Working on SRE related tasks on a professional learning platform called "CrossKnowledge"

Implemented an AMI hardening pipeline for different linux OS flavours as per CIS Benchmark scan results which can be used to share harden AMIs to all Wiley AWS accounts.Migrated an older web application into a scalable architecture with automated CI/CD workflow by using Terraform, Jenkins, Ansible, Packer, EKS and shifting existing CloudFront to Cloudflare.Improved groovy shared library functionalities with CI/CD templates and used them in project repositories to reduce… Show more Implemented an AMI hardening pipeline for different linux OS flavours as per CIS Benchmark scan results which can be used to share harden AMIs to all Wiley AWS accounts.Migrated an older web application into a scalable architecture with automated CI/CD workflow by using Terraform, Jenkins, Ansible, Packer, EKS and shifting existing CloudFront to Cloudflare.Improved groovy shared library functionalities with CI/CD templates and used them in project repositories to reduce maintenance/administrative cost of CI/CD workflow.Monitored infrastructure and application integrity using Dynatrace and resolved PagerDuty alerts to ensure SLI,SLO,SLAs are on track. Show less

Provisioned and administrated production-ready multi-master Kubernetes cluster environments on VMware VSphere and integrated it with Jenkins build pipeline in order to have faster build cycle.Implemented Jenkins shared pipeline libraries using groovy in order to run Java module builds on Kubernetes.Administrated Atlassian Bitbucket, Jenkins, JFrog Artifactory, SonarQube, JFrog Xray, HashiCorp Vault, HashiCorp Consul application services and handled planned service… Show more Provisioned and administrated production-ready multi-master Kubernetes cluster environments on VMware VSphere and integrated it with Jenkins build pipeline in order to have faster build cycle.Implemented Jenkins shared pipeline libraries using groovy in order to run Java module builds on Kubernetes.Administrated Atlassian Bitbucket, Jenkins, JFrog Artifactory, SonarQube, JFrog Xray, HashiCorp Vault, HashiCorp Consul application services and handled planned service upgrades.Administrated Linux/Windows virtual environments and configured DNS, DHCP, HTTPS, Proxies.Implemented inhouse tools/scripts for application housekeeping using python and BASH.Implemented monitoring and alert systems critical hosts and application services using Prometheus, Grafana, AlertManager. Show less

Migrated a Swedish recruitment website which hosted in on-prem infrastructure into Azure subscription and implemented automated video conversion method using AWS Lambda, Transcorder services.Implemented an automated CI/CD workflow using Jenkins to deploy releases and configured infrastructure checks using Python Boto3 to reduce AWS resource consumption.

Designed and provisioned initial infrastructure setup for deploying IFS applications into Azure and configured application configurations using Chef cookbooks.

Deployed releases into customer environments using automated CI/CD workflow and troubleshooted os, middleware, application, database issues in a project called "Genie" by a major Telco provider.

Reviewed Information Security Audit requirements for major Telco providers in Sri Lanka.Created and tested network disaster recovery plans.Performed risk assessments and tested data processing systems.Reviewed firewalls, data encryption methods and other security measures.