Ayush Pandey ap-dev-github

Ayush Pandey

AI Full-Stack Engineer • SaaS Builder • Performance-Cost Optimizer

Designing AI-powered efficient cloud solutions that scale massively while spending minimally

💡 Philosophy

Execution is the currency that converts ideas into value.

_{Led team to 2nd position out of 800 teams}

_{Full SDLC ownership: Idea → Production in 8 months}

_{$250/month → ~$0 idle • ~100% savings}

_{High-performance, low latency api}

🌍 Open Source Impact

🐝 Hive AI Agent Framework

^{Production framework by AdenHQ •}

+ Fixed critical Windows UnicodeEncodeError → Restored cross-platform stability
+ Investigated & debugged CI/CD failures post-DX overhaul → Filed issue, submitted fix PR
+ Resolved merge conflicts during parallel development → Improved codebase quality

Impact: Enhanced reliability for production AI agents
Collaboration: Direct work with CTO & engineering team
🔗 View PR #641

🎯 Featured Projects

🎯 versionCV – AI Resume Optimization Platform

Live Platform ↗ • MSME Registered (Govt of India) • May 2025 – Present

The Vision

Transforming professional resume management with AI-powered optimization, version control, and ATS intelligence.

Core Features Matrix

AI Resume Agent

Multi-model fallback (Gemini→GPT→Claude→Mistral)
<30s full resume rewrites
Hallucination control via xml prompting and deterministic context binding.
Token optimization for cost efficiency
Preserves links & original data accuracy

ATS Analyzer

Real-time scoring & feedback
Keyword optimization
Format compatibility checking
Layout complexity detection
Missing section identification

Custom WYSIWYG Editor

Zero-dependency WYSIWYG
React-powered
Integrated ATS scanner
Real-time formatting

Smart Management

Role-based versioning
CDN-accessible links
Clone & edit workflows
Analytics tracking per resume/role/vault

Infrastructure Architecture

┌──────────────────────────────────────────────────────────────────┐
│  EDGE LAYER (Cloudflare)                                         │
├──────────────────────────────────────────────────────────────────┤
│  Workers (Serverless Functions)                                  │
│  ├─ KV Cache ( real-time invalidation)                           │
│  ├─ D1 Database (SQLite with fallback protection)                │
│  ├─ R2 Storage (Versioned resumes, CDN delivery)                 │
│  ├─ Queue (Background processing)                                │
│  ├─ Durable Objects (Stateful coordination)                      │
│  └─ CDN (Global distribution)                                    │
├──────────────────────────────────────────────────────────────────┤
│  COMPUTE LAYER                                                   │
├──────────────────────────────────────────────────────────────────┤
│  Google Cloud Run (Containerized API)                            │
│  Vercel Edge (Next.js 14 Frontend)                               │
├──────────────────────────────────────────────────────────────────┤
│  SECURITY LAYER (Multi-layered)                                  │
├──────────────────────────────────────────────────────────────────┤
│  ✓ Firebase JWT (1ms claim verification on every request)        │
│  ✓ Email verification                                            │
│  ✓ Zero client trust model                                       │
│  ✓ Internal API isolation (no DNS, RPC-only access)              │
│  ✓ API interlocking via isolated secrets                         │
│  ✓ 4-layer rate limiting with fallback                           │
│  ✓ Strict CSP Headers                                            │
│  ✓ Multi-layer DDoS mitigation (Cloudflare + internal)           │
└──────────────────────────────────────────────────────────────────┘

📈 Performance Metrics

Metric	Achievement
⚡ Latency	`<100ms` average
🚀 Capacity	`4K+ req/sec` capable
⏱️ Uptime	`99.9%`
🔒 Auth Speed	`1ms` Full JWT verification
💰Idle Infrastructure Cost	`~$0`

Security Architecture

Request Flow with Security Layers:

User Request
    ↓
┌─────────────────────────────────────┐
│ Layer 1: CSP Headers Check          │
└─────────────────────────────────────┘
   ↓
┌─────────────────────────────────────┐
│ Layer 2: Cloudflare DDoS Protection │
└─────────────────────────────────────┘
    ↓
┌─────────────────────────────────────┐
│ Layer 3: Bot Verification           │
└─────────────────────────────────────┘
    ↓
┌─────────────────────────────────────┐
│ Layer 4: Rate Limiter (4 fallbacks) │
│  ├─ User: 2 req/s                   │
│  └─ IP: 10 req/s                    │
└─────────────────────────────────────┘
    ↓
┌─────────────────────────────────────┐
│ Layer 5: Firebase JWT Validation    │
│  └─ 1ms full claim verification     │
└─────────────────────────────────────┘
    ↓
┌─────────────────────────────────────┐
│ Layer 6: API Interlocking           │
│  └─ Isolated secrets per service    │
└─────────────────────────────────────┘
    ↓
Internal Services (No DNS exposure)

