✅ Self-motivated Linux Server Administrator and Network Administrator with more than 10+ years of working experience with different Cloud providers. Ready to take up any challenge.
✅ Expert on,
💎 AWS, Google Cloud, Azure, DigitalOcean or onPrem server management.
💎 Setting up and manage different environment Web Server, Database Server, Mail Server, Load Balancer, Optimization and Security.
💎 Designing Web Server - Building web server based on Apache, Nginx, Nginx/php-fpm, Varnish as backend with high performance tuning and major security issues.
💎 Learning Management Systems – Moodle (Expert) including mobile app (Android & Apple IoS) customization
💎 Document Management Systems – Nextcloud (Expert) and onlyoffice
💎 Security - Malware removal, server hardening using firewall rules, restriction in server login, Web security, Security auditing, fail2ban, mod_security for web attack, mod_evasive DDOS attack prevention, Firewall setup CSF, UFW and iptables. Prevention from mail attack, SSL Certificate installation.
💎 Database Server - Building MySQL, Mariadb database server with high performance , troubleshoot database server problems, tweaking MySQL variables for performance.
💎 Scripting - Bash Scripting for monitoring servers, auto backup.
💎 Mail server- Building mail server for sending and receiving mails postfix, sendmail, setup mail client Roundcube, SquirrelMail, Rainloop, Horde. Dovecot for POP & IMAP, troubleshoot mail issues, configure mail for delivery in inbox.
💎 Monitoring services and servers – LibreNMS, Nagios monitoring tools, tweaking as per requirement, monitor servers using bash script, Tripwire.
💎 Amazon - AWS EC2 server setup, Security.
💎 Cloud Servers & Panel - Management of Ubuntu, Centos, Cpanel, CWP, WHM, Plesk, Webmin, Diretadmin, ISPConfig, JustHost, Godaddy, Linode, Rackspace, Amazon.
💎 Migration - Server migration, website migration, database server migration, mail server migration.
💎 VOIP Solutions - Asterix based PBX (Eg: VitalPBX)
💎 Video conferencing - Zoom (including on premise setup), Jitsi, BigBlueButton
💎 Virtualization Technology - VMware VSphere Esxi, KVM, Xen Server
💎 Networking (CCNP R&S and SP certified) - Hands on experience with CISCO, HP, Extreme, Juniper devices including wireless.
💎 Firewall configurations - Hands on experience with Palo Alto, Check point and Cisco ASA firepower.
✅ Please do not hesitate to contact me to discuss your project in detail and determine how my skills will positively contribute to your team.
Linux System Administration
System Administration
Server Virtualization
NGINX
Microsoft Azure
DNS
SSL
Moodle
Postfix SMTP Server
Cisco Certified Network Professional
Learning Management System
LAMP Administration
Squid
Web Hosting
Network Engineering
Mohammed F.
Galle, Sri Lanka
$55/hr
4.9
158 jobs
Bachelor of Engineering (BEng) in Computer Networking and Cloud Security, Cisco Certified CCNP - Enterprise, CCNP - Security, and CCNA Cyber Ops and Experienced IT, Network, Security Specialist skilled & I have more than ten years of experience with following,
- Assist in planning, design, documentation, and implementation of Network, Security, and System infrastructure
- Hands-on experience with configuration administration of Cisco, Meraki, HP, Dell, Ubiquiti, routers, switches, and network devices and Cisco ASA, Fortinet, SonicWall, PaloAlto, pfSense, OPNsense firewall devices
- TCP/IP, Routing and Switching Protocols RIP, EIGRP, OSPF, BGP, GLBP VRRP, HSRP, VLANS, STP, VTP, ACL, Security features
- IP Sec site to site and remote access VPN on Ubiquiti Unifi, Fortigate, SonicWall, PaloAlto, pfSense, OPNsense firewalls, AWS, Azure, GCP cloud services, and Strongswan, Openswan and Libreswan as well
- Familiar with security platforms such as IPS, IDS, Web Security Appliance, Email Security Appliance, and Cisco ISE
- Familiar with VOIP platforms such as FreePBX, Grandstrem, etc
Network Security
VPN
DNS
Grandstream
Fortinet
Cisco ASA
Network Monitoring
Palo Alto Firewalls
Firewall
Wireless Network Implementation
Cisco Certified Network Professional
PfSense
Ubiquiti
Cisco Router
Cisco IOS
Malintha P.
Sri Jayewardenepura Kotte, Sri Lanka
$25/hr
5.0
16 jobs
I am an experienced IT professional with over 10 years of hands-on experience and a flexible approach to work. Throughout my career, I have successfully completed numerous projects across different domains.
Having worked for more than 3 years as a Network Engineer in a broadcasting company (Sports TV channel), I have also gained extensive expertise in live video production and post-production. I am proficient in media-related applications such as Adobe Premiere Pro, After Effects, Blender, vMix, Resolume Arena, and Aximmetry (Unreal Engine).
