Senior Java Developer

About Company, Droisys is an innovation technology company focused on helping companies accelerate their digital initiatives from strategy and planning through execution. We leverage deep technical expertise, Agile methodologies, and data-driven intelligence to modernize systems of engagement and simplify human/tech interaction. Amazing things happen when we work in environments where everyone feels a true sense of belonging and when candidates have the requisite skills and opportunities to succeed. At Droisys, we invest in our talent and support career growth, and we are always on the lookout for amazing talent who can contribute to our growth by delivering top results for our clients. Join us to challenge yourself and accomplish work that matters. Here's the job details, Senior Java Developer Gurugram, Haryana / Noida, Uttar Pradesh-Onsite About the Role We?re seeking a passionate Senior Java Developer to join our dynamic and innovative team, working on a cutting-edge product that pushes the boundaries of technology. You?ll collaborate with a cross-functional, self-organizing team that values autonomy, agility, and continuous improvement . In this role, you?ll work closely with development leads, product managers, and stakeholders to deliver high-quality, scalable, and reliable software solutions that drive real business impact. Key Responsibilities Collaborate within an agile team to design, develop, and maintain high-performance Java applications. Translate complex business requirements and user stories into efficient technical solutions. Write clean, efficient, testable, and maintainable code using best practices. Develop and maintain RESTful APIs and microservices using Spring Boot . Participate in code reviews , refactoring, and design discussions to ensure software quality. Implement unit, integration, and system tests to ensure reliability and performance. Provide Level 3 production support and troubleshoot critical issues when needed. Contribute to technical documentation and team knowledge-sharing. Collaborate effectively with onshore and offshore teams in a global environment. Required Skills & Experience 6+ years of hands-on experience in Java development. Strong proficiency in Java 17 and object-oriented programming principles. Deep understanding of Spring Boot , REST APIs , microservices architecture , and WebSockets . Solid knowledge of unit testing , code refactoring , and software design patterns . Experience with build and CI/CD tools : Maven, Git, Jenkins. Hands-on experience with Apache Kafka , Zookeeper , and PostgreSQL . Familiarity with Hibernate ORM , YAML configuration , and API documentation tools (e.g., Swagger/OpenAPI). Excellent problem-solving , analytical , and communication skills. Preferred / Nice-to-Have Skills Experience with Docker , Kubernetes , and cloud environments (AWS/Azure/GCP). Knowledge of Reactive Programming (Project Reactor, RxJava). Familiarity with CI/CD pipelines and DevOps principles . Understanding of security practices , OAuth2 , and JWT . Exposure to performance tuning and distributed system design . Droisys is an equal opportunity employer. We do not discriminate based on race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. Droisys believes in diversity, inclusion, and belonging, and we are committed to fostering a diverse work environment.