Rohail B.

I build backend systems that scale — and increasingly, AI features that make products smarter. I'm Rohail, a backend-focused full-stack engineer with 6+ years of experience, currently deep in both production infrastructure and applied AI/LLM engineering. Recent work you can ask me about: Built a review-scraping platform spanning 6+ OTAs (Google, Booking, TripAdvisor, Expedia, Airbnb, Agoda) with proxy rotation, retry logic, and data-quality checks Delivered 8+ PMS integrations (Mews, Apaleo, Oracle Hospitality, Cloudbeds, and others) — reservation sync, guest matching, resilient auth Shipped AI visibility features that track brand presence across ChatGPT, Claude, Gemini, and Perplexity Built and deployed MCP (Model Context Protocol) server infrastructure on AWS (ECS Fargate, Secrets Manager, read-only DB access) for safer AI-to-database integration Hands-on with RAG pipelines, LangChain orchestration, fine-tuned classification models, and structured outputs Core stack: Node.js · NestJS · Express · React · Angular · PostgreSQL · MongoDB · Docker · AWS · GCP · Microservices AI stack: LangChain · RAG · Vector Search · MCP · Structured Outputs (Zod) How I work: I take ownership of the full lifecycle — architecture, implementation, deployment, and the unglamorous parts (data quality, security, credential lifecycle) that keep systems reliable once they're in production. I communicate in plain terms, flag risks early, and don't disappear between milestones. If you're building: A backend system that needs to scale (APIs, microservices, integrations) An AI/LLM feature (RAG, chatbots, AI-search visibility, agentic workflows) Both — since that's increasingly the same problem Send me a message with what you're building and I'll respond with specific thoughts, not a template reply.