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haroon nafees

@haroonnafees

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Lead Full-Stack & AI Engineer at Cntxt AI, building multilingual voice AI and RAG systems for learning content.

Pakistan

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At Cntxt AI, I built a multilingual voice AI pipeline that detects English, Arabic, and German and routes responses in the matching language. I also integrated Qdrant retrieval and document parsing to power AI-driven learning content.

At Hollyoud Ventures, I led cross-functional delivery and built a React Native mobile app from scratch. I also led production disaster recovery after an AWS outage, restoring the database and S3 assets across multi-region failover with an RTO under two hours.

At Disrupt.com, I implemented a LangChain RAG pipeline over an ERP knowledge base, reducing support tickets by 70% and cutting search time from two hours to ten minutes. I also built AI-assisted workflow automation connecting more than 1,000 third-party integrations.

Earlier, at Squatwolf, I built component-based interfaces and improved performance on an international eCommerce platform. At TCSECOM and Grappetite, I developed customer-facing web applications and a canvas-based medical image editing tool.

Experience

Work history, roles, and key accomplishments

Current

Lead Full-Stack & AI Engineer

Current

Cntxt AI

Jul 2026 - Present (3 months)

Built multilingual voice AI pipeline using OpenAI Whisper and FastAPI, implemented LLM guardrails, integrated Qdrant vector database for RAG, and developed bilingual mobile UI with RTL support. Acted as primary technical counterpart to founding client, translating business ambiguity into architecture decisions and delivery sequence.

Whisper fastAPI Guardrails AI Qdrant RAG Docling OCR React Native TypeScript NestJS JWT RBAC Multi Tenant Environments REST APIs

Lead Full-Stack & AI Engineer

Hollyoud Ventures

Nov 2025 - Jun 2026 (7 months)

Led cross-functional delivery team, mentored engineers on agentic coding workflows, built cross-platform mobile app with React Native, architected RBAC module, led disaster recovery after AWS outage, and improved Lighthouse performance from 40 to 80.

React Native NodeJS Next.js Mongoose RBAC AWS WebSockets React Tailwind Redux toolkit Claude Code Augment Code MCP Context Engineering

Lead AI & Full-Stack Engineer

Disrupt.com

Apr 2019 - Oct 2025 (6 years 6 months)

Implemented LangChain RAG pipeline over ERP knowledge base, championed AI coding tools, architected AI-driven workflow automation, and designed ERP modules for operations, marketing, and HR teams.

Lang Chain RAG NodeJS ExpressJS React MySQL OpenAI API EC2 React Flow Pipedream JWT Authentication

Senior Frontend Developer

Squatwolf

Jan 2019 - Dec 2020 (1 year 11 months)

Built component-based UI architecture using Next.js, TypeScript, and Tailwind CSS for high-traffic eCommerce platform serving 120+ countries. Achieved Lighthouse scores above 90 through performance optimizations.

Next.js TypeScript Tailwind SSR Caching Performance Optimization Lighthouse

Frontend Developer

TCSECOM

Aug 2017 - Apr 2019 (1 year 8 months)

Built customer-facing web applications using React.js, Angular, Ionic, HTML5, and jQuery for diverse client verticals. Integrated Google Maps, Google Sheets, YouTube, and Facebook APIs.