Rajitha Rajaguru
Kandy
Summary
Dynamic Senior Assistant Engineer at Sri Lanka Telecom PLC, specializing in SD-WAN provisioning and network security, demonstrating proven expertise in Azure networking and VPN setup alongside exceptional communication skills.
Overview
14
14
years of professional experience
Work History
Senior Assistant Engineer
Sri Lanka Telecom PLC
01.2024 - Current
- Facilitated SD-WAN network provisioning and service assurance to enhance operational efficiency.
- Delivered comprehensive on-premises SD-WAN services integrated with cloud-based security solutions.
- Implemented agile controller-based solutions addressing WAN performance and security needs.
- Designed and deployed Azure virtual network infrastructures, ensuring optimal connectivity for cloud applications.
- Managed Fortinet-based SD-WAN solutions, including FortiGate firewall configuration and VPN setup.
- Led initiatives to strengthen network security posture using FortiAnalyzer and FortiManager tools.
- Supported hybrid environments, integrating on-premises and Azure infrastructures for high availability.
- Enhanced security controls across systems to maintain compliance and analytics.
Assistant Engineer
Sri Lanka Telecom PLC
07.2019 - 01.2024
- Resolved complex network, firewall, and cloud infrastructure issues for enterprise clients through Tier 2/3 support.
- Diagnosed technical problems with Fortinet firewalls, Azure networking, VPN tunnels, and routing configurations.
- Collaborated with infrastructure, security, and cloud architects to ensure timely resolution of issues.
- Conducted root cause analysis to identify recurring issues and implemented long-term preventive solutions.
- Delivered client-centric solutions while adhering to service level agreements (SLAs) and maintaining high availability.
Telecommunication Technical officer
Sri Lanka Telecom PLC
09.2015 - 07.2019
Monitored channel availability across Satellite IRDs, Encoders, Multicast Switches, and Storage Servers to ensure uninterrupted IPTV services.
- Generated reports on server utilization and multicast traffic to support service optimization and capacity planning.
- Performed network and system administration tasks including traffic monitoring and preventive maintenance.
- Configured Layer 2 and Layer 3 VPN services for enterprise customers over MPLS infrastructure.
- Maintained multi-VLAN environments with inter-VLAN routing using dynamic protocols (BGP, OSPF, EIGRP).
- Provisioned IPTV services over MPLS for business clients while ensuring reliability.
- Configured cloud service access networks to ensure seamless integration with enterprise infrastructure.
Technical Officer
HUTCHISON TELECOMMUNICATIONS LANKA (PRIVATE) LIMITED
09.2012 - 09.2015
- Executed real-time network surveillance across Access, Transmission, and Core Network elements, escalating faults and alarms within SLA guidelines.
- Delivered Tier 1/2 troubleshooting support for 2G, 3G (UMTS), and 4G LTE networks in collaboration with field teams and back-office engineers.
- Participated in site commissioning and network testing, validating functionality of newly deployed sites and equipment.
- Provided 24x7 support by monitoring alarms, tracking outages, and escalating service-impacting issues to relevant teams.
- Coordinated resolution of leased circuit failures by collaborating with third-party providers to minimize downtime.
- Developed and maintained daily exception reports to enhance operational visibility for cross-functional teams.
- Supported Complaint Management Unit by conducting first-level investigations and offering technical insights on network-related user issues.
- Managed vendor communications while facilitating project execution tasks related to SD-WAN, IP/MPLS, LAN/WAN, Microwave Links, and Telecommunications Towers.
Technical Officer
GTL International Lanka
08.2011 - 07.2012
Telecommunication Technical Officer
FDK Lanka (PVT) LTD
05.2011 - 08.2011
Education
Bachelor of Science with Honor's - Computer Networks
University of Wolverhampton
United Kingdom01.2022
Higher National Diploma -
Electrical Engineering
07.2011
G.C.E (Advance Level Examination) -
12.2007
G.C.E (Ordinary Level Examination) -
12.2002
Skills
- Cloud computing and security
- Data networks and firewalls
- Local area network (LAN) and wide area network (WAN)
- Mobile networking
- Attention to detail
- Communication skills
- SD-WAN provisioning
- Network security and configuration
- VPN setup
- Azure networking
- Cloud integration
- Network troubleshooting
- Quality assurance testing
Languages
English
Personal Information
Nationality: Sri Lankan
Languages
French
First Language
English
Proficient (C2)
C2
Timeline
Senior Assistant Engineer
Sri Lanka Telecom PLC
01.2024 - Current
Assistant Engineer
Sri Lanka Telecom PLC
07.2019 - 01.2024
Telecommunication Technical officer
Sri Lanka Telecom PLC
09.2015 - 07.2019
Technical Officer
HUTCHISON TELECOMMUNICATIONS LANKA (PRIVATE) LIMITED
09.2012 - 09.2015
Technical Officer
GTL International Lanka
08.2011 - 07.2012
Telecommunication Technical Officer
FDK Lanka (PVT) LTD
05.2011 - 08.2011
Bachelor of Science with Honor's - Computer Networks
University of Wolverhampton
Higher National Diploma -
Electrical Engineering
G.C.E (Advance Level Examination) -
G.C.E (Ordinary Level Examination) -
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