Sumit Bhardwaj

Senior Frontend Engineer @ RareBetSports

Delhi, India

About

Experienced Software Developer with a demonstrated history of working in the education management industry. Skilled in Analytical Skills, Management, Leadership, JavaScript, React, React Native, and Cascading Style Sheets (CSS). Strong engineering professional with a Master of Computer Applications - MCA focused in Computer Science from Guru Gobind Singh Indraprastha University.

Experience

  • Senior Frontend Engineer at RareBetSports
    Jul 2024 - Present · 2 yrs 1 mo

    • Built the RareBetSports Web3 fantasy sports platform from scratch, architecting the entire frontend using React, TypeScript, and Next.js. • Designed a scalable frontend architecture optimized for performance and real-time sports data rendering. • Implemented Framer Motion animations to deliver smooth, high-performance UI interactions. • Developed player performance section using Recharts, visualizing historical match data and achievements. • Built a high-performance leaderboard system using React Virtuoso virtualization to efficiently render large datasets. • Integrated Privy authentication to provide a Web2-like onboarding experience for a Web3 product, enabling login via email, phone, and social providers. • Implemented embedded wallets through Privy, abstracting blockchain complexity and handling on-chain transactions seamlessly. • Integrated Ethereum smart contracts to power decentralized betting and fantasy game mechanics. • Focused on Web3 UX improvements, reducing friction between traditional Web2 authentication flows and blockchain interactions.

  • Full Stack Developer at Parcel Inc.
    Sep 2023 - Jul 2024 · 11 mos

    • Built features for a DeFi payroll and expense management platform, contributing across both frontend and backend systems. • Implemented a real-time notification system for on-chain payroll and expense transactions, sending alerts via Email, Slack, and Telegram to Safe multisig wallet owners. • Developed the blockchain event listener and backend notification pipeline to monitor on-chain activity and trigger alerts. • Improved user engagement by ~30% by increasing visibility into pending multisig approvals. • Led a complete UI/UX revamp, simplifying complex DeFi workflows and improving usability. • The redesign resulted in a ~20% increase in active user engagement. • Implemented multiple workflow optimizations, contributing to scaling total payouts processed through Parcel from $7M to $500M. • Collaborated closely with smart contract, backend, and product teams to deliver end to end blockchain features.

  • Software Development Engineer II at Jio Platforms Limited (JPL)
    Jan 2023 - Sep 2023 · 9 mos

    • Led the migration of a large-scale production application from React to Next.js, improving application performance, scalability, and maintainability. • Implemented Server-Side Rendering (SSR) and performance optimizations that reduced Time to Interactive (TTI) by ~50%. • Delivered SEO improvements alongside the Next.js migration, improving search engine discoverability and page indexing. • The combined impact of SSR, SEO improvements, and the Next.js migration increased weekly active users from 300K to 1.2M. • Led a platform-wide UI revamp migrating from custom styling to Jio Design System (JDS) components, improving UI consistency, maintainability, and development velocity. • Introduced React Query for server-state management and API caching, reducing redundant requests and lowering backend load by ~30%. • Integrated Sentry monitoring and error tracking, improving production bug detection and reducing issue resolution time by ~40%. • Implemented a scalable frontend folder structure and component architecture, improving code readability, maintainability, and developer productivity.

  • SDE at myclassroom
    Feb 2021 - Jan 2023 · 2 yrs

    • Built the MyClassroom ed-tech platform from scratch, developing the core web learning platform. • Implemented live video conferencing for online classes, enabling real-time interaction between teachers and students. • Integrated Paytm and Razorpay payment gateways, enabling seamless course purchases and subscriptions. • Developed a mock test platform allowing students to take MCQ-based exams across multiple subjects. • Built iOS and Android apps using React Native with feature parity to the web platform and published them to App Store and Google Play. • Led a team of 3 frontend engineers, managing development of MyClassroom (web & mobile) and MyCRM platforms. • Collaborated with backend and product teams to deliver scalable education and testing features.