# ╔══════════════════════════════════════════════════════════╗
# ║ CLASSIFIED OPERATOR PROFILE ║
# ╚══════════════════════════════════════════════════════════╝
operator:
name : "Ishu Agrawal"
callsign : "ishu@backend"
role : "Backend Engineer // System Architect"
clearance : "PRODUCTION-GRADE"
academic:
institution : "GLA University, Mathura"
degree : "B.Tech — Computer Science (AI & ML)"
graduation : "May 2027"
cgpa : "8.47 / 10"
class_x : "95.0%"
class_xii : "86.6%"
mission:
primary : "Build scalable, fault-tolerant backend systems"
secondary : "Master system design + AI/ML integration"
dsa_progress : "500+ problems | LeetCode + CodeChef + GFG"
certifications:
- id: AZ-900
name: "Microsoft Azure AI Fundamentals"
year: 2025
issuer: "Microsoft"
- id: POSTMAN-2024
name: "API Development & Automation"
year: 2024
issuer: "Postman Student Program"
- id: AI4IN-2023
name: "AI for India 2.0"
year: 2023
issuer: "GUVI"
current_phase : "Backend → System Design → AI/ML Integration"
availability : "OPEN — Internship / Full-time"
location : "Mathura, Uttar Pradesh, India"╔══════════════════════════════════════════════════════════════════╗
║ [ SKILL PROFICIENCY MATRIX ] ║
╠══════════════════════════════════════════════════════════════════╣
║ Node.js / Express ████████████████████████░░ ADVANCED ║
║ MongoDB ███████████████████████░░░ ADVANCED ║
║ Redis / BullMQ ████████████████████░░░░░░ PROFICIENT ║
║ JWT / Auth Systems ████████████████████████░░ ADVANCED ║
║ REST API Design ████████████████████████░░ ADVANCED ║
║ JavaScript ████████████████████████░░ ADVANCED ║
║ Java (DSA) ██████████████████████░░░░ PROFICIENT ║
║ Python / Flask █████████████████░░░░░░░░░ INTERMEDIATE ║
║ React ███████████████░░░░░░░░░░░ INTERMEDIATE ║
║ System Design ████████████████░░░░░░░░░░ GROWING 🔥 ║
╚══════════════════════════════════════════════════════════════════╝
┌──────────────────────────────────────────────────────────────────┐
│ PROJECT : AuthAPI │
│ STACK : Node.js · Express.js · MongoDB · Redis · BullMQ │
│ DEPLOYED : Render [LIVE ●] │
│ TIMELINE : March 2026 │
│ RATING : ████████████████████░░ PRODUCTION-GRADE 8.4/10 │
└──────────────────────────────────────────────────────────────────┘
[ SYSTEM ARCHITECTURE ]
CLIENT REQUEST
│
▼
┌─────────────┐ ┌─────────────────────────────────────────┐
│ Express │────▶│ Middleware Pipeline │
│ Router │ │ Joi Validation → Rate Limit → Auth JWT │
└─────────────┘ └──────────────────┬──────────────────────┘
│
┌─────────────────────────▼──────────────────────┐
│ Controller Layer │
│ /auth/register /auth/login /auth/logout │
└──────┬──────────────────────────────┬──────────┘
│ │
┌───────────▼──────────┐ ┌──────────────▼────────┐
│ MongoDB (Primary) │ │ Redis (Cache+Rate) │
│ Users · Sessions │ │ Token Blacklist │
└──────────────────────┘ └──────────────┬────────┘
│
┌──────────────▼────────┐
│ BullMQ Email Queue │
│ OTP · Reset · Verify │
└───────────────────────┘
[ CAPABILITY MATRIX ]
| Module | Implementation | Status |
|---|---|---|
| 🔑 JWT Auth Core | Access + refresh token rotation, stateless multi-device sessions | ✅ LIVE |
| 🛡️ Rate Limiting | Redis-backed tiered limits — global / login / OTP endpoints | ✅ LIVE |
| 📧 Async Email Queue | BullMQ workers — fully decoupled from request lifecycle | ✅ LIVE |
| 📍 Device Tracking | IP + user-agent fingerprinting, secure cross-device logout | ✅ LIVE |
| ✅ Validation Layer | Centralized Joi schema validation + error-handling middleware | ✅ LIVE |
| 🔒 OTP System | Email verify + password reset with expiry controls + attempt limits | ✅ LIVE |
| 🧠 Session Engine | Multi-device session store, revocation on password reset | ✅ LIVE |
# ─── LIVE DEMO ────────────────────────────────────────────────
$ curl -X POST https://authapi.render.app/auth/login \
-H "Content-Type: application/json" \
-d '{ "email": "ishu@backend.io", "password": "████████████████" }'
# ─── RESPONSE ─────────────────────────────────────────────────
HTTP/1.1 200 OK
{
"accessToken" : "eyJhbGciOiJIUzI1NiIs...",
"refreshToken" : "eyJhbGciOiJIUzI1NiIs...",
"session" : { "device": "linux/chrome", "ip": "██.██.██.██" },
