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Core Java Jobs in Chicago, IL (NOW HIRING)

SynergisticIT

Entry Level Backend Java Developer

Chicago, IL · On-site

$52 - $67.50/hr

Candidates having basic knowledge or with one or two years of experience in JAVA, C++, and Core JAVA * We welcome candidates with all visas and citizens to apply * We assist in filing for STEM ...

iTech US, Inc.

Java Developer

Chicago Heights, IL · On-site

$49.75 - $64.25/hr

Java Developer Location: NYC, NY or Chicago, IL Duration of contract: 12+ months Employment type ... This is a Server-side role involved in building, optimizing, and enhancing core application logic ...

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 ...

Stem Xpert

Java Technical Lead

Schaumburg, IL

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:

Omni Inclusive

Payments Architect

Chicago, IL · On-site

Core Java, Payments Product - Functional, AWS / GCP / Azure Cloud, Java - Spring Boot, / .Net, Payments Product Responsibilities: Design and develop scalable and secure technical architectures for ...

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 ...

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 ...

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

$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 ...

Infosys

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

Preferred : • Experience in Core Java. Company : Infosys is a technology company that offers consulting, outsourcing, cloud infrastructure, program management, and software services. Founded in ...

Avance Consulting Services

Java Developer

Chicago, IL

$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 ...

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All JobsCore Java JobsCore Java Jobs in Chicago, IL

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

Java - Lead at Chicago, IL _5 Days Onsite

BI-Commercial

Chicago, IL • On-site

Contractor

Posted 19 days ago

Job description

Role: Java - Lead

Location: Chicago, IL

Experience: 10+ Years    "Skillset: Java microservices, Kafka, AI/ML, AWS

Java Lead:  An Lead has an “end to end product” mindset - design, implementation, testing and deployment

Design and developer application using Core Java Design and developer application using J2EE.

Experience in J2EE design patterns

Create/consume Rest APIs & Microservices

Experience with AI/ML

Experience with CI/CD, Jenkins

Experience with Junit/Mockito

Experience with database (SQL/No-SQL_

Experience with Agile, Jira, Git Experience with Kafka/Kubernetes

Experience with Cloud AWS – EKS, Amazon Aurora PostgreSQL, Dynamo DB, S3, IAM, Route 53, ELB, SNS, SQS,

Managed Streaming for Apache Kafka (MSK), Cloud Watch"          Java microservices, Kafka, AI/ML, AWS