👋 Hello World!

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I’m Anurag Sindhu, a passionate Backend Engineer from 🇮🇳 India, currently living in the vibrant city of Bangalore!

🔭 I’m currently working at 👕 Tmrw (Aditya Birla Group).
🌱 I’m deeply involved with NodeJs, Javascript, TypeScript, MySQL, MongoDB, GCP, AWS, NestJs, Docker, and Jest.
👔 Previously worked at Medibuddy, Falabella, and In Time Tec.
📬 You can reach me at sindhuanurag2@gmail.com or connect on LinkedIn 📧.
📄 Here’s my Resume, only a click away! 📝
🎯 Check my coding activity on Leetcode and Hackerrank! 💻

🛠️ Languages & Tools

🛠️ Core Technologies

🗄️ Databases

☁️ Cloud & DevOps

Experience

👕 Tmrw (Aditya Birla Group) - SDE-3 | Mar 2023 - Present

🔥 **Key Achievements** - **🗂️ Migrated **1.7** Crore User Data **(100 GB)** to **MariaDB** from **MySQL DB** via **LOAD DATA INFILE** with minimal downtime (< 10 minutes ⏲️). - ** Engineered a **𝐁𝐥𝐨𝐨𝐦 𝐅𝐢𝐥𝐭𝐞𝐫𝐬** DSA to check user presence (**𝟏 𝐜𝐫𝐨𝐫𝐞** * **𝟐𝟎 𝐡𝐚𝐬𝐡** functions), optimizing for constant time complexity with a **𝟐𝟓 𝐌𝐁** memory trade-off, ensuring scalability for **𝟏𝟎-𝟏𝟓** years with 𝟐𝟎% growth. - ** Integrated OTP sharing and login in under 𝟭 𝘀𝗲𝗰𝗼𝗻𝗱 via caching and Pub-Sub, achieving scalability to 𝟭 𝗠𝗶𝗹𝗹𝗶𝗼𝗻 TPS with 𝗽𝟵𝟵 latency. - ** **𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠** a solution to display **𝐮𝐧𝐢𝐪𝐮𝐞** active users with **𝑯𝒚𝒑𝒆𝒓𝑳𝒐𝒈𝑳𝒐𝒈** DSA, using **𝘄𝗿𝗶𝘁𝗲-𝗯𝗲𝗵𝗶𝗻𝗱** caching to reduce latency. - 🚀 Spearheaded the successful **MERN (From Rails) stack and MSA transition** at **Bewakoof.com** [Tmrw Acquisition], resulting in a remarkable **30% improvement** in scalability 📈, enhanced multi-tenancy capabilities, and a **25% increase** in overall system stability ⚖️. - **🔑 Headed **OAuth** and **My Account**, implementing real-time user migration with **99% success**. Integrated OTP sharing and login in <1 second using **Redis**. - **🛠️ Designed, structured, and deployed multiple **microservices** with **gRPC** and **Pub-Sub** communication, integrated with **Amazon SQS**. Achieved scalability up to **million TPS** with **p99 latency**. - **🔥 Collaborated on **𝗡𝗘𝗦𝗧** Setup, integrated discount% functionalities, price changes, cart synchronization, and ratings/reviews for a seamless user experience🤝, while also owning and enhancing custom product features. - **✅ Headed the **𝗮𝘂𝘁𝗵-𝗮𝘂𝘁𝗵𝘇** with session, my-account📒 along with implementing real-time user migration having a 𝟵𝟵% success rate - **⚖ Oversaw cart synchronization between back-end systems, **F𝗮𝘂𝗹𝘁-T𝗼𝗹𝗲𝗿𝗮𝗻𝘁** enhancing user🤵🏻 experience and ensuring **serviceability** - **🌈 Upgraded customer-related API calls to **𝗚𝗿𝗮𝗽𝗵𝗤𝗟** for high performance⚡️. Rerouted Shopify calls through a separate app for optimized resource utilization♻️ - **🚦Created templates for High-Level Design (**𝗛𝗟𝗗**) and Low-Level Design (**𝗟𝗟𝗗**) documentation to ensure standardized format - **🔥 Headed OAuth and My Account, implementing real-time user migration with **𝟗𝟗%** success. Integrated OTP sharing and login in **<𝟏 second** using Redis. - **📝 Integrated **ESLint**, **Husky** for code consistency, **Pino Logging** library, and robust error ❗ handling for asynchronous calls ↪, reducing errors by **35%**. 🛠️ **Tech Stack**: Node.js, gRPC, Redis, GraphQL, AWS SQS

