Rishan Dunusinghe

Rishan Dunusinghe Email and Phone Number

Kensington Gardens, SA, AU
Rishan Dunusinghe's Location
Burnside, South Australia, Australia, Australia
Rishan Dunusinghe's Contact Details

Rishan Dunusinghe work email

Rishan Dunusinghe personal email

About Rishan Dunusinghe

At the forefront of Sri Lanka Telecom's IT advancements, my role as a Systems Administrator harnesses over ten years of industry acumen, underscored by a deep-seated expertise in Oracle E-Business Suite (EBS). My tenure has been marked by leading multifaceted projects encompassing hardware migrations, database upgrades, and the crucial implementation of cybersecurity measures.The organization has benefitted from my proficiency in managing critical systems and enhancing enterprise efficiency. Within our team, we've embraced challenges such as transitioning to Exadata platforms and deploying Single Sign-On solutions, all while upholding the integrity and security of our systems in alignment with ISO 27001 standards.

Rishan Dunusinghe's Current Company Details
Department for Infrastructure and Transport

Department For Infrastructure And Transport

View
System Support Officer
Kensington Gardens, SA, AU
Website:
dit.sa.gov.au
Employees:
1785
Rishan Dunusinghe Work Experience Details
  • Department For Infrastructure And Transport
    System Support Officer
    Department For Infrastructure And Transport
    Kensington Gardens, Sa, Au
  • Sri Lanka Telecom
    System Administrator
    Sri Lanka Telecom Jul 2015 - Present
    Sri Lanka
    1. Hardware Migration (Oracle SPARC M6 to Exadata) and DR Implementation for Oracle EBS• System Analysis & Integration: Conducted thorough analysis of existing UNIX environments and facilitated seamless migration to Exadata. Configured Linux servers and optimized network, storage, and OS-level performance for enhanced system efficiency.• Disaster Recovery Planning: Implemented disaster recovery strategies using Oracle Data Guard, ensuring high availability and automated failover for… Show more 1. Hardware Migration (Oracle SPARC M6 to Exadata) and DR Implementation for Oracle EBS• System Analysis & Integration: Conducted thorough analysis of existing UNIX environments and facilitated seamless migration to Exadata. Configured Linux servers and optimized network, storage, and OS-level performance for enhanced system efficiency.• Disaster Recovery Planning: Implemented disaster recovery strategies using Oracle Data Guard, ensuring high availability and automated failover for business-critical applications.2. Oracle Database 12c to 19c Upgrade for Oracle EBS• Upgrade Execution: Led the preparation and execution of Oracle Database upgrade from 12c to 19c on Oracle Linux platform, ensuring OS compatibility and minimal downtime.• System Optimization: Applied performance tuning techniques and managed critical patch updates to optimize system performance and security post-upgrade.3. Java Web Start Implementation for Oracle EBS• System Compatibility & Configuration: Ensured Linux server environments were fully compatible with Java Web Start, managing necessary installations and configurations for smooth operation.• Security Hardening: Enhanced system security by configuring SSL certificates and JVM security policies, ensuring a secure transition from traditional Java plug-ins.4. APEX Installation on Exadata Oracle 19c Database• APEX Installation and Configuration: Successfully installed and configured Oracle Application Express (APEX) on Exadata with Oracle 19c, ensuring high availability and optimized performance.5. Single Sign-On Implementation for EBS using MiniOrange Connector• Successfully integrated single sign-on (SSO) for Oracle EBS using MiniOrange connector streamlining authentication processes across the enterprise.6. EBS Enterprise Command Center (ECC) Implementation• System Deployment & Configuration: Configured Linux servers for the deployment of Oracle EBS ECC, ensuring optimal performance of data loads and dashboards. Show less
  • Srilankan Airlines Official
    Associate System Administrator
    Srilankan Airlines Official Nov 2012 - Jun 2015
    Sri Lanka
    • Integrated key data feeds from Airline Passenger Service Systems, Revenue Management Systems, and Passenger Revenue Optimization Systems into an operational data warehouse.• Facilitated the generation of business-critical reports using OBIEE, ensuring data accuracy and availability for decision-making.
  • Dms Electronics (Pvt) Ltd
    Associate Network Engineer
    Dms Electronics (Pvt) Ltd Sep 2012 - Nov 2012
    Sri Lanka
    ● Multi-vendor network integration with Cisco, Nexus, Juniper, Fortinet, Arista, NetScreen devices● Routing and switching and VPN technologies OSPF, EIGRP, BGP, MPLS, VRF, IPVPN, VPLS, GRE, DMVPN, VTP and spanning tree configuration and troubleshooting
  • Huawei Technologies
    Technical Support Engineer
    Huawei Technologies Jul 2012 - Sep 2012
    Sri Lanka
    ● Responsible for Preventive/Corrective & Active/Passive Maintenance of Sri Lanka Bharti Airtel network in Colombo region sites

Rishan Dunusinghe Education Details

Frequently Asked Questions about Rishan Dunusinghe

What company does Rishan Dunusinghe work for?

Rishan Dunusinghe works for Department For Infrastructure And Transport

What is Rishan Dunusinghe's role at the current company?

Rishan Dunusinghe's current role is System Support Officer.

What is Rishan Dunusinghe's email address?

Rishan Dunusinghe's email address is ri****@****hoo.com

What schools did Rishan Dunusinghe attend?

Rishan Dunusinghe attended University Of Peradeniya.

Who are Rishan Dunusinghe's colleagues?

Rishan Dunusinghe's colleagues are Camillo Sergi, Gaurav Seth, Patrick Mccarthy, Michael Scerri, Alvin (Wenjin) Liang, Steven Craig, Robbie Miller.

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