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.
Citrix ADC
Citrix
Office 365
Citrix Virtual Apps & Desktops
VMware vSphere
Microsoft Active Directory
Microsoft Windows
System Administration
VMware ESX Server
Managed Services
Virtual Desktop Infrastructure
SSL
Microsoft Exchange Online
Technical Support
Microsoft Azure
Kevin B.
Chicago, Illinois
$150/hr
5.0
115 jobs
✨🥇🏆 - I help businesses design, deploy, secure, and optimize IT infrastructure. With experience across networking, virtualization, cloud platforms, Microsoft technologies, and cybersecurity, I can step into existing environments, solve complex technical challenges, or build new infrastructure from the ground up.
🏆🥇✨ - My background includes working with enterprise and SMB environments, delivering everything from infrastructure migrations and platform upgrades to security improvements and performance optimization. I focus on implementing solutions that are secure, scalable, and aligned with project goals.
👉 My expertise includes:
✅ - Networking: Cisco, Meraki, UniFi, VLANs, VPNs, routing, switching, wireless deployments, and network troubleshooting.
✅ - Cybersecurity: SonicWall, Palo Alto, Fortinet, Cisco, firewall configuration, VPNs, access control, network hardening, and security best practices.
✅ - Virtualization: VMware vSphere, Citrix Virtual Apps & Desktops, Citrix MCS, PVS, App Layering, XenServer, Microsoft Hyper-V, VDI deployments, and server migrations.
✅ - Microsoft Technologies: Windows Server, Active Directory, Group Policy, DFSR, WSUS, Microsoft Exchange, Microsoft 365, Microsoft Entra ID (Azure AD), and PowerShell automation.
✅ - Storage & Infrastructure: Dell EMC, Pure Storage, SAN deployment, disaster recovery planning, and infrastructure modernization.
✅ - Systems Engineering: Server deployment, cloud migrations, performance tuning, infrastructure upgrades, automation, and complex troubleshooting.
🥇 - I believe technology should solve problems, not create them. My approach is straightforward: understand the objectives, identify the right solution, and deliver high-quality work with clear communication throughout the project. Whether it's a migration, virtualization deployment, network redesign, cloud implementation, security hardening, or resolving a complex infrastructure issue, I focus on delivering results that meet the agreed scope and timeline.
🥇 - If you need an experienced infrastructure engineer for a well-defined project, I'd be happy to discuss your requirements.
Citrix
Firewall
Network Security
Network Administration
Microsoft Active Directory
Cisco Meraki
VMWare
Server Virtualization
Storage Area Network
Ubiquiti
Hosting Setup
Cloud Migration
Email Security
Office 365
Fortinet
GoDaddy
Microsoft Hyper-V Server
Palo Alto Firewalls
WiFi
Microsoft Azure
Abhishek M.
Jaipur, India
$20/hr
4.9
14 jobs
#AWS, #Azure, #VMware #ManagedCloudServices (#MSP) #ServerAnd Email Migration #SLA 24/7/365 #Office365 Administration, #Exchange Administration #AWSDevOps, #AzureDevOps #ServerAdmin , #BackupSolutions, , #BackupMonitoring #ServiceNow #JIRAServiceDesk #Zendesk #Freshservice #ConnectWise #SolarWinds #ManageEngine #NinjaRMM #Kaseya #Atera #Automate
PROFILE
I am an experienced IT professional with over 9 years of expertise in system administration, specializing in server and desktop support. My skills include working with Microsoft Servers, Azure, and Citrix cloud services. I am also an expert in managing Office 365 and utilizing remote and RMM tools to provide efficient and effective IT solutions.
Citrix ADC
Citrix
Office 365
Microsoft Azure
Microsoft Windows
Server
Information Technology
Microsoft SharePoint
Virtualization
Cloud Computing
Computing & Networking
Windows Administration
Computer Network
Ravi Kant S.
Mohali, India
$35/hr
4.8
5 jobs
With 10+ years in network infrastructure and security, I help businesses resolve the issues that stop daily operations: failed VPNs, blocked firewall traffic, unstable branches, cloud connectivity and VoIP/SIP problems.
My focus is simple: find the actual root cause, restore services with minimum disruption, and avoid risky trial-and-error changes on a live network.
I have supported enterprise, government, data centre and multi-site business networks using Fortinet, Cisco and other leading firewall platforms, with hybrid connectivity across AWS, Microsoft Azure and Google Cloud.