"rateLimit" : { "remaining": 4, "reset": "60s" }
}
┌──────────────────────────────────────────────────────────────┐
│ PROJECT : LedgerFlow │
│ STACK : Node.js · Express.js · MongoDB │
│ TIMELINE : February 2026 │
│ FOCUS : ACID Integrity · Immutable Audit Trail │
└──────────────────────────────────────────────────────────────┘
| Module | Implementation | Status |
|---|---|---|
| 🏦 Account Engine | Account mgmt, balance tracking, multi-step fund transfers | ✅ BUILT |
| ⚛️ ACID Transactions | MongoDB session-based transactions for operation consistency | ✅ BUILT |
| 📒 Immutable Ledger | DEBIT/CREDIT entry append-only design — tamper-resistant | ✅ BUILT |
| ⚡ Query Engine | Aggregation pipelines for financial reporting & summaries | ✅ BUILT |
| 🔐 Auth Layer | JWT + middleware-based role authorization | ✅ BUILT |
| 🔄 Concurrency | Edge case handling for concurrent transaction conflicts | ✅ BUILT |
TRANSACTION FLOW:
[SENDER] ──debit──▶ [LEDGER ENGINE] ──credit──▶ [RECEIVER]
│
MongoDB ACID Transaction
(atomic · consistent · isolated · durable)
│
IMMUTABLE AUDIT LOG ◀────────── stored forever
┌──────────────────────────────────────────────────────────────┐
│ PROJECT : AutoQGen │
│ STACK : Python · Flask · NLP · Google Gemini API │
│ TIMELINE : December 2025 │
│ TYPE : AI-Integrated Application │
└──────────────────────────────────────────────────────────────┘
| Module | Implementation | Status |
|---|---|---|
| 📄 Multi-format Parser | Accepts PDF, DOCX, and plain text as input sources | ✅ BUILT |
| 🧠 AI Question Engine | Google Gemini API for contextual, intelligent MCQ generation | ✅ BUILT |
| 📤 Export Pipeline | Auto-generates downloadable, formatted PDF question sets | ✅ BUILT |
INPUT [PDF/DOCX/TXT] → [NLP Pipeline] → [Gemini API] → [PDF Export]
╔══════════════════════════════════════════════════════════════════╗
║ [ ALGORITHM COMBAT RECORD — 500+ KILLS ] ║
╠══════════════════════════════════════════════════════════════════╣
║ ║
║ Arrays & Strings ████████████████████████ EXPERT ║
║ Recursion ████████████████████░░░░ ADVANCED ║
║ Trees ████████████████████░░░░ ADVANCED ║
║ Graphs ████████████████░░░░░░░░ PROFICIENT ║
║ Sorting / Search ████████████████████████ EXPERT ║
║ Dynamic Prog. ████████████░░░░░░░░░░░░ GROWING ↑ ║
║ Linked Lists ████████████████████████ EXPERT ║
║ Stacks & Queues ████████████████████████ EXPERT ║
║ ║
║ PREFERRED LANGUAGE : Java + JavaScript ║
║ FOCUS : Time/Space complexity optimization ║
╚══════════════════════════════════════════════════════════════════╝
╔══════════════════════════════════════════════════════════════════╗
║ [ VERIFIED CREDENTIALS ] ║
╠══════════════════════════════════════════════════════════════════╣
║ ║
║ [✔] Microsoft Azure AI Fundamentals (AI-900) ── 2025 ║
║ Issuer : Microsoft ║
║ Domain : Cloud AI · Cognitive Services · Azure ML ║
║ ║
║ [✔] API Development & Automation ── 2024 ║
║ Issuer : Postman Student Expert Program ║
║ Domain : REST APIs · Testing · Automation ║
║ ║
║ [✔] AI for India 2.0 ── 2023 ║
║ Issuer : GUVI ║
║ Domain : AI/ML Fundamentals ║
║ ║
╚══════════════════════════════════════════════════════════════════╝
# NEXT IN PIPELINE — ACTIVE CONSTRUCTION ZONE
phase_3_system_design:
status : "IN PROGRESS 🔨"
targets :
- Winston Logger + structured logging
- Helmet.js + CORS hardening
- Jest + Supertest integration testing
- Docker containerization
- Redis pub/sub for real-time features
phase_4_ai_ml:
status : "QUEUED 📋"
targets :
- FastAPI (Python backend)
- HuggingFace model deployment
- LangChain + RAG pipelines
- Agentic AI architecture
long_term:
- AWS deployment (EC2, S3, RDS)
- System design interviews prep
- LeetCode target: 1500+ before graduation╔══════════════════════════════════════════════════════════════╗
║ OPEN CHANNEL — CONNECTION ACCEPTED ║
╠══════════════════════════════════════════════════════════════╣
║ ║
║ 📡 Actively looking for Backend / Full-Stack roles ║
║ 📡 Open to internships, collaborations, open source ║
║ 📡 Response time: < 24 hours ║
║ ║
╚══════════════════════════════════════════════════════════════╝
