Customer Support Assistant ready.
I can help resolve customer inquiries with verified knowledge base citations across orders, returns, warranty claims, billing, and technical troubleshooting.
Indexed Knowledge Base Documents
Sample verified support articles indexed in vector storage.
System Architecture & Pipeline Engineering
End-to-end production RAG chatbot built on a 100% Free Tier stack.
Chunked ETL processing 50,000 Bitext customer service QA pairs on Google Colab (RAM < 12GB). Extracts metadata, brand tags, categories, and normalizes into structured QA pairs.
Tripartite fine-tuning (60% Tool Calling, 30% Domain QA, 10% Coherence) on Qwen/Qwen2.5-7B-Instruct. Reached 98.86% token accuracy and 0.0289 validation loss across 507/507 steps (1 full epoch, 4h 15m). Checkpointed to Google Drive.
Dense vector generation via BAAI/bge-small-en-v1.5 (384-dim, normalized). Batch upsert into Qdrant Cloud Free Tier cluster with payload filtering on brand and category.
Sub-50ms deterministic greeting fast-path, bounded reasoning loop (≤ 2 iterations), structured citation injection, and zero-cost mock fallback when Groq API keys are not supplied.