👕 Medibuddy - SDE-3 | Oct 2022 - Jan 2023

🔥 **Key Achievements** - **🛡️ Injected request validation to prevent SQL injection and enhance the system's security 🔐 and reliability. - **📒 Replaced **𝐀𝐩𝐚𝐜𝐡𝐞 𝐙𝐨𝐨𝐤𝐞𝐞𝐩𝐞𝐫** with **𝐆𝐨𝐬𝐬𝐢𝐩 𝐏𝐫𝐨𝐭𝐨𝐜𝐨𝐥** for SMS, enhancing reliability, **𝐭𝐡𝐫𝐨𝐮𝐠𝐡𝐩𝐮𝐭**, and latency. - **⚡ Achieved a **90% performance boost** in **Medibuddy Surgery's** inventory tool by refactoring **MySQL** queries for large-scale data control. - **🍏 Improved the inventory tool of MediBuddy Surgery 💊 performance by **𝟵𝟬%**🎉 by refactoring **𝗠𝘆𝗦𝗤𝗟** queries. - **🍔 Streamlined maternity👩‍🍼 appointment📆 reminders🎗️ by designing a system 💾 that sends What'sApp notifications, eliminating the need for **manual reminders**🎗️ - **🌐 Engineered a distributed system for efficient data synchronization in **Elasticsearch**, slashing manual intervention by **93%**. The upgraded system is now highly reliable, consistently performs, and noiselessly zips along, directly benefiting customers. - **🔍 Corrected the map coordinates algorithm for each address by implementing an efficient zoom-in 🔎 approach. - **💰 Reduced **Google Maps API** cost by **70%** by stitching a cache mechanism storage to avoid duplicate calls for large scaling. 🛠️ **Tech Stack**: Node.js, gRPC, Redis, GraphQL, AWS SQS

👕 Falabella - Senior Software Engineer | Dec 2019 - Sep 2022

🔥 **Key Achievements** - **🔧 Proprietorship of **Geo Data** and **Notification services**, which led to **>95% availability**. - **🇦🇺 Led the full lifecycle🔄 development of My Account service, streamlining other services of my-account for enhanced user convenience. 1,5,10,25,50,75 to 𝟭𝟬𝟬% **conversion**. - **👜 Designed and developed💻 springverify architecture from scratch. Exposed low latency, high volume, high availability, and performance **𝗥𝗘𝗦𝗧** API for mobile📱 and web 💻 apps. - **🥇 Reduce latency by **𝟱𝟬%** with elevated coding, polished time complexity, pre-fetching data, algorithm enhancements🧹, leveraging problem-solving skills, new concepts, and achieving 𝟭𝟬𝟬% **𝘁𝗲𝘀𝘁 𝗰𝗼𝘃𝗲𝗿𝗮𝗴𝗲**💯 in unit, integration, and API testing. - **🚀 Caching, revamped queries, eliminated redundant API calls, reducing API reply time from **850 ms to 510 ms**, enhancing performance. - **📚 Streamlined onboarding using tools like **Postman**, **KT videos**, and **Swagger**, achieving a **20% reduction** in team integration time. - **📊 Elevated code structure and implemented a prefetching algorithm, which reduced latency by **50%** and improved data retrieval efficiency ⏱️ by **30%**. Achieved **100% unit**, **integration**, and **API test coverage** for enhanced software stability 🧹. - **💳 Integrated **Razorpay** for a **20% efficiency boost** in transaction processing, ensuring seamless and secure transactions. - **🔄 Improved architecture for better throughput, responsiveness, reduced database costs, and sharpened CPU efficiency. Migrated frontend dependencies to the backend, fine-tuning database queries for significant performance gains and less transparency. - **🤝 Partnered with vendors (e.g., **Flipkart**, **Razorpay**) to integrate **springverify API**. 🛠️ **Tech Stack**: Node.js, gRPC, Redis, GraphQL, AWS SQS

