Hire the Best Team Foundation Server Specialists

✏️ TOP RATED PLUS WITH PROVEN 10+ YEARS EXPERIENCE IN SERVER ADMINISTRATION & DEVOPS ✏️ 5 STAR REVIEWS ALL THE TIME ✏️ ASSURED PROFESSIONAL WORK ✏️ FANTASTIC WEEKEND SUPPORT ✏️ GOOD AVAILABILITY IN USA WORKING HOURS ✏️ TIGHT DEADLINES, YOU ARE ON THE RIGHT PROFILE ✏️ 07 DAYS FREE MAINTENANCE/SUPPORT AFTER COMPLETION OF ASSIGNMENT. Linux & Windows Server Administrator with more than 10 years of Experience. - Amazon Web Services (AWS), Google Cloud Platform (GCP), Microsoft Azure, Alibaba Cloud, DigitalOcean, Linode, OVH, Vultr, Rackspace, Hetzner, Oracle Cloud, Kamatera, Contabo, Scaleway, InterServer, Liquid Web, Hostinger, BlueHost, HostGator, GoDaddy, Media Temple, Namecheap, DreamHost, SiteGround, A2 Hosting, InMotion Hosting, iPage, GreenGeeks, AccuWeb Hosting, TMDHosting, FastComet, Cloudways, WP Engine - Docker, bastion host, Kubernetes, Ansible - Apache, IIS, Nginx, Tomcat, Varnish, Mod_pagespeed - Control Panel: cPanel, WHM (WebHost Manager), Plesk, DirectAdmin, Webmin, Virtualmin, VestaCP, ISPConfig, Ajenti, CentOS Web Panel (CWP), CyberPanel, Froxlor, Ensim, InterWorx - OS: CentOS, Debian, RHEL, Ubuntu, Windows Server. - Mail Server: Exim, Postfix, Sendmail, PowerMTA, InterSpire, Sendgrid - Database: Mariadb, MySQL, SQL Server, PostGreSQL - DNS: Domain management, MX, CNAME, SPF, DKIM, TXT, Cloudflare, CDN firewalls - WebSite Setup, Optimization and Migration Support for Wordpress, Joomla, Net, Magento, Xcart, Opencart based websites - Experience with Chef, Puppet, Docker or similar applications - SSL Setup, Website Security, Server Hardening, Windows Linux Maintenance Troubleshooting, and Monitoring. #LinuxAdministrator, #WindowsServerAdministrator, #SystemAdministrator, #DevOpsEngineer, #CloudEngineer, #AWS, #Azure, #GoogleCloud, #Docker, #Kubernetes, #Ansible, #Terraform, #Apache, #Nginx, #cPanel, #Plesk, #ServerMigration, #ServerHardening, #SSLConfiguration, #PowerMTA, #Postfix, #EmailDeliverability, #WordPressSupport, #WebHosting, #Virtualization, #VMware, #HyperV, #BashScripting, #MySQL, #DNSManagement, #Cloudflare #SillyTavern

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.

Your server is down. Your team is stuck. Your infrastructure is holding your business back. That's where I come in. I'm a Senior Systems Administrator with 10+ years of hands-on experience managing Linux and Windows server environments for enterprise-scale operations including 7 years at Nayatel, one of Pakistan's largest ISPs, where I owned infrastructure serving thousands of concurrent users. I've migrated complex on-premise systems to cloud environments with zero downtime, hardened servers against real threats, and built automation pipelines that eliminated hours of manual ops work every week. ━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I HELP YOU WITH ━━━━━━━━━━━━━━━━━━━━━━━━ Server Setup & Administration Linux (Ubuntu, CentOS, RHEL) and Windows Server provisioning, configuration, patching, and troubleshooting. You get a stable, optimized server not just one that's running. Cloud Infrastructure (AWS & Azure) Deployments, migrations, cost optimization, and ongoing management. I hold AWS Solutions Architect and CloudOps certifications and have managed multi-cloud environments in production. Security & Hardening Firewall configuration, OS hardening, intrusion detection (Wazuh, ELK Stack), SSL/TLS, VPN setup, and penetration testing. I don't just set it up, I make sure it stays locked down. Automation & DevOps Support Terraform, Ansible, Docker, Kubernetes, CI/CD pipelines. Repetitive manual tasks get automated. Deployments become consistent and reliable. Database & Network Operations PostgreSQL, MySQL, MariaDB administration. DNS management, email servers (Zimbra, Axigen), routing, and VPN configuration. ━━━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS WORK WITH ME AGAIN ━━━━━━━━━━━━━━━━━━━━━━━━ Most infrastructure freelancers disappear after delivery. I don't. I document everything, explain what I did and why, and stay available if something comes up after handoff. Two decades of enterprise ops work taught me that reliability is the job, not just technical skill. I keep communication clear and direct. No jargon dumps. No vague updates. You'll always know exactly where things stand. ━━━━━━━━━━━━━━━━━━━━━━━━ CERTIFICATIONS ━━━━━━━━━━━━━━━━━━━━━━━━ AWS Certified Solutions Architect – Associate AWS Certified CloudOps Engineer – Associate AWS Certified Cloud Practitioner Microsoft Certified: Azure Fundamentals Certified Kubernetes Administrator (CKA) ━━━━━━━━━━━━━━━━━━━━━━━━ LET'S TALK ━━━━━━━━━━━━━━━━━━━━━━━━ If your infrastructure needs to be more stable, more secure, or better managed, send me a message. I'll tell you honestly whether I can help and what that looks like.

