Hire the Best Nagios Specialists
in the United Kingdom

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Ahsan S.

London, United Kingdom

$75/hr
4.9
43 jobs

Helping businesses simplify and secure their IT environments using Microsoft 365 and virtual desktop solutions. With over a decade of experience, I specialise in designing, deploying, and managing Microsoft 365, Azure Virtual Desktop (AVD), and Citrix environments — with a strong focus on performance, security, and cost-efficiency. I also have deep expertise in Citrix NetScaler (ADC) to ensure high availability, secure access, and optimised traffic management. I work with SMB and enterprise clients across the UK, US, and international markets, with experience supporting managed services, professional services, and healthcare. Services I Offer: • Microsoft 365 Solutions for businesses • Citrix Virtual Apps and Desktops deployment and optimisation • Azure Virtual Desktop (AVD) design, rollout, and support • Nerdio Manager for Enterprise & MSP configuration and cost control • Citrix NetScaler (ADC) setup – including Gateway, Load Balancing, and SSL VPN • Hybrid environments – integrating on-prem with Azure • FSLogix configuration and storage optimisation • Secure remote access, MFA, and identity integration with Azure AD • Troubleshooting, health checks, and performance tuning About Me: • 10+ years of hands-on experience • Microsoft, Citrix, and Nerdio certified • Practical expertise across both cloud and on-prem environments • Strong communication and a client-focused approach • UK-based and flexible with international time zones Let’s connect to discuss how I can help streamline and secure your virtual desktop infrastructure.

  • Office 365
  • Citrix Virtual Apps & Desktops
  • VMware vSphere
  • Microsoft Active Directory
  • Microsoft Windows
  • System Administration
  • VMware ESX Server
  • Citrix
  • Managed Services
  • Virtual Desktop Infrastructure
  • Citrix ADC
  • SSL
  • Microsoft Exchange Online
  • Technical Support
  • Microsoft Azure
Sajjad A.

Sheffield, United Kingdom

$25/hr
5.0
11 jobs

Hi, I'm Sajjad, a freelance Technical Consultant and Cybersecurity Analyst with over 4 years of experience supporting small, medium, and large organizations in managing, optimizing, and securing mission-critical IT systems. My background combines enterprise infrastructure administration with modern cybersecurity practices, enabling me to deliver reliable, scalable, and secure solutions tailored to business needs. Core Expertise ✔ Oracle Database Administration (11g, 12c, 19c) ✔ Microsoft SQL Server Administration ✔ Oracle Utility Applications (MDM, OUA, C2M, CC&B) ✔ Oracle WebLogic & Middleware Administration ✔ Red Hat Enterprise Linux (RHEL) Administration ✔ Database Performance Tuning & Optimization ✔ System Deployment, Migration & Upgrades ✔ Backup, Recovery & High Availability Solutions Cybersecurity & Compliance ✔ ISO/IEC 27001 Compliance & Internal Auditing ✔ Vulnerability Assessment & Risk Management ✔ Security Information and Event Management (Wazuh SIEM) ✔ Intrusion Detection Systems (Suricata IDS) ✔ Security Monitoring & Incident Response ✔ Security Hardening & Configuration Management ✔ Cybersecurity Controls aligned with NIST, ISO/IEC 27001, and PCI DSS frameworks I am committed to helping organizations improve system performance, strengthen security posture, maintain compliance, and minimize operational risks. Whether you need database administration, infrastructure support, cybersecurity consulting, compliance guidance, or threat detection solutions, I provide professional, results-driven services with a strong focus on quality and reliability.

  • Oracle Database Administration
  • Oracle Applications
  • Oracle Cloud
  • Oracle Data Guard
  • Linux System Administration
  • Oracle RAC
  • Oracle WebLogic Server
  • Oracle Reports
  • Oracle Application Server
  • Oracle Business Intelligence
  • Oracle Forms
  • Oracle Fusion Middleware
  • Microsoft Azure Administration
  • Oracle Application Framework
  • Oracle Upgrade
  • Oracle Fusion Applications
  • Ubuntu
  • Oracle Data Integrator
  • Oracle Hospitality Inventory Management
  • Oracle Performance Tuning
Mohammed Ali A.

