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Hi, I'm
Buddhisha.

$ Network & Systems Engineer

Results-driven infrastructure specialist bridging traditional networking and automated DevNetOps workflows. Building secure, scalable environments with Python, Ansible, and multi-vendor toolchains across Cisco, HPE, SonicWall, Fortinet, and Aruba platforms.

Buddhisha Left
Buddhisha Center
Buddhisha Right
Network & Systems Eng. Delko Technologies
๐Ÿ“
Base of Operations Colombo District, Sri Lanka

/usr/bin/whoami

B.Tech Undergraduate in Network Technology at the University of Vocational Technology (Ratmalana), with hands-on enterprise experience at Delko Technologies (Sri Jayawardenepura Kotte). My focus is shifting towards multi-vendor network programmability โ€” transforming manual CLI operations into asynchronous, event-driven automation pipelines.

Previously served as an Internship Trainee at the University of Colombo NOC, resolving fiber optic and Layer 2/3 issues in a live campus environment. Certified across Cisco (CCNA), Microsoft Azure, and ISC2 Cybersecurity domains. Based in Kandy, Sri Lanka โ€” originally from Halloluwa, Kandy.

git log --graph --all --oneline --tags

Network & Systems Engineer

ONGOING

Delko Technologies

Apr 2026 โ€“ Present

CCNA Certification

CERTIFIED

Cisco Systems, Inc.

Mar 2026 โ€“ Active

Junior Network Engineer

PROMOTED

Delko Technologies

Dec 2025 โ€“ Apr 2026

Trainee Network Engineer

Delko Technologies

Oct 2025 โ€“ Nov 2025

Internship Trainee (NOC)

COMPLETED

University of Colombo

Feb 2025 โ€“ Aug 2025

B.Tech Network Technology

ONGOING

University of Vocational Technology

Apr 2022 โ€“ Dec 2026

bash /opt/skill_scanner.sh

ls /var/www/projects

project_01

PCIRS_Engine

Predictive Change Impact & Risk Simulation Engine

โ— Active

A multi-vendor DevNetOps dashboard built with Python, Netmiko, and Paramiko that centralizes network management, backups, and deployments into a single pane of glass. The core engine features a locally hosted LLM pipeline that preemptively validates configuration candidates for syntax accuracy, routing logic, and security vulnerabilities prior to execution. Couples AI-driven risk assessment with high-concurrency SSH interactions, proactive alerting, and automated rollbacks.

PythonNetmikoParamikoLLM PipelineSSHMulti-vendor
pcirs_engine_demo.mp4
PCIRS Demo

project_02

AegisOps-NMS

Distributed Event-Driven Network Management System

โ— In Progress

A distributed NMS built with React, Go, and Python. Leverages RabbitMQ to decouple the API gateway from execution nodes, enabling concurrent zero-downtime bulk operations across multi-vendor infrastructure. The backend features an async Python worker pool using Netmiko + PySNMP for non-blocking CLI parsing and SNMP polling. Secured by an AES-encrypted PostgreSQL credential vault with strict RBAC, streaming live telemetry via WebSockets.

ReactGoPythonRabbitMQPySNMPWebSocketsPostgreSQL
aegisops_demo.mp4
AegisOps Demo

project_03

Network Automation โ€” Bulk Config

Python scripts using Netmiko and Ansible to automate bulk configuration changes on multi-vendor switches (HPE, Cisco, Aruba, BDCom), reducing manual task time by 60%.

PythonNetmikoAnsibleYAML

project_04

Centralized Auth (RADIUS/NPS)

Configured Windows NPS (RADIUS) for secure SSH access control across legacy HPE Comware and modern Aruba OS environments, enforcing AAA policy across campus-grade infrastructure.

Windows NPSRADIUS/AAAHPE ComwareAruba OS

project_05

Log Management โ€” Graylog SIEM

Implemented a centralized Syslog server using Graylog on Ubuntu for real-time security incident detection and network performance analysis across enterprise client sites.

GraylogUbuntuSyslogSIEM

project_06

VMware ESXi / TrueNAS Infra

Built VMware ESXi server infrastructure with TrueNAS Scale providing reliable iSCSI and NFS shared storage for virtualization workloads in a homelab/enterprise environment.

VMware ESXiTrueNASiSCSINFS

find . -name "*.cert"

CISCO
CCNA Logo

[Issued: Mar 2026]

Cisco Certified Network Associate

#CCNA
ISC2
ISC2 Logo

[Issued: Sep 2024]

Certified in Cybersecurity (CC)

#CYBERSEC
ENGENIUS
ENP Logo

[ENP]

EnGenius Certified Network Prof.

#WIRELESS
NETACAD
NetAcad Logo

[Cisco NetAcad]

Introduction to Cybersecurity

#SECURITY
CISCO
CCNA Logo

[Issued: Mar 2026]

Cisco Certified Network Associate

#CCNA
ISC2
ISC2 Logo

[Issued: Sep 2024]

Certified in Cybersecurity (CC)

#CYBERSEC
ENGENIUS
ENP Logo

[ENP]

EnGenius Certified Network Prof.

#WIRELESS
NETACAD
NetAcad Logo

[Cisco NetAcad]

Introduction to Cybersecurity

#SECURITY

tail -f /var/log/sys_memories.log

grep -r "endorsements" .

"
Mr. Rajitha Wedage

Lecturer (Prob.), Dept. of Network Technology

University of Vocational Technology

Academic reference for B.Tech in Network Technology.

"
Mr. Rusiru Dalpathadu

Assistant Network Manager, NOC

University of Colombo

Professional reference for NOC infrastructure internship.

./establish_connection.sh

Currently open to discussing DevNetOps architecture, automation frameworks, multi-vendor network projects, or potential career opportunities. Let's build something reliable.

email

[email protected]

phone

+94 701 986 009

location

Colombo District, Sri Lanka