Sr. Java Developer (Backend)

Job Description: Senior Java Developer (Spring Boot) Experience Required: 10+ Years Location: Onsite 5 days at Pleasanton,CA Looking for: Retail experience, strong java, spring boot About the Role We are looking for a Senior Java Developer with deep expertise in Java, Spring Boot, and database technologies to join our engineering team. You will play a key role in designing, developing, and maintaining scalable, high-performance applications, while mentoring junior developers and driving technical best practices across the team. Key Responsibilities • Design, develop, and maintain robust, scalable, and high-performance backend applications using Java and Spring Boot • Architect microservices-based solutions and contribute to system design discussions • Write clean, efficient, and well-documented code following industry best practices • Design and optimize database schemas, queries, and stored procedures for performance and scalability • Collaborate with cross-functional teams including product managers, QA, DevOps, and frontend developers • Conduct code reviews and provide constructive feedback to team members • Troubleshoot, debug, and resolve complex production issues • Mentor junior and mid-level developers, fostering technical growth within the team • Participate in architectural decisions and contribute to technical roadmaps • Ensure application security, scalability, and reliability standards are met • Stay current with emerging technologies and recommend improvements to existing systems • Contribute to CI/CD pipeline improvements and DevOps practices Required Skills & Qualifications • 10+ years of professional experience in Java development • Strong hands-on experience with Spring Boot, Spring Framework (Spring MVC, Spring Data, Spring Security) • Proven experience designing and building microservices architecture • Strong expertise in relational databases (e.g., MySQL, PostgreSQL, Oracle) — schema design, query optimization, indexing • Experience with NoSQL databases (e.g., MongoDB, Redis, Cassandra) is a plus • Solid understanding of RESTful API design and development • Experience with ORM frameworks (Hibernate/JPA) • Proficiency in build tools (Maven/Gradle) and version control (Git) • Experience with unit testing frameworks (JUnit, Mockito) and TDD practices • Familiarity with containerization and orchestration (Docker, Kubernetes) • Experience with message queuing systems (Kafka, RabbitMQ, or similar) is a plus • Understanding of cloud platforms (AWS, Azure, or GCP) • Strong knowledge of design patterns, SOLID principles, and clean code practices • Experience with CI/CD tools (Jenkins, GitLab CI, or similar) • Excellent problem-solving, analytical, and communication skills • Bachelor's or Master's degree in Computer Science, Engineering, or related field (or equivalent practical experience) Preferred Qualifications • Experience with event-driven architecture • Exposure to Agile/Scrum methodologies • Prior experience in a technical leadership or mentorship role • Knowledge of performance tuning and application monitoring tools (e.g., New Relic, Datadog, Splunk) • Experience working in a fast-paced, cross-functional product environment