
Next.js 16 Authentication: Secure Login, JWT, Sessions and Protected Routes
Learn how to implement secure authentication in Next.js 16 with login, sessions, protected routes, authorization, password hashing, JWT concepts, and best practices.


Crafting modern web experiences with Next.js, React, Laravel, Node.js, and modern web technologies.
Passionate full-stack developer dedicated to building innovative web solutions that combine beautiful design with powerful functionality.
I'm Harsh Thummar, a dedicated full-stack software engineer and UI/UX architecture specialist with over 3 years of hands-on industry experience crafting high-impact digital applications. Currently serving as a Software Engineer at Metizsoft Solutions, I specialize in architecting performant front-end user interfaces, robust backend APIs, and scalable database schemas.
My technical philosophy centers on building digital products that balance clean code modularity, rapid load speeds, and intuitive user experiences. Having spearheaded full-stack developments across enterprise job portals like VettedPool and personal finance analytics suites like HSFIN, I bring deep end-to-end domain knowledge across modern JavaScript and PHP ecosystems.
I specialize in Next.js 16, React 19, TypeScript, Laravel, Node.js, Express, and MongoDB Atlas. Whether engineering multi-tenant web application dashboards, tuning server-side rendering performance, or optimizing RESTful API data flow, I am driven by technical precision, continuous learning, and clean software architecture.
Beyond daily coding, I am passionate about technical writing, SEO architecture, responsive interface design, and exploring emergent Web3 and cloud infrastructure technologies to solve complex client problems.
A timeline of my professional experience, key projects, and achievements in the tech industry.
Building and shipping full-stack features for client web applications, working across the frontend, API layer, and database with a cross-functional product team.
Developed and maintained client-facing JavaScript and React interfaces, focusing on responsive layouts and reliable API integration.
Six-month internship building user-facing React components, with a focus on mobile-first responsive design.
A comprehensive overview of the modern technologies, frameworks, and engineering tools I use to build scalable full-stack web applications, performant REST APIs, and multi-tenant platforms.
My engineering stack focuses on developer productivity, code reliability, and user experience. From type-safe frontend architecture with Next.js 16, React 19, and TypeScript 5.9 to secure server infrastructure with Node.js, Express, Laravel, MongoDB, and MySQL, each tool is chosen to deliver fast, maintainable, and SEO-friendly software.
React Framework
UI Library
Type Safety
Runtime
Database
Containerization
Continuously learning and adapting to new technologies to stay at the forefront of web development. Always exploring the latest tools and best practices.
Have a new web project, technical challenge, or custom software solution in mind? I am available for full-stack engineering contracts, frontend UI development, custom REST API design, and long-term software consulting.
Whether you need a modern web application built from scratch with Next.js and Tailwind CSS, a robust backend API powered by Laravel or Node.js, database schema optimization with MongoDB or MySQL, or a technical audit to improve site performance and SEO, feel free to reach out via the form below or through direct social channels.
Explore my latest technical guides and deep dives into React, Next.js, Node.js, REST API security, and Web Performance.