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I build infrastructure that handles real production pressure — not just demos. With 3+ years of hands-on work across AWS, Azure, Huawei Cloud Stack, and OpenStack, I’ve delivered end-to-end cloud solutions for clients ranging from enterprise private cloud environments to SMB server hardening and performance optimization. My work goes beyond setup. I troubleshoot live production issues, write full documentation, and make sure everything is maintainable long after I close the contract. ☁️ Cloud Platforms AWS (EC2, EKS, ECR, ECS, VPC, IAM, Load Balancers) • Microsoft Azure • Huawei Cloud Stack (HCS/CCE) • OpenStack • GCP 🐳 Containers & Orchestration Docker • Kubernetes (EKS, CCE, Minikube) • Helm • Air-gapped offline deployments 🚀 CI/CD & Automation Jenkins • GitHub Actions • GitLab CI/CD • ArgoCD • Ansible 🏗️ Infrastructure as Code Terraform • Automated provisioning • Configuration management 📊 Monitoring & Observability Prometheus • Grafana • ELK Stack • Alerting & Performance Analysis 🔐 Security & Reliability Linux Administration • SSH Hardening • UFW & Firewall • IAM & Access Control • DKIM/SPF/DMARC • Fail2Ban • Lynis 📧 Mail Infrastructure Postfix • Dovecot • Roundcube • MailCow • Email Deliverability & Authentication ✅ What I Can Do For You • Design and deploy production-grade AWS, Azure, HCS, and GCP infrastructure • Set up and manage Kubernetes clusters end-to-end • Build automated CI/CD pipelines from scratch • Automate infrastructure with Terraform and Ansible • Implement monitoring, alerting, and observability solutions • Harden and secure Linux servers and cloud environments • Deploy and manage mail servers with full authentication stack • Troubleshoot and optimize live production environments • Lead cloud migration and modernization projects 💡 Why Clients Work With Me Again • I communicate clearly and keep you updated at every step — no surprises • I focus on root causes, not quick patches — your system stays fixed • I document everything I deliver, so your team can maintain it • I treat your infrastructure as if it were my own • I work in real production environments, not just labs “Infrastructure that scales, pipelines that flow, systems that don’t break at 3AM.”

I help teams run infrastructure they don't have to worry about. No surprise outages, no "hope this backup works" moments, no migration disasters. I've secured business-critical servers for financial institutions, built monitoring that surfaces issues early, and implemented backups with verified restores. My focus is long-term stability, not quick fixes, so problems stay solved instead of recurring. CLIENT TESTIMONIAL: "It has been nothing but a pleasure working with Temidara. We could not have been more happier than this..." - Keyway Solutions ⭐⭐⭐⭐⭐ PROBLEMS I SOLVE: - Server crashes at 2 AM with no monitoring in place - Backups that fail when you actually need them - Security vulnerabilities you don't know about - Infrastructure costs spiraling out of control - Cloud migrations that take down your business WHAT YOU GET: - Automated backup pipelines with scheduled restore verification (recovery proven, not assumed) - Monitoring that detects issues before customers notice - Reduced infrastructure costs by 40% through right-sizing and observability - Enterprise-grade security controls and identity management - Zero-downtime server migrations with continuous sync - Proactive incident response and security hardening CORE EXPERTISE: Security & Compliance - Microsoft SC-300 certified (Identity & Access Management) - Pentera Level 3 security validation - Zero Trust