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Data Engineer - Python and Spark

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Citi

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Location:
India , Chennai

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

This is a data engineer position - a programmer responsible for the design, development implementation and maintenance of data flow channels and data processing systems that support the collection, storage, batch and real-time processing, and analysis of information in a scalable, repeatable, and secure manner in coordination with the Data & Analytics team. The overall objective is defining optimal solutions to data collection, processing, and warehousing. Must be a Spark Java development expertise in big data processing, Python and Apache spark particularly within banking & finance domain. He/She designs, codes and tests data systems and works on implementing those into the internal infrastructure.

Job Responsibility:

  • Ensuring high quality software development, with complete documentation and traceability
  • Develop and optimize scalable Spark Java-based data pipelines for processing and analyzing large scale financial data
  • Design and implement distributed computing solutions for risk modeling, pricing and regulatory compliance
  • Ensure efficient data storage and retrieval using Big Data
  • Implement best practices for spark performance tuning including partition, caching and memory management
  • Maintain high code quality through testing, CI/CD pipelines and version control (Git, Jenkins)
  • Work on batch processing frameworks for Market risk analytics
  • Promoting unit/functional testing and code inspection processes
  • Work with business stakeholders and Business Analysts to understand the requirements
  • Work with other data scientists to understand and interpret complex datasets

Requirements:

  • 5-8 Years of experience in working in data eco systems
  • 4-5 years of hands-on experience in Hadoop, Scala, Java, Spark, Hive, Kafka, Impala, Unix Scripting and other Big data frameworks
  • 3+ years of experience with relational SQL and NoSQL databases: Oracle, MongoDB, HBase
  • Strong proficiency in Python and Spark Java with knowledge of core spark concepts (RDDs, Dataframes, Spark Streaming, etc) and Scala and SQL
  • Data Integration, Migration & Large Scale ETL experience (Common ETL platforms such as PySpark/DataStage/AbInitio etc.) - ETL design & build, handling, reconciliation and normalization
  • Data Modeling experience (OLAP, OLTP, Logical/Physical Modeling, Normalization, knowledge on performance tuning)
  • Experienced in working with large and multiple datasets and data warehouses
  • Experience building and optimizing ‘big data’ data pipelines, architectures, and datasets
  • Strong analytic skills and experience working with unstructured datasets
  • Ability to effectively use complex analytical, interpretive, and problem-solving techniques
  • Experience with Confluent Kafka, Redhat JBPM, CI/CD build pipelines and toolchain – Git, BitBucket, Jira
  • Experience with external cloud platform such as OpenShift, AWS & GCP
  • Experience with container technologies (Docker, Pivotal Cloud Foundry) and supporting frameworks (Kubernetes, OpenShift, Mesos)
  • Experienced in integrating search solution with middleware & distributed messaging - Kafka
  • Highly effective interpersonal and communication skills with tech/non-tech stakeholders
  • Experienced in software development life cycle and good problem-solving skills
  • Excellent problem-solving skills and strong mathematical and analytical mindset
  • Ability to work in a fast-paced financial environment
  • Bachelor’s/University degree or equivalent experience in computer science, engineering, or similar domain

Additional Information:

Job Posted:
December 28, 2025

Employment Type:
Fulltime
Work Type:
Hybrid work
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