⭐️ Top Rated Plus - Top 3% Expert on Upwork 🕒 9000+ Working Hours ✅ 20+ Years of Expertise ✅ 100% Job Success ✅ 300+ Successful Projects Finished ✅ 5 Star Rating Hello, I'm Oleksandr. As a seasoned Linux System Administrator and DevOps Engineer with over 20 years of experience I specialize in delivering robust IT solutions that enhance operational efficiency and security. My expertise spans across various domains, including: ▪ DevOps & Automation: Successfully implemented automated provisioning using Ansible, streamlining deployment processes and reducing manual intervention. ▪ Linux & FreeBSD Maintenance: Managed and optimized server environments on CentOS, Debian, Ubuntu, RHEL, and FreeBSD, ensuring high availability and performance. ▪ Cloud Hosting: Deployed and maintained scalable cloud solutions on AWS, Azure, and DigitalOcean, enhancing infrastructure reliability and scalability. ▪ Virtualization: Utilized Docker, VirtualBox, and OpenVZ to create flexible and efficient virtual environments, supporting diverse application needs. ▪ Web & Database Servers: Configured and maintained Apache, Nginx, MySQL, PostgreSQL, and MongoDB servers, ensuring secure and efficient data handling. ▪ Networking & Security: Implemented secure networking solutions, including VPNs and firewalls, to protect sensitive data and maintain network integrity. I am committed to continuous improvement and staying abreast of the latest industry trends. My approach is rooted in ITIL best practices, ensuring incident management and business continuity planning are at the forefront of my work. Let's collaborate to drive your IT projects to success with innovative solutions and expert guidance.

I’m an experienced Jira Administrator and IT Service Management Professional with a strong background in building efficient support systems, managing teams, and improving workflows in fast-paced environments. I specialize in Jira Service Management, ITSM processes, and SaaS support, helping teams streamline operations, reduce ticket resolution time, and create scalable systems that actually work in production. Over the years, I’ve handled end-to-end support operations including ticket triaging, SLA management, incident handling, and system transitions. I’ve also led teams in hybrid environments, ensuring smooth day-to-day operations while maintaining high service quality. What I bring to the table: * Jira Service Management setup and optimization (workflows, automations, SLAs, queues) * Jira project administration (company-managed and team-managed projects) * ITSM best practices (incident, request, problem, and change management) * Process improvement and workflow design * SaaS and technical support (L1–L2) * Team leadership and escalation handling * Documentation and knowledge base creation * Tools: Jira, Confluence, SCCM, HPDM, Microsoft Azure, Intune (learning and applying) Why clients work with me: I don’t just configure tools. I understand the operations behind them. I focus on creating systems that are practical, scalable, and easy for teams to adopt. Whether you need a full helpdesk setup, workflow redesign, or ongoing Jira administration, I can step in and deliver with minimal supervision.

☘ TOP RATED · 100% Job Success Senior System / DevOps Engineer with 13+ years of experience, specializing in the hosting industry, cloud infrastructure, and automation on AWS, GCP, and Azure. AWS Certified Solutions Architect – Associate. Core expertise: • Cloud & Infrastructure — AWS (EC2, VPC, RDS, Lambda, CloudFront, Route53, ELB, S3, ECS/ECR), GCP, Azure • Infrastructure as Code — CloudFormation, Terraform, Ansible • CI/CD & Automation — Jenkins, GitHub Actions, Bash, Python • Containers — Docker, Docker Compose, Kubernetes • Hosting & Web Stack — WordPress, Node.js, Ruby on Rails, .NET Framework / .NET Core Top projects: ☘ AWS Migration & Modernization — Migrated a production workload from AWS Lightsail to a multi-region AWS architecture (VPC, EC2 Auto Scaling, RDS Serverless v2, Route53, CloudFront, ELB, S3, Lambda). Fully managed as code with CloudFormation and automated via GitHub Actions and Python. ☘ Jitsi Video Platform — Provisioned, installed, and configured a production Jitsi deployment using Terraform and Ansible. ☘ Multi-Stack Web Hosting on OVH Cloud — Built, deployed, and managed JavaScript, Node.js, WordPress, and Ruby on Rails sites using Jenkins and Docker Compose. ☘ .NET on AWS — Dockerized and deployed .NET Framework and .NET Core APIs to AWS ECS/ECR with Jenkins and GitHub pipelines. I'm responsive throughout the day and happy to provide ongoing support after a project wraps up. Feel free to reach out any time — I'd be glad to help.