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Core Java Jobs (NOW HIRING)

Serigor Inc.

Core Java Developer

New York, NY · On-site

Core Java Developer Location: New York City, NY Duration: Fulltime The Client is seeking a technically oriented individual to join the Securities Finance technology team. Primary focus on this role ...

Jobsbridge

Core Java Developer

Palo Alto, CA · On-site

Company Description Intelliswift Software, Inc Need senior core java developer Java, multi-threading, algorithms, data structures, automation must be good in Linux, vmware Qualifications Java, multi ...

HSSSoft

Core Java Developer

Herndon, VA

We do have a job opening for the position Core Java developer @ VA. Position with one of our clients. Please go through the mentioned below and if you find it interesting then send me an updated copy ...

Marencor

Core Java Developer

New York, NY · On-site

Core Java Developer Location: NYC, NY Candidate Details 7+ to 10 years experience Seniority Level - Mid-Senior Management Experience Required - No Minimum Education - Bachelor's Degree Ideal ...

Arka Infotech Inc

Core Java Developer

Wilmington, DE · On-site

Core Java Developer Location: Wilmington, DE Length: 2 years F2F REQUIRED - LOCAL ONLY Visa copy required for submission - 7+ years of development experience with Java/J2EE - Strong experience with ...

Global IT Family

Core Java Developer

Los Angeles, CA · On-site

Role: Core Java Developer (5 Positions) Location: Los Angeles, CA OR Englewood, CO Full-Time Role Interview Process: Two Technical Rounds Description: We are looking for 5 years experienced ...

USM

Senior Core Java Developer

Boston, MA

Senior Core Java Developer Location: Boston, MA, 2116 Duration: 6-12 months Interview: Phone and Skype OR F2F Required Skills: Core Java, Postgress Preferred Skills: Big Data Other Skills: AWS Akka ...

INTELLISWIFT INC

Core Java Engineer

Phoenix, AZ

Core Java Engineer Location: Phoenix, AZ Duration: Fulltime Description: Same opening as before. Java Engineer not Developer. Want to see J2EE experience with good backend, no front end types.

Deegit Inc

Need Core Java Developer

Sunnyvale, CA · On-site

We do have an urgent Position for Core Java Developer at CA . Please find the requirement below for your review Role: Core Java Developer Location: Sunnyvale, CA Duration: 6+ Months 6+ years of IT ...

BayOne Solutions

Core Java Developer

San Francisco, CA · On-site

Responsibilities: Our Client is looking for Core Java Engineers with strong Data Structure, Algorithms, Multi-threading, Concurrency, experience. Additional Information All your information will be ...

Atria Group LLC

Core Java developer

Cupertino, CA · On-site

Expertise in Core Java with knowledge of multithreading, concurrency, memory management and NIO. Should have extensive experience in using concurrent package * Expertise in Enterprise Java or any ...

Genesis10

Core Java Developer

Jersey City, NJ · On-site

Genesis10 is currently seeking a Core Java Developer for a contract position with a Global Financial Institution located in Jersey City, NJ. In this role, you will work closely with business partners ...

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How much do core java jobs pay per hour?

As of Jul 11, 2026, the average hourly pay for core java in the United States is $59.92, according to ZipRecruiter salary data. Most workers in this role earn between $50.48 and $67.31 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Core Java Developer, and why are they important?

To thrive as a Core Java Developer, you need strong proficiency in Java programming, object-oriented principles, data structures, and a relevant degree in computer science or a related field. Familiarity with tools such as Eclipse or IntelliJ IDEA, version control systems like Git, and frameworks like Spring is typically required, along with certifications such as Oracle Certified Professional Java Programmer (OCPJP) being advantageous. Excellent problem-solving abilities, attention to detail, and effective communication skills help set standout developers apart. These skills ensure robust, maintainable code and efficient collaboration within software development teams.

What are Core Java developers?

Core Java developers are software professionals who specialize in building applications using the fundamental features and libraries of the Java programming language. They focus on core concepts such as object-oriented programming, data structures, multithreading, exception handling, and the Java API. Core Java is the foundation for other Java technologies like Java EE, and developers in this role often create desktop, server-side, or foundational components of larger systems. Their expertise is critical in ensuring robust, scalable, and maintainable Java applications.

What is the difference between Core Java vs Java Developer?

AspectCore JavaJava Developer
FocusFundamental Java programming, core APIs, basic application developmentBuilding, testing, and maintaining Java applications, including web and enterprise solutions
SkillsJava syntax, OOP principles, basic APIsCore Java, frameworks (Spring, Hibernate), web technologies
Work EnvironmentLearning and understanding Java fundamentalsDeveloping full applications, debugging, deployment

Core Java refers to the fundamental Java programming language and its core APIs, essential for understanding Java basics. Java Developer, on the other hand, applies these fundamentals to develop complete applications, often using frameworks and additional tools. While Core Java is foundational, Java Developers build on this knowledge to create real-world software solutions.

What are some typical challenges Core Java developers face when working on large-scale enterprise applications?

Core Java developers working on large-scale enterprise applications often encounter challenges such as managing complex codebases, ensuring thread safety in concurrent environments, and optimizing application performance. They may also need to integrate with legacy systems and maintain code readability for long-term support. Collaborating effectively with cross-functional teams, including QA, DevOps, and business analysts, is essential to meet project goals and maintain high software quality.
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CORE Java jobs near you
Core Java Developer

Core Java Developer

Serigor Inc.

New York, NY • On-site

Full-time

Re-posted 10 days ago

Job description

Job Title: Core Java Developer

Location: New York City, NY

Duration: Fulltime

Job Description:

The Client is seeking a technically oriented individual to join the Securities Finance technology team. Primary focus on this role would be to design, develop, and support a brand-new initiative (Arranged Financing) buildout for securities Finance team. The individual will also be involved in minor enhancements to the current Securities Finance platform. This role is based in NY, and team require the candidate to be onsite 3 days a week with no exceptions.

Key Responsibilities & Tasks:

  • This role entails hands-on coding responsibilities in Java and related frameworks.
  • Develop, test, and maintain multiple Securities Finance foundation and functional products.
  • Working closely with technology leads to Implement functional components for the project that contribute to the Sec Fin product suite.
  • Work closely with the business stakeholders for Arranged Financing product rollouts and partake in user support. Contribute to the DevOps stream as a part of the product buildout and adhere to the CI/CD protocols.
  • Maintain and enhance support documentation.

Qualifications/ Experience:

  • 6-12 years of coding experience in core Java, Spring framework and messaging framework
  • Experience building distributed and enterprise application.
  • Strong SQL/MySQL knowledge, experience with Redis, Kafka, Snowflake is a plus.
  • Jira, Bit Bucket & Bamboo, CI/CD & DevOps, GitHub Copilot understanding is a plus.
  • AWS working experience is a desired.
  • Understanding of Securities Finance/Prime Brokerage, preferably with prior experience in this or a related area.

Additional Skills:

  • Excellent communication skills
  • Ability to work with colleagues around the world
  • Ability to run projects independently collaborating with other technology peers (i.e. Prime Brokerage Technology Team).
  • Attention to detail.

Skills and Certifications [note: bold skills and certification are required]

  • redis
  • Kafka

Ideal Candidate

  • Core Java Developer with Strong coding, designing, database and redis experience.