architecture implementation - Incident response and remediation - Enterprise security controls for financial services Infrastructure Automation - Docker, Ansible, Terraform, Bash/Python scripting - CI/CD pipelines - Infrastructure as Code (IaC) Cloud & Systems - AWS (EC2, S3, CloudFront, IAM) - GCP (Cloud Run, Compute Engine) - Linux (Ubuntu, RHEL, CentOS) - VPS management and optimization Monitoring & Observability - Prometheus, Grafana - Real-time alerting for CPU/memory/disk - Performance optimization and cost tracking Backup & Recovery - Automated backup pipelines - Scheduled restore testing - Disaster recovery planning MY APPROACH: Snapshot before changes → Test in staging → Automate recovery → Verify with monitoring. I document everything so future maintenance doesn't require my involvement. The goal is to leave systems documented, observable, and recoverable without ongoing dependence. WHY CLIENTS CHOOSE ME: - Microsoft Certified in Identity & Access Management (SC-300) - Pentera Level 3 Security Validation Engineer - Full-time Cyber Security Engineer at Systemtech Services - Financial services experience (compliance-ready) - I test my own backups - proven recovery, not assumptions - Documentation-first approach CURRENT ROLE: Cyber Security Engineer at Systemtech Services Limited, where I manage production infrastructure for financial services clients. I respond to live incidents, implement enterprise-grade security controls, and maintain 99.9% uptime for business-critical systems. This experience means I bring enterprise-level reliability and security practices to every freelance project, without the enterprise price tag. AVAILABILITY: Ready to start immediately. I start with a short technical assessment to reduce risk, confirm assumptions, and avoid rework before changes are made. Tags: DevSecOps engineer, Linux security hardening, server security audit, incident response, Fortinet firewall setup, FortiGate configuration, SC-300 certified, Pentera security validation, Prometheus monitoring, Grafana dashboards, backup automation, disaster recovery planning, financial services infrastructure, zero trust architecture, AWS security, IAM hardening, Terraform IaC, CI/CD pipelines, Ubuntu server admin, RHEL administration, VPS optimization, cloud migration, zero-downtime migration

23+ years in Linux/Windows administration, DevOps, and cloud infrastructure. I build, secure, and scale production systems 24/7 — for MSP clients and direct engagements across industries. If your server is down, your deployment is failing, or you need infrastructure built right the first time — I'm the engineer you call. ━━ SERVER & SYSTEMS ━━ Linux (CentOS, Debian, Ubuntu, Amazon Linux, Rocky Linux) and Windows Server (2012–2025). Active Directory, Group Policy, Intune, hybrid identity. Nginx, Apache, Sendmail, Qmail, Postfix, Exim — MTA setup, Dovecot, SpamAssassin, OpenDKIM, SPF/DKIM/DMARC. Veeam, Acronis, cloud-native DR. Hypervisors: KVM, VMware ESXi, Hyper-V, Proxmox VE — HA clusters, live migration, Ceph/ZFS, Proxmox Backup Server. Redis, Varnish. QNAP NAS — storage management, Plex Media Server deployment, VPN tunnel integration. WHM/cPanel, Plesk, Virtualmin, CloudPanel, CyberPanel. ━━ CLOUD INFRASTRUCTURE ━━ AWS: EC2, ECS, EKS, RDS, S3, Route 53, IAM, VPC, CloudWatch, Lambda, API Gateway, Elastic Disaster Recovery. GCP: Cloud Run, Cloud Build, Firestore, GKE, IAM, VPC, Pub/Sub, Cloud Storage, Secret Manager, Cloud Monitoring. Cloudflare (WAF, Workers, Zero Trust, CDN). DigitalOcean, Hetzner, Vultr. MinIO: S3-compatible object storage on bare metal, VMs, Kubernetes — distributed mode, SSE-S3/KMS, lifecycle