About the role

Aplyr's Quick Take

This role is for a Senior Java Spark Developer focused on building and optimizing scalable data processing systems. You'll be coding, troubleshooting, and mentoring while collaborating with various teams to deliver high-quality solutions. It's primarily an individual contributor position with some leadership aspects in mentoring.

Good fit

Ideal candidates have over 7 years of experience in Java and Apache Spark, with a strong grasp of object-oriented programming and distributed systems. A collaborative mindset and a passion for clean coding and mentoring junior developers will help you thrive here.

Worth noting

The role emphasizes not just technical skills but also a culture of craftsmanship and continuous improvement. Familiarity with AI solutions and experience in Agile environments are preferred, which could be a plus for those looking to innovate.

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.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

Skills & Tags

java

Aplyr's read

Citigroup is a global financial services leader offering diverse roles, attracting professionals in finance, technology, and operations seeking international exposure and advancement.
Synthesized from recent postings & public sources

What's promising

•Citigroup's global presence offers employees opportunities for international career advancement.
•The company invests heavily in technology, providing roles for tech-savvy professionals.
•Citigroup's diverse services allow for career growth across multiple financial sectors.

What to watch

•Citigroup has faced regulatory challenges impacting its operations and reputation.
•The company's size can lead to bureaucratic processes that slow decision-making.
•Citigroup's restructuring efforts may create uncertainty in job stability.

Why Citigroup

•Citigroup's extensive global network differentiates it from many competitors.
•The firm's commitment to innovation is evident in its technology-driven roles.
•Citigroup offers specialized roles requiring language skills, such as Japanese-speaking positions.

Aplyr’s read is generated by AI from public sources. Was it useful?

About Citigroup

Citigroup

citi.com

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Citi, also known as Citigroup Inc., is a global financial services corporation that provides a wide range of financial products and services to consumers, corporations, governments, and institutions.