👕 In Time Tec - Software Engineer | Feb 2018 - Dec 2019

🔥 **Key Achievements** - **📚 Completed a professional development program "Learn and Code" focused on learning and coding! Acquired proficiency in valuable insights into the power of maintaining ⚙️ clean code in a productive environment. - **🌱 Tackled a "Learn and Grow" 🌱 program focused on personal development, emphasizing both fostering 🪴 strong relationships and supervising time effectively. - **🚀 Kicked off my journey toward proficiency in **JavaScript (JS)**, **TypeScript (TS)**, **Node.js**, **MySQL**, and **MongoDB**. Actively participated in a project where I authored API test coverages, successfully achieving **100% coverage** throughout my training! ☂️ 🛠️ **Tech Stack**: Node.js, gRPC, Redis, GraphQL, AWS SQS

Personal Projects

Stock Market App

…

🌟 Tech Skills

Technology	Proficiency
JavaScript	⭐ ⭐ ⭐ ⭐ ⭐
NodeJs	⭐ ⭐ ⭐ ⭐ ⭐
TypeScript	⭐ ⭐ ⭐ ⭐ ⭐
MySQL	⭐ ⭐ ⭐ ⭐ ⭐
MongoDB	⭐ ⭐ ⭐ ⭐ ⭐
Express	⭐ ⭐ ⭐ ⭐ ⭐
Data Structures	⭐ ⭐ ⭐ ⭐ ⭐
Algorithms	⭐ ⭐ ⭐ ⭐ ⭐
Git	⭐ ⭐ ⭐ ⭐ ⭐
Testing	⭐ ⭐ ⭐ ⭐ ⭐
System Design	⭐ ⭐ ⭐ ⭐ ⭐
JSON	⭐ ⭐ ⭐ ⭐ ⭐
REST	⭐ ⭐ ⭐ ⭐ ⭐
SQS	⭐ ⭐ ⭐ ⭐ ⭐
Docker	⭐ ⭐ ⭐ ★ ★

💼 Personal Projects In Detail

🚀 Stock Market App: A Passion Project Turned Profit Machine 💸

🔥 Built a Killer Stock Market App: Fueled by my passion for the markets, I created a custom Node.js application to dominate the game. 💪
📈 32% CAGR in 4 Years: My app’s performance speaks for itself, crushing the market average even after a shaky start (0% profit in the first 2 years!) 📉→📊.
🎯 Zerodha Master: Leveraged the Zerodha platform to execute trades seamlessly – buy, track, sell, like a boss 🏹.
💻 Tech Stack to Make You Drool: MongoDB, MySQL, Redis, Node.js, React.js, AWS – a symphony of powerful technologies 🎶.
🖋️ 23,000 Lines of Code: Pure dedication and craftsmanship poured into this masterpiece 🎨.
⏳ Time Investment? Worth Every Second: 4 years of continuous improvement to make this app sing 🎤.
💸 Profit Party: Regularly exceeding 30% returns in under a month* – this app is a money-making machine on autopilot! 🤑.
🤖 Automation Mastermind: My portfolio runs on autopilot, freeing me up – currently requiring only 1 hour of work per week! ⏱️.
📊 Market Maestro: My app captures the perfect timing (moment, price, quantity) for every trade 🎯.
💼 Managing a Portfolio Empire: Currently managing a staggering 3 portfolios, and expanding! 🌍 Pyramid Strategy.

⚙️ Features:

🕒 Daily Market Schedule: The app starts working daily when the market opens and goes to sleep when the market closes, automating all tasks from buy orders to sell triggers.

