DevOps Intern @ FEXCON

Sadev Sabuddhika

DevOps Engineering Intern at FEXCON. Automating cloud delivery pipelines, managing containerized applications, and optimizing infrastructure operations. BICT (Hons) undergraduate at the University of Kelaniya.

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sadev@sys:~$whoami

I'm a BICT (Hons) undergraduate at the University of Kelaniya, specializing in Computer Networks and building toward a career in Cloud & DevOps engineering. My focus is designing cost-efficient, serverless-first architectures on Microsoft Azure that scale to zero when idle and hold up under real production load.

I enjoy the space where infrastructure, security, and code meet — wiring CI/CD pipelines through GitHub Actions, containerizing services with Docker, and instrumenting systems with Grafana and Prometheus. On the backend I lean on Python, Django, and both SQL and NoSQL data stores.

Currently working as a DevOps Engineering Intern at FEXCON, expanding my hands-on cloud expertise across AWS & Azure, and shipping production infrastructure alongside an engineering team.

Location

Homagama, LK

Focus

Cloud / DevOps

Status

DevOps Intern @ FEXCON

sadev@sys:~$catexperience.txt

DevOps Engineering Intern@FEXCON

Homagama, Sri Lanka (Hybrid)

Oct 2026 – Present

Managing and optimizing cloud infrastructure across AWS & Azure. Automating delivery pipelines (CI/CD), containerizing services, and supporting enterprise system reliability.

sadev@sys:~$cattech_stack.yml

01 // Cloud & Infrastructure

Microsoft AzureDocker ContainersAzure Static Web AppsAzure FunctionsAzure Cosmos DB

02 // DevOps & Observability

GitHub Actions CI/CDPrometheusGrafanaGit & GitHub

03 // Backend & Systems

Python ProgrammingDjangoPostgreSQLMySQLSupabase

04 // Networking & Tools

Cisco Packet TracerWiresharkMQTTDomain RoutingJIRA / Azure BoardsFigma

// And plenty more technologies I'm exploring & mastering every day.

sadev@sys:~$ls -laselected_deployments/

7 Systems

DevOps · ObservabilityInfrastructure Engineer / Administrator

Infrastructure Monitoring & Alerting Stack

PrometheusGrafanaAlertmanagerDocker ComposeNode ExporterTelegram Bot API

→Designed a production-grade, containerized observability pipeline to track real-time system metrics across multi-platform hosts.
→Built a low-latency incident alerting flow via Telegram Bot API utilizing custom-formatted HTML push notification templates (sub-45-second latency).
→Unified host diagnostics (CPU, memory, disk, network) into active Grafana telemetry dashboards for centralized visualization.
→Configured Alertmanager routing, grouping rules, and rate-limited dispatch intervals to prevent notification fatigue.

// GitHub

Azure · ServerlessCloud & Backend Developer

Serverless Portfolio Platform & Integration Engine

Azure Static Web AppsAzure Functions (Python)Cosmos DBGitHub ActionsCommunication ServicesPythonGit

→Engineered a two-tier serverless portfolio platform with Azure SWA for static asset delivery and Python Azure Functions for microservices APIs.
→Designed an active visitor counter that reads/writes transactional metrics to a NoSQL Azure Cosmos DB database.
→Implemented a custom proxy-header rate limiter (sliding window) to secure API endpoints against flooding.
→Built automated contact message dispatching through Azure Communication Services integrating SMTP relay.
→Created a GitHub Actions CI/CD workflow to automate build validation and deployment to Azure Static Web Apps on code push.

// GitHub

Django · Docker · AIBackend & Infrastructure Developer

Parithyaga — Donation Coordination Platform

Next.jsDjangoPostgreSQLPythonGoogle Gemini AIDocker

→Volunteering as a backend developer for RIKILI (Non-Profit Organization) to engineer this secure resource allocation platform.
→Designed role-based access control inside Django rest framework to protect sensitive donor and organizational records.
→Integrated Google Gemini API to parse need descriptions from uploaded PDF documents, reducing manual cataloging overhead.
→Containerized application layers with Docker Compose to achieve parity across development and testing environments.

