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chalithah/README.md

    Hi. I'm Chalitha Handapangoda.
github contribution grid snake animation

    Cloud Infrastructure Engineer | AWS Solutions Architect | Security-Focused DevOps

3+ years designing, deploying, and managing enterprise cloud infrastructure across AWS and Azure in HIPAA-regulated healthcare environments.

Expertise in infrastructure-as-code, multi-cloud architecture, high-availability systems, production incident response, and compliance automation.

Passionate about building secure, scalable, and resilient cloud infrastructure. Currently pursuing MS Cybersecurity at NYU with specialization in cloud security and incident detection.

Core Competencies

Area Focus
Cloud Architecture AWS (EC2, ECS, RDS, VPC, Lambda, CloudFormation, WAF, GuardDuty, CloudTrail), Azure (Virtual Desktop, Virtual Machines, Virtual Networks), Multi-AZ high availability, load balancing, auto-scaling, disaster recovery
Infrastructure as Code CloudFormation, infrastructure automation, CI/CD pipelines (AWS CodePipeline), configuration management, declarative infrastructure design
Production Operations Infrastructure monitoring, alert investigation, root cause analysis, incident response workflows, SLA-driven remediation, infrastructure optimization
Security & Compliance HIPAA/NIST 800-53 controls, AWS WAF, GuardDuty forensics, CloudTrail auditing, CrowdStrike Falcon EDR, endpoint detection, compliance automation
Infrastructure Automation PowerShell scripting, Python automation, patch management, infrastructure lifecycle management, workflow optimization

Featured Projects

AWS Two-Tier Todo Application | Enterprise Cloud Architecture

Production-ready scalable web application demonstrating advanced cloud infrastructure: multi-AZ high availability, load balancing, auto-scaling policies, security best practices, and enterprise infrastructure design patterns.

Technologies: AWS EC2, ECS, RDS, VPC, Load Balancing, Auto Scaling, CloudFormation, IAM, Security Groups

Repository: github.com/chalithah/aws-two-tier-todo-app

AWS Enterprise CI/CD Pipeline | 2048 Game Application

Fully automated CI/CD pipeline showcasing advanced AWS DevOps practices including zero-downtime deployments, containerization, infrastructure automation, and enterprise-grade deployment orchestration.

Technologies: AWS CodePipeline, ECR, ECS, CodeBuild, CloudFormation, Infrastructure-as-Code, Docker

Repository: github.com/chalithah/2048-game-ci-cd

Securing REDCap on AWS | AWS WAF & DDoS Protection

Comprehensive cloud security implementation for production REDCap application. Responded to real-world DDoS attack using AWS WAF and Fortinet Managed Rules, protected against OWASP Top 10 vulnerabilities, and enforced HIPAA compliance. Demonstrates production incident response, root cause analysis, and security hardening methodology.

Technologies: AWS WAF, Fortinet Managed Rules, GuardDuty, CloudTrail, AWS Config, HIPAA/NIST 800-53

Repository: github.com/chalithah/Securing-REDCap-OWASP-AWS-WAF

Real-Time Stock Market Analytics Pipeline | AWS Serverless Architecture

Production-ready serverless data analytics pipeline with automated trend detection, historical analytics, and intelligent alerting. Demonstrates advanced serverless design patterns, event-driven architecture, and production-scale data processing on AWS.

Technologies: AWS Lambda, SNS, SQS, EventBridge, DynamoDB, S3, CloudWatch

Repository: github.com/chalithah/realtime-stock-analytics-aws-pipeline

Cloud & Infrastructure Tools

Security & Compliance Tools

Scripting & Automation

System Administration & Infrastructure

Certifications

Education

Master of Science in Cybersecurity (2025-2027, Part-Time)
New York University - Tandon School of Engineering

Bachelor of Science in Cybersecurity
University of Gloucestershire, United Kingdom

Bachelor of Engineering in Mechanical Engineering
University of Sunderland, United Kingdom

Cloud Infrastructure | DevOps | AWS | Azure | Infrastructure as Code | Security
LinkedIn | Email | Chicago, IL

Pinned Loading

  1. Securing-REDCap-OWASP-AWS-WAF Securing-REDCap-OWASP-AWS-WAF Public

    This repository documents the implementation of robust security measures for securing a REDCap web application deployed on AWS. Specifically, it covers how to mitigate Distributed Denial of Service…

    1

  2. T-Pot-Honeypot-Cloud-Deployment T-Pot-Honeypot-Cloud-Deployment Public

    Real-world cyberattack monitoring using T-Pot honeypot on Vultr cloud with Elastic Stack, firewall configuration, and DevSecOps best practices.

    Shell 2

  3. globalmart-catalog globalmart-catalog Public

    Recreate GlobalMart's CI/CD pipeline with the same issues their team faced, then troubleshoot using CloudWatch, CodePipeline logs, and the AWS Console.

    JavaScript

  4. 2048-game-ci-cd 2048-game-ci-cd Public

    CI/CD pipeline setup for 2048 game

    JavaScript 1 1

  5. aws-two-tier-todo-app aws-two-tier-todo-app Public

    A production-ready, highly available two-tier web application deployed on AWS. This project utilizes Amazon EC2, Amazon RDS, and an Application Load Balancer (ALB) to create a scalable and resilie…

    Shell 1

  6. realtime-stock-analytics-aws-pipeline realtime-stock-analytics-aws-pipeline Public

    Real-Time Stock Market Data Pipeline | AWS Kinesis • Lambda • DynamoDB • S3 • Athena

    Python 2 2