💡 Systematic Buy on Dips Investment Plan:

The app smartly creates Trigger/GTT setups, leveraging a strategy to buy shares on dips.
- 📉 Dynamic Dip Percentage: Automatically calculates a custom dip percentage for each share based on several factors, ensuring precision in decision-making.
- 🧠 Intelligent Trigger/GTT Creation:
  1. Create Trigger/GTT if any new holding enters the portfolio.
  2. Deletes all local and remote GTTs/Targets if the holding is no longer found, ensuring no unwanted triggers.
- 🔄 Maintain Trigger Price Gap: The app ensures that there is always a set gap between the current price and the configured Trigger/GTT price for each share, optimizing entry points.
- 📦 Quantity Configuration: Users can define quantities for each trade, and the app will execute accordingly.
- 🔺 Auto-Quantity Increase: Once a Trigger/GTT is hit, the app automatically increases the number of shares for the next trigger, following your strategy to maximize gains.

💼 Target/Sell Feature:

💰 Selling is as Important as Buying: The app provides dynamic options for selling shares at the right moment. Users can specify how much percentage they wish to sell after the price reaches a certain threshold.
- ⏳ Daily Sell Trigger Creation: Every day, the app creates a sell order/Trigger with the user-defined sell percentage or the system’s pre-defined percentage, whichever is earlier.
  - System’s Pre-defined Percentage is calculated based on the stock price:
    - For a stock priced at ₹100, the pre-defined percentage would be around 13%.
    - For a stock priced at ₹500, it would be around 12%, and so on.
  - The idea is to catch sudden upward jumps in the stock price, book profits, or buy later to convert it into Intraday or Sell Today Buy Tomorrow (STBT).
- 📈 Selective Selling: The user can choose specific shares that are up for sale, and the above actions will be applied only to the selected shares.
- 📝 Personal Notes: Users can add personal notes to track when and why they intend to sell particular shares, ensuring they never miss their planned exit strategy.
- 🔍 Handles Sell Precision:
  - If the target percentage is just 0.5% away from the current market price, the app evaluates whether to proceed with the sell order.
  - If no target percentage is given, the system uses the pre-defined strategy to ensure timely exits based on market conditions.

📊 Movements/Tracker Feature:

Keep a close eye on your favorite stocks with real-time tracking and alerts:

👀 Keep an Eye on Any Share: The app allows you to monitor any stock and keep track of its movements.
📅 Track Share Movements: Get a comprehensive movement status for a share over the last n number of days (up to 150 days), helping you make better investment decisions.
🔔 Set an Alert Price: Configure an alert price for any stock, and you’ll receive a WhatsApp alert when the price is hit 📲.
📈 Alert Percentage: Set a specific percentage increase/decrease to be monitored, and receive a WhatsApp alert when the stock matches your target percentage.
📝 Create Notes for Each Share: Stay organized by adding personal notes for each stock, helping you remember important details or strategies.
🗑️ Remove Shares Anytime: You can remove any share from your watchlist at any time with ease 🗑️.

📜 Investment Principles:

The app follows a few golden principles to ensure disciplined and strategic investment:

Buy when everyone else is selling and hold until everyone else is buying – by Warren Buffet. 🦈
Buy only those shares whose fundamentals and charts are very strong (limited to Nifty 50 and Nifty Next 50 stocks). 📊

🔮 The Future is Bright:

🌐 Multi-Broker Domination: World domination? Maybe not. But integrating with other brokers is definitely on the horizon 🌟.
🎒 Strategy Arsenal Ever-Expanding: My bag of tricks keeps growing, ensuring even greater returns in the future 📚.

💻 Code Links:

Backend Code (Market Explore): GitHub Repository 🔗
Frontend Code (Market Explore UI): GitHub Repository 🔗

Note: The code is private and will remain that way forever 🔒.

🖼️ Project UI:

Ready to unleash the power of code and automation in your investment journey? Let’s talk! 📧.

📊 GitHub Stats

🔗 Connect with Me

🚀 Let’s build something amazing together!