Ujjan Joshi

Backend Developer

Self Employed • Freelance

Aug 2023 - Present • 3 yrs

I am a Backend Developer with 3+ years of professional experience building reliable and scalable backend applications, REST APIs, and database-driven systems. Throughout my experience, I have worked on projects using Node.js, Express.js, NestJS, TypeScript, Laravel, and PHP. I have developed backend systems for web applications, management platforms, SaaS products, and business solutions. My experience includes designing and developing REST APIs, implementing authentication and role-based authorization, designing database structures, integrating third-party services, and building payment systems using platforms such as Stripe and Razorpay. I have worked with PostgreSQL, MySQL, MongoDB, Redis, and SQL Server, and have experience with asynchronous processing and distributed systems using Kafka and Redis. I also use Docker and AWS services for application development, storage, email, and deployment workflows. As a freelance Backend Developer, I have helped clients build new backend systems, extend existing applications, integrate external APIs, fix backend issues, and improve application functionality. My focus is on writing clean, secure, maintainable, and scalable code while understanding the client's business requirements and delivering practical solutions. Key areas of experience: • Node.js, Express.js, NestJS, and TypeScript • Laravel and PHP backend development • REST API development and integration • Authentication and authorization • PostgreSQL, MySQL, MongoDB, and SQL Server • Stripe and Razorpay payment integration • Redis and Kafka-based systems • Docker and AWS • Webhooks and third-party API integrations • Backend debugging and bug fixing I enjoy solving complex backend problems and helping businesses turn their ideas into reliable software solutions.