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Core Java Jobs in Chicago, IL (NOW HIRING)

Jobsbridge

JAVA Web UI developer

Chicago, IL · On-site

Skill JAVA Web UI developer, UI and UX using EXTJS, Angular JS, JQuery, Core JAVA Application development Location Chicago, IL Total Experience 5 yrs. Max Salary Not Mentioned Employment Type Direct ...

Georgia IT Inc

Java Support Lead-Chicago, IL

Chicago, IL · On-site

$100K/yr

Strong development experience in Core JAVA/J2EE, EJB3, JSP,SPRING,STRUTS, HIBERNATE, Web services Good to have HTML 5,Jquery, JavaScript,CSS Good communication skills Good analytical and problem ...

Diverse Lynx

Java FSD AWS (IL)

Chicago, IL · On-site

$52.50 - $68/hr

Job Title Core Java - Strong experience in Core Java with solid understanding of OOP, collections, and multithreading. Developed scalable backend applications and REST APIs. React - Experienced in ...

Seven Seven Software

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

* Strong experience in Core Java (Java 11+), Functional Programming, Spring, ORM (JPA/Hibernate), Unit Testing & Integration Testing * Proficient in RDBMS (Oracle), SQL, and Unix Scripts * Experience ...

Kaav Inc.

Java Full Stack Developer

Chicago, IL · On-site

$54 - $69.75/hr

Minimum 8 years of Java Applications Development work experience Solid application design, coding, testing, maintenance and debugging skills Solid experience in Core Java, Spring Framework ...

Jobsbridge

Java Front End Developer

Chicago, IL

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Mandatory Skills: 8-10 years of experience in browser based UI development.

Sonsoft Inc

Core Java/Spring Developer

Chicago, IL · On-site

$52.50 - $68/hr

Company Description SonSoft is an IT Staffing and consulting firm and duly organized under the laws of the Commonwealth of Georgia. We are growing at a steady pace specializing in the fields of ...

Jobsbridge

Java Front End Developer

Chicago, IL

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Mandatory Skills: 8-10 years of experience in browser based UI development.

Jobsbridge

Java Front End Developer

Chicago, IL

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Mandatory Skills: 8-10 years of experience in browser based UI development.

Jobsbridge

Java Front End Developer

Chicago, IL

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Mandatory Skills: 8-10 years of experience in browser based UI development.

Seven Seven Software

Java J2EE Developer

Chicago, IL · On-site

Architecture and design of products and integrations Strong knowledge of coding platforms/frameworks (Core Java, J2EE, Spring, JPA, Kafka, Rest API, PL/SQL, Cloud, React(Optional) ). Should have fair ...

Seven Seven Software

Java J2EE Developer

Chicago, IL · On-site

Architecture and design of products and integrations Strong knowledge of coding platforms/frameworks (Core Java, J2EE, Spring, JPA, Kafka, Rest API, PL/SQL, Cloud, React(Optional) ). Should have fair ...

Jobsbridge

Java Front End Developer

Chicago, IL

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Minimum 6 years of experience in Java development is REQUIRED Minimum 3 ...

Comtech, LLC

Java Developer - Lead

Chicago, IL

Excellent knowledge in Core Java (Data Structures, Algorithms, I/O, NIO, Multi-Threading ) * Excellent knowledge of Spring Framework (Spring Boot, Spring MVC, Spring Integration & Spring batch are ...

Apex Informatics

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

Core Java Developer Work Location: Chicago, IL (Hybrid Role) Must have skills: AWS, Microservices, testing, Amazon RDS or DynamoDB Roles: 1. ** Application Development: ** Design, code, test, and ...

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Core Java information

See Chicago, IL salary details

$40

$61

$84

How much do core java jobs pay per hour?

As of Jun 25, 2026, the average hourly pay for core java in Chicago, IL is $61.73, according to ZipRecruiter salary data. Most workers in this role earn between $52.02 and $69.33 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.

Are Java jobs still in demand?

Java developer roles remain in high demand across various industries due to Java's stability, scalability, and widespread use in enterprise applications. Skills in core Java, frameworks like Spring, and experience with cloud environments can enhance job prospects in this field.

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.

Is Java outdated in 2026?

Core Java remains a fundamental programming language used in enterprise applications, Android development, and backend systems in 2026. Its ongoing updates, widespread adoption, and strong community support ensure its relevance for Java developers. Staying current with new features and frameworks is important for maintaining job competitiveness.

What are core Java skills?

Core Java skills include proficiency in Java programming language fundamentals such as syntax, object-oriented programming, exception handling, and data structures. Additionally, knowledge of Java APIs, multithreading, and basic understanding of development tools like IDEs and version control systems are essential for Java developers.

Which pays more, C++ or Java?

For Core Java developers, salary levels are generally comparable to C++ developers, but C++ roles often require more specialized skills in systems programming and performance optimization, which can lead to higher pay in certain industries. Overall, salary differences depend on experience, location, and industry demand, with both languages offering strong earning potential for skilled programmers.
What are popular job titles related to Core Java jobs in Chicago, IL? For Core Java jobs in Chicago, IL, the most frequently searched job titles are:
What job categories do people searching Core Java jobs in Chicago, IL look for? The top searched job categories for Core Java jobs in Chicago, IL are:
Core Java jobs near you
Service Virtualization with Java

Service Virtualization with Java

krg technology inc

Deerfield, IL

$51.75 - $67/hr

Contractor

Posted 3 days ago

Job description

Company Description

Sevagan M

KRG Technologies, Inc.,

sevagan(at)krgtech.com

25000 Avenue Stanford, Suite #243, Valencia, CA 91355

Direct : 661-367-8000 Ext : 513


Job Description

1) Core Java application design and coding experience

2) Java EE

3) Strong Experience with in Building REST - Based web services.

4) Knowledge with Spring MVC framework.

5) Knowledge with application container base framework i.e Tomcat/Jboss

6) Experience with Unix

7) Experience using Design Patterns.

8) Experience with source control systems such as SVN,CVS or GIT

9) Familiar with SQL, Oracle.

10) Willingness to learn new technologies including commercial and open source.

Preferred Qualification:

1) Good to have experience with SOA Testing

2) Service Virtualization - WebServices

3) Knowledge with HP Service Test

Additional Information

Strong Knowledge on Service Virtualization and Core Java

KRG Technologies logo

About KRG Technologies

Sourced by ZipRecruiter

KRG Technologies was founded with a simple motive of offering the clients exactly what they want, how they want and when they want. By leveraging for its clients its technological edge and right-sourcing advantage, KRG in a short period of time has grown to become one of the most trusted strategic technology partners. Treating every client as the top priority, we customize our solutions and services to align with the unique needs of each client. Headquartered in Valencia, California, KRG employs a unique global delivery platform to minister its offerings spanning from application development and maintenance to business process reengineering. With years of hands-on domain experience and international presence, we offer state-of-the-art solutions backed by our follow-the-sun service model in the most cost effective manner. We value our clientele for the trust reposed in us and our clientele admire us for our personalized approach and deep commitment to their success. Our biggest strength lies in technical expertise of our team and individual competency of our employees, which enables us to be the most befitting solution provider.

Industry

It services

Company size

201 - 500 Employees

Headquarters location

Valencia, CA, US

Year founded

2003

Social media

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