This role is for one of Weekday’s clients Min Experience: 9+ years Location: Hyderabad JobType: full-time We are looking for an experienced Java Full Stack Developer with strong expertise in Java-based backend development and React.js frontend development to join our engineering team in Hyderabad. The ideal candidate will have 9–15 years of experience designing, developing, and maintaining scalable, high-performance web applications. This role requires a strong understanding of full-stack architecture, hands-on programming skills, and the ability to lead technical discussions while collaborating with cross-functional teams. The successful candidate will be responsible for developing robust backend services, building responsive user interfaces, integrating APIs, and ensuring the overall quality, performance, and security of enterprise-grade applications. Requirements Key Responsibilities • Design, develop, test, and maintain scalable web applications using Java and React.js. • Build robust backend services, RESTful APIs, and microservices using Java and relevant frameworks such as Spring Boot and Spring MVC. • Develop dynamic, responsive, and user-friendly frontend applications using React.js, JavaScript, HTML5, and CSS3. • Integrate frontend components with backend services, APIs, and databases to deliver seamless application functionality. • Apply object-oriented programming principles, design patterns, and software engineering best practices to build maintainable solutions. • Work with relational and NoSQL databases, including database design, query optimization, and performance tuning. • Participate in architecture discussions, technical design reviews, and decisions related to application scalability and maintainability. • Write clean, reusable, well-documented code and develop unit and integration tests to ensure application reliability. • Identify and resolve complex technical issues, troubleshoot production defects, and optimize application performance. • Collaborate with product managers, business analysts, QA engineers, DevOps teams, and other stakeholders to deliver projects on time. • Participate in Agile ceremonies, sprint planning, code reviews, and continuous improvement initiatives. • Mentor junior developers, share technical knowledge, and contribute to coding standards and development best practices. • Ensure application security, reliability, scalability, and compliance with established engineering standards. Must-Have Skills • Java: Strong hands-on experience in Core Java, object-oriented programming, collections, multithreading, exception handling, and modern Java features. • React.js: Proficiency in building reusable components, managing state, handling hooks, and developing responsive user interfaces. • Strong experience in backend development using Spring Boot, Spring MVC, and RESTful APIs. • Good understanding of full-stack application architecture and frontend-backend integration. • Experience working with SQL databases, data structures, algorithms, and performance optimization. • Proficiency in Git, debugging, unit testing, and Agile development methodologies. • Strong problem-solving, communication, and technical leadership skills. Preferred Qualifications • Experience with microservices architecture and distributed systems. • Familiarity with CI/CD pipelines, Docker, Kubernetes, and cloud platforms such as AWS or Azure. • Knowledge of application security, automated testing frameworks, and performance monitoring tools. Candidate Requirements • 9–15 years of relevant experience in full-stack software development. • Strong expertise in both Java and React.js. • Candidates must be based in or willing to work from Hyderabad. • Candidates should be available to join within 30 days, with 45 days as the maximum acceptable notice period.