// GitHub

Azure · AI / LLMCloud & AI Infrastructure Engineer

Azure Dify AI Assistant Platform

Azure VMAzure NSGDocker ComposeDify EngineGoogle Gemini APIUbuntu Linux

→Provisioned an Ubuntu 22.04 LTS Azure Virtual Machine with custom Network Security Groups (NSG), 4GB tuned swap space to prevent OOM errors, and an assigned Azure DNS domain label.
→Orchestrated the multi-container Dify LLM orchestration engine using Docker Compose V2 with persistent volume storage and environment key injection.
→Integrated Google Gemini API and vector embedding models for low-latency AI response generation.
→Designed a 4-node Chatflow architecture (User Input → Knowledge Retrieval → LLM → Answer) with custom system prompt guardrails for automated incident diagnosis.

// LinkedIn Showcase

Next.js · MongoDBFull Stack Developer

Mobile Shop POS

Next.jsMongoDBNode.jsPrisma

→Developed a multi-user inventory management and Point of Sale (POS) system for mobile repair centers.
→Designed schema structures with Prisma ORM to track device lifecycle stages (received, in-repair, collected).
→Implemented role-based permissions for cashier, technician, and store administrator accounts.
→Optimized inventory query latency utilizing MongoDB indexing and search aggregates.

// Website

PHP · MySQLCollaborative Developer

Flavor POS — Restaurant Management

PHPHTMLCSSJavaScriptMySQL

→Co-created a role-based order management system connecting restaurant tables, kitchen staff, cashiers, and admins.
→Built responsive management dashboards using vanilla JavaScript and CSS grid/flexbox layouts.
→Established relational database schemas in MySQL to handle live menu items, billing transactions, and order logs.
→Enforced secure session management and role validation on backend endpoints.

// GitHub // Live Demo

IoT · MQTT · ESP32Embedded Systems & Integration Developer

Building Energy Optimization & Automation

IoTReactFastAPIMQTTESP32

→Engineered an IoT energy management prototype featuring ESP32 sensors and switch control units (SCUs) to automate appliances.
→Configured a local MQTT message broker to relay telemetry between hardware edge units and a centralized server over Wi-Fi.
→Developed a React web control panel displaying live power consumption and trigger switches via WebSockets.
→Built FastAPI backend routers to handle historical energy telemetry logs and log database snapshots.

// GitHub // Docs

sadev@sys:~$cateducation.txt

Sep 2023 — Present

Bachelor of Information and Communication Technology (Honours)

Specialization: Computer Networks

Faculty of Computing & Technology, University of Kelaniya, Sri Lanka

sadev@sys:~$openssl x509 -text -incerts.pem

Microsoft Certified: Azure Fundamentals (AZ-900)In Progress

Cisco Networking Academy — Linux EssentialsVerified Cisco Networking Academy — IT EssentialsVerified Docker Training Course for the Absolute Beginner — KodeKloudVerified

GET IN TOUCH

Let's talkcloud.

DevOps Engineering Intern at FEXCON. Passionate about combining cloud infrastructure (AWS & Azure), automation, and networking to deploy high-performance systems. Based in Homagama, Sri Lanka.

GITHUBgithub.com/Sadev2003

LINKEDINlinkedin.com/in/sadevsabuddhika

EMAILsadevsabuddhika89@gmail.com

Sadev Sabuddhika

sadev@sys:~$whoami

sadev@sys:~$catexperience.txt

sadev@sys:~$cattech_stack.yml

sadev@sys:~$ls -laselected_deployments/

Infrastructure Monitoring & Alerting Stack

Serverless Portfolio Platform & Integration Engine

Parithyaga — Donation Coordination Platform

Azure Dify AI Assistant Platform

Mobile Shop POS

Flavor POS — Restaurant Management

Building Energy Optimization & Automation

sadev@sys:~$cateducation.txt

Bachelor of Information and Communication Technology (Honours)

sadev@sys:~$openssl x509 -text -incerts.pem

sadev@sys:~$az account show --query"[tenantId, user.name]"

Let's talkcloud.