Jobs · Information Technology · Illinois

Senior Data Engineer

Haystack · Chicago, IL · 2 mo ago
HybridInformation TechnologyFull-time

About the role

Design, build, and maintain scalable batch and streaming data pipelines using Apache Spark and cloud-native data technologies.

  • Develop and optimize ETL/ELT workflows to ingest, transform, and curate data from diverse source systems into analytics-ready datasets
  • Implement data modeling and transformation logic to support reporting, dashboards, and downstream analytical and machine learning workloads
  • Build and manage data processing workloads within modern lakehouse platforms
  • Ensure data quality, reliability, and consistency by implementing validation checks, monitoring, and reconciliation processes
  • Optimize Spark jobs for performance, cost efficiency, and scalability across large and complex datasets

Requirements

  • Strong experience as a Data Engineer building and operating production data pipelines
  • Hands-on experience with Apache Spark for large-scale data processing
  • Proficiency in Python, SQL, and data transformation best practices
  • Experience with cloud-based data platforms and storage (e.g., Data Lakes, Lakehouse architectures)
  • Familiarity with Microsoft Fabric, OneLake, or similar analytics platforms (strong plus)
  • Experience designing and optimizing data models for analytical workloads

Benefits

  • Opportunity to work on scalable, reliable, and high-performing data pipelines
  • Collaborative environment with analytics engineers, data scientists, and product teams
  • Contribute to Agile delivery processes

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