Nitish K.

Hi, I'm Nitish Kumar, a Senior Full Stack Developer and Solution Architect with 10+ years of experience in web development, eCommerce, APIs, authentication, and custom business applications. Over the years, I have worked with startups, businesses, and development teams to build new applications, improve existing systems, solve complex technical problems, and integrate different platforms and services. I have a strong background in PHP and eCommerce development, and I also work with modern technologies like Node.js, TypeScript, React, PostgreSQL, and AWS. One of my key areas of expertise is Authentication and Identity Management using Auth0, including SSO, OAuth 2.0, JWT, API authorization, user management, and secure application integrations. ## What I Can Help You With • Full Stack Web Development • Solution Architecture and Technical Planning • Node.js and Express.js Backend Development • Laravel and PHP Development • React.js Frontend Development • JavaScript and TypeScript • REST API Development and Integration • Authentication and Authorization • Auth0 Integration and Implementation • Single Sign-On (SSO) • OAuth 2.0 and JWT • Database Design with PostgreSQL and MySQL • Third-party API Integration • Application Performance Optimization • Bug Fixing and Existing Application Improvements • Long-term Support and Maintenance ## Solution Architecture I can help you not only with development but also with planning and designing the technical solution. This includes: • Understanding business and technical requirements • Designing application architecture • Designing scalable backend APIs • Authentication and authorization architecture • Database design and data modelling • Third-party service integrations • Technology selection • Improving existing application architecture • Performance and scalability improvements • Security considerations and best practices I believe in keeping solutions practical and maintainable. I don't like adding unnecessary complexity when a simpler solution can solve the problem. ## Auth0 and Identity Management I have strong experience working with Auth0 and modern authentication systems. My experience includes: • Auth0 Integration • Single Sign-On (SSO) • OAuth 2.0 and OpenID Connect • JWT Authentication • API Authorization • Role-Based Access Control (RBAC) • Multi-tenant Applications and Organizations • Social Login • Machine-to-Machine Authentication • Custom Authentication Flows • User Management • Secure API and Application Integration ## Backend and Full Stack Development My main development stack includes: • Node.js • Express.js • TypeScript • JavaScript • React.js • Laravel • PHP • PostgreSQL • MySQL • REST APIs • Sequelize • Git and GitHub • Docker • AWS I enjoy working on backend architecture, APIs, authentication, database design, and integrations, but I am also comfortable working across the full application stack. ## E-Commerce Experience I have extensive experience working with eCommerce platforms and custom eCommerce solutions. Platforms and technologies I have worked with: • Magento 1 and Magento 2 • Shopify • BigCommerce • WooCommerce • WordPress • Akeneo PIM • Laravel My eCommerce experience includes: • Custom Development • Theme Development and Customization • Extension and Plugin Development • API Integration • Payment Gateway Integration • Product Import and Export • Akeneo Integration • Multi-vendor Marketplaces • Product and Inventory Management • Performance Optimization • Bug Fixing • Support and Maintenance ## Server and Deployment Experience I also have experience with application deployment and server management. • Linux Servers • Apache • Nginx • VPS and Dedicated Servers • PHP FastCGI • Redis • Memcached • Varnish Cache • Server Configuration • Server Security • Remote Server Administration • Application Deployment I have worked on different types of projects including eCommerce websites, custom web applications, booking systems, membership platforms, business applications, utility platforms, social applications, and healthcare-related systems. With 10+ years of development experience, I understand that writing code is only one part of building a successful application. Understanding the business requirement, choosing the right approach, writing maintainable code, and communicating properly are equally important. I can work as an individual contributor, collaborate with an existing development team, or help plan and implement a complete technical solution from the beginning. If you are looking for someone who can understand your requirements, suggest the right technical approach, and also implement the solution, I would be happy to discuss your project. I am available for both short-term and long-term projects and believe in clear communication, clean code, regular updates, and building long-term working relationships. Regards, Nitish Kumar