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Big Data Engineer - (Scala | Spark | Databricks | Cloud)

Today 2026/08/29
Other Business Support Services
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Job description

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.


Job Overview

We are seeking a talented and experienced Big Data Hadoop Developer to join our growing data engineering team. The ideal candidate will have 4-6 years of hands-on experience designing, developing, and optimizing big data solutions using the Hadoop ecosystem, with a strong focus on Apache Spark. You will be responsible for building and maintaining scalable data pipelines, processing large datasets, and collaborating with data scientists and analysts to deliver insights.
Responsibilities:


  • Design, develop, and maintain robust and scalable ETL processes and data pipelines using Apache Hadoop and Apache Spark.
  • Write efficient, clear, and well-documented code primarily in Scala, Python, or PySpark for big data processing.
  • Implement data ingestion, transformation, and loading routines from various sources into Hadoop Distributed File System (HDFS) and other big data stores.
  • Optimize existing Spark jobs and Hadoop ecosystem components for performance and scalability.
  • Collaborate with data architects, data scientists, and other stakeholders to understand data requirements and translate them into technical solutions.
  • Ensure data quality, integrity, and security across all big data platforms.
  • Participate in code reviews, testing, and deployment of big data applications.
  • Troubleshoot and resolve issues in big data environments.
  • Stay up-to-date with the latest trends and technologies in the big data ecosystem.


Qualifications:


  • Bachelor's or Master's degree in Computer Science, Engineering, or a related quantitative field.
  • 3-4 years of professional experience in Big Data development.
  • Proven experience with the Hadoop ecosystem, including HDFS, YARN, Hive, and other related technologies.
  • Hands on experience in SQL and shell scripting
  • Strong expertise in Apache Spark for data processing and analysis.
  • Proficiency in at least one of the following programming languages: Scala, Python, or PySpark.
  • Experience with building and optimizing large-scale data pipelines.
  • Familiarity with data warehousing concepts and ETL methodologies.
  • Solid understanding of distributed computing principles.
  • Excellent problem-solving skills and attention to detail.
  • Ability to work independently and as part of a collaborative team.

Preferred Qualifications:


  • Experience with cloud-based big data services (e.g., AWS EMR, Azure HDInsight, Google Cloud Dataproc).
  • Experience with Databricks platform.
  • Knowledge of other big data tools like Kafka, HBase, Flink, or Presto.
  • Experience with SQL and NoSQL databases.
  • Familiarity with CI/CD practices and tools (e.g., Git, Jenkins).
  • Understanding of machine learning concepts and how they apply to big data.


Education:


  • Bachelor’s degree/University degree or equivalent experience


This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.


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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.



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