Full Stack Software Engineer at Freelance / Contractor

Responsible for development, maintenance, and optimization of multiple consumer-facing websites using React/Redux, Next.js, AngularJS for frontend and Node.js, Express.js, NestJS, and Python (Flask, FastAPI) for backend. Built scalable backend systems and RESTful APIs with OAuth 2-based authentication and optimized PostgreSQL queries. Implemented testing strategies with Jest, PyTest, and Husky; collaborated with UI/UX designers, product managers, and QA to deliver features on tight deadlines while maintaining quality and security. Maintained servers and databases (MongoDB, PostgreSQL, MySQL) and data pipelines; designed scheduled jobs and backups; integrated APIs with frontend data communication; mentored junior developers and contributed to code reviews and best practices. Delivered end-to-end solutions across multiple client projects focusing on scalability, maintainability, and robust security. Used Git for version control and collaborated via Jira; deployed on cloud-based workflows