Rajitha Karunarathne
Cloud Consultant
Colombo
Summary
As a seasoned Cloud Certified IT Professional with more than 14 years of expertise in cloud computing, DevOps, CI/CD, infrastructure automation, microservices, programming and quality engineering, I've successfully delivered cutting-edge solutions across diverse sectors, including healthcare, food services, and hospitality. My proficiency spans various cloud platforms, such as AWS, Azure, and GCP, utilizing both cloud native and open source tools like Cloud Custodian and Terraform. Holding certifications like AWS Certified Solutions Architect, SMC, and ITIL, FinOps I am dedicated to harnessing cloud technologies to drive innovation, efficiency, and scalability for businesses. My mission is clear: to provide businesses with reliable, secure, and cost-effective cloud solutions that not only meet but exceed the needs and expectations of our clients and stakeholders. Passionate about the transformative power of cloud technologies, I am committed to enabling success through strategic and forward-thinking approaches.
Overview
16
16
years of professional experience
4
4
Certifications
Work History
Senior Technical Lead (Cloud Services)
Sysco LABS Sri Lanka
2019.07 - Current
- Company Overview: Currently serving as a Technical Lead (Cloud Services) at Sysco LABS (Pvt) Ltd, the innovation arm of Sysco Corporation (NYSE:SYY - a Fortune 100 Company).
- Accountable for overseeing the administration, configuration, maintenance, and governance, as well as troubleshooting issues related to the AWS, Azure, and GCP multiple Cloud Platforms within the organization.
- Possess a proficient hand on experience of utilizing various Cloud native tools and open-source solutions, including Cloud Custodian, to manage compliance and standards in a Multi Cloud Platform.
- Well-versed in setting up, configuring, and automating Cloud infrastructure for multiple projects using both Cloud native tools and external tools such as Terraform.
- Demonstrate expertise in configuring numerous AWS services, such as VPC, EC2, S3, Lambda, Route 53, ECS, CloudFront, RDS, IAM, ALB, CloudWatch, CloudTrail, Code Build, AWS Organizations, and similar services in other Cloud platforms like GCP and Azure.
- Skilled in release build and deployment, as well as CI/CD configuration, utilizing tools such as Jenkins, Sonar, and Github across various projects.
- Provide support and guidance to teams, ensuring adherence to Cloud Best Practices and Standards in alignment with organizational Compliance and Governance standards when designing and architecting solutions.
- Proficient in developing scripts for automation tasks using languages like Python, PowerShell, and Bash scripts when required.
Associate Systems Lead
Fortude
2017.01 - 2019.07
- Company Overview: Served as an Associate Systems Lead at Fortude (Pvt) Ltd, overseeing the installation, deployment, and configuration of multiple projects for United States clients. Worked extensively with various healthcare clients, ensuring compliance with regulations such as HIPAA.
- Managed the administration, configuration, maintenance, and troubleshooting of AWS and Azure cloud environments for multiple projects.
- Proficient in configuring numerous AWS services, including VPC, EC2, S3, Lambda, Route 53, ECS, CloudFront, RDS, IAM, ALB, CloudWatch, and CloudTrail. Similar expertise extends to the Azure cloud platform.
- Demonstrated expertise in setting up, configuring, and automating AWS infrastructure for multiple projects.
- Skilled in release build and deployment, as well as CI/CD configuration, using tools like Jenkins, Sonar, and Azure DevOps across various projects.
- Managed the configuration and maintenance of VMware vCenter and vSphere, overseeing server provisioning for complex solutions.
- Proficient in working with application servers such as Tomcat and Windows IIS, including web application setup and Load Balancer configuration.
- Developed scripts for various automation tasks using Bash scripts when needed.
- Implemented Nagios as a monitoring solution for multiple projects.
Senior Systems Engineer
Brandix i3
2014.08 - 2017.01
- Company Overview: Functioned as a Senior Systems Engineer at Brandix i3 (Pvt) Ltd, specializing in the installation, deployment, and configuration of multiple projects for clients in the United States. Engaged extensively with healthcare clients, ensuring adherence to compliance standards such as HIPAA.
- Oversaw the administration, configuration, maintenance, and troubleshooting of AWS and Azure Cloud environments for multiple projects.
- Possessed a solid understanding of configuring various AWS services, including VPC, EC2, S3, Lambda, Route 53, ECS, CloudFront, RDS, IAM, ALB, CloudWatch, and CloudTrail. Similar expertise extended to services on the Azure cloud platform.
- Demonstrated proficiency in setting up, configuring, and automating AWS infrastructure for multiple projects.
- Showcased expertise in release build and deployment, as well as CI/CD configuration, utilizing tools like Jenkins, Sonar, and Azure DevOps across multiple projects.
- Managed the configuration and maintenance of VMware vCenter and vSphere, overseeing server provisioning for complex solutions.
- Possessed in-depth knowledge of application servers, including Tomcat and Windows IIS, encompassing web application setup and Load Balancer configuration.
- Implemented Nagios as a monitoring solution for multiple projects.
System Support Engineer
Zaizi
2014.04 - 2014.08
- Company Overview: Held the position of System Support Engineer at Zaizi (Pvt) Ltd, offering around-the-clock support on a roaster basis for clients in the UK.
- Conducted configuration and maintenance of Alfresco Servers, as well as MySQL/Linux systems, catering to clients in the UK and France.
- Demonstrated proficiency in configuring clustering, Apache load balancer, Nginx, Apache Tomcat, Apache Solr, and Nagios.
- Possessed a strong working knowledge of the setup and troubleshooting of the Alfresco Enterprise Edition.
Engineer Technology Services
Virtusa
2012.11 - 2014.05
- Company Overview: Offered round-the-clock on-call support for the Sri Lanka Government's web portal.
- Conducted configuration, monitoring, and deployment of the Liferay Server, including Portlet building using Apache Ant.
- Configured Apache load balancer, HA proxy, and Nagios for monitoring, along with MySQL replication configuration.
- Demonstrated proficiency in configuring WSO2 ESB and Governance Registry.
- Possessed a strong working knowledge of Linux operating systems, including Ubuntu, Fedora, and CentOS.
Engineer QA
Virtusa
2011.07 - 2012.11
- Company Overview: Served as a QA Engineer at Virtusa, actively engaged in an outsourced project for Millennium Information Technologies at the client site. Played a key role in designing test cases, executing them manually and through automation, and reporting issues and results. Possessed solid knowledge of capital market functionality.
IT-Executive (Software development)
Bio Food Private Ltd.
2009.08 - 2011.07
- Designed, developed, and sustained a comprehensive ERP solution, complete with MIS reports, using Java and Jasper Reports. This encompassed systems such as Stock Control, Cost Management, Shipping, and Quality Assurance.
- Created, developed, and maintained a Payroll system utilizing C#.NET, Crystal Reports, and MSSQL. Subsequently, migrated and implemented it in Java, Jasper Report, and MYSQL. Configured the system to function in a Linux environment and enabled remote accessibility through VPN.
- Oversaw the setup of the organization's overall IT infrastructure, handling tasks ranging from network and IT device administration to troubleshooting hardware and software issues.
- Engaged in tasks involving the use of Linux operating systems, including CentOS and Ubuntu.
Education
Master of Science (MSc) - Computer Science
University of Peradeniya
01.2013
Bachelor of Applied Science (BASc) - Computer Science, Statistics
University of Peradeniya
01.2009
Skills
Cloud operations & platform support (Azure, AWS, GCP)
Cloud billing, cost management & optimization (rightsizing, reserved instances, automation)
Monitoring, provisioning & performance tracking of cloud workloads
Cloud governance (policy implementation, audit support, risk management)
Cost management tools (Azure Cost Management, AWS Cost Explorer, CloudHealth)
Subscriptions, licensing, and tagging policy management
Vendor management & SLA tracking
ITIL or similar service management frameworks
Strong analytical & problem-solving abilities
Excellent communication & presentation (technical & non-technical audiences)
Proactive, organized, and detail-oriented
Ability to manage multiple priorities in fast-paced environments
Infrastructure as Code (IaC) – Automation using Terraform and AWS CloudFormation
Certification
AWS Certified Solutions Architect - Associate
Timeline
Senior Technical Lead (Cloud Services)
Sysco LABS Sri Lanka
2019.07 - Current
Associate Systems Lead
Fortude
2017.01 - 2019.07
Senior Systems Engineer
Brandix i3
2014.08 - 2017.01
System Support Engineer
Zaizi
2014.04 - 2014.08
Engineer Technology Services
Virtusa
2012.11 - 2014.05
Engineer QA
Virtusa
2011.07 - 2012.11
IT-Executive (Software development)
Bio Food Private Ltd.
2009.08 - 2011.07
Bachelor of Applied Science (BASc) - Computer Science, Statistics
University of Peradeniya
Master of Science (MSc) - Computer Science
University of Peradeniya