Kalim Ullah Khan

Senior Front-end Engineer at Inception AI (G42)

Board Observer AI-powered Meetings App: built a real-time meetings platform with audio/video, attendee tracking, and calendar sync. Implemented AI-assisted features using RAG-backed Q&A, context-aware insights, and memory-enabled chat assistant. Improved performance via virtualization and integrated Python FastAPI/ChatGPT-4 backend.

Software Engineer Level 2 at Priceline

Delivered an AI-powered Chat Assistant for Priceline's Booking Holds (Fortune 500). Tech Stack included React.js, Next.js, Node.js, Fastify, Redux, Redux-Thunk, Context API, and GPT-4 integration within Rush Monorepo. Designed and implemented an intelligent document-scanning workflow using a Retrieval-Augmented Generation (RAG) framework to extract information from vast internal knowledge bases. Built real-time document scanning to process and analyze user-uploaded files with streaming responses. Leveraged GPT-4 for contextual insights and actionable recommendations, enhancing the chat assistant with contextual memory and multi-turn conversations. Delivered a scalable backend using Python FastAPI with GPT-4 integration.

Software Engineer at Axion IOIT Services Pvt Ltd

Senior Front-end lead for MIBL- POSP (Salespersons onboarding and management platform). Led a 6-member Front-end team, coordinating with 4 business partners to deliver an Admin portal for 1000+ salespersons and product owners. Leveraged React, Redux, and Redux-Thunk for robust state management; implemented frictionless payments and subscription flows via Stripe. Built a scalable Front-end architecture using React-Bootstrap and Sass, ensuring cross-device/browser compatibility. Applied Atomic Design principles to create modular UI and RESTful services; debugged and optimized performance to meet metrics. Demonstrated expertise in debugging and troubleshooting, improving overall performance.

Application Engineer at Raw Engineering Inc

Inseego.com project work: Worked on React and JavaScript-based sites, including Gatsby.js and GraphQL. Translated intricate designs into polished code and created diverse components and reusable templates for rapid development. Enhanced CMS data integration and refined CMS schema, aggregating crucial data. Brought client visions to life through functional, high-quality websites.

Trainee Application Engineer at Raw Engineering Inc

Learned and implemented React and JavaScript to create websites with Gatsby and GraphQL. Translated design concepts into polished code, building reusable components and templates for rapid development. Gained experience with CMS data integration and bringing client visions to life through functional websites.

Senior Frontend Engineer at Pango Education

Led frontend foundation for an AI-powered education wallet app and built AI-assisted teacher workflows (lesson plans, knowledge checks, assignments, math practice). Optimized performance by reducing bundle size ~30% and improving load times ~25% via dependency optimization and architectural refactoring. Established analytics to track feature adoption and inform AI tutoring workflows.

Senior Software Engineer at Inception AI (G42), Dubai

Board Observer – an AI-powered meetings app. Implemented features with Next.js, Vercel AI SDK, Python FastAPI, and ChatGPT-4. Built auto meeting summarizer generating concise AI summaries from transcripts, enabled live document sharing with per-page AI insights, and integrated a RAG-powered contextual Q&A assistant. Optimized chat performance using React Window and collaborated with backend to surface real-time data.

Software Engineer Level 2 at Booking Holdings (Price Line)

Delivered RAG-powered interfaces surfacing contextual policy and itinerary data, improving factual accuracy and reducing agent-assisted query time. Collaborated with backend teams to integrate AI-assisted features and maintained robust UI components.

Software Engineer at Axion IO IT Services Pvt Ltd

Developed a scalable CRM/UI architecture including modular UI components and Remix-based apps. Integrated with Facebook CRM (Kusto CRM) and implemented robust input sanitization (DOMPurify) to ensure security. Enabled live data streaming and SEO-friendly rendering with server-side updates.

Software Engineer at Mahindra Insurance Brokers Limited - POSP

Led frontend work for onboarding portals, integrating OCR APIs and Stripe payments to automate KYC and onboarding workflows. Focused on delivering seamless user experience and policy administration tooling.

Application Engineer at Raw Engineering Inc

Built 100+ responsive, WCA/GAA accessibility-compliant pages using React.js, Next.js, Gatsby, GraphQL, and CMS integration. Implemented SSR/SSG to optimize delivery and SEO performance.

Senior Frontend Engineer / Tech Lead at Pango Education (AI-powered Education Company Widget App)

Led architecture rewrite of the AI-powered education widget app, defined scalability strategy, and enabled curriculum-aligned AI feature expansion. Established modern frontend foundation (Vite, React, TypeScript), defined project standards and governance, and built AI-assisted teacher companion workflows (lesson plans, knowledge checks, assignments, math practice) to boost teacher productivity. Reduced bundle size by ~30% and improved load performance by ~25% through dependency optimization and architectural refactoring (validated using New Relic metrics). Leveraged analytics to track feature adoption and optimize AI tutoring workflows.

Software Engineer Level 2 at Booking Holdings

Real-time AI-powered travel assistant Penny built with React.js, Next.js, and Vercel AI SDK, featuring live booking management, refunds, cancellations, itinerary changes, and travel support via natural chat. Integrated Server-Sent Events for live updates and delivered RAG-powered interfaces surface contextual policy and itinerary data, reducing LLМ hallucinations. Contributed to a 65% reduction in agent-assisted queries and a 45% decrease in average support resolution time, driving over $12M+ in annual cost savings. Also worked on micro frontend Customer Service Apps (C3 Assistant) using React.js, Remix.js, TypeScript, GraphQL and Styled Components, improving agent workflows and security.