My "Zero-Risk" Methodology
Many engineers rely on "guess and check" troubleshooting. I don't. I never make blind changes on a live production network. Before altering your setup, I map your current design, analyze your routing, and review firewall policies. I always pull backups, engineer a rollback plan, and execute controlled, fully documented changes. My goal is permanent stability, not temporary patches.
Core Expertise & Outcomes Delivered:
Firewall & Threat Management: FortiGate, Cisco, UniFi, and MikroTik. (Comprehensive policy audits, legacy rule cleanup, and strict hardening).
Complex VPN Troubleshooting: Site-to-Site, Remote-Access, IPsec, and SSL VPNs. If your tunnel is unstable or failing, I will stabilize it.
Cloud & Hybrid Infrastructure: AWS (VPC, Security Groups), Microsoft Azure (VNet, VPN Gateway, NSG), and Google Cloud. I build secure, seamless office-to-cloud and cloud-to-cloud bridges.
VoIP/SIP Optimization: Resolving SIP registration failures, NAT traversal bugs, one-way audio, and call drops using precise QoS, Voice VLANs, and Cisco CUBE support.
Advanced Routing & Switching: SD-WAN deployments, dual-ISP failover, VLANs, and comprehensive LAN/WAN/Wi-Fi troubleshooting.
How We Can Partner:
Emergency Troubleshooting: Rapid isolation and resolution of critical connectivity, routing, or security failures affecting your users.
Network Health & Security Audits: Deep-dive reviews to identify vulnerabilities, clean up messy configurations, and provide actionable security roadmaps.
Infrastructure Setups & Migrations: End-to-end planning for new branch offices, secure remote work environments, and physical security networks (CCTV/Biometrics).
Retained Network Support: Dependable, on-demand escalation support for internal IT teams, MSPs, software companies, and business owners.
My core technical experience includes:
• FortiGate configuration, migration and troubleshooting
• Cisco routers, switches, Firewall, Firepower, Voice Gateway and CUBE
• Fortigate, Fortinet, Mikrotik,
• IPsec, SSL and remote-access VPNs
• Site-to-site VPN and multi-site connectivity
• SD-WAN, dual-ISP failover and policy-based routing
• VLANs, routing, NAT, DHCP, DNS and LAN/WAN troubleshooting
• Firewall policy review, cleanup and security hardening
• Wi-Fi, office connectivity and branch network support
• AWS VPC, routing, security groups, VPN and hybrid access
• Azure VNet, NSG, VPN Gateway, peering and hybrid connectivity
• Google Cloud VPC, firewall rules, VPN and network access
• SIP, NAT traversal, RTP, one-way audio and call-drop issues
• Voice VLANs, QoS and firewall policies for voice traffic
• Network diagrams, documentation and handover notes
Where access permits, I take a backup, confirm the rollback plan, make controlled changes, test the traffic flow and document the result. This is especially important on production firewalls, remote branches, VPN tunnels and voice networks, where one quick change can affect another service.
Let’s Secure Your Network
Whether you need a one-time emergency fix, a comprehensive security audit, or ongoing support, I am here to help.
Please share:
Your primary firewall/hardware vendor and model.
The exact issue or project scope (and any recent changes made).
The number of sites or users affected.
Once I understand your exact setup and the business impact, I will provide a clear, safe plan of action to get your network running flawlessly.
Network Security
Firewall
Fortinet
Cisco
VPN
Amazon Web Services
Microsoft Azure
Google Cloud Platform
Cisco ASA
Cisco Firepower Threat Defense
Routing
LAN Administration
WAN Optimization
Wireless Network Implementation
Cloud Security
Security Testing
Network Architecture
Network Administration
Information Security Audit
Troubleshooting
Vincent M.
Bangalore, India
$35/hr
5.0
22 jobs
15+ years of experience(Full time Freelancer) , 9 years specializing in designing, implementing, and managing cloud-based solutions with expertise in Azure Cloud, Intune, Microsoft Endpoint for defender, Entra ID and modern workplace (M365) setup. Proven ability to lead large-scale cloud migration projects, optimize enterprise infrastructure, and deliver innovative solutions that drive business performance.
Service offering :-
• Designing and deploying cloud infrastructure using Azure services (IaaS & PaaS) .
• Planning and executing the migrating on-premises applications and workloads to Azure cloud environment.
• Building automation platforms by utilizing infrastructure as code (Infrastructure-as-a-code) to provision, deploy and manage Microsoft Azure cloud infra.
• Implementing cost optimization strategies, leading to a reduction in monthly cloud expenses.
• Conducting a comprehensive assessment of the existing VDI environment and recommend suitable solution.