policies, drop-in S3 for backups and MLOps. Railway: Full-stack PaaS — GitHub/Docker auto-build, managed DBs (PostgreSQL, MySQL, Redis), private networking, env variables, cron workers, auto-scaling. ━━ SECRETS MANAGEMENT ━━ HashiCorp Vault: Dynamic secrets for AWS IAM, databases, cloud providers — TTL-bound credentials, auto-revoke. PKI for internal CA and on-demand TLS. Vault Secrets Operator for Kubernetes (etcd-free pod injection). Raft HA, RBAC, audit logging, Shamir unseal. Transit engine for encryption-as-a-service. CI/CD integration to eliminate hardcoded credentials. ━━ DEVOPS & CI/CD ━━ Docker, Kubernetes (EKS + self-managed: kubeadm, k3s, RKE2), Helm, Kamal. GitHub Actions, GitLab CI, Bitbucket Pipelines. Terraform, Ansible. ArgoCD, Flux (GitOps). Prometheus, Grafana, Datadog. Traefik: Cloud-native ingress — auto TLS, Docker/K8s service discovery, ForwardAuth, rate limiting, canary routing. Caddy: Zero-config-TLS reverse proxy — automatic HTTPS, on-demand certs. Preferred for self-hosted stacks. ━━ NETWORKING & SECURITY ━━ WireGuard, OpenVPN (MFA/ZTNA), IPSec/Libreswan, Xray/REALITY. Tailscale/Headscale — self-hosted mesh VPN, VPS tunnel setup, ACL policies, subnet routing. MikroTik, Juniper, SonicWall, Fortinet (FortiGate, FortiManager, FortiAnalyzer). pfSense, OPNsense. BGP, OSPF. Auth0, OAuth2, OIDC, Duo Security. LDAP/RADIUS, 802.1x, NPS/AD CS/Intune. ━━ DEVELOPMENT & AUTOMATION ━━ Python: FastAPI, Flask, Django, RESTful APIs, OpenAI API, ETL pipelines (Airbyte), orchestration (Airflow, n8n), data processing (pandas), Retool internal tools. Clean, documented, production-ready code. ━━ CONTAINERIZATION & DEPLOYMENT ━━ Docker Compose, Kubernetes manifests, Helm. Portainer, Coolify, Elestio, Traefik, Caddy. MinIO (K8s Operator/Tenant). Nextcloud, n8n, self-hosted app deployment. Vercel, Railway, Netlify, Replit. ━━ MSP & VOIP ━━ Duo Security, SpamTitan, ScreenConnect, ESET, Acronis. M365 multi-tenant administration. Asterisk and Vicidial (AWS + on-prem) — SIP trunks, IVR, call center setup, NetSIP integration. ━━ LEGACY & EARLY CAREER ━━ Foundational background in Windows desktop application development (VB, C#, Access) and web development (Core PHP, Laravel). ━━ WHAT CLIENTS HIRE ME FOR ━━ ► Emergency triage: servers down, services failing, breaches in progress ► Greenfield AWS/cloud environments built to security and compliance best practices ► CI/CD pipelines rebuilt to work reliably — no more failed deployments at 2am ► Self-hosted stacks that cut cloud bills without cutting uptime ► Kubernetes from scratch: EKS, k3s, RKE2 — setup, Helm, GitOps, day-2 operations ► HashiCorp Vault rollouts — eliminate hardcoded credentials across all pipelines ► Proxmox VE clusters: HA, live migration, Ceph storage, Proxmox Backup Server ► Network redesigns: Zero Trust, WireGuard mesh, BGP multi-homed, FortiGate, pfSense ► Ongoing managed infrastructure support and 24/7 incident response ► GCP solution design & delivery — Cloud Run, microservices, IAM, developer onboarding/offboarding ► Infrastructure, Security & Application Audits — server, network, database, cloud, and web stack ━━ INDUSTRIES SERVED ━━ SaaS · Fintech · Healthcare · E-commerce · Legal · Real Estate · Media · Education · Government · Telecoms · Startups · Enterprise. Single-server MVPs to multi-region, multi-account production environments. ━━ COMMUNICATION & PROCESS ━━ I don't disappear after the kickoff call. Clear updates at every stage, thorough documentation, and a proper handover on every engagement. Timezone-flexible. Slack, Teams, WhatsApp, Zoom, or Webex. If the work matters, it gets done right.

