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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