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piyush1856/README.md

Hi 👋, I'm Piyush Tyagi

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Backend Software Engineer | GenAI Engineer | Python & Java Developer | Problem Solver 🚀


🚀 About Me

I'm a passionate Backend Software Engineer specializing in high-performance APIs, distributed systems, and AI-driven backend development. With 2+ years of experience building scalable, fault-tolerant systems using Python, Java, and cloud architecture.

  • 💻 Currently building B2B e-commerce microservices at WizCommerce using Python FastAPI, optimizing search with Elasticsearch and handling 1M+ records at scale.

  • 🤖 Previously led backend development for Fynix AI coding assistant, improving codebase indexing by 90%+ through embedding optimization and vector database tuning.

  • 🏗️ Built production-grade systems from 0 → 1 at early-stage startups, improving throughput by 70-80% and reducing latency by 80%.

  • 🏓 Represented state-level U16 in table tennis—discipline & competitiveness fuel my engineering journey.


🛠️ Tech Stack

Programming Languages

Java Python JavaScript SQL

Frameworks & Libraries

Spring Boot FastAPI LangChain LangGraph

Databases & Messaging

PostgreSQL MySQL Redis Elasticsearch RabbitMQ Kafka

Cloud & DevOps

AWS GCP Docker Kubernetes

AI & ML

OpenAI Vector DB RAG


💼 Experience

🚀 Software Development Engineer I

WizCommerce (Oritur Technologies Pvt Ltd) | Sep 2024 — Present

  • Developed and maintained Python FastAPI microservices for B2B e-commerce platform
  • Improved Elasticsearch search with fuzzy search and relevance scoring
  • Optimized high-traffic APIs reducing latency by 80% and increasing throughput by 35%
  • Built Payment Terms module with dynamic configurations
  • Implemented parallelized batch migration pipeline handling 1M+ records at 1000+ docs/sec

Tech Stack: Python, FastAPI, PostgreSQL, Elasticsearch, Redis, AWS


🤖 Software Development Engineer I (GenAI)

Fynd (Shopsense Retail Technologies Ltd) | Feb 2024 — Aug 2024

  • Led backend development for Fynix AI coding assistant with IntelliJ and VS Code extensions
  • Improved codebase indexing by 90%+ through embedding optimization and vector database tuning
  • Designed modular ETL pipelines for GitHub, GitLab, Azure DevOps, Quip, Google Docs, and BigQuery
  • Engineered large-scale data ingestion for Stack Overflow and public GitHub datasets
  • Built intelligent workflow using LangChain and LangGraph

Tech Stack: Python, Java, Kotlin, LangChain, LangGraph, Vector DB, OpenAI, Claude


💡 Backend Developer (Founding Team)

Growder Technovations & Ompax Lifestyle Pvt. Ltd. | Mar 2023 — May 2024

  • Engineered high-performance backend architectures across two early-stage B2B platforms
  • Designed Order Management System improving throughput by 70-80%
  • Built production-grade User Management with JWT authentication and RBAC
  • Developed reusable APIs for Shiprocket, Shopify, and payment gateway integrations
  • Automated warehouse, logistics, and design workflows reducing manual dependencies significantly

Tech Stack: Java, Spring Boot, MySQL, PostgreSQL, Elasticsearch, AWS, RabbitMQ


💻 Notable Projects

  • Fynix AI (https://fynix.ai): AI-powered coding assistant with IDE extensions, RAG, and vector databases
  • WizCommerce Platform: B2B e-commerce microservices handling 1M+ records with optimized search
  • Inpackaging (https://inpackaging.com): B2B e-commerce backend with Order Management System
  • Growder (https://growder.com): Full-featured materials marketplace with microservice architecture
  • User Management System: RBAC + JWT-based user control with production-grade security
  • Order Management System: Scalable backend with payment API integration and workflow automation

📈 GitHub Stats


🎓 Education

🎓 Master of Computer Applications (MCA)
Machine Learning and Artificial Intelligence
Amity University, Noida | 2025

🎓 Data Science and Machine Learning Certification
Scaler DSML | 2025

🎓 Full Stack Web Development Certification
Masai School, Bengaluru | 2023

🎓 Bachelor of Business Administration (BBA)
Birla Institute of Technology, Mesra | 2020


🏅 Achievements & Skills

  • 🧠 Solved 300+ coding problems across LeetCode, Codeforces
  • 🚀 Built products from 0 → 1 at multiple early-stage startups
  • 📊 Expertise in Backend Development, Microservices, AI/LLM Systems
  • 🔧 Strong in System Design, API Optimization, Database Tuning
  • ☁️ Hands-on experience with AWS, GCP, Docker, Kubernetes

🤝 Connect With Me



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  2. Business-Case-LoanTap-Logistic-Regression Business-Case-LoanTap-Logistic-Regression Public

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  3. Jamboree_Education---Linear_Regression Jamboree_Education---Linear_Regression Public

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  4. Business-Case-Yulu---Hypothesis-Testing Business-Case-Yulu---Hypothesis-Testing Public

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  5. piyush1856-Business-Case-Delhivery---Feature-Engineering piyush1856-Business-Case-Delhivery---Feature-Engineering Public

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  6. Business-Case-Aerofit---Descriptive-Statistics-Probability. Business-Case-Aerofit---Descriptive-Statistics-Probability. Public

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