🔐 Wazuh SIEM specialist and SOC engineer with hands-on experience deploying, configuring, and managing security monitoring infrastructure for enterprise environments. I help businesses detect threats, respond to incidents, and maintain secure, high-availability IT infrastructure across Linux and Windows systems. Whether you need a Wazuh SIEM deployed from scratch, SIEM alert tuning, endpoint security hardening, or full SOC operations support. I deliver production-ready solutions, not just configurations. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛡 SECURITY & SIEM ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ Wazuh SIEM – Full deployment, agent onboarding, custom rules & decoders ✔ Log Management & Analysis – Syslog, Windows Event Logs, CEF/JSON ingestion ✔ Threat Detection & Incident Response – Alert triage, IR documentation, root cause analysis ✔ Endpoint Security – Kaspersky EDR, ESET PROTECT, VirusTotal FIM integration ✔ Firewall & Network Security – pfSense, FortiGate, IPsec VPN, WAN hardening ✔ GeoIP Enrichment & Attack Dashboards – OpenSearch/Kibana visualizations ✔ Active Response Automation – Python scripting, email alerting, SMTP integrations ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🖥 SYSTEM ADMINISTRATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ Windows Server – Active Directory (AD DS), DNS, DHCP, Group Policy, AD CS ✔ Linux Server – Ubuntu, Debian, Red Hat / RHEL — setup, hardening, automation ✔ Virtualization – VMware ESXi, Proxmox VE, Hyper-V, XenServer ✔ Monitoring & NMS – Zabbix, PRTG, Nagios, Wazuh agent health monitoring ✔ Backup & Recovery – Veeam Backup, NFS, disaster recovery planning ✔ Email & Cloud – Zimbra Mail Server, Nextcloud, OwnCloud ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🌐 NETWORKING ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ Routing & Switching – VLANs, inter-VLAN routing, static & dynamic routing ✔ VPN – IPsec site-to-site, OpenVPN, WireGuard, Cloudflare Zero Trust ✔ Firewalls – pfSense HA/CARP cluster, FortiGate policy management ✔ Remote Access – RustDesk, MeshCentral, self-hosted RDP solutions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📜 CERTIFICATIONS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ CC – Certified in Cybersecurity (ISC²) ✔ CCNA – Cisco Certified Network Associate ✔ RHCSA – In Progress I bring real enterprise experience not just lab setups. My work spans SOC operations at a national-scale defense retail chain, infrastructure security across border terminals and logistics sites, and ongoing managed security services for international clients. 📩 Available for one-time projects, ongoing retainers, and urgent engagements. Let's secure your infrastructure message me to get started.

Since 2011, I’ve carved out a niche as a dedicated IT professional with a passion for both Linux and Windows systems. I specialize in creating resilient IT infrastructures and am committed to leveraging my dynamic expertise to solve complex technology problems. Key Strengths: Ubuntu, Debian, Centos, AlmaLinux. Redhat Nextcloud Email Server Zimbra Matrix Synapse Chat Server VPS Hosting Webhosting Apache, Nginx Gitlab Gerrit Rsyslog Server Collabora Nextcloud Office Signaling Server HPB Nextcloud Jitsi Meet Wordpress & Laravel Deployment Phpmyadmin SMTP Server Postfix OpenVPN Community Edition SSO OpenLDAP Taiga Project Management Tool Deployment Cronjobs Guacamole RustDesk Nagios Core PHP multiversion NGINX and Apache Reverse Proxy Rocketchat Tomcat Digital Ocean Linode VPS Hosting Linux Complex Troubleshootings Webmin Virtualmin DNS SPF, DMARC, DKIM, MX Records Google Workspace And Goddy Domains Integration WHM Cpanel Plesk Wordpress Deployment / Migration Email Deliverability