• Designed a new architecture for Azure Virtual Desktop, Citrix Cloud, Workspot, Horizon.
• I offer fully white-labeled IT and Cloud services, allowing you to provide end-to-end solutions to your clients while I operate in the background under your brand.
• Designing and configuring Intune solution to manage endpoint devices.
• Supporting Entra ID solution to manage the cloud based identities.
• setting up Microsoft endpoint for defender solutions.
• Configuring M365 solution i.e Outlook, Team, One Drive for middle scale to enterprise customers.
I also help global organizations establish and manage their IT infrastructure in India, Philippines location. ensuring a secure, scalable, and cost-effective setup aligned with international standards.
My services includes:
• Network design and implementation for office environments
• Desktop and laptop deployment and configuration
• Thin client setup and integration with VDI platforms
• End-to-end Virtual Desktop Infrastructure (VDI) design and deployment (Azure Virtual Desktop, Citrix, etc.)
• Setting up Intune for managing devices.
• IT infrastructure planning for new office setups or remote teams
Azure Infrastructure :-
Compute: Virtual Machines, App Services,
Networking: VNet, DNS, VPN Gateway, Private Link
Storage: Azure Blob, File Shares, Queue, Disks
Security: Azure AD, Key Vault, Microsoft Defender, RBAC, Conditional Access
Dev Tools: Azure DevOps, GitHub, Repos, Artifacts
I am certified in:
• Microsoft Certified: Azure Administrator Associate
• MCP on 70-270 (Installing, Configuring, and Administering Windows XP Professional) in the year of 2008
• MCP on 70-290 (Managing and Maintaining a Microsoft Windows Server 2003 Environment) in the year of 2008
• CCA Certified- XenServer
• CCA Certified -XenApp 6.5
• CCA Certified – XenDesktop 5.0
• CCAA-- XenApp6.5
• Citrix Certified on XenApp/XenDesktop 7.6 (CCA-V).
• Azure Virtual Desktop Specialty.
Feel free to reach out to me at any time!
Citrix ADC
Windows Administration
Microsoft Azure
Citrix Hypervisor
Service Cloud Administration
Cloud Computing
Azure App Service
Technical Support
VMware Administration
Microsoft Azure Administration
Cloud Migration
Cloud Engineering
Abdus S.
Islamabad, Pakistan
$15/hr
5.0
22 jobs
Top Rated IT Infrastructure & Security Engineer with 700+ hours on Upwork and a 100% Job Success Score. I keep phone systems, firewalls, and servers running for small businesses and MSPs — so your team stays connected, protected, and productive.
What I do:
✔ IT Support & Helpdesk — remote troubleshooting, ticket handling (Tier 1–3), user onboarding/offboarding, printer and endpoint issues, and ongoing support contracts for businesses and MSPs
✔ 3CX VoIP — new deployments, V18→V20 migrations, SIP trunk configuration (Twilio, Broadvoice), IVR, queues, DID routing, integrations, and troubleshooting
✔ FortiGate firewalls — SSL-VPN setup for remote teams, firewall policies, split tunneling, secure remote access, and web filtering
✔ VMware virtualization — ESXi and vCenter administration, VM provisioning, migrations (P2V/V2V), performance troubleshooting, and host maintenance
✔ Backup & disaster recovery — Veeam configuration, backup health checks, and restore testing for VMware environments
✔ Infrastructure & Information Security — network segmentation (VLANs), firewall hardening, VPN security, access control, MFA rollout, patch management, and security best practices to protect your business data
✔ Microsoft 365 & Intune — tenant administration, Exchange Online, device enrollment, and MDM policies
✔ Networking — network design & deployments, troubleshooting, and network optimization
✔ Server administration — Windows Server, RHEL/Linux, Active Directory, and day-to-day IT support
How I work:
I follow ITIL-aligned practices — structured incident and change management, proper documentation, and root-cause fixes instead of quick patches. Fast response times, clear documentation after every job, and plain-English updates — no jargon, no disappearing mid-project. I've handled everything from single urgent fixes to long-term support contracts, and my clients keep coming back because things get done right the first time.
Let's talk:
Message me with your issue — I'll tell you honestly whether I can fix it, how long it will take, and what it will cost. No overselling, no surprises.
IT Support
Veeam
Microsoft Intune
Helpdesk
3CX
Office 365
Network Security
Technical Support
Customer Support
Windows Server
Ubiquiti
System Administration
Network Administration
VoIP
Firewall
VMware Administration
Red Hat Enterprise Linux
Disaster Recovery
Microsoft Active Directory
FortiGate Firewall
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