Job Title:Java developer with Spark
Location: Berkley Heights, NJ
Duration: 12+ Months
Bill Rate: $180k
Job Type: W-2 Contract
Client: To Be Discussed Later
Work Authorization:
USC
GC
H-1B
OPT-EAD
GC-EAD
-EAD
Job Summary
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
Soft Skills / Leadership
Excellent communication able to explain technical tradeoffs to non-technical stakeholders
Strong mentorship and coaching ability
Comfortable driving ambiguous, cross-team technical initiatives
Note: We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.
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