Hi, I am
Shubh Raj
Software Engineer
Backend Engineering - Open Source Contributor - Competitive Programmer - Agentic System - Full Stack Development
Consistency Heatmap
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Loading…Work Experience
- Automated lead capture via a secured webhook integrated with MacroDroid, utilizing a round-robin algorithm for instant employee assignment and eliminating 5 minutes of manual data entry per call.
- Modernized appointment workflows by integrating the Google Calendar API with SMTP, enabling instant meeting link generation and auto-dispatching invites, reducing meeting coordination overhead.
- Transformed client onboarding via a fault-tolerant CSV/XLSX import pipeline, utilizing fuzzy column mapping and algorithmic client allocation to process and assign up to 500 records instantly.
- Architected a real-time communication and dual-layer notification engine utilizing Socket.IO for isolated, room-based chat and Firebase Cloud Messaging (FCM).
- Developed a privacy-preserving virtual telephony integration using Exotel, managing asynchronous webhook callbacks for call state tracking.
- Incorporated an OTP system with master overrides and real-time SOS emergency triggers for the TMS.
- Configured E2E testing infrastructure via Playwright improving stability and optimized CI workflows.
- Optimized template sharing by migrating from query parameters to URL hash fragments, contributing 1.5k+ LOC.
- Recognized as one of the top contributors of the repo.
Projects
SkillBridge - AI-Powered Mock Interview Platform
- Built a production-deployed, real-time voice interview SaaS having database models with relational integrity, Firebase session-based authentication and a layered service architecture reduced inter-layer coupling.
- Transitioned a synchronous LLM call into an event-driven asynchronous background job via a message queue, implementing exponential backoff for fault tolerance.
- Implemented a Redis Cache-Aside architecture with a 15-minute TTL on interview dashboards, reducing database read load and cutting query frequency from every page load to only on cache misses.
- Designed a middleware and observability stack, integrating a Sliding Window Rate Limiter (4 req/hr/IP) to prevent API abuse, alongside Pino and Sentry for structured logging and error tracking.
Vessel - Remote Browser Isolation System
- Engineered a streaming pipeline via a custom WebSocket reverse proxy and dynamic port allocator pulling headless Chromium frames via CDP at 30 FPS with zero cross-session data leakage.
- Devised a TTL-based graceful reconnection mechanism, decoupling socket connections from container lifecycles to enable session recovery and automated 2-minute garbage collection.
- Enforced strict Linux cgroup resource limits (256 MB RAM, 0.5 vCPU) via Docker API, eliminating the "noisy neighbor" problem and guaranteeing host stability under adversarial load.
ForecastIQ - Predictive Forecasting Tool
- Orchestrated CrewAI, Gemini AI, and News API to power a collaborative 3-agent debate mechanism that investigates anomaly root causes, evaluates risks, and prescribes actionable future strategies in natural language.
- Formulated model horse race and walk-forward backtesting for data validation of time series CSV data.
Achievements
- Top 10 National finalist in the Natwest Code for Purpose 2026 Hackathon among 5000+ teams. [Link]
- Four consecutive times awardee of GP Birla Scholarship ($6,000+) for academic excellence.
- Achieved All India Rank 907 in Meta Hacker Cup Round 2 and Rank 1252 in Round 1. [Link]
- Solved 1400+ algorithmic problems and participated in 150+ live contests across various platforms. [Link]
- Indian Olympiad Qualifier in Mathematics (IOQM) – 2 times merit certificate holder.
- Reliance Foundation Undergraduate Scholar.
- Winner of Speedforces and Codejoust held under national annual fest BITOTSAV.
Skills
Languages
C++JavaPythonSQL
Development
GitTypeScriptReactNext.jsTailwind CSSNode.jsNestJSExpress.jsPrismaFirebaseMongoDBPostgreSQLDockerGitHub ActionsPlaywrightSocket.IO
Computer Fundamentals & Programming
Data Structures and Algorithms (DSA)Competitive ProgrammingOOPDBMSOperating SystemsComputer NetworksCompiler DesignData MiningCloud ComputingSoftware Engineering
System Design
Low Level Design