Chanaka Rathnayaka

Chanaka Rathnayaka

Security Leader. Cloud Architect. Builder.

Years building security
that lets teams ship faster

Chanaka Rathnayaka, Associate Director of Security. From hands-on SRE to security leadership, I build programs across cloud infrastructure, compliance, and AI risk.

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Writing

Building an AI Knowledge Base Assistant for Google Chat

Building an AI Knowledge Base Assistant for Google Chat

Learn how we built a permission-aware AI KB Assistant for Google Chat using Gemini 2.0 Flash, Vertex AI RAG, and Cloud Run. Full architecture walkthrough.

Mar 2026
How to Create a Privacy Policy for Your Website

How to Create a Privacy Policy for Your Website

Simple guide to creating a GDPR and CCPA compliant Privacy Policy for your blog or website. Learn what to include, why it's required, and how to stay legal.

Nov 2025
The Hidden Cost: Why Ignoring Your Website’s Cookies Can Lead to Massive Fines

The Hidden Cost: Why Ignoring Your Website’s Cookies Can Lead to Massive Fines

The Hidden Cost: Why Ignoring Your Website’s Cookies Can Lead to Massive Fines Let’s be honest, if you run a website you have a huge to do list. Creating content, getting traffic, marketing, SEO .

Nov 2025
Your Must-Have Linux Security Superpower: Mastering auditd

Your Must-Have Linux Security Superpower: Mastering auditd

Your Must-Have Linux Security Superpower: Mastering auditd We were undergoing a security audit, and one of the critical checks was proving “who changed what and when” on our core server ….

Oct 2025
Harden Your RHEL Servers auditd Rules: A Practical Guide for SREs and Security Engineers

Harden Your RHEL Servers auditd Rules: A Practical Guide for SREs and Security Engineers

A practical guide to implementing auditd rules for hardening RHEL 8 servers in production environments.

Oct 2025
Manually generating free SSL certificates with Let’s Encrypt (certbot)

Manually generating free SSL certificates with Let’s Encrypt (certbot)

Step-by-step instructions for generating and managing free SSL certificates using Let's Encrypt and Certbot mannually.

Oct 2024
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Expertise

SRE DevOps Information Security Cloud Strategy & Operations Data Privacy Security Architecture Compliance Frameworks AI Risk & Security Cloud-Native Security Security Leadership Governance & Audit Resilience & Trust DevSecOps Incident Response Risk Management Security Automation

What Others Say

“I had the pleasure of working with Chanaka at OrangeHRM and I can honestly say he is one of the most professional and technically skilled managers I have ever worked with. What stood out most to me was how he balanced deep technical expertise with a genuine passion for mentoring his team.”

Charmin Pramodya Senior Cybersecurity Research Officer

“Chanaka consistently demonstrated exceptional technical expertise and a strong commitment to ensuring the smooth operation of our systems and product. His problem-solving skills and attention to detail were invaluable in resolving complex technical issues promptly and efficiently.”

Kavinda Senarathne Managing Director

“He excelled in analytical thinking, research and development. He worked on challenging projects that greatly helped OrangeHRM development activities, including research on PHP frameworks and Docker environment setup.”

Ridwan Shariiffdeen Principal Research Scientist, Sonar

“I had the pleasure of working with Chanaka at OrangeHRM and I can honestly say he is one of the most professional and technically skilled managers I have ever worked with. What stood out most to me was how he balanced deep technical expertise with a genuine passion for mentoring his team.”

Charmin Pramodya Senior Cybersecurity Research Officer

“Chanaka consistently demonstrated exceptional technical expertise and a strong commitment to ensuring the smooth operation of our systems and product. His problem-solving skills and attention to detail were invaluable in resolving complex technical issues promptly and efficiently.”

Kavinda Senarathne Managing Director

“He excelled in analytical thinking, research and development. He worked on challenging projects that greatly helped OrangeHRM development activities, including research on PHP frameworks and Docker environment setup.”

Ridwan Shariiffdeen Principal Research Scientist, Sonar

“He is a technical expert with remarkable critical thinking and problem solving skills, and the ability to handle even the most challenging situations with clarity and confidence. He managed work effectively and guided the team in the right direction, ensuring projects succeeded.”

Uththara Salini Cybersecurity Technical Lead

“One of the most valuable individuals I have met throughout my career. Both smart, professional and most importantly self-driven. Experienced, deadline-oriented and intelligent person.”

Don Liyanage Information Security Engineer, Iress

“I had the pleasure of working with Chanaka at OrangeHRM and I can honestly say he is one of the most professional and technically skilled managers I have ever worked with. What stood out most to me was how he balanced deep technical expertise with a genuine passion for mentoring his team.”

Charmin Pramodya Senior Cybersecurity Research Officer

“He is a technical expert with remarkable critical thinking and problem solving skills, and the ability to handle even the most challenging situations with clarity and confidence. He managed work effectively and guided the team in the right direction, ensuring projects succeeded.”

Uththara Salini Cybersecurity Technical Lead

“One of the most valuable individuals I have met throughout my career. Both smart, professional and most importantly self-driven. Experienced, deadline-oriented and intelligent person.”

Don Liyanage Information Security Engineer, Iress

“I had the pleasure of working with Chanaka at OrangeHRM and I can honestly say he is one of the most professional and technically skilled managers I have ever worked with. What stood out most to me was how he balanced deep technical expertise with a genuine passion for mentoring his team.”

Charmin Pramodya Senior Cybersecurity Research Officer

“Chanaka consistently demonstrated exceptional technical expertise and a strong commitment to ensuring the smooth operation of our systems and product. His problem-solving skills and attention to detail were invaluable in resolving complex technical issues promptly and efficiently.”

Kavinda Senarathne Managing Director

“He excelled in analytical thinking, research and development. He worked on challenging projects that greatly helped OrangeHRM development activities, including research on PHP frameworks and Docker environment setup.”

Ridwan Shariiffdeen Principal Research Scientist, Sonar

“He is a technical expert with remarkable critical thinking and problem solving skills, and the ability to handle even the most challenging situations with clarity and confidence. He managed work effectively and guided the team in the right direction, ensuring projects succeeded.”

Uththara Salini Cybersecurity Technical Lead

“Chanaka consistently demonstrated exceptional technical expertise and a strong commitment to ensuring the smooth operation of our systems and product. His problem-solving skills and attention to detail were invaluable in resolving complex technical issues promptly and efficiently.”

Kavinda Senarathne Managing Director

“He excelled in analytical thinking, research and development. He worked on challenging projects that greatly helped OrangeHRM development activities, including research on PHP frameworks and Docker environment setup.”

Ridwan Shariiffdeen Principal Research Scientist, Sonar

“He is a technical expert with remarkable critical thinking and problem solving skills, and the ability to handle even the most challenging situations with clarity and confidence. He managed work effectively and guided the team in the right direction, ensuring projects succeeded.”

Uththara Salini Cybersecurity Technical Lead

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