Nicholas Ifeajika

Co-authored a package management system for a research-based Clinical Decision Support (CDS) toolkit; extended tooling to handle deterministic packaging; completed an end-to-end proof-of-concept demonstrating the research approach; contributed to cross-functional integration of CDS tooling with lab workflows.

Developed an activity tracking feature using Python, Flask, and AWS Lambda; led a team of 3 to modularize the online learning offering; achieved sub-50ms request serving times; redesigned cross-border payments gateway by migrating from Java to TypeScript to maintain language consistency; contributed to the merchant invoicing feature and built authentication middleware; improved platform reliability to handle over 1,000 requests per second.

Implemented data ingestion and transformation pipelines, moving data from Hive to Cassandra; improved Wikimedia analytics query service; designed endpoints to serve internal and external researchers; co-authored a common Python library used across research teams; re-implemented survivable anti-vandalism ML models and integrated them into the knowledge retrieval workflow.