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Dananjaya
Sandeepa

System Engineer · Full-Stack Developer · Dubai

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System Engineer

DananjayaSandeepa

Mindset

Systems should run quietly. I set up backups before they're needed, document every change, and build tools that remove the same task from someone's day for good.

root@ds-core

            

          

        


        

          

            Dananjaya Sandeepa holding a laptop showing code
            

            
Open to freelanceFCA · Fortinet

          

          

            

            
“Keep it running. Then make it better.”

            How I approach every system I look after
          

        


        

          

            

            
Craft

            
Ten years running enterprise IT infrastructure: Active Directory, FortiGate firewalls, Microsoft 365, VMware and Hyper-V, backup and disaster recovery, and SAP / PACT ERP.

            
I also build the software companies run on: ERP, helpdesk, asset tracking, websites and mobile apps with Next.js, React Native and Node.js.

            
FortinetMicrosoft 365Next.jsReact NativeERP

          

          

            
            

              
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Location

              
Dubai,
UAE

              
25.2048°N, 55.2708°E

            

          

        

      


      

        7Projects
        NowSystem Engineer
Dunes Properties, Dubai
        Book a call
        30Skills
        6Services
        
      

    


    

      

        
Portfolio
Featured projects

        
Swipe · 7 projects

      

      

    


    

      

        
Toolkit
Technical skills

        
From the firewall at the network edge to the app on the user's phone.

      

      

        
Network & Security
  • FortiGate firewallsFCA
  • Cisco switching & routing
  • IPsec site-to-site VPN
  • SSL / remote-access VPN
  • DNS · DHCP · Wi-Fi
  • Endpoint protection

        
Identity & Cloud
  • Active Directory
  • Group Policy & OUs
  • Microsoft 365 admin
  • Exchange & Teams
  • User access control

        
Servers & Recovery
  • VMware
  • Hyper-V
  • BDRShield backup & DR
  • Hardware diagnostics
  • Level 2/3 support
  • Multi-site monitoring

        
ERP
  • SAP
  • PACT ERP
  • Oracle
  • Nova Core ERPbuilt

        
Development
  • Next.js
  • React
  • React Native
  • Node.js
  • Python
  • SQL
  • Tailwind CSS
  • REST APIs
  • Gemini / AI integration

      

    


    

      

        
What I offer
Services

        
For businesses in the UAE that need IT done properly without hiring a full-time team.

      

      

        
Websites & Web Apps
Business websites, booking pages and custom web apps that load fast and look right on every phone.
lavenderplazahotel.ae ↗dunesdubai.com ↗

        
Network & Firewall
FortiGate setup, branch-to-branch VPNs, office Wi-Fi and security policies.

        
Microsoft 365 & AD
Email migration, users and licences, Active Directory and access control.

        
Backup & Recovery
Backups that actually restore, with disaster recovery testing for servers and data.

        
Custom Business Systems
ERP modules, ticketing, asset tracking and internal tools built around how your team works.

        
Mobile Apps
iOS and Android apps with React Native, from the first screen to store release.

      

    


    

      

        
Schedule
Availability

      

      

        

          Open for meetings
          
Have a project or an IT problem?

          
Pick a day and time for a 30-minute call. Your request opens in WhatsApp so you can send it straight to me.

          
Weekday eveningsWeekend daytime

        

        

          
Month

          

          
          
Request on WhatsAppChoose a date first

        

      

    


    

      

        
Credentials
Certificates

        
Formal training in IT, e-commerce and cybersecurity.

      

      

        
FCA
Fortinet Certified Associate in Cybersecurity
Fortinet Training Institute
2024

        
HND
Higher National Diploma in Information Technology
E-Soft Metro College
In progress

        
DIP
Diploma in IT with E-Commerce
E-Soft Metro College
2015

        
ENG
Certificate in Spoken English
University of Colombo
2016

      

    


    

      

        
Career
Experience

        
Ten years of enterprise IT in Dubai and Sri Lanka.

      

      

        
Oct 2025 – Present
Current
System Engineer
Dunes Properties · Dubai
  • Run core infrastructure: AD domain controllers, firewalls and database systems.
  • Built the Dunes M-Desk asset management and helpdesk system, corporate websites and mobile apps.
  • Manage backup and DR with BDRShield; administer SAP and PACT ERP.
  • Level 2/3 support and network monitoring across the Dubai branches.

        
Jul 2024 – Oct 2025
System Administrator
Alawael Investment Group · Dubai
  • Secured the perimeter with FortiGate: site-to-site IPsec, SSL VPN and granular policies.
  • Managed AD users, groups and OUs; fixed DNS, DHCP, VPN and Wi-Fi issues.
  • Led hardware lifecycle, upgrades and preventive maintenance.

        
Oct 2022 – May 2024
Senior Analyst
HCL Technologies · Sri Lanka
  • First point of contact for incidents: logged, prioritised, resolved or escalated within SLA.
  • Account setup, access requests and remote support for staff and contractors.

        
Jun 2016 – Sep 2022
System Administrator
Capital Maharaja Group · Sri Lanka
  • Supported networks, servers, printers and business applications across the group.
  • Configured firewalls, routing, IPsec tunnels and remote-access VPNs; ran backups and upgrades.

      

    


    

      

        
Contact

        
Let's work together

        
Need a website, a network that stays up, or a system your team will actually use? Message me and I'll reply within a day.

        

          
Emaildananjayaasandeepa@gmail.com

          
Mobile+971 50 563 7009

          
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