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Alltech Consulting Services, Inc.

Spark Developer

Pay: Not specified

Posted: 2 days ago

Location: Berkeley Heights, NJ (Onsite)

Last Updated: 1 hour ago

Hours: Full-Time

Expires: 10/16/2026

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What they do

A Software Developer or Engineer designs or improves computer software. Oversees the entire software development process. Analyzes customer or user needs, designs programs, writes code or instructs computer programmers, tests design, and documents programs. May assist with upgrades or maintenance. May specialize in the design of computer applications or computer systems.

$122,008 / year median in New Jersey

-3% projected decline

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Job Description

Job Title:

Java Spark Developer Location:

: Berkeley Heights NJ(ONSITE)

CONTRACT ONLY W2 JOB DESCRIPTION

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

Behavioral Skills:

Good Communication skills 5 days Work from Office at Berkley Heights, NJ Team Player Ability to work in a changing environment Strong problem solving and analytical skills Ability to work independently or within a team Manage day-to-day challenges and communicate developmental risks with the technical team