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vikraghuwanshi/README.md

Hi 👋 I'm Vikram Raghuwanshi

Backend Engineer with 8+ years of experience building reliable, data-intensive enterprise systems using Python, SQL, PySpark, and AWS.

I specialize in:

  • Designing resilient backend services
  • Data validation & migration (Oracle ↔ PostgreSQL)
  • Comparing large JSON/XML files at scale
  • Long-running, fault-tolerant data pipelines

🧠 What I Work On

  • 🔍 Smart file comparison engines (JSON / XML / CSV)
  • 🗄️ Database-heavy backend systems (Oracle, PostgreSQL)
  • ☁️ Cloud-native solutions on AWS (S3, EC2, EMR)
  • ⚙️ Performance optimization & data correctness
  • 🔄 Migration validation & reporting systems

🛠️ Tech Stack

Languages & Frameworks

  • Python, SQL, PySpark
  • Django, REST APIs

Databases

  • Oracle, PostgreSQL

Cloud & DevOps

  • AWS EC2, S3, EMR, SQS
  • Jenkins, Shell Scripting

Data & Tools

  • JSON, XML, Parquet
  • Git, Linux

📌 Featured Projects

🔹 Smart JSON Diff Engine

A scalable comparison engine to deeply compare complex nested JSON files.

  • Auto-detects identifiers in lists
  • Handles unordered collections
  • Timestamp tolerance support
  • Clean diff paths for reporting

🔹 Database Migration Validator

Validates large-scale data migration between Oracle and PostgreSQL.

  • Extracts data to Parquet
  • Compares row-level & schema-level data
  • Generates reconciliation reports

🔹 AWS S3 Data Validation Pipeline

A fault-tolerant pipeline for validating data stored on S3.

  • Long-running job support
  • Retry-safe database connections
  • Clean reporting & logging

📈 GitHub Goals

  • Build clean, production-style backend projects
  • Share reusable engineering utilities
  • Improve system design & scalability knowledge
  • Contribute to open-source when possible

🤝 Connect With Me

⭐ If you like my work, feel free to star or fork the repositories!

Pinned Loading

  1. vikraghuwanshi vikraghuwanshi Public

  2. smart-json-diff smart-json-diff Public

    Deep comparison engine for complex nested JSON files with unordered lists and clean diff paths

  3. aws-s3-data-validation aws-s3-data-validation Public

    AWS S3 based data validation pipeline for long-running and fault-tolerant backend jobs

  4. db-migration-validator db-migration-validator Public

    Backend utility to validate large-scale data migration between Oracle and PostgreSQL databases