Job Description

We are looking for a Senior Java Spark Developer who is passionate about coding, building scalable systems, and driving engineering excellence to support the transformation and modernization of Citi’s data processing platforms.

This role is ideal for someone who takes pride in writing clean, efficient, high-quality code, enjoys solving complex distributed data problems, and is motivated to build robust, scalable, and maintainable systems. You will play a key role in translating business requirements into production-grade solutions, while continuously improving platform performance, reliability, and development practices.

Responsibilities:

• Design and develop scalable, high-performance applications using Java and Apache Spark
• Translate business requirements into clean, efficient, and reliable technical solutions
• Write modular, testable, and maintainable code following OOP principles and design patterns
• Continuously refactor and optimize applications for performance, scalability, and maintainability
• Troubleshoot and resolve complex data processing and performance issues
• Perform and participate in code reviews, promoting engineering best practices
• Collaborate with architects, product owners, DevOps, and Agile teams for high-quality delivery
• Mentor junior developers and contribute to a culture of craftsmanship and continuous improvement

Qualifications:

• 7+ years of hands-on experience in Java and Apache Spark / Big Data development
• Strong foundation in object-oriented programming, design patterns, and clean coding practices
• Proven experience building and optimizing large-scale distributed data processing systems
• Experience with REST APIs, RDBMS, and Kafka or similar messaging systems
• Exposure to microservices and containerization (Docker/Kubernetes) is preferred
• Experience in Databricks is preferred
• Familiarity with or interest in AI-powered solutions / AI agents is a plus
• Experience working in Agile environments with strong collaboration and ownership mindset

Education:

• Bachelor’s degree/University degree or equivalent experience

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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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