Gayantha Srinath

I have been working as a Systems Administrator for the past five years at few Companies, where I have gained extensive experience in managing Azure Cloud resources and supporting Windows Server 2008 R2, 2012 R2 and 2016, ADDS, SMB environments. I have also gained valuable experience in managing and supporting Linux servers, including Red Hat Enterprise Linux 7 and 8, CentOS 7 and 8, Ubuntu 20.04 LTS, Debian as well. I have also gained experience in administering in PHP and Java EE based web application with Oracle 11g, MySQL 5.7 and 8.

Total years of work experience 7+
Designation: - System Administrator – [25th April 2022 – August 2022]
Company: - OPENARC Systems Management (Pvt) Ltd.
Duties and Responsibilities.
• Defining and improving processes and services with cost effective manner.
• Root cause analysis of Windows / Linux server system and applications.
• Linux systems troubleshooting, task automation and bash scripting.
• Administration of SCM (GIT and SVN).
• Monitoring network service and servers using Azure tools and Zabbix.
• Maintain ADDS 2016, Group Policies.
• Maintaining Servers and web application On-premise and Cloud, LB/HA configurations.
• Administration of FortiGate with SSL VPN/Port Forwarding/Static: Routing/NAT configuration.
• Analyze the cost, Identification of risk on infrastructure, report to management and suggest solutions.
• G suite Administration.
• Azure cloud infrastructure administrations VMs VPN
• Renewal of Software licensing, subscription and domain and SSL.
Network and Systems Consultation [Jan 2021 - April 2022]
Designation: - Freelance services for several companies.
Duties and Responsibilities.
• Suggest network system related solutions and consultation.
• Linux/Windows/Network /Peripheral device and systems troubleshooting.
Designation: - Systems Administrator (June 2020 – Jan 2021)
Company: - Headstart Pvt Ltd (Subsidiary of Dialog Axiata)
Duties and Responsibilities.
● Azure cloud infrastructure administrations VMs VPN WAF VNET STORAGE Web Services
● Office 365 Administration and Azure AD administration. With IAM Roles.
● Maintain security, backup, and redundancy strategies on azure resources.
● Maintaining and supporting web-based PaaS/ SaaS / Docker on azure.
● Troubleshoot production issues and perform root-cause analysis in Linux base web system.
● Defining and improving processes and services.
● Preventive maintenance, proactive monitoring to ensure the critical system availability
● Linux systems administration, troubleshooting, patch update and shell scripting.
● Maintaining CI/CD environments with build automation tool such as Jenkins.
● Attending Level 2 3 support.
● Administration of Corporate endpoint security solution.
Designation: - Senior Network and System Specialist. March 2017- June 2020
Company: - OPENARC Systems Management (Pvt) Ltd.
Duties and Responsibility.
● Administration of IT Virtualization environment VMWare 5.5, 6.5.
● Administration of Firewalls/Network Analyzer/ Proxy/ Routers/Wireless AP, Controller/ and Network Switchers L2, L3.
● Administration of Server/Client Windows NT / Linux & Application Software installation.
● Administration of G Suite console.
● Preventive maintenance, proactive monitoring to ensure the critical system availability
● VPN Configuration and Implementations and Troubleshooting. SSL and PPTP
● ADDS Maintain with GPO Configurations.
● Deploy OS / Databases and applications installation and configurations.
● Administration of Corporate Endpoint Security Solution.
● Cloud Provisioning, web hosting and domain registrations, renewal.
● Data Backup and restoring using LTO tape 5 and NAS with VEEAM backup.
● Web Applications deployments on Apache Tomcat / httpd.
● Preparing proposals for the IT equipment and software purchases.
● Prepare necessary Documentation and Reports.
Designation: - Hardware and Network Technician. June 2016 – March 2017
Company: - Creative Information Technology (Pvt) Ltd.
Duties and Responsibility.
• Workstation and Laptop Repairing.
• CCTV Implementation and Troubleshooting.
• OS and Application Installation and Troubleshooting.

Completed Higher National Diplomas in Computing, Pearson UK.

Completed Diploma in Computer Network Administration, NYSC in Sri Lanka,

Completed Network Technician NVQ Level 04, NYSC in Sri Lanka,