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Job Overview Senior Java Developer

We are seeking a highly skilled and experienced Senior Java Developer to join our team. The ideal candidate will be responsible for developing robust Java backend services for our data platform, focusing on data distribution and caching for various applications. This role involves maintaining and enhancing the existing platform, leveraging technologies like Kubernetes and Docker, and demonstrating a strong understanding of multithreading and security best practices.

Responsibilities:

• Design, develop, and implement high-performance Java backend services for the data platform, focusing on efficient data distribution using Kafka and advanced caching mechanisms utilizing technologies like Apache Ignite, VMware GemFire, or similar in-memory data grids.
• Maintain, enhance, and optimize existing Java services and the data platform, ensuring scalability, reliability, and low latency.
• Implement solutions using containerization technologies such as Docker and orchestration with Kubernetes.
• Apply advanced multithreading techniques to develop highly concurrent and responsive applications.
• Ensure the security of applications and data by implementing secure coding practices and adhering to security standards.
• Collaborate with architects, product managers, and other developers to understand requirements and translate them into technical solutions.
• Participate in the entire software development lifecycle, including requirements gathering, design, coding, testing, deployment, and support.
• Conduct code reviews to ensure code quality, maintainability, and adherence to best practices.
• Provide L3 support for production issues, including root cause analysis and timely resolution.
• Participate in a rotational schedule for lower environment support, ensuring smooth operations and stability.
• Troubleshoot and resolve complex technical issues, including performance bottlenecks and security vulnerabilities.
• Write clear and comprehensive technical documentation.

Required Skills and Qualifications:

• Experience: 7+ years of professional experience in Java development.
• Java Core: Strong proficiency in Java and its ecosystem, with a deep understanding of object-oriented programming, design patterns, and data structures.
• Backend Services: Extensive experience in developing and deploying scalable and high-performance backend services.
• Data Distribution/Caching: Proven experience with data distribution technologies like Kafka and in-memory data grids/caching solutions such as Apache Ignite, VMware GemFire, or similar.
• Database Technologies: Strong understanding and hands-on experience with relational databases (e.g., PostgreSQL, Oracle, SQL Server) and/or NoSQL databases (e.g., MongoDB, Cassandra).
• Kubernetes & Docker: Hands-on experience with Docker for containerization and Kubernetes for container orchestration and deployment.
• Multithreading: Expert-level knowledge and practical experience with Java multithreading and concurrency concepts.
• Security: Strong understanding of application security principles, secure coding practices, and experience implementing security measures.
• Unit Testing: Experience with unit testing frameworks and practices (e.g., JUnit, Mockito).
• Troubleshooting & Support: Excellent problem-solving skills with a strong ability to provide L3 support and troubleshoot complex production issues.
• Communication: Excellent verbal and written communication skills, with the ability to articulate technical concepts to various stakeholders.
• Teamwork: Ability to work effectively in an agile, collaborative team environment.

Preferred Qualifications:

• Experience with OpenShift cloud platform.
• Familiarity with CI/CD pipelines and DevOps practices.
• Knowledge of other messaging queues.
• Background in financial services or a related high-throughput data environment.

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Job Family Group: Technology

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Job Family:Applications Development

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Time Type:Full time

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Most Relevant Skills Please see the requirements listed above.

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Other Relevant Skills For complementary skills, please see above and/or contact the recruiter.

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Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

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