Md Wasim H

Skills

Experience

• Data Engineering Intern at Sigmoid

  2026-01-01 – Present

  Capstone – Retail Data Pipeline: Built a production-grade batch pipeline using Medallion Architecture (Bronze → Silver → Gold) on Databricks (PySpark, Delta Lake); modeled Star Schema with fact_sales, dim_customer, dim_product and SCD Type 2. Engineered data cleaning, validation & deduplication; built a custom DQ framework (uniqueness, completeness, reconciliation) logging to a centralized table; orchestrated via Airflow DAG and synced to Snowflake with idempotent MERGE logic. GenAI – PDF Compliance Checker: Designed a multi-agent LangGraph pipeline with parallel async agents (PII detection, confidential data, encoding validation, abusive content) and a Reflection layer producing structured compliance reports.

• Freelance Mobile App Developer at Nuvance Technology

  2025-12-01 – 2026-01-01

  Contributed to GossipCom (Flutter-based social app); delivered Figma-aligned UI, fixed Google Sign-In (Firebase Auth), resolved timer/logic bugs, and managed branch merges and deprecated API migration. Handled production stabilization and led seamless developer handover with clean branch management.

• Research Intern at IIT Patna

  2024-06-01 – 2024-07-01

  Trained and evaluated 8 ML/DL models for Human Activity Recognition; deployed Pyramid Vision Transformer (PVT) achieving 94.36% accuracy using live CSI data from ESP32/WiFi routers via Firebase. Built a Flutter app for real-time remote human activity prediction integrated with the deployed PVT model.

Projects

• DetailLens – AI Product Info Extractor

  Built an AI-powered Flutter app that extracts and summarizes product details from packaging images via Gemini AI; features multi-image analysis and a Read Aloud mode with auto Hindi translation using Flutter TTS and Riverpod.

  FlutterDartRiverpodGoogle Gemini AIFlutter TTS
  View project →

• Quiz App

  Developed a dynamic quiz application with multi-category randomized questions, real-time score tracking, and final performance summary with Firebase backend.

  FlutterDartFirebase

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