ip tv & VOD platform's datacenter's (Tivibu). Also had a chance to work in Airport De Paris and implemented many IT solutions both in Airport's datacenter worldwide and on Azure Cloud. Currently, working as a DevOps engineer in a Canadian company, provisioning Azure solutions with Terraform and Azure DevOps (CI/CD). Most of my experience is on Microsoft products, at the same time, I also follow Linux and the open source world, and I can produce pinpoint solutions.

🔧 Linux Systems Engineer | Certified Red Hat Architect | Suse & Oracle Expert I am a seasoned Linux Systems Engineer with extensive experience in enterprise-grade Linux distributions and virtualization technologies. I have a proven track record of designing, implementing, and automating robust server infrastructures. ✅ Certifications: Red Hat Certified Architect in Infrastructure Level II (ID: 190-311-605 rhce , rhca ) Red Hat Certified Specialist in High Availability Clustering Red Hat Certified Specialist in Managing Automation with Ansible Automation Platform Red Hat Certified Specialist in Linux Performance Tuning Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting Red Hat Certified Specialist in Services Management and Automation Red Hat Certified Specialist in Deployment and Systems Management (Red Hat Satellite ) SUSE Certified Engineer (SCE) – including SUSE Linux Enterprise for SAP Oracle Certified Professional (OCP) – Linux & Solaris System Administration 🖥️ Linux Distributions: Red Hat Enterprise Linux (RHEL) , Rocky linux, Alma linux, Oracle linux Debian ( + Ubuntu ) SUSE Linux Enterprise Oracle Enterprise Linux (OEL) CentOS Proxmox VE oVirt, Oracle Linux Virtual manager ⚙️ Virtualization & Containers: Linux KVM / QEMU-KVM LXC / LXD Xen oVirt Proxmox VE 📦 Applications & Cluster Technologies: Ansible (Automation & Configuration Management) HAProxy (Load Balancing) MaxScale (MariaDB Proxy) Percona XtraDB Cluster (High Availability MySQL) Redis/Valkey cluster 🛠️ Storage & Other Systems: Oracle Solaris 10/11 (Certified Administrator) Oracle/SUN ZFS Storage Appliances OpenZFS Linux Raid Linux data recover FreeNAS / TrueNAS 💬 I can help you with: Designing and deploying highly available Linux clusters ( Pacemaker / Corosync ) Automating server provisioning and configuration with Ansible Installation service operations are done with ansible. Server Boot Issue Troubleshooting Data server recovery (Only linux systems) Migrating legacy systems to modern, scalable platforms Securing and hardening enterprise Linux systems Virtualization and private cloud infrastructure setup Linux networking (bonding, swicth, bridge, load balance, lacp, nginx lb) Let's work together to bring stability, performance, and automation to your infrastructure.

I'm system support specialist at private company. My experinces are linux and windows system installation, management of Fortigate, Kerio Control and PFSense firewalls, solving user issues, bulk email marketing, administration of office 365 accounts.

Hello! I am expert Backend Developer with almost 20 years of experience in backend, Android mobile, desktop apps, apps for embedded devices, ERP apps and web development. Proficient in developing applications in wide range of areas, including business applications and database management. Have high attitude expertise in Linux OS management, including building automated servers with set of services/tools for different purposes, virtualization tehcnologies like KVM/libvirt, containerization technologies like LXC, Docker, Kubernetes. What I can do: - Planning and implementing the app’s architecture and features. - Writing apps from the very scratch and further support. - Code Review, Fixing and supporting the apps written by others. - Working with a team of developers or solo. Technical Skills: * Languages and Frameworks: Java (Spring, Quarkus, Dropwizard....), Kotlin, C, C++, Qt, Rust, Go, Python (Django), JavaScript, PHP * Platforms: Backend, Android, Linux (Fedora, RedHat, CentOS, Ubuntu) * Technologies: Docker, Kubernetes, CI/CD, Mobile Development, Docker, KVM, libvirt, IT infrastructure monitoring tools, AWS services, GCP * Database Management: PostgreSQL, SQLite, MySQL.... - I'm open to working with big and small companies and individual clients. - I'm comfortable signing an NDA. - Prefer long-term collaboration. - Ready to work 30-60 hours per week I'm open to various projects and would love to show you my creative side too. My commitment to continuous learning keeps me updated with the latest trends and technologies, allowing me to bring cutting-edge solutions to your projects and better expreince. I am giving high attention to details, ready to resolve complicated and complex challenges, always tend to offer most efficient solution. Thanks for your time Regards Rafael S.

DevOps engineer with 4 years of experience skilled in IaC, CI/CD pipelines, virtualization, databases, and automation Proficient in designing and deploying cloud-based architectures on Kubernetes Focused on building stable, scalable, and properly monitored infrastructure.