Areas of expertise
Firewalls
Fortigate,Cisco ASA, Cisco Meraki, Draytek, MikroTik, Pfsense, IPCOP
IPS:
Snort, Suricata
Email Gateways:
Forti Mail, Symantec Bright Mail Gateway
Storage :
Synalogy, EMC, Thecus, HP SAN, Freenas, OpenFiler
OS :
Windows 2016 – 2008 R2, Redhat, Ubuntu Server, Centos, Windows 10 to 98
Servers :
Active Directory, Windows and Samba File Servers, Web Server Apache IIS, DNS Servers, Zimbra mail Server, Terminal Server TSPLUS, Radius Servers,
Networking :
Cisco Routers Configurations, Cisco Switches Configurations, Configuring VPN IPsec Site to Site
Video Production(Pre and Post);
Adobe Premiere Pro, Adobe After Effects, vMix
Network Administration
Windows Server
Network Security
Virtual LAN
Adobe Premiere Pro
FortiGate Firewall
VMware ESX Server
Red Hat Administration
Network Engineering
Python
Cisco Certified Network Associate
Virtualization
VMWare
Computer Network
Firewall
Mohamed Ismail M.
Kattankudi 02, Sri Lanka
$35/hr
4.8
73 jobs
Whether you’re setting up monitoring for the first time or operating a full NOC environment, the most common problems are the same: missed incidents, alert noise, and dashboards that don’t reflect reality.
I help organizations design and stabilize clear, reliable monitoring setups using Zabbix and related tools, and where scale or complexity requires it, evolve those setups into structured NOC and SOC operations without unnecessary overhead.
Many of my engagements start with straightforward monitoring implementations and grow over time as operational needs increase.
I work collaboratively with in-house engineers and adapt recommendations to existing constraints, budgets, and operational culture, rather than forcing textbook or vendor-driven solutions.
NOC / Monitoring
Zabbix, Prometheus, OpenNMS, Grafana
SOC / SIEM / EDR / XDR
Wazuh, TheHive, Cortex, MISP
Automation
Ansible, PowerShell, Shell, Python
Networking & Systems
Cisco IOS, Meraki, Juniper JunOS, MikroTik, Ubiquiti, HP Aruba, iLO, Fortinet, OPNsense, firewalls, WAFs, IPS
Servers & Platforms
Microsoft Server, CentOS, Ubuntu, Debian, Proxmox
Infrastructure & Cloud
IPAM, NetBox, Cloudflare, Azure, AWS, GCP, Hetzner, IBM Softlayer
Certifications & Education
CCNA · CCNP · CCDA
JNCIA-Junos
MCP · MCSA
ITIL v3 Foundation
MSc in Innovative Technology
Linux System Administration
Microsoft Windows
Python
System Monitoring
Microsoft Azure
System Maintenance
Grafana
Network Analysis
Network Monitoring
SNMP
DevOps
Prometheus
Microsoft Server
Network Design
Zabbix
Faisal A.
Malwala, Sri Lanka
$50/hr
5.0
1 jobs
I help businesses build secure, scalable infrastructure and automate the work that slows them down.
With a background in network engineering and cloud security, I design and deploy infrastructure that is reliable, hardened, and built to last. On the automation side, I build AI-powered workflows that cut manual work, reduce errors, and free teams to focus on what actually matters.
Core Services:
-Cloud Infrastructure: Designing and deploying scalable environments on Azure, AWS, and GCP. Containerised workloads with Docker, CI/CD pipelines, and infrastructure-as-code.
-Network Engineering: Firewall configuration (Fortinet), site-to-site and remote VPNs (IPSec/GRE), VLAN design, and network segmentation for performance and security.
-Cloud Security: Vulnerability assessments, penetration testing, security hardening, identity and access management, and compliance audits. Backed by CEH and Fortinet certifications.
-AI Automation: Building AI-powered workflows using Make, Zapier, and direct API integrations with Claude, GPT, and other LLMs. Custom scripting for complex automations that no-code tools cannot handle.
Background & Certifications:
-Bachelor of Engineering in Computer Networking, London Metropolitan University
-Microsoft Certified: Azure Administrator Associate
-Certified Ethical Hacker (CEH)
-Microsoft Certified: Azure Fundamentals
-Certifications in Fortinet, Network Security, and ICSI
I bring deep technical expertise paired with a practical understanding of how businesses actually run. Every solution I deliver is built for security, reliability, and long-term scalability, with clear documentation and direct communication throughout.
Ready to help you build infrastructure that works and automate the workflows that drain your team's time.
Network Security
System Administration
Computer Network
Network Engineering
Cloud Computing
Server Administration
Virtualization
IT Support
Cloud Security
Cloud Implementation
Azure DevOps
Microsoft Azure Administration
Make.com
Zapier
API Integration
Nawullage Sumudu P.
Maharagama, Sri Lanka
$15/hr
5.0
23 jobs
Hello,
I am a senior network engineer with 20+ years of overall experience in Network Engineering. I got myself certified in respective domains as well through CCIE(R&S) & ACMP, ACSP(Aruba Certifications).
I have held positions in Enterprise, System Integrator and Service Provider environments and gained extensive hands on experience in Network designing, implementation, troubleshooting and optimization in the domains of Routing & Switching, Wireless, Network Security and Unified Communication.
I strongly believe that my knowledge, experience and technical know-how in the field will equip me to exceed your expectations if the opportunity avails to me.
Network Administration
Aruba
Network Monitoring
Network Design
Cisco Certified Design Professional
Cisco ASA
Cisco CallManager
WiFi
Cisco Router
Network Access Control
OSPF
Cisco Certified Network Professional
Cisco Certified Internetwork Expert
Data Center Design
Cisco IOS
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