Educational Technology Department, Saarland University | Saarbrücken, Germany

SRL Course Platform (Full-Stack, Lead Developer)

• Architected end-to-end adaptive learning platform (React + TypeScript, Node.js/Express, PostgreSQL + pgvector); authored ADRs covering authentication, LLM abstraction, and data architecture
• Engineered a Medallion ETL pipeline ingesting PDFs, LLM-driven semantic chunking, and pgvector HNSW indexing
• Implemented hybrid retrieval combining pgvector HNSW vector similarity and BM25 full-text search (PostgreSQL GIN index) via Reciprocal Rank Fusion (RRF), exposed through a FastAPI endpoint

AI Co-Design Platform — Audio-to-Knowledge-Graph Pipeline

• Architected NLP pipeline converting pedagogical audio to knowledge graphs: OpenAI Whisper STT, pyannote speaker diarization, LLM entity and relation extraction

Real-Time Gaze Streaming Optimization

• Optimized WebSocket-based real-time gaze data streaming from Pupil Labs glasses API, reducing end-to-end latency on a custom behavioral data collection tool

Computational Interaction Group (CIX), Saarland University | Saarbrücken, Germany

• Built automated computer vision pipeline (OpenCV, MediaPipe) processing 50–60 typing videos (5M+ frames); achieved 96% accuracy on hand posture detection, eliminating manual annotation bottleneck for interaction research
• Delivered production-ready dataset and reusable pipeline enabling scalable behavioral analysis for touchscreen/gesture interaction studies

Orion Solutions | Lucknow, India · Hybrid

• Shipped responsive web interfaces (React, HTML, JavaScript) in cross-functional team; managed design-to-dev handoff; integrated REST APIs and database layers (MongoDB, SQL)