"Your Infrastructure is the backbone of your business. Don't leave it to chance—build it for scale, security, and performance." As a Senior Solutions Architect & Full-Stack Developer with over 12 years of battle-tested experience, I specialize in building, securing, and automating high-performance digital ecosystems. I bridge the gap between Software Engineering and Cloud Infrastructure, ensuring that your applications don't just run—they thrive. Whether you are migrating to the cloud, automating a DevOps pipeline, or requiring custom software integrated with enterprise systems like ERPNext, I provide the strategic oversight and technical execution needed to deliver ROI. 🚀 Core Expertise & How I Add Value: Cloud & Infrastructure Architecture: Designing resilient, auto-scaling environments on AWS, Azure, and Hybrid Cloud. Expert in high-availability clusters using VMware (vSphere/ESXi) and Proxmox VE. Full-Stack Development: Custom software and web development using modern frameworks. I specialize in building secure, scalable applications that are optimized for the underlying server environment. DevOps & Automation: Implementing CI/CD pipelines, Infrastructure as Code (IaC), and automated monitoring to reduce human error and operational costs. Cybersecurity & Hardening: Enterprise-grade security including WAF (Cloudflare) optimization, malware eradication, and advanced DNS security (Infoblox). I build "Zero Trust" environments. Enterprise Solutions (ERPNext / Frappe): Expert-level deployment, custom Python/JS scripting, and seamless integration with eCommerce and third-party APIs. High-Volume Email Infrastructure: Specialized in self-hosted email delivery solutions (MTA) designed for high deliverability and security. 🛠 Technical Arsenal: Virtualization: VMware vSphere, Proxmox, KVM. Development: Python, PHP, JavaScript, SQL, Custom Scripting. Web & CMS: WordPress & WooCommerce (Expert Tuning), ERPNext/Frappe. Cloud & Networking: AWS, Azure, DigitalOcean, Cisco, Aruba, Cloudflare (WAF/Workers). Security: Malware Cleanup, Server Hardening, VPNs, SSL/TLS, Disaster Recovery. Monitoring: Zabbix, Grafana, Prometheus. 💎 Why Clients Choose Me: The 360° Perspective: I understand the code and the container. This hybrid expertise allows me to troubleshoot issues that others miss. Enterprise Experience: 12+ years managing complex environments for hosting providers and large-scale businesses. Security-First Mindset: I don't just build for functionality; I build for defense. Business-Centric Communication: I translate complex technical jargon into clear business decisions. Stop managing technical debt and start scaling. Let’s connect to discuss your project requirements. "In the age of AI, infrastructure is no longer just about uptime—it's about Intelligence and Speed." As a Senior Solutions Architect & AI Developer with 12+ years of experience, I don’t just build systems; I build Intelligent Ecosystems. I bridge the gap between heavy-duty Cloud Infrastructure and cutting-edge Artificial Intelligence, enabling businesses to automate complex workflows and gain a massive competitive edge. I specialize in the "Modern Tech Trifecta": Robust Cloud Architecture, Scalable Full-Stack Development, and Custom AI Integration. Whether you need to deploy a private LLM, build a RAG-based AI agent, or secure a global enterprise network, I deliver production-ready solutions that scale. 🚀 The High-Value Pillars I Deliver: 1. AI Engineering & Intelligent Automation (New & Powerful) LLM Integration: Developing custom applications powered by OpenAI, Anthropic, or Open-Source models (Llama 3, Mistral). RAG Systems: Building "Chat with your Data" solutions using Vector Databases (Pinecone, Weaviate) for intelligent document retrieval. AI Agents: Designing autonomous agents for task automation using frameworks like LangChain or CrewAI. AIOps: Implementing AI to monitor, predict, and auto-heal cloud infrastructure. 2. Enterprise Cloud & DevOps (The Foundation) Architecture: Designing high-availability environments on AWS & Azure. Virtualization: Expert-level optimization of VMware (vSphere) and Proxmox for maximum hardware utilization. CI/CD: Automating the bridge between code and deployment for seamless, zero-downtime updates. 3. Full-Stack Web Engineering Custom Development: Architecting scalable backends and intuitive frontends that integrate seamlessly with AI APIs. ERP Systems: Deep customization of ERPNext & Frappe, including AI-driven insights and automated reporting. 4. Cybersecurity & Defense Hardening: Protecting AI models and sensitive data from leaks and attacks. Network Security: Advanced Cloudflare configurations (WAF, Workers, Zero Trust). 🛠 Technical Arsenal (Advanced) AI & Data: OpenAI API, LangChain, Vector DBs, Python (FastAPI/Flask), HuggingFace. Infrastructure: AWS (EC2, S3, Lambda), Azure, VMware, Proxmox, Docker, Kubernetes. 📩 Click "Invite" or "Hire" to start a conversation.