Crawley, United Kingdom

$65/hr
4.6
29 jobs

AWS DevOps Engineer with deep experience in Terraform, Kubernetes, CI/CD, and Automation. You hire me to design and operate secure, scalable cloud infrastructure on AWS and Azure. You get reliable systems, automated delivery, and controlled cloud spend. I bring 9+ years in cloud and DevOps, and over 24 years in IT operations. I support SMEs, SaaS teams, and growing businesses running production environments. Core services:   • AWS and Azure cloud architecture   • Terraform and infrastructure as code   • Kubernetes, EKS, AKS, ECS, ACA   • CI/CD pipelines with GitHub Actions, GitLab CI, Jenkins & Azure DevOps   • DevSecOps and cloud security   • Monitoring, logging, and alerting   • Cloud cost optimisation Technical stack: AWS, Azure, GCP, Terraform, Kubernetes, Docker, Helm, GitHub Actions, GitLab CI, Jenkins, Azure DevOps, Ansible, CloudFormation, Prometheus, Grafana, CloudWatch, Python, Bash, Linux How you benefit:   • Faster deployments   • Fewer outages   • Predictable infrastructure   • Secure by default systems   • Clear documentation and handover Process:   • Review your current setup   • Design cloud architecture   • Build with Terraform and CI/CD   • Deploy and monitor   • Optimise cost and performance Message me with your AWS, Azure, or DevOps challenge. I respond fast and work hands-on.

  • DevOps
  • Amazon Web Services
  • AWS CloudFormation
  • Microsoft Azure
  • Azure DevOps
  • Computing & Networking
  • Linux System Administration
  • Security Infrastructure
  • Infrastructure as Code
  • Infrastructure Management
  • Big Data
  • Terraform
  • Containerization
  • Docker
  • Kubernetes
Maxin J.

Daventry, United Kingdom

$15/hr
5.0
59 jobs

Senior Linux System Administrator | DevOps Engineer | Cloud & Hosting Infrastructure Expert Hi, I’m Maxin, a hands-on Linux and DevOps professional with 10+ years of experience managing, optimizing, and securing server infrastructure across cloud, hosting, and enterprise environments. I combine deep technical knowledge with real-world troubleshooting skills, and I pride myself on delivering clean, stable, well-documented systems that just work. 🔧 What I Do Best: 🖥️ Linux & Server Management • Strong with CLI and GUI-based systems – RHEL, Rocky, AlmaLinux, Ubuntu, Debian • Experienced with server hardening, tuning, kernel-level debugging, RAID, LVM, and GRUB recovery • Comfortable with both panel-based (cPanel, Plesk, CyberPanel) and bare-metal servers ☁️ Cloud Platforms – AWS | Azure | GCP | OVH | DigitalOcean • Infrastructure setup and cost-optimized scaling • EC2, S3, IAM, VPC, Azure VMs, Blob storage, cloud networking • Multi-cloud and hybrid cloud management experience ⚙️ DevOps & Automation • Automation using Bash, Ansible, GitHub Actions, Jenkins • Proficient in CI/CD pipelines, deployment scripts, and auto-scaling environments • Strong experience with Docker, Docker Compose, and lightweight containerization • Beginner exposure to Kubernetes and Helm (primarily home lab) 🛠️ Scripting & Code • Expert in Bash, solid experience with Python (for utilities, automation), and PHP (for WHMCS and web tasks) • Cron job automation and proactive system reporting 🌐 Web Hosting & Panels • Apache, Nginx, LiteSpeed – full web stack setups and optimizations • Expert with cPanel, Plesk, CyberPanel, SolusVM, WHMCS billing systems • Email server configuration and tuning – Zimbra, Postfix, SPF, DKIM, DMARC • Domain & DNS management – Cloudflare, registrar panels, SSL certs 🔒 Monitoring, Security & Performance • Nagios, Zabbix, Grafana, Prometheus – alerting and performance dashboards • Security: OSSEC, SELinux, AppArmor, iptables, firewalld, Fail2Ban, WAF • Load balancing, failover design, and high availability (HA) concepts 🧰 Virtualization & Backup • VMware vSphere/ESXi, Proxmox, KVM – VM lifecycle management • Backup systems: Backblaze B2, AWS S3, Veeam, RClone setups for automation ✅ Why Hire Me? • Proven experience handling production environments with 99.9%+ uptime • Calm under pressure – capable of solving L3-level issues during on-call emergencies • Always document, automate, and simplify wherever possible • UK-based (Daventry), fluent communicator, open to both short- and long-term contracts • No sponsorship required – I’m on a dependent visa and can renew independently • Available for remote work or on-site visits within the UK Whether you're running high-traffic WordPress sites, custom web apps, or enterprise services, I’ll help you build reliable infrastructure, automate the boring parts, and keep your systems secure and performing at their best. I’ve worked with startups, agencies, data centers, and SaaS providers – and I bring the same dedication to every project, big or small. Let’s connect. I’d love to help you take the stress out of infrastructure.

