Headline

SDE 2 @AngelOne | Individual Excellence Award ’24 & ’25

About

Software Engineer II at Angel One, building and owning production systems end-to-end on the NXT sub-broker platform — a high-traffic fintech product used by thousands of sub-brokers across India. Over the past year, I've shipped features across the full stack: owned the Pre-Trade Proof compliance pipeline (multi-source call recording ingestion + AWS Glue ETL), led the NXT PMS Dashboard end-to-end, and drove a self-initiated Core Web Vitals optimization that cut the JS bundle by 57% (238KB → 101.6KB) with a projected Lighthouse Performance jump from 57 → 90. On the frontend, I've led the Vue.js 3.5 core repo upgrade, built the PWA + FCM push notification system (28% engagement ↑, 35% retention ↑), revamped the dashboard for a 30% load time reduction, and architected a reusable component library now used across the entire NXT codebase. Recognised with the Individual Excellence Award two consecutive years (2024 & 2025). Strong CS fundamentals — 800+ DSA problems solved on LeetCode and GeeksforGeeks. Open to high-impact full stack and frontend engineering roles.

Location

Greater Bengaluru Area

AI stack

claude code

claude

cursor

deepseek

github copilot

windsurf

Work experience

Software Developer 2 at Angel One, Apr 2026 - Present · 5 mos, Bengaluru, Karnataka, India, 🔹 Spearheaded a self-initiated Core Web Vitals overhaul of the NXT platform — cut initial JS bundle by 57% (238KB → 101.6KB) via a range of optimizations including lazy-loading, parallelized API calls, deferred third-party SDKs, and caching strategies; stabilized CLS to 0 and improved Lighthouse Performance from 57 → 90. Also led the Vue.js 3.2 → 3.5 repo upgrade — resolved breaking changes in UI bindings and canvas wrappers, purged heavy dependencies (Lodash, v-calendar, detect-browser), and authored team-wide migration SOPs and coding standards. 🔹 Owned end-to-end architecture and delivery of the NXT PMS (Portfolio Management Service) Service independently handled frontend and backend; directly unlocking INR 2.8 Crore in incremental revenue by surfacing high-ticket cross-selling visibility for sub-brokers. 🏆 Individual Excellence Award — 2025

Software Developer 1 at Angel One, Jul 2024 - Mar 2026 · 1 yr 9 mos, Bengaluru, Karnataka, India, 🔹 Converted the NXT platform into a Progressive Web App (PWA) and integrated multi-device web push notifications (iOS, Android, Desktop) via FCM (Firebase Cloud Messaging) and Service Workers – driving a 28% increase in user engagement and 23% improvement in retention. 🔹 Led end-to-end implementation of a secure token architecture — replaced access-token-only auth with a dual-token system using HttpOnly cookies, short-lived access tokens and rotating refresh tokens, eliminating XSS-based token theft and handling silent re-authentication seamlessly across frontend and backend. 🔹 Engineered recursive folder upload for the Admin Portal using webkitdirectory API — persisted nested folder hierarchy in the database and mirrored it on the frontend as a fully navigable file-explorer-style Content Library; redesigned legacy uploads with presigned S3 URLs for direct browser-to-S3 transfers, eliminating large-file API timeouts and reducing backend network overhead. 🔹 Built and owned the complete frontend of the OFS (Offer For Sale) module — delivering the complete workflow across Landing, Order Pad, Bid Detail, Modify/Cancel, and Bid Report; engineered a multi-client Order Pad with countdown timer for exchange bid windows, category-based bidding (Retail/HNI/Employee), and multiple inline validation — enabling 10,000+ daily active Sub-Brokers to manage client OFS applications from discovery to reporting within a single time-sensitive exchange workflow. 🏆 Individual Excellence Award — 2024

SDE Intern at Angel One, Jan 2024 - Jun 2024 · 6 mos, India, 🔹Developed and deployed the Stock Overview feature and a real-time Stock Ticker (WebSocket-driven, globally embedded in the app header) end-to-end on NXT using Vue.js, Vuetify, and Pinia; collaborated with product, design, and backend teams across the delivery lifecycle. 🔹 Architected a reusable component library with 10+ shared UI components (Guide Tour, Side Dialog, TabColumn Layout, SegmentWise Bar Graph) and common utility functions embedded across NXT – reducing redundant code and accelerating team delivery velocity.

Software Development Internship at powerpbox (Powerp Box IT Solutions Pvt Ltd), Jun 2022 - Aug 2022 · 3 mos, Remote, 🔹Contributed to the development of a Freight & Logistics ERP Platform by building and enhancing RESTful APIs using Node.js, Express.js, MongoDB used for shipment tracking and operational workflows.

Education

Bachelor of Technology - BTech, Computer Science, Indian Institute of Information Technology(IIIT), Sonepat

12th, PCM, salwan public school

Public links

github: https://github.com/arjunn-chaudhary

leetcode: https://leetcode.com/arjundagar28