Dimuth Karunarathna

SCADA /Network Engineer

Talent

Derby, DerbyMember since June 11, 2025

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About

Results-driven SCADA Administrator / Network Engineer with over 13 years of experience in SCADA control systems, network administration, and automation. Expertise in IT infrastructure, Network Infrastructure, substation automation, cyber security, and SCADA integration. Strong background in Windows, Solaris, Siemens Spectrum 4.5, and network security. Proven ability to optimize system uptime (99%) and improve operational efficiency (40%). Seeking to apply expertise in SCADA & networking roles in the UK.

Experience

SCADA Administrator

Ceylon Electricity Board | 2011 – 2023

Managed and optimized SCADA integration and automation systems for high-voltage (HV) and low-voltage (LV) electricity distribution.

Managed and optimized SCADA integration and automation systems for high-voltage (HV) and low-voltage (LV) electricity distribution networks, ensuring efficient and reliable control of power systems by 50%.

SCADA network infrastructure upgrades, achieving 99% system uptime.

Led SCADA network infrastructure upgrades, achieving a 99% system uptime, demonstrating a commitment to maximizing system reliability and minimizing disruptions.

Installed and maintained Windows & Solaris-based SCADA servers and substation automation solutions.

Installed and maintained Windows and Solaris-based SCADA servers and substation automation solutions, ensuring the robust operation of critical control systems 25%.

Enhanced network security by implementing firewalls, VPNs, and cybersecurity protocols.

Enhanced network security by implementing firewalls, virtual private networks (VPNs), and cybersecurity protocols, protecting critical infrastructure from potential threats by 15%.

Provided technical support for control system audits and IT infrastructure maintenance.

Provided technical support for control system audits and IT infrastructure maintenance, ensuring compliance and the smooth operation of systems by 10%.

Conducted routine testing, reducing system downtime by 10%.

Conducted routine system testing, resulting in a 10% reduction in system downtime.

Analyzed SCADA data with Power BI & SAS, improving operational efficiency by 40%.

Analyzed SCADA data using Power BI and SAS, leading to a 40% improvement in operational efficiency through data-driven insights.

Network Administrator

SADANA Higher Education Institute | 2010 – 2011

Designed and maintained LAN/WAN and wireless network infrastructures.

Directed the design, implementation, and continuous maintenance of the local area network (LAN), wide area network (WAN), and wireless network infrastructures to ensure robust connectivity and optimal performance for all users by 30%. This included capacity planning and documentation.

Installed and configured network devices (IPv4, IPv6, routers, switches, firewalls).

Expertly installed, configured, and maintained essential network hardware, including routers for efficient traffic routing, switches for seamless inter-device communication, and firewalls to enforce security policies and protect against unauthorized access by 25%.

IT support and troubleshooting, resolving technical issues for end-users.

Provided comprehensive IT support to end-users, diagnosing and resolving a wide array of technical issues encompassing hardware, software, and network connectivity. This ensured minimal disruption to daily operations and fostered a productive technology environment by 35%.

Conducted network security enhancements, reducing security risks.

Proactively implemented and maintained network security protocols and configurations, significantly reducing potential security risks and safeguarding sensitive organizational data by 10%.

Projects & Key Achievements

Colombo City Electricity Distribution and Development SCADA Project (CCEDDP)

Played a key role in a project focused on modernizing power distribution in Colombo City through the implementation of cutting-edge SCADA technology. My responsibilities included providing client-side technical support, collaborating with SIEMENS India Ltd., and troubleshooting SCADA network operations and Oracle server configurations. This work involved utilizing cloud platforms (Azure/OCI) to optimize system performance.

SCADA Network Upgrade: Improved system efficiency and security by redesigning SCADA infrastructure.
Cloud Migration: Led transition of critical SCADA data to cloud platforms (Azure), reducing IT costs.
Cybersecurity Enhancement: Implemented IEC 62443-compliant security protocols, reducing cyber threats.
Network Optimization: Reduced downtime by 20% through proactive monitoring & maintenance strategies.