Muhammad Danish K.

15+ years architecting cloud-native, AI-powered platforms — $300K+ delivered across 33 engagements and 10,900+ hours on Upwork, with a 100% Job Success Score.

Recent work: a 100+ module enterprise ERP (Vue 3, PHP, Elixir) with telephony and payments, a document-intelligence platform with pixel-perfect PDF parsing and pgvector RAG, production LLM and agentic AI products, computer vision/OCR pipelines, and a distributed security-scanning platform integrating 18+ scan types across vulnerability assessment and OSINT.

💻 FRONTEND
Next.js 15, React.js, Vue 3, React Native, TypeScript, Tailwind CSS, Material UI, ShadcnUI, ChakraUI, Zustand, React Query, Zod, Tanstack Table

⚡ BACKEND & APIS
Node.js, NestJS, Express.js, Python, FastAPI, PHP (Laravel), Elixir, Hono, tRPC, oRPC

🗄️ DATABASES
PostgreSQL (+pgvector), MySQL, MariaDB, MSSQL, MongoDB, Neo4j, DynamoDB, Aurora, Oracle, Elasticsearch, Redis; Prisma, Drizzle ORM

☁️ CLOUD & DEVOPS
AWS (Lambda, ECS, EC2, S3, RDS/Aurora, DynamoDB, API Gateway, CloudFront, Cognito, Step Functions, SQS/SNS, CloudFormation, IAM), GCP, Azure, Docker, CI/CD, GitHub Actions, Vercel, Supabase

🏗️ ARCHITECTURE & INFRA
Microservices, Serverless, CQRS, WebSockets, Background Jobs, Cron Jobs, Kafka, RabbitMQ, BullMQ, Multi-tenant SaaS

🤖 AI & AUTOMATION
LLM integrations (OpenAI, Anthropic), RAG & document intelligence — PDF-to-database pipelines with pixel-perfect layout preservation, word-level querying, pgvector semantic retrieval, automated Q&A generation. Agentic & tool-calling workflows, computer vision & image recognition, OCR & document data extraction, text analysis/NLP, Remotion (video), Trigger.dev, Inngest

🔐 CYBERSECURITY & SECURITY AUTOMATION
Distributed scan orchestration, vulnerability assessment (Nmap, Nuclei, OpenVAS, Hydra, testssl.sh), OSINT & recon (Shodan, IntelX, Dehashed), attack-surface management, subdomain takeover detection, automated security workflows

🔗 INTEGRATIONS & PAYMENTS
Stripe, PayPal, Authorize.Net, CyberSource, Apple Pay, Google Pay, Paddle, Lemon Squeezy, PayloadCMS, Strapi, Shopify, WooCommerce

🌐 INDUSTRIES
EdTech, FinTech & Loan/Credit Systems, Healthcare, eCommerce, Cybersecurity, Scheduling, Sports, Travel, News, Advertising

I deliver scalable backends, real-time systems, AI-powered platforms, secure infrastructure, and maintainable full-stack solutions built for speed, reliability, and enterprise-grade performance.