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Core Java Jobs in Chicago, IL (NOW HIRING)

Stem Xpert

Java Technical Lead

Schaumburg, IL · On-site

Hands-on development experience with Core Java, J2EE, Web Services, IBM WebSphere, WSAD, Oracle, Tomcat, MS SQL Server JSON, XML, Maven, Struts, Spring Framework, Oracle Non-Technical Skills:

Navtech, Inc.

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

Looking for strong core Java skills. They do support microservices and APIs. Springboot experience in plus. Must Have's: Java 8 or above is a must AWS (Might be flexible on this depending on if ...

Saxon Global

Technology Lead - Java/J2ee

Northbrook, IL · On-site

At least 4 years of experience in Java/J2EE(Core Java, Struts, Spring) Skills At least 4 years of experience in JavaScript, AngularJS At least 4 years of experience in Web Services At least 4 years ...

Addison Group

Lead Java Developer

Addison, IL · On-site

JUnit, JMeter, Selenium etc.) You have in depth experience with server side design, development and building highly concurrent and throughput applications using Core Java, JSPs, Servlets, XML/XSL ...

SonSoft

Java Developer with" Elastic Search"

Chicago, IL · On-site

$52.50 - $68/hr

Experience in Core Java, Spring, RESTFul services, SOAP services * Experience in API development, exposing services * Experience in Oracle DB and writing PL/SQL * Experience in writing Unit Test ...

SonSoft

Java Developer with" Elastic Search"

Chicago, IL · On-site

$52.50 - $68/hr

Experience in Core Java, Spring, RESTFul services, SOAP services * Experience in API development, exposing services * Experience in Oracle DB and writing PL/SQL * Experience in writing Unit Test ...

Atria Group LLC

Senior Java Architect

Chicago, IL · On-site

Experience in Core Java * Proficient expertise in Drools / Rules Engine, SOQ (IBM / Oracle/ mulesoft), Fiorono / Oracle Fusion, WSO2. * Financial background would be plus. Additional Information GOOD ...

Avance Consulting Services

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

... : 1. Core Java 2. Spring MVC / core 3. JPA 4. Restful webservices 5. Jquery 6. Oracle - sql/ plsql 7. Messaging - queue and topics 8. Html,CSS 9. SSL - 2 way 10. Spring Security Additional ...

Sonsoft Inc

Java + Elastic Search

Chicago, IL · On-site

$52.50 - $68/hr

Experience in Core Java, Spring, RESTFul services, SOAP services * Experience in API development, exposing services * Experience in Oracle DB and writing PL/SQL * Experience in wirting Unit Test ...

Avance Consulting Services

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

... : 1. Core Java 2. Spring MVC / core 3. JPA 4. Restful webservices 5. Jquery 6. Oracle - sql/ plsql 7. Messaging - queue and topics 8. Html,CSS 9. SSL - 2 way 10. Spring Security Additional ...

Jobsbridge

Senior Java Developer

Chicago, IL · On-site

$59 - $75.25/hr

Required Skills: core java, JSP/servlet, Spring/IOC, JUNIT, OOAD, hibernate, xml, JDBC, SQL, UML, design patterns, JMS, JAXB, annotations Good to Have: castor, spring-WS, spring-security, AJAX, open ...

Addison Group

Lead Java Developer

Addison, IL · On-site

JUnit, JMeter, Selenium etc.) • You have in depth experience with server side design, development and building highly concurrent and throughput applications using Core Java, JSPs, Servlets, XML/XSL ...

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Core Java information

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$40

$61

$84

How much do core java jobs pay per hour?

As of Sep 14, 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 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.

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
Infographic showing various Core Java job openings in Chicago, IL as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 81% Full Time, 15% Part Time, and 2% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $128,395 per year, or $61.7 per hour.

Java Technical Lead

Schaumburg, IL • On-site

Stem Xpert
Recruiting and Staffing Services • 51 - 200 employees
Learn more about Stem Xpertexternal

Full-time

Re-posted 7 days ago

Job description

Company Description

TekWissen provides a unique portfolio of innovative capabilities that seamlessly combines clients insights, strategy, design, software engineering and systems integration. Our tightly integrated offerings are tailored to each clients requirements and span the services spectrum from Application Development/Maintenance testing, IT Consulting & staffing for IT Infrastructure Management through strategic consulting and industry-oriented business process.

Job Description

Skill Software: Java & Related

Technology WebSphere

Technical Skills: 

Hands-on development experience with Core Java, J2EE, Web Services, IBM WebSphere, WSAD, Oracle, Tomcat, MS SQL Server

JSON, XML, Maven, Struts, Spring Framework, Oracle


Non-Technical Skills:

Experience leading teams of experienced developers

Strong leadership skills, including the ability to deliver constructive feedback and the ability to lead by example

Excellent verbal and non-verbal communication skills

Experience interfacing with internal and external customers


Desired Skills:

Experience RESTful Services, Rational Software Architect (RSA), WS-Security


Additional Information
Thanks & Regards

Aravind J

734-619-8931

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About stem xpert

Sourced by ZipRecruiter

STEM Xpert, based in Ann Arbor, MI, US, is a leading company in the Science, Technology, Engineering, and Mathematics (STEM) education industry. Since their establishment, they have made an indelible mark by providing innovative services and products designed to enhance STEM learning. Their service portfolio includes comprehensive educational programs, customized learning modules and interactive STEM kits. Driven by a passion for nurturing young minds, the company's mission is to bring about an educational renaissance in the STEM field, making learning not just theoretical but practical and fun. One notable achievement for STEM Xpert has been its success in reaching a broad spectrum of learners, from school-age to adults, contributing significantly towards empowering the community's technological and scientific literacy.

Industry

Recruiting and staffing services

Company size

51 - 200 Employees

Headquarters location

Ann Arbor, MI, US

Year founded

2012

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