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Core Java Developer Jobs in Jersey City, NJ (NOW HIRING)

CYNET SYSTEMS

Core Java Developer

New York, NY · On-site

$45 - $50/hr

Well-versed in Core Java (1.8 and above preferable, with knowledge of new features like Executor framework, Generics, etc.). * Experience in collections, HashMap, concurrency packages and ArrayList ...

Sonsoft Inc

Core Java Developer

Weehawken, NJ · On-site

Preferred At least 4 years of experience working on Core Java/Spring . Atleast 4 years of experience with TDD based development and re-engineering of existing application to incorporate unit tests ...

Zortech Solutions

Core Java Developer

Jersey City, NJ · On-site

W2 Candidates only Must: 5+ years development experience, Strong Java Fundamentals Spring Boot / Microservices Heavy API and integration work needed Oracle database, AWS Agile environment CI/CD ...

BC Forward

Core Java - Intermediate

Jersey City, NJ · On-site

$61 - $64/hr

Core Java Developer Location: Jersey City, NJ Duration: Contract to hire, 6+ months Pay Range: $61-$64/hr (W2) About BCforward BCforward is a leading global IT consulting and workforce solutions firm ...

Sarian, Inc.

Java Developer

Manhattan, NY · On-site

$56.25 - $72.75/hr

Core Java Developer having experience working with cloud migration projects. * Strong Core Java Developer with Azure/AWS experience. * Working experience with Key Vault (HashiCorp / Azure / AWS)

USM

Urgent Need: Core Java Developer

New York, NY · On-site

Core JAVA DEVELOPER Only locals to NY/NJ/CT Need locals only who can come for F2F Duration : 12 months + Min exp : 9 years - Strong Core Java (worked with concurrency package, multi threading ...

Snowrelic Inc

Sr. Core Java Developer

New York, NY · On-site

$62.75 - $79.75/hr

We are seeking a highly experienced Senior Core Java Software Engineer with over 12 years of deep expertise in core Java development, particularly in multi-threaded, real-time systems. The ideal ...

Sidram Technologies

Java Developer

Englewood Cliffs, NJ · On-site

$52 - $67.25/hr

Englewood Cliffs, NJ ( Onsite interview) Skills - Core Java, Spring, GraphQL and json * Strong in core Java and Spring * Spring boot, microservices, RESTAPI * GraphQL * good communication skills ...

PamTen Inc

Java Developer

Englewood, NJ · On-site

$53.50 - $69.25/hr

PamTen Inc is seeking a Java Developer for a contract position ... The role requires strong skills in core Java and Spring, along with experience in Graphql, Python ...

Info-Ways

Core Java

New York, NY

Core Java Location: NJ/NYC Duration: Fulltime BGV will be done for the selected candidates ... Looking for Java Lead with the following skills- RX Java exp o Asynchronous event based programming ...

Apex Informatics

Java Developer

Manhattan, NY · On-site

$56.25 - $72.75/hr

JS Data Analytics tools: google analytics, looker studio Proficient in Core Java development skills ... programming languages Working proficiency in a portion of software engineering disciplines and ...

Sarian, Inc.

Sr. Java Developer

Manhattan, NY · On-site

$63 - $80.50/hr

Core Java 8 or higher programming language experience is a must-have. If you have experience with both Java and C# it is a big plus. * Solid analytical skills and strong technical or engineering ...

MM International

Java/Big Data Developer

New York, NY · On-site

$55.75 - $72.25/hr

Java/Big Data Developer Location: NYC, NY, 2 Bryant Park 3 step iv process 1 hour virtual coding ... CORE Java SPRING BIG DATA- STORM/SPARK/SCALA KAFKA Financial Experience Regulatory data and ...

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All JobsCore Java Developer JobsCore Java Developer Jobs in Jersey City, NJ

Core Java Developer information

See Jersey City, NJ salary details

$43

$65

$89

How much do core java developer jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for core java developer in Jersey City, NJ is $65.54, according to ZipRecruiter salary data. Most workers in this role earn between $55.19 and $73.61 per hour, depending on experience, location, and employer.

What is a Core Java developer?

Core Java Developers are software professionals who specialize in building applications using the core features of the Java programming language, without relying on advanced frameworks or enterprise libraries. They are responsible for designing, coding, testing, and maintaining Java applications, often focusing on fundamental concepts like object-oriented programming, data structures, algorithms, and multithreading. Core Java Developers are integral to many industries, as Java is widely used for desktop, server-side, and embedded systems development.

What is a Java core developer?

A core Java developer is an expert in Java SE and its related technologies. This job requires extensive knowledge of and experience with all Java class libraries. As a Java core developer, your duties involve using Java and other programming languages and tools to develop applications, software, games, and more for computers and mobile devices. Many Java developers earn a bachelor’s degree in computer science or a related field. Professional Java certification is available. Additional qualifications include strong analytical, communication, and mathematical skills. You must be able to solve technical complex problems, both alone and as part of a team.

What are the key skills and qualifications needed to thrive as a Core Java developer?

To thrive as a Core Java Developer, you need a strong grasp of Java programming, object-oriented design, data structures, and algorithms, typically supported by a degree in computer science or related field. Familiarity with development tools such as Eclipse or IntelliJ IDEA, build tools like Maven or Gradle, and version control systems such as Git is essential. Problem-solving abilities, attention to detail, and strong communication skills help developers excel in collaborative and fast-paced environments. These skills ensure the efficient creation, maintenance, and optimization of robust software solutions that meet business needs.

What are some common challenges faced by Core Java developers in large-scale enterprise projects?

Core Java Developers working on large-scale enterprise projects often face challenges such as maintaining code quality across complex, legacy codebases, optimizing application performance under heavy loads, and ensuring seamless integration with various databases and third-party systems. Collaboration with cross-functional teams, such as QA, DevOps, and front-end developers, is crucial to address these challenges. Adapting to evolving business requirements and keeping up with new Java features and frameworks also requires continuous learning and adaptability.

What is the difference between Core Java Developer vs Java Software Engineer?

AspectCore Java DeveloperJava Software Engineer
Required CredentialsBachelor's in Computer Science, Java certificationsBachelor's in Computer Science, Java certifications
Work EnvironmentBackend development, enterprise applicationsApplication development, software solutions
Industry UsageFinancial, healthcare, retail sectorsTech companies, software firms
Common Search IntentCore Java skills, Java development rolesJava programming, software engineering roles

Core Java Developers focus primarily on building and maintaining backend applications using core Java technologies, while Java Software Engineers often work on broader software solutions, including design and integration. Both roles require similar credentials and are used across various industries, but their scope and responsibilities may differ slightly.

Are Core Java Developers still in demand?

Core Java Developers remain in demand due to the continued use of Java in enterprise applications, Android development, and backend systems. Skills in Java SE, frameworks like Spring, and familiarity with cloud environments enhance employability in this field.

Can I get a job with core Java?

Core Java is a fundamental skill for Java developer roles, and proficiency in it can help you secure entry-level and experienced positions in software development. Employers often look for knowledge of Java SE, object-oriented programming, and related tools like IDEs and version control systems. Building a strong understanding of core Java concepts increases your chances of getting a job in the field.
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Core Java Developer jobs near you
Infographic showing various Core Java Developer job openings in Jersey City, NJ as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 15% Part Time, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $136,323 per year, or $65.5 per hour.

Core Java Developer

CYNET SYSTEMS

New York, NY • On-site

$45 - $50/hr

Contractor

Re-posted yesterday

Job description

Job Overview:

Pay Range: $45hr - $50hr

Requirement/Must Have:

  • Strong experience in real-time, low-latency multi-threaded server-side application development.
  • Well-versed in Core Java (1.8 and above preferable, with knowledge of new features like Executor framework, Generics, etc.).
  • Experience in collections, HashMap, concurrency packages and ArrayList, sorting algorithm.
  • Proficiency in Database Management Systems (SQL Server/Sybase/Oracle) and designing/querying.
  • Fair knowledge of J2EE, web frameworks - Spring and web services.
 

Founded in 2010 and headquartered in the Washington, DC metro area, Cynet Systems Inc. is a leading staffing and recruiting powerhouse. Proudly recognized as a nationally and locally certified diversity firm, Cynet delivers agile, scalable talent solutions across industries. With an active footprint in all 50 U.S. states and Canada, we support thousands of consultants through our expansive, high-performing recruitment engine operating across North America and Asia—ensuring speed, quality, and consistency in every hire.
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About Cynet Systems

Sourced by ZipRecruiter

Cynet Systems Inc is a staffing and recruiting corporation nestled in Ashburn, VA, USA. Established in 2010, the company operates within the Information Technology and Services sector, specializing in providing effective workforce solutions to different business needs, including IT consulting, direct hire, and contract staffing services. Through the years, Cynet Systems has built an impressive portfolio, going beyond borders and expanding its operations internationally in Canada and India. Rooted in its core values of teamwork, leadership, and commitment, Cynet Systems helps businesses unlock their full potential by providing versatile and competent professionals that perfectly align with their needs. Fueled by their unwavering mission to deliver top-tier talent to businesses worldwide, Cynet Systems garnered various recognitions including SIA's fastest-growing staffing firms and Best Place to Work in Virginia for 2019.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Sterling, VA, US

Year founded

2010

Social media

Twitter

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