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Junior Java Engineer Jobs in New Jersey (NOW HIRING)

Java Spark Engineer

Berkeley Heights, NJ · On-site

$54 - $74/hr

Java Spark Engineer Location: Berkeley Heights, NJ (5 days onsite -- flexibility to support ... Mentor mid-level and junior engineers; act as technical escalation point * Partner with product ...

New

Senior Java Developer

Camden, NJ · On-site

$145K - $165K/yr

Mentor junior developers and contribute to a culture of technical excellence within your scrum team ... Java monoliths and microservices with Spring and Hibernate. * Infrastructure as Code using ...

Java Full Stack Developer

Jersey City, NJ · On-site

$54.75 - $70.75/hr

Role: Java Full Stack Developer Work Location: Columbus, OH | Jersey City, NJ (Day 1 On-Site ... Mentor junior developers. * Ensure adherence to security and coding standards. * Collaborate with ...

AVP Senior Java Developer

Rutherford, NJ · On-site

$58.25 - $74.50/hr

Senior Java developer is responsible for participation in the establishment and implementation of ... Provide technical leadership and guidance to junior Dev engineers. * Mentor team members on best ...

Java Spark Engineer

Berkeley Heights, NJ · On-site

$54 - $74/hr

... junior engineers; act as a technical escalation point • Partner with product, analytics, and ... Java development experience • 5+ years hands-on experience with Apache Spark in production ...

Entry Level Java Developer

Iselin, NJ · On-site

$60K - $80K/yr

W2 and Fulltime (No C2C) We are seeking an Junior Level Java Developer with 3-4 years of experience. Qualifications: * Previous experience in software development, computer engineering, or other ...

We are seeking a seasoned Java Lead Developer with extensive banking domain experience to lead the ... Review code, mentor junior team members, and promote adherence to development standards.

Showing results 21-40

Junior Java Engineer information

What are the most commonly searched types of Java Engineer jobs in New Jersey? The most popular types of Java Engineer jobs in New Jersey are:
What cities in New Jersey are hiring for Junior Java Engineer jobs? Cities in New Jersey with the most Junior Java Engineer job openings:
Infographic showing various Junior Java Engineer job openings in New Jersey as of June 2026, with employment types broken down into 96% Full Time, 3% Part Time, and 1% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution.

Java Spark Engineer

Inficare Technologies

Berkeley Heights, NJ • On-site

$65/hr

Full-time

Posted 22 hours ago

Posted today


Job description

Job Title: Java Spark Engineer
Location: Berkeley Heights, NJ (5 days onsite - flexibility to support weekends)
Job Type: Contract
Experience: 7+ years Java development; 5+ years Apache Spark in production
Job Overview
Key Responsibilities
  • Architect and build scalable, fault-tolerant data pipelines using Apache Spark (Java)
  • Drive performance tuning: partitioning strategy, memory management, shuffle/skew optimization
  • Mentor mid-level and junior engineers; act as technical escalation point
  • Partner with product, analytics, and platform teams to translate requirements into scalable systems
  • Own production reliability - incident response and root-cause analysis for pipeline failures
  • Contribute to capacity planning and cost optimization for cluster infrastructure
Required Skills
  • 7+ years professional Java development experience
  • 5+ years hands-on Apache Spark in production environments
  • Expert-level distributed systems knowledge: fault tolerance, data locality, shuffle mechanics, resource management
  • Proven track record designing systems at terabyte+ scale
  • Strong SQL and deep familiarity with columnar storage formats: Parquet, ORC, Avro, Delta Lake/Iceberg
  • Experience with cluster managers: YARN, Kubernetes, cloud-managed Spark
  • Proficiency with Apache Kafka
  • Strong grasp of CI/CD, containerization, and infrastructure-as-code practices
Preferred Skills
  • Experience with Apache 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
Location & Work Model
Berkeley Heights, NJ - fully onsite, 5 days per week. Candidates must be flexible to support weekend operations when needed.
Engagement Details
5 openings available. Contract engagement. Bachelor's or Master's degree in Computer Science, Engineering, or related field required.