Java Spark Engineer

Primary Responsibilities

•  Architect and build scalable, fault-tolerant data pipelines using Apache Spark (Java)

•  Lead design of batch and streaming ETL/ELT systems handling large data volumes

•  Deep-dive performance tuning: partitioning strategy, memory management, shuffle/skew optimization, job cost reduction

•  Set coding standards and lead code/design reviews across the team

•  Drive technical decisions on data architecture, storage formats, and pipeline orchestration

•  Mentor mid-level and junior engineers; act as a technical escalation point

•  Partner with product, analytics, and platform teams to translate requirements into scalable systems

•  Own production reliability — on-call ownership, incident response, root-cause analysis for pipeline failures

•  Evaluate and introduce new tools/frameworks where they improve the system

•  Contribute to capacity planning and cost optimization for cluster infrastructure

Required Qualifications

•  Bachelor’s or Master’s degree in Computer Science, Engineering, or related field

• 7+ years of professional Java development experience

• 5+ years hands-on experience with Apache Spark in production environments

•  Expert-level understanding of distributed systems: fault tolerance, data locality, shuffle mechanics, resource management

•  Proven track record designing systems processing terabyte+ scale data

•  Strong SQL skills and deep familiarity with columnar storage formats (Parquet, ORC, Avro, Delta Lake/Iceberg)

•  Experience with cluster managers (YARN, Kubernetes) and cloud-managed Spark

•  Proficiency with Kafka

•  Strong grasp of CI/CD, containerization, and infrastructure-as-code practices

Preferred Qualifications

•  Experience with Flink or other stream-processing frameworks

•  Familiarity with data governance, lineage, and quality frameworks

•  Experience with workflow orchestration at scale 

•  Background in system design for multi-tenant or multi-region data platforms

•  Prior experience leading a team or acting as a technical lead