I worked on the Scala service in DC/OS that provides an HTTP API for package management (https://github.com/dcos/cosmos). It enables users of DC/OS to run distributed applications in their clusters with a single command.

• Architected migration from a custom event sourcing architecture to a simple MariaDB cluster,

reducing technical debt.

• Led the backend team of six engineers. Made feature prioritization decisions, performed code

reviews, and provided mentorship to junior engineers.

• Designed and extended RESTful APIs in collaboration with frontend engineers.

• Made code maintenance less time consuming by ensuring that comprehensive tests were provided

with every code change.

• Improved code robustness with the Either and State types for error handling and DB access.

• Co-taught an intensive ten week course in webapp development for prospective software engineers.

• Covered Python, Flask, Jinja, SQLite, HTML, CSS, JavaScript, algorithms and data structures.

• Fixed several high-profile bugs in the Klout score MapReduce pipeline that incorrectly included

opted-out users in the score computations and public website.

• Added alerting that triggered when the scoring pipeline completed, so that adherence to SLAs

could be determined accurately.

• Developed ways of making the backend more efficient and realtime using the Storm framework

and Redis.

• Implemented a Storm bolt for persisting data continuously to HDFS.

• Wrote a custom Hadoop InputFormat to allow MapReduce jobs to consume data from Kafka

queues.