Developed and operated large-scale Java-based billing services for Amazon Advertising on AWS world-wide. Demonstrated technical leadership by designing next-gen billing systems, refining scrum best-practices, and mentoring new engineers. Recognized as a subject matter expert in internal networking and framework architecture, provided 24/7 on-call support, and maintained documentation to streamline team knowledge-sharing.

Developed specialized tools for data visualization, including a C library and Python extension to convert multi-dimensional NetCDF data to PNG heat-maps. Conducted research on scalable time-series databases, such as Postgres' Timescale DB, and cloud orchestration solutions, such as Kubernetes. Created various DevOps tools in Python and worked with Redis and Luigi for data pipeline management.

• Developed performance tests in Python using the Locust framework for the Watson Natural Language Classifier service.

• Automated periodic tests with Jenkins and displayed results on a centralized dashboard for tracking.

• Developed an in-house content management system (CMS) for clients’ websites using Laravel in PHP.

• Supported clients’ retail websites running on the Magento e-commerce platform.

• Administered CentOS servers (including cPanel, Apache, and MySQL) and managed DNS records.