Data Strategy Details

Primary Database: Cloudflare D1 (SQLite)

Batch-based updates preventing race conditions
Fallback protection for reliability

Caching Layer: KV Cache

Real-time invalidation
Cloudflare CDN integration

Storage: Cloudflare R2

CDN-accessible resume links
Version control built-in
Instant global distribution

🔒 SwiftVault – Enterprise File Vault

Live Demo ↗ • 8-day sprint: 6 days MVP → 2 days serverless transformation

The Transformation

Before: Monolithic	After: Edge-Native Serverless
Cost: $17/month	Cost: $0/month (Year 1)
Latency: Regional delays	Latency: <50ms globally
Deployment: Single EC2 instance	Deployment: Edge distribution
Scaling: Manual intervention	Scaling: Zero-cost automatic
Idle costs: Always paying	Idle costs: None

Impact Metrics

Metric	Result
💰 Cost Reduction	`$204/year → $0` (100% Year 1) → `$108/year` (47% permanent)
⚡ Metadata Queries	`<100ms`
📤 Upload Speed	`<500ms` with edge caching
💾 Storage Savings	`30-40%` via SHA-256 deduplication
🌐 Global Latency	`<100ms` response times

Architecture Evolution

┌─────────────────────────────────────────────────────────────┐
│  BEFORE: Monolithic Stack                                   │
├─────────────────────────────────────────────────────────────┤
│  AWS EC2 (t2.micro) → PostgreSQL → Redis → MinIO            │
│  Nginx → Go Backend → JWT Auth                              │
└─────────────────────────────────────────────────────────────┘

                         ⬇️ TRANSFORMATION ⬇️

┌─────────────────────────────────────────────────────────────┐
│  AFTER: Distributed Serverless                              │
├─────────────────────────────────────────────────────────────┤
│  Cloudflare Workers (Edge Functions)                        │
│  ├─ KV Cache (Redis replacement)                            │
│  ├─ R2 Storage (MinIO replacement)                          │
│  └─ Rate Limiting (2 req/s user, 10 req/s IP)               │
│                                                             │
│  Neon PostgreSQL (Serverless)                               │
│  Vercel Edge (Next.js 14 Frontend)                          │
└─────────────────────────────────────────────────────────────┘

Technical Highlights

🔐 Security: RS256 JWT • bcrypt hashing • MIME validation • Zero-trust architecture
🧠 Smart Deduplication: SHA-256 hash-based duplicate detection
⚡ Real-time: Async uploads with live progress tracking
🎯 Advanced Search: Multi-criteria filtering with tag support
🔗 Flexible Sharing: Private + public link sharing with analytics
📊 Admin Dashboard: Comprehensive system monitoring

🔧 Tech Stack Deep Dive

Backend: Go • GraphQL • PostgreSQL • Redis • MinIO
Frontend: Next.js 14 • TypeScript • Tailwind CSS
Cloud: AWS • Vercel • Cloudflare (Workers/KV/R2) • Neon
DevOps: Docker • Nginx • SSL/TLS • GitHub Actions

Additional Projects

🔌 Atithidev DB API

Serverless REST API

Impact: Scalable hospitality data layer
Stack: AWS Lambda • DynamoDB
🔗 Live API

🧠 Sentiment Analyzer

NLP microservice

Impact: Real-time sentiment analysis
Stack: Python • AWS Lambda • NLTK
🔗 Live API

🛠️ Tech Arsenal

💻 Languages

🌐 Web & Frameworks

☁️ Cloud Platforms

🧪 Testing & Quality

🔧 DevOps & Tools

💾 Databases & Storage

📊 GitHub Activity

🤝 Let's Build Together

I'm actively seeking collaboration on:

🏗️ Distributed Systems Complex architectures at scale	💰 Cost Optimization Cloud automation & efficiency
⚡ High-Performance APIs Sub-100ms response times	🔐 Security-First Design Zero-trust architectures

Provide feedback

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