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Hello! I'm Prasad Jayarathne, a Cloud and DevOps specialist with over 9 years of experience delivering secure, scalable infrastructure on Azure and AWS. I excel at vulnerability management, container security, AKS operations, and building robust CI/CD pipelines with GitHub Actions, Azure DevOps, and GitLab. I enjoy automating infrastructure with Python and Bash, configuring OS security, managing certificates, and monitoring systems with Grafana and Prometheus. I thrive in cross-functional teams, driving security-first approaches and reliable deployments across cloud platforms.…Hello! I'm Prasad Jayarathne, a Cloud and DevOps specialist with over 9 years of experience delivering secure, scalable infrastructure on Azure and AWS. I excel at vulnerability management, container security, AKS operations, and building robust CI/CD pipelines with GitHub Actions, Azure DevOps, and GitLab. I enjoy automating infrastructure with Python and Bash, configuring OS security, managing certificates, and monitoring systems with Grafana and Prometheus. I thrive in cross-functional teams, driving security-first approaches and reliable deployments across cloud platforms.

Prasad Jayarathne

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Hello! I'm Prasad Jayarathne, a Cloud and DevOps specialist with over 9 years of experience delivering secure, scalable infrastructure on Azure and AWS. I excel at vulnerability management, container security, AKS operations, and building robust CI/CD pipelines with GitHub Actions, Azure DevOps, and GitLab. I enjoy automating infrastructure with Python and Bash, configuring OS security, managing certificates, and monitoring systems with Grafana and Prometheus. I thrive in cross-functional teams, driving security-first approaches and reliable deployments across cloud platforms.…Hello! I'm Prasad Jayarathne, a Cloud and DevOps specialist with over 9 years of experience delivering secure, scalable infrastructure on Azure and AWS. I excel at vulnerability management, container security, AKS operations, and building robust CI/CD pipelines with GitHub Actions, Azure DevOps, and GitLab. I enjoy automating infrastructure with Python and Bash, configuring OS security, managing certificates, and monitoring systems with Grafana and Prometheus. I thrive in cross-functional teams, driving security-first approaches and reliable deployments across cloud platforms.

Available to hire

Hello! I’m Prasad Jayarathne, a Cloud and DevOps specialist with over 9 years of experience delivering secure, scalable infrastructure on Azure and AWS. I excel at vulnerability management, container security, AKS operations, and building robust CI/CD pipelines with GitHub Actions, Azure DevOps, and GitLab.

I enjoy automating infrastructure with Python and Bash, configuring OS security, managing certificates, and monitoring systems with Grafana and Prometheus. I thrive in cross-functional teams, driving security-first approaches and reliable deployments across cloud platforms.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Cloud/Infrastructure Engineer at BlackRock (ITC Infotech – Payroll)

August 1, 2022 - Present

Designed and automated infrastructure on Azure and AWS using Terraform and Ansible. Implemented security automation and vulnerability management workflows (DAST, container scanning). Managed CI/CD pipelines with GitHub Actions and GitLab for secure deployments. Maintained container platforms on AKS. Developed Python and Bash scripts for system provisioning and monitoring. Configured Linux OS security policies and certificates. Monitored infrastructure using Grafana and Prometheus and evaluated operational effectiveness.

Senior Systems Administrator at OCBC Singapore

December 1, 2021 - August 1, 2022

Managed Linux and Windows systems with a focus on OS security and patching. Configured high-availability clusters and implemented group policies for secure access. Provided 24/7 support and participated in root cause analysis for infrastructure issues.

Senior DevOps Engineer at London Stock Exchange Group

November 1, 2021 - December 31, 2021

Built CI/CD pipelines using Jenkins, Git, and Terraform for AWS infrastructure. Automated deployments and monitored cloud resources for performance and security.

Senior System Engineer at London Stock Exchange Group

January 1, 2017 - November 30, 2021

Supported UNIX/Linux systems and automated tasks using Bash scripting. Implemented OS patching, backup strategies, and collaborated on ITIL-based service delivery. Integrated monitoring and ticketing tools (ServiceNow, Remedy).

System Engineer at Mobitel Pvt Ltd, Sri Lanka

February 1, 2016 - January 31, 2017

Managed enterprise storage, SAN switches, and OpenStack cloud deployments. Automated system tasks and participated in ERP/CRM infrastructure projects. Provided 24x7 support and implemented LDOM configurations for virtualization.