Senior Staff Engineer - Backend & Data Engineering

📋 Description

• Lead architecture and development of cloud data infrastructure supporting real-time health
• Own the health operations dashboard platform—design real-time data aggregation, time-series
• Design and operate scalable data pipelines on Amazon EMR (Apache Spark/Scala) orchestrated with
• Architect and operate production Apache Cassandra clusters for operational data and time-series
• Design streaming pipelines on Amazon Kinesis and Apache Flink for real-time health event
• Own end-to-end data quality, schema governance, retention policies, and observability across

🎯 Requirements

• 6-10 years hands-on backend engineering with deep expertise in Java, Spring, and Spring Boot
• Production experience with Apache Cassandra: data modeling, consistency tuning, compaction
• Strong Apache Spark and Scala experience for distributed batch processing; proven ability to run
• Experience with streaming systems (Apache Flink or Kinesis): stream joins, windowing, aggregations
• Strong PostgreSQL background and understanding of polyglot data architectures
• Experience with AWS data services: S3, EMR, RDS, Glue, Kinesis, SQS, IAM, CloudWatch