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Java Developer Jobs in Illinois (NOW HIRING)

Staffingine LLC

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

Java Developer Job Location: Chicago, IL Job Type: Contract * Lead design development and deployment of complex business process management solutions using Camunda BPM versions 7 or 8 within ...

IT Associates, Inc.

Java Developer

Downers Grove, IL · On-site

$55 - $57/hr

Collaborate with infrastructure, DevOps, and architecture teams to improve application reliability and scalability. Required Qualifications 5-8+ years of Java development experience. Strong ...

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 ...

PROLIM Global Corporation

Java Developer

Naperville, IL · On-site

$51 - $66/hr

Java Developer Naperville , IL (Onsite ) Contract JD: Strong hands-on experience in Core Java (Multithreading| Collections| Streams| JVM tuning). Extensive experience in Microservices architecture ...

Cognizant

Java Developer

Riverwoods, IL · On-site

$53 - $68.50/hr

We are seeking a skilled Java Developer to join our engineering team and support the development, customization, and deployment of open-source software (OSS) components in a containerized cloud ...

New

Stem Xpert

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

Java Developer Location : Chicago, IL Duration : Permanent/Full Time Implementations * Desirable: Java/ J2EE and Oracle DB background * Strong learnability on new product for grasping the nuances on ...

GRMinc

Java Developer

Bloomington, IL · On-site

$49 - $63.25/hr

Java Developer Location : Bloomington, IL Duration : 7 