  • DevOps
  • Database
  • Database Management
  • cPanel
  • CloudLinux
  • Linux
  • MySQL
  • Debian
  • Proxmox VE
  • Plesk
  • Scripting
  • Bash
  • Hosting Setup
  • Web Hosting
  • DNS
Jakub L.

London, United Kingdom

$50/hr
4.9
16 jobs

I'm self motived linux system administrator with can do attitude. I have over 10 years of professional experience with a operating systems and system administrator. During my career I've been working with many different technologies and tools, that gives me ability to choose variety of solutions that meets customer expectations. What I can do: Linux Servers (RedHat, Debian) Shell Scripting (Bash/Perl) PHP/MySQL Linux Maintenance/Troubleshooting HAProxy Web Servers (Apache) Monitoring(Nagios/OML) and many others

  • Nagios Core
  • Perl
  • DNS
  • DHCP
  • Virtualization
  • FTP
  • Bash Programming
  • MySQL
  • Red Hat Administration
  • Linux System Administration
Attiq R.

Bolton, United Kingdom

$95/hr
5.0
12 jobs

I build AI automations that remove hours of manual work: custom AI agents, Claude API & Claude Code development, MCP servers, workflow automation (n8n, Zapier, Make), document and report generation pipelines, data extraction, chatbots, and internal tools. What makes me different from other AI developers: 15+ years of enterprise IT and network security (CISSP, CCSM Elite) means I ship production-grade automation, not fragile prototypes — proper error handling, security by design, documentation, and clean handover. WHAT I CAN BUILD FOR YOU ✔ AI agents that triage inboxes, tickets, and alerts ✔ Automated report generation from raw data (see portfolio) ✔ Claude API / Claude Code integrations and custom tooling ✔ MCP servers connecting AI to your systems ✔ API integrations and data pipelines between your tools ✔ Chatbots grounded in your documents Recent automation work (portfolio below): a firewall config audit tool producing client-ready reports, an ISO 27001 compliance gap analysis pipeline, and an alert triage agent that cut alert noise by 91%. ————— NETWORK SECURITY SERVICES ————— CCSM Elite (Check Point Certified Security Master Elite), CISSP (ISC2), CCNP Security and Palo Alto NGFW certified. 15+ years with Check Point (VSX, MDS, Quantum Smart-1 Cloud, Infinity, Harmony), Cisco ASA/Firepower, and Palo Alto firewalls. Numerous Check Point upgrades from R75.x to R81.x across standalone, distributed, cluster, and virtual environments. Firewall deployment, migration, upgrades, troubleshooting, policy audits, and 1-to-1 CCSA/CCSE training. WHY CLIENTS CHOOSE ME ✔ Client focus: I provide VALUE and go the extra mile ✔ Responsiveness: fast, open communication at every step ✔ Production quality: certified security professional with an enterprise background ✔ UK-based, available 30+ hrs/week Tell me what repetitive work you'd like to eliminate — let's talk.

  • Network Security
  • Cisco ASA
  • Firewall
  • Check Point
  • Web Development
  • Network Administration
  • Full-Stack Development
  • Python
  • Cisco Certified Network Associate
  • AI Agent Development
  • Automation
  • Claude
  • Chatbot Development
  • Prompt Engineering
  • API Integration
  • Zapier
  • n8n
  • Make.com
  • Artificial Intelligence
  • ChatGPT

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