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Ujjal Kumar

@ujjal_kumar_dutta

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Java Full Stack Developer specializing in Spring Boot, React.js and scalable web applications.

India

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What I'm looking for

I seek a role where I can contribute to building scalable web applications, work in an Agile team, deepen backend and full-stack skills, and take on API and performance optimization challenges.

I am a results-driven Java Full Stack Developer with hands-on experience building scalable web applications using Spring Boot, React.js, JPA and MySQL, and a strong focus on secure RESTful APIs and responsive frontends.

During my internship I developed a full-stack voting application serving 200+ users, engineered RESTful APIs that improved client–server communication by 30%, and optimized database operations to reduce query response time by 25% while collaborating in an Agile team.

I deliver clean, modular code, implement JWT-based authentication for role-based access, and continuously improve performance through refactoring and best practices to increase scalability and reliability.

Experience

Work history, roles, and key accomplishments

Java Developer Intern

InternsTech

Sep 2024 - Jan 2025 (4 months)

Developed a full-stack voting application using Spring Boot and React.js for 200+ users, engineered RESTful APIs that improved client–server efficiency by 30% and optimized database queries to reduce response time by 25%.