About

Location: Sri Lanka

• >Built and evaluated a Kubernetes R&D lab for a distributed Erlang-based carrier-grade SMS Firewall, including StatefulSets, headless-service discovery, manifests, and Erlang connectivity testing; it was not deployed to production.
• >Build and maintain Docker and Podman container images for telecom applications across development, testing, and production environments.
• >Deploy, configure, upgrade, and validate SMS Firewall environments on Red Hat Enterprise Linux servers for customer implementations.
• >Provide L1/L2/L3 production support for live telecom filtering infrastructure, including first-line triage, incident investigation, escalation, failure recovery, and post-issue validation.
• >Investigate production incidents involving distributed Erlang nodes, M3UA connectivity, firewall node failures, MariaDB, networking, Linux services, and telecom applications.
• >Implement change requests and bug fixes in Erlang-based SMS Firewall components and support release validation.
• >Develop Bash automation scripts to simplify deployment, installation, and operational workflows.
• >Work with SS7, MAP, M3UA, SCTP, and SIGTRAN during deployment validation and production troubleshooting.
• >Analyze telecom signalling traces, application logs, routing behavior, and Linux/network state to isolate protocol and production failures.

Location: Sri Lanka

• >Installed and configured SMS Firewall environments for testing, staging, and customer production deployments.
• >Supported production deployments and post-deployment validation activities.
• >Investigated customer-reported production issues through log analysis, service checks, and infrastructure troubleshooting.
• >Provided first-line monitoring and operational support using Nagios, triaging alerts, performing initial service and infrastructure checks, escalating when required, and supporting recovery.
• >Conducted research evaluating ClickHouse compatibility with the SMS Firewall platform.
• >Assisted with telecom protocol validation during customer deployment testing.
• >Worked with Erlang-based SMS Firewall components to implement change requests, fix product bugs, and support release validation.

Location: Sri Lanka

• >Assisted with SMS Firewall testbed installation, configuration, deployment validation, and operational support across Linux environments.
• >Supported DevOps and implementation teams with Linux administration, log analysis, service checks, and environment troubleshooting.
• >Cleared Nagios alerts and handled operational monitoring events under senior engineer guidance.
• >Helped maintain deployment documentation, shell scripts, and repeatable operational procedures for telecom platform delivery.

Location: Remote

• >Design, deploy, and maintain Linux-based VPS infrastructure for personal applications, APIs, Telegram bots, and automation services.
• >Deploy Dockerized applications using GitHub Actions for automated CI/CD.
• >Configure Nginx reverse proxies, SSL certificates, and Cloudflare DNS.
• >Maintain self-hosted APIs, Telegram bots, websites, and monitoring services.
• >Perform infrastructure monitoring, backup management, and production troubleshooting.

Location: Rajagiriya, Sri Lanka

• >Managed Linux VPS infrastructure including system updates, monitoring, backups, and routine maintenance.
• >Containerized backend services using Docker to simplify deployment and improve consistency.
• >Developed backend APIs using Spring Boot and frontend dashboards using Next.js.
• >Integrated payment gateways and implemented e-commerce functionality.
• >Assisted in deployment automation and server administration.