Obydul Islam Khan S.

I am a Senior Frontend & Full-Stack Software Engineer with 6+ years of experience building scalable, high-performance web and mobile applications for global clients. Currently working at IdeaScale, I lead development of an agentic AI chatbot powered by RAG pipelines and internal tool integrations, enabling secure enterprise-grade knowledge retrieval and write operations . I also designed and built a high-performance React-based superuser application from scratch and contributed to advanced collaborative whiteboard systems using React-Konva and WebSockets . Previously, I’ve delivered large-scale React, Vue, and React Native applications across industries including SaaS, travel, fintech, and digital signage. My work has improved application performance by up to 90%, optimized UX, and enabled real-time multi-user systems . **Core Expertise:** * React.js, Next.js, TypeScript * React Native (iOS & Android deployment lifecycle) * RAG pipelines, LangChain4j, AI tool integrations * WebSockets, real-time systems * Redux, RTK, Redux-Saga * Accessibility compliance (Axe, WAVE) * Micro-frontend architecture * API integrations & performance optimization I focus on writing clean, scalable, and maintainable code, collaborating effectively with product and UX teams, and delivering production-ready solutions that meet business goals. If you’re looking for a developer who understands architecture, performance, AI integrations, and user experience — let’s build something impactful.