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👋 Hello, I'm

Sulakshana Karunarathne

Computer Science Graduate · DevOps, Cloud & Security

I build cloud infrastructure with Terraform and AWS, ship it through CI/CD pipelines, and bake security into every stage, from IAM policy to container image. Six months of AppSec testing at Bank of Ceylon taught me to think about security first.

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About Me

Who I Am

CS graduate who builds, ships, and secures cloud infrastructure.

Sulakshana Karunarathne

Sulakshana Karunarathne

I'm a Computer Science graduate from the University of Colombo School of Computing, based in Colombo, Sri Lanka. I spent six months in the Information Security Division at Bank of Ceylon testing web and mobile apps before release, and that shapes how I build infrastructure: security is part of the pipeline, not a step after it.

My projects cover the whole delivery path: Terraform-provisioned AWS environments, GitHub Actions pipelines with Trivy scanning, Prometheus/Grafana/Loki observability, Kubernetes manifests, and a Policy-as-Code gate that blocks over-permissive IAM before it ships.

7+
Projects
6 mo
InfoSec @ BOC
100%
IaC, no console clicks
Journey

Experience & Education

My professional and academic background in technology.

Work Experience

Freelance Web Developer

Jul 2026 – Present

Self-employed

  • Ninnadaya'26 Portal: Build, deploy and support the live media competition portal on Next.js, Supabase and Vercel, handling releases, bug fixes and user access (live site).
  • Release management: Git-based deployments, environment variables and production configuration across development and production environments.

Information Security Analyst Intern

Dec 2025 – Jun 2026

Bank of Ceylon · Information Security Division

  • Web & Mobile AppSec: Security assessments of web and mobile applications, including dynamic testing in UAT environments ahead of releases (Burp Suite, MobSF, JADX).
  • Vulnerability Management: Ran vulnerability assessments with Nessus and worked with development teams on root causes and fixes.

Education

B.Sc. in Computer Science

2023 – 2026

University of Colombo School of Computing (UCSC)

Activities

2024 – 2025
  • Rowing: National Silver and Indoor Rowing Bronze (2025); Inter-University champions (2024).
  • AIESEC: Information & Digital Experience Specialist; iGV Manager (2024).
Expertise

Skills & Technologies

Tools and platforms I use to build, deploy, and secure infrastructure.

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Cloud (AWS)

EC2VPCIAMS3CloudWatchLambdaAthenaGlue

Used in , ,

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IaC, CI/CD & Containers

TerraformGitHub ActionsDockerDocker ComposeKubernetesKustomizeMinikubeGit

Used in , ,

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Monitoring & Logging

PrometheusGrafanaLokiPromtailcAdvisorCloudWatchWazuh

Used in ,

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Pipeline Security

TrivySemgrepBanditPolicy-as-CodeIAM least privilegeContainer hardening

Used in , ,

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Application Security

Burp SuiteMobSFJADXNessusOWASP Top 10OWASP LLM Top 10

Used at Bank of Ceylon and in , ,

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Linux, Web & Networking

Linux adminBashPythonNginxSSL/TLSDNSTCP/IPHTTP/HTTPS
Portfolio

Featured Projects

Real-world infrastructure, security, and automation projects.

Write-ups

Notes from the Build

What I found, what broke, and how I fixed it.

Get in Touch

Let's Connect

Have a project, opportunity, or question? I'd love to hear from you.

Let's build something amazing together.

I'm currently open to new opportunities in DevOps, Cloud Engineering, and Security roles. Whether you're looking for a team member or just want to connect — feel free to reach out!

sula2001karunarathne@gmail.com
Sri Lanka 🇱🇰
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