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HimanshuMandwal/README.md

Hey there, I'm Himanshu Mandwal Waving Hand

Frontend-Focused Full-Stack Engineer β€’ Building Scalable Banking & EdTech Experiences

Full-stack engineer with 3+ years of experience building secure, high-scale products across banking, fintech, edtech, and Web3. Designed modern UI systems, high-performance dashboards, and customer-critical journeys used by millions. Known for improving load times by 90%, reducing deployment failures by 20%, and creating reusable component systems that speed up delivery by 25%. Strong in debugging, performance tuning, and production reliability. Driven by clean engineering, ownership, and measurable impact.


πŸš€ Work Experience

  • Software Engineer – Frontend at IDFC FIRST Bank (Bangalore) IDFC FIRST Bank

    • Redesigned the Customer Experience section of the IDFC FIRST Bank app (8M+ users), delivering a modern, intuitive interface with zero regression to legacy flows.
    • Boosted dashboard performance by 90% by parallelizing API calls, implementing caching layers, and removing redundant backend requests.
    • Built mission-critical banking journeys including mobile/email updates, fraud reporting, transaction disputes, and loan foreclosure used by 20K weekly users.
    • Developed a configurable popup-based MFA system supporting 30K DAU, fully compatible with legacy business payment journeys.
    • Reduced deployment pipeline failures by 20% through robust unit tests, fixing CI automation issues, and proactive debugging via BrowserStack, Jaeger, and Grafana.
    • Conducted deep RCA on production bugs and crashes, delivering permanent fixes and improving overall system stability.
    • Productized reusable React + React Native component systems, reducing new feature development effort by 25% across teams.
    • Tech Stack: React.js, React Native, JavaScript, TypeScript, Node.js, Java, GraphQL, BrowserStack, GoCD, Grafana, Jaeger
  • Software Developer Engineer at Lido Learning Lido Learning

    • Built full-stack features using React, Node.js, Python, and TypeScript for a learning platform serving 30K+ active students.
    • Designed and deployed automated ETL pipelines ingesting 50K+ student records from AWS S3 daily, improving analytics accuracy by 20%.
    • Collaborated with product, engineering, and analytics teams to deliver features rapidly during high-growth periods.
    • Tech Stack: React.js, Node.js, Python, TypeScript, AWS S3, PostgreSQL
  • Software Developer Intern at Lido Learning Lido Learning

    • Built features for the Teacher Dashboard used by 4K daily active teachers using React.js, GraphQL, and Node.js.
    • Developed data-driven KYS (Know Your Student) modules surfacing student performance insights to support PTM readiness.
    • Tech Stack: React.js, GraphQL, Apollo Server, Node.js, Flask
  • Backend Developer Intern at Dapplooker DappLooker

    • Engineered a scalable subgraph generation pipeline by extending Graph CLI modules, powering 50+ production subgraphs.
    • Built analytics and retention dashboards increasing product insights adoption by 25%.
    • Developed backend APIs with TypeScript/Node.js and PostgreSQL; optimized SQL queries, monitored production logs, and implemented job scheduling.
    • Tech Stack: Node.js, TypeScript, PostgreSQL, GraphQL, Web3, Job Schedulers

πŸš€ My Superpowers

Languages: JavaScript, TypeScript, Java, C++
Frontend: React.js, React Native
Backend: Node.js, Express, GraphQL, Apollo
Databases: PostgreSQL, MongoDB
Tools: Git, GitHub, BrowserStack, GoCD, Grafana, Jaeger, AWS


πŸ”§ Technologies and Tools

Web Development: HTML5 CSS3 JavaScript Bootstrap SASS TailwindCSS React Context-API Next JS Redux React Router TypeScript MongoDB NodeJS Nodemon Express.js EJS

Languages: Java Python

Design: Figma Canva

Tools: Visual Studio Code Git GitHub Postman Jira Notion


🎯 What I’m Focusing on Right Now

  • Scaling frontend architecture for high-traffic apps
  • Building reusable components & micro-frontends
  • Deepening system design and distributed tracing expertise

πŸš€ Leveling Up with LeetCode

Leetcode Stats


πŸ“« How to reach me

Let's connect and collaborate! You can find me on:

I'm excited to explore new opportunities, learn from fellow developers and designers, and continue creating beautiful and functional digital solutions. Let's work together to make the web a more delightful place!

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  1. Codeial Codeial Public

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  3. monsters-rolodex monsters-rolodex Public

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  4. TODOApp TODOApp Public

    CSS