Nija K.

I’m a Senior Software Engineer and Tech Lead with 5+ years of experience building scalable web applications, SaaS platforms, and AI-powered products for international clients. My core expertise includes React.js, Next.js, TypeScript, Node.js, REST APIs, GraphQL, PostgreSQL, MongoDB, and modern UI frameworks. I specialize in building scalable frontend architectures, reusable component libraries, Microfrontend applications, and high-performance web experiences. I also have hands-on experience integrating AI into production applications using OpenAI and Gemini APIs, including AI chatbots, prompt engineering, and LLM-powered features. I’ve also worked extensively with Stripe payments, subscriptions, webhooks, ZATCA e-invoicing, cloud deployment, and CI/CD. Here’s what I can help you with: • React.js / Next.js web application development • Full-stack SaaS development • AI integration & AI chatbot development • Node.js / TypeScript backend development • REST API & GraphQL development • Microfrontend architecture • Tailwind CSS, Material UI & shadcn/ui • Stripe payments & subscription systems • Third-party API integrations • Performance optimization • Cloud deployment & CI/CD • Bug fixing, refactoring & feature development I take ownership of projects from development to deployment and focus on writing clean, maintainable, scalable code. If you have an existing application that needs improvement or a new product you want to build, I’d be happy to help turn your idea into a reliable, production-ready solution.