Adarsh A.

Senior Full Stack Developer | React.js | Node.js | Java | Spring Boot | SaaS & Enterprise Solutions I'm a Senior Full Stack Developer with 5+ years of experience building scalable, secure, and high-performance web applications for startups, SMEs, and enterprise clients. With $70K+ in earnings, a 100% Job Success Score, and Top Rated Plus status on Upwork, I focus on delivering reliable, production-ready solutions and building long-term client relationships. I have extensive experience developing SaaS platforms, CRM/ERP systems, healthcare applications, logistics and transportation platforms, hotel booking systems, eCommerce solutions, order management systems, admin dashboards, and custom business applications. Whether it's building a product from scratch or extending an existing platform, I take ownership of the entire development lifecycle—from planning and architecture to deployment and ongoing support. Core Technologies Frontend: React.js, Next.js, Angular, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS, Bootstrap, Material UI Backend: Node.js, NestJS, Express.js, Java, Spring Boot, Laravel, PHP Databases: PostgreSQL, MySQL, MongoDB, Firebase Cloud & DevOps: AWS, Docker, Git, GitHub, CI/CD Integrations: REST APIs, Swagger/OpenAPI, JWT Authentication, OAuth, Payment Gateways (Stripe, PayPal), Firebase, Google Maps APIs, OpenAI APIs, and other third-party services My approach is simple: write clean, maintainable, and scalable code while keeping communication transparent and delivering on time. I enjoy solving complex business challenges, improving existing systems, optimizing application performance, and building software that is reliable, secure, and easy to maintain. I don't just develop features—I contribute to technical decisions, recommend practical solutions, and help businesses build products that are ready for real users and long-term growth. If you're looking for a dependable Full Stack Developer who can quickly understand your requirements, take ownership of your project, and deliver high-quality results, I'd be happy to discuss how I can help bring your ideas to life.