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Harshdev625/README.md
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Engineering Snapshot

Software Engineer · HashedIn by Deloitte
Building distributed systems and data infrastructure

Focus Areas: Backend Architecture · Data Engineering · System Performance · API Design · Distributed Systems

Current: Enterprise full-stack development with Java Spring Boot, Angular, and AI-powered internal tools

Education: Integrated M.Tech., IIITM Gwalior (May 2026)

Engineering Credentials:

  • LeetCode Knight · 2036 rating · Top 2.08% globally
  • 1300+ algorithmic problems solved across platforms
  • Meta Hacker Cup 2024 · Global Rank 3636
  • Google Kick Start 2022 · Global Rank 1773

Professional Experience

Software Development Engineer · HashedIn by Deloitte

Apr 2026 – Present · Bangalore, India

  • Engineering enterprise full-stack applications with Java Spring Boot, Angular, and .NET in a high-performance program
  • Developing an AI-powered Buddy Agent for crew onboarding with a 5-engineer Agile team
  • Implementing REST APIs, authentication workflows, and scalable backend services for internal enterprise tools

Full Stack Developer · Bytebridge Solutions LLP

Sep 2023 – Feb 2024 · Remote

  • Architected a college management platform serving 500+ concurrent users with role-based access control
  • Designed a hierarchical messaging system with granular permissions, reducing administrative overhead by 40%
  • Optimized database performance through indexing and projection strategies, cutting API latency by 30%

Featured Engineering Work

GlobalMart · Data Engineering Pipeline

Full-stack data infrastructure processing 110K+ records

GitHub

Tech Stack: Databricks · PySpark · Delta Lake · dbt · Airflow · Docker

Overview: End-to-end medallion architecture (Bronze → Silver → Gold) for the Olist Brazilian E-Commerce dataset, delivering actionable business intelligence through a star schema model.

Key Achievements:

  • Processed 110K+ order items representing $15.4M in revenue
  • Implemented SCD Type 2 customer dimension with 9 dbt models and 26 data quality tests
  • Achieved 100% pipeline success rate with custom dead-letter queue and reconciliation system
  • Built Lakeview dashboard with 5 analytical views covering revenue, geography, delivery, categories, and seller performance

Technical Decisions:

  • Selected Delta Lake for ACID compliance and time travel capabilities
  • Used dbt for modular, testable transformation logic
  • Implemented Airflow for idempotent orchestration and observability

AI Codebase Copilot · Agentic RAG System

Multi-agent AI system for semantic code understanding

GitHub

Tech Stack: TypeScript · Python/FastAPI · LangGraph · Qdrant · Tree-Sitter · Next.js · Ollama

Overview: Agentic RAG system enabling multi-agent workflows for debugging and semantic code understanding with privacy-preserving local LLM integration.

Key Achievements:

  • Architected multi-agent workflows using LangGraph for complex debugging scenarios
  • Implemented AST-based code indexing with Tree-Sitter for precise cross-language dependency retrieval
  • Enabled real-time code analysis with local Ollama integration, eliminating external API dependencies

Technical Decisions:

  • Chose LangGraph over LangChain for stateful multi-agent orchestration
  • Selected Qdrant for low-latency vector similarity search
  • Implemented FastAPI for high-performance async endpoints

TimeMachine · Chrome Extension

Productivity tool with 30+ active users

GitHub · Chrome Store

Tech Stack: Chrome MV3 · Node.js · Express · MongoDB · Chart.js · PDFKit · EmailJS

Overview: Real-time site monitoring and Pomodoro timer extension with automated daily reporting.

Key Achievements:

  • Launched extension with 30+ active users maintaining high engagement
  • Implemented secure JWT authentication and automated PDF generation
  • Achieved production reliability with connection retries and strict CSP policies

Technical Decisions:

  • Used Chrome MV3 for modern extension security and performance
  • Integrated node-cron with PDFKit for automated daily reports
  • Implemented connection pooling and retry logic for backend resilience

SDEverse · DSA Learning Platform

Community-driven algorithm learning ecosystem

GitHub · Live Demo

Tech Stack: React · Redux · Node.js · Express · MongoDB · Tailwind CSS · JWT

Overview: Unified platform for competitive programming statistics and interactive algorithm learning.

Key Achievements:

  • Aggregated statistics from LeetCode, Codeforces, and CodeChef into unified developer profiles
  • Built community-driven content workflow with secure JWT authentication and admin moderation
  • Created interactive algorithm modules in C++, Java, and Python with complexity analysis

Technical Decisions:

  • Used Redux for predictable state management across complex data flows
  • Implemented role-based access control for content proposal workflow
  • Integrated Markdown with LaTeX support for mathematical content

Engineering Competencies

Languages & Frameworks

Java Python TypeScript JavaScript C++ SQL

Spring Boot Node.js Express .NET React Angular Redux


Data & Infrastructure

Databricks PySpark Delta Lake dbt Airflow

PostgreSQL MongoDB Redis Docker Google Cloud


AI & Testing

LangChain LangGraph RAG Vector Embeddings

JUnit Mockito PyTest xUnit


Open Source Contributions

  • Maintainer for TimeMachine, SDEverse, and GlobalMart repositories
  • Reviewed 40+ community pull requests · Merged 90+ PRs
  • Problem Setter · Junior Programming Contest II (AASF)

GitHub Activity

GitHub Stats

Top Languages

GitHub Streak


Open to collaboration on impactful engineering work


LinkedIn · GitHub · Email

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