Nov 2024 – Present · 1 yr 6 mos

Aug 2022 – Present · 3 yrs 9 mos · London, England, United Kingdom

May 2021 – Aug 2022 · 1 yr 3 mos

• Role: Automation and Implement DevOps practices over cloud resources and on-prem resources
• Projects:
• 1. Completed the development of an automation suite to install database binaries (Without package managers) and to perform follow-up configuration activities using ansible playbooks. A shell script wrapper was integrated to encapsulate the complexity and to provide a user-friendly execution flow.
• 2. Set the platform and the standards to provision cloud database resources via Terraform.
• 3. Working on developing a cloud solution to automate the cloud maintenance activity flow. This reduces the communication toil of stakeholder communication and removes the dependency on AWS maintenance communication notifications. Technologies include: Lambda, RDS, SES, SNS, CodeBuild, GitHub

Oct 2019 – Aug 2022 · 2 yrs 10 mos

• Role: Manage the entire cloud infrastructure
• Responsibilities: CI/CD Implementations, Cost optimizations, Resource right-sizing, Privacy policy documentations, Vulnerability scanning and mitigation, Compliance implementation (SOC 2, ADA)
• Projects:
• 1. Release automation of W2P project
• Technologies: Gitlab CI/CD, External runners, CodePipeline with S3 triggers, Maven, Blue/Green CodeDeploy, SNS notifications
• 2. Release automation of Link project
• Technologies: Terraform, Gitlab CI/CD, External runners, CodePipeline with S3 triggers, Maven, Blue/Green CodeDeploy, SNS notifications
• 3. DMARC compliance against Mailchimp, AWS, Aweber, Intercom
• 4. Implementing Craft CMS DR solution
• Technologies: Craft, Route53 load balancing, SNS, S3 sync, EC2, CloudWatch
• 5. WAF implementation
• 6. Near real-time data streaming from MySQL to Elasticsearch via Logstash
• 7. Elasticsearch data modeling
• 8. Switching from AWS Pinpoint Toll-free to Long Code
• 9. Neo4j data modeling

Aug 2016 – May 2021 · 4 yrs 9 mos

• Role: Manage entire data infrastructure
• Technologies: Elasticsearch, Hadoop, Tungsten replicator, MySQL, Redis, CouchDB

Jun 2016 – Sep 2017 · 1 yr 3 mos

• Role: Founding member of Plutus
• Activities:
• 1. Company registration, Market evaluation, Procuring physical premise, Procuring hardware and office equipment
• 2. Setting up online presence: Moodle, Website, Blog, Facebook, Linkedin, Marketing campaigns
• 3. Setting up simulation environments: Oracle RAC, Oracle DataGuard on VMware workstation and Openfiler (ASM storage)
• 4. Conducting training sessions: Oracle, MySQL

Aug 2015 – Aug 2016 · 1 yr

• Role: Implementing and managing Oracle products
• Activities:
• 1. Implementing Oracle RAC, DataGuard, ADF
• 2. 24/7 Production support

Apr 2010 – Apr 2012 · 2 yrs

• Activities:
• Complete trading SOD (Start of Day) and EOD (End of Day) activities.
• Integration of releases
• Investigating environment issues
• Technologies: Linux, SQL, Oracle, PHP
• Project:
• 1. Operational Runbook
• Developed a comprehensive portal to automate SOD, EOD activities. This helped the operational team to carry out various tasks efficiently and with no mistakes. Later on, this was integrated into the in-house ticketing system. Features like Calendar, Project progress view, email notifications were also added later.

Apr 2012 – Aug 2015 · 3 yrs 4 mos

• Role: System Administrator
• Activities:
• 1. Implement and manage in-house Oracle databases, VMware ESXi
• 2. Procure hardware - Routers, Switches, Blade servers, SAN
• 3. Configure DNS, Email servers, Routers, Switches, Firewalls
• 4. 24/7 Production support
• Technologies/Products: Oracle, SurgeMail, SurgeFTP, Openfiler, Dell Poweredge R710, Dell SAN, Synology NAS, iSCSI, F5, Qualys
• Projects:
• 1. Implemented a solution that deploys a standby database for Oracle standard edition. This solution consists of shell scripts and PL/SQL scripts. This solution was the better choice over Dbvisit, for multiple reasons: It is self-owned and free. It is intelligent enough to identify which archived logs have been applied and ship only the required logs, It can send alerts on replication lag, Dynamic batch size for archived log shipping, ASM support
• 2. Oracle RAC implementation and data migration
• This was done from the scratch. Necessary hardware was purchased and configured based on the best practice (EG: Network bonding, Separate inter-connect, Jumbo frames, etc.). Once the hardware was provisioned, data migration was carried out with minimum downtime.

Oct 2009 – Apr 2010 · 6 mos

• Developing customer solutions with C++, PHP
• Projects:
• 1. OpenCV project
• Develop a program to identify defective items with OpenCV - Research purpose
• 2. Inventory solution for Sri Lanka Atomic Energy Board

Oct 2007 – Mar 2008 · 5 mos