# Rajveer Singh, résumé (CV)

> I build AI products end to end: the interface, the backend, and the infrastructure that keeps them running. The PDF: https://rajveers.com/resume.pdf

## Work Experience

### IABTM · Full Stack Engineer Intern Remote · Sep 2025 – Present

Re-architected production media infrastructure to S3 + CloudFront. Containerized Node.js services on EC2 and engineered a CI/CD pipeline via GitHub Actions, reducing release cycles to under 15 minutes and cutting storage costs by 40%.

Engineered a real-time group chat/voice layer (Socket.IO, Mediasoup SFU) with sub-200ms latency, and designed an autonomous GenAI editorial pipeline publishing 30+ curated stories daily with zero manual review.

Built a parallel chunked S3 upload service, lifting success rates to 99.4%, and integrated Shopify Storefront GraphQL & Resend for seamless webhooks, checkout flows, and lifecycle email campaigns.

### Modulus · Full Stack Developer Intern Remote · Apr 2025 – Aug 2025

Designed and built the product UI from scratch using React/TypeScript, creating a reusable design system with audience-aware UX decisions that powers 4+ surfaces; supported user-growth trajectory to 1,275+ MAUs.

Integrated 30+ REST endpoints and reduced critical page load by 66% (3.2s to 1.1s) via route-based code splitting and list virtualization, achieving 95+ Lighthouse scores and instrumenting full-funnel PostHog analytics.

Shipped Razorpay (payments) and Cal.com (scheduling) integrations end-to-end with idempotent webhook handlers, successfully processing Rs. 10.8K in platform transactions at 99.9% uptime.

## Technical Skills

Language&Frontend: TypeScript, JavaScript, Python, SQL, React, Next.js, Recoil, Tailwind CSS, Framer Motion, Plasmo

Backend: Node.js, Express.js, GraphQL, REST APIs, WebSockets (Socket.IO), Mediasoup, Microservices, BullMQ, Jest

Databases & AI: PostgreSQL, MongoDB, Redis, RAG, Qdrant

Cloud & DevOps: AWS (EC2, S3, CloudFront, ECS, Bedrock), Docker, GitHub Actions (CI/CD), PM2, Nginx, Puppeteer

## Projects

### Safire (Safe DM) · MERN, TypeScript, Plasmo, RAG, Gemini, Redis, Docker, Puppeteer GitHub · Live Demo

Architected a real-time LLM harassment detector with RAG (Gemini API), fronted by a React/TypeScript Chrome extension leveraging session-aware state management for inline content alerts.

Built a Dockerized Node.js/Express microservice backend with a custom load balancer and Redis read-through cache, drastically cutting average detection latency by 60% (480ms → 190ms).

Automated tamper-proof evidence reporting via Puppeteer, generating cryptographically verifiable PDFs of harassment instances stored securely on Cloudinary with 100% data integrity.

### HyperPersona · Node.js, TypeScript, Drizzle, PostgreSQL, Qdrant, Redis, BullMQ, Gemini, AWS ECS/Bedrock GitHub

Architected an agentic recommendation engine as service in a 24-hour sprint with a 4-person team; built a 3-plane microservice backend in Node.js + TypeScript with PostgreSQL as system of record, Qdrant for 3,072-dim vector memory, and Redis-backed BullMQ for async embedding workers.

Implemented an Agentic Cognitive Architecture (ACE) with Chain-of-Verification RAG over Gemini 2.5 Flash, deployed on AWS ECS/ECR with Amazon Bedrock + Strands Agents; selected as Top 0.1% Finalist at Technoverse 2.0.

### 10xAnswers · React, Recoil, TypeScript, Node.js, Express, Gemini GitHub · NPM

Shipped a reusable React AI chatbot SDK on NPM with 3,200+ downloads, engineering zero-config integration via Recoil to deliver 100% context retention across multi-turn conversations.

Built an Express inference proxy bridging the Gemini API with retry logic and graceful timeouts, sustaining 99.5% uptime and 120ms p50 response latency under high platform load.

## Achievements & Leadership

Impact: Shipped 5+ full-stack products across internships and OSS, serving 5,000+ end users and 3,200+ NPM downloads; architected GenAI features and AWS infrastructure in production.

Hackathons: Winner of 4 national-level hackathons including Code Kshetra 2.0 (15,000+ participants); Finalist at 4 others including Technoverse 2.0 (22,000+ participants).

Open Source & Leadership: Top 35 mentor in GSSoC; 16+ PRs to high-impact OSS (cms/100xDevs); Vice Chairperson, Web Dev at IEEE MSIT - branch of IEEE, the world's largest technical society (400K+ members, 160+ countries).

## Education

Maharaja Surajmal Institute of Technology (GGSIPU) Delhi, India Bachelor of Technology in Electronics & Communication Engineering 2023 – 2027

CGPA: 8.68 / 10.0