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Core Java Jobs (NOW HIRING)

Marencor

Core Java Developer

New York, NY · On-site

Qualifications/ Experience: * 6-12 years of coding experience in core Java, Spring framework, and messaging framework * Experience building distributed and enterprise applications. * Strong SQL/MySQL ...

Sonsoft Inc

Core Java Developer

New York, NY · On-site

Core Java * Strong J2EE in XML, JMS, JAX-WS, CXF * Spring Framework * Strong understanding of OOP &SOA * Design Patterns * Java concurrency, concurrency patterns * Experience building thread safe ...

Jobsbridge

Core Java Lead

New York, NY

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Good Core Java Skills Know data structure Spring, REST, Services is nice to ...

Sonsoft Inc

Core Java ( Local )

New York, NY

Note: candidate need to strong on Core Java with hands/ Hands on Java is must. * 7+ years experience as a technical analyst in financial industry * Functional understanding of retail banking and/or ...

Sonsoft Inc

Core Java Developer

Jersey City, NJ · On-site

Core Java * Web Security * Collections * Spring * MVC * Design * Web Services * SQL Qualifications Basic Qualifications:- * Bachelor's degree or foreign equivalent required from an accredited ...

Jobsbridge

Senior Core Java Developer

San Jose, CA

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Five years programming experience in JAVA. One or more years JMS experience.

Sonsoft Inc

Core Java Developer

Columbus, OH · On-site

Core Java * Web Security * Collections * Spring * MVC * Design * Web Services * SQL Qualifications Basic Qualifications:- * Bachelor's degree or foreign equivalent required from an accredited ...

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 ...

Socket.dev

Senior Core Java Developer

Alpharetta, GA · On-site

$120 - $170/hr

Senior Software Engineer Senior Software Engineer, focusing on delivering high-quality solutions in Core Java. In this role, you will be working on-site at the customer location to develop, enhance ...

Stem Xpert

Core Java Committer

Fort Worth, TX · On-site

Need someone who is a hands on Core Java Programming. Multithreading. Exceptional Handling. Need someone who is very strong backend development. Data structures. Stack implementations. Tread setting.

Socket.dev

Senior Core Java Developer

Frisco, TX · On-site

$120 - $160/hr

Senior Software Engineer Senior Software Engineer, focusing on delivering high-quality solutions in Core Java. In this role, you will be working on-site at the customer location to develop, enhance ...

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How much do core java jobs pay per hour?

As of Aug 19, 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 is a Core Java developer?

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

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 challenges do 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.

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.

Are Core Java jobs still in demand?

Core Java jobs remain in demand across various industries such as finance, healthcare, and technology, especially for roles involving backend development, Android app development, and enterprise applications. Proficiency in Java, along with knowledge of frameworks like Spring and tools such as Maven, enhances employability in this field.

Can I get a job with Core Java?

Core Java is a fundamental skill for many software development roles, especially in backend and enterprise applications. Proficiency in Java programming, understanding of object-oriented principles, and familiarity with development tools like IDEs and version control are essential for securing such jobs.

What jobs can I get with Core Java?

Core Java skills are essential for roles such as Java Developer, Software Engineer, Backend Developer, and Application Programmer. These positions typically involve developing, maintaining, and testing Java-based applications, often requiring knowledge of frameworks like Spring or Hibernate and familiarity with object-oriented programming concepts.
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CORE Java jobs near you
Infographic showing various Core Java job openings in the United States 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 $124,638 per year, or $59.9 per hour.

Core Java Developer with Firco

Accord Technologies Inc.

New York, NY • On-site

Contractor

Re-posted 22 days ago

Job description

JR1033108
Core Java Developer with Firco 
New York City, NY (Need Onsite day 1, hybrid 3 days from office).
Duration: 12 months
Position type: W2 contract


Mandatory skills: Java, rest API, Firco (Sanction Tool)., Microservices architecture,Azure Cloud,SQL database, Docker, kumbernates

We are seeking a highly skilled Senior Core Java Developer with extensive experience in RestAPI development, Microservices architecture, and Azure Cloud. The ideal candidate will possess strong SQL database expertise and have hands-on experience with Firco (Sanction Tool).

Responsibilities:
  • Design, develop, and maintain scalable and robust core Java applications.
  • Build and optimize RestAPI services for seamless integration and communication across microservices.
  • Architect and implement microservices using industry best practices.
  • Deploy and manage applications in Azure cloud environment, ensuring high availability and performance.
  • Develop and optimize complex SQL queries and design database schemas.
  • Integrate and work with Firco (Sanction Tool) for compliance screening and sanctions validation.
  • Collaborate with cross-functional teams to analyze requirements and deliver high-quality solutions.
  • Conduct code reviews, provide technical guidance, and ensure adherence to standards.
  • Troubleshoot, debug, and resolve production issues efficiently.
Requirements:
  • Overall 10+ years of IT experience is required
  • Strong proficiency in Core Java (Java 8+).
  • Hands-on experience developing and consuming RestAPIs.
  • Extensive knowledge of Microservices architecture and design patterns.
  • Experience deploying, managing, and scaling applications on Azure Cloud Services.
  • Strong SQL database skills (e.g., Oracle, SQL Server, PostgreSQL) including writing complex queries, stored procedures.
  • Proven experience working with Firco (Sanction Tool) or similar sanctions screening tools.
  • Familiarity with CI/CD pipelines, containerization (Docker, Kubernetes is a plus).
  • Good understanding of version control systems like Git.
 
Preferred, but not required:
  • Experience with other cloud platforms (AWS, GCP) is a plus.
  • Knowledge of frontend technologies such as Angular or React (optional).
  • Certification in Java, Azure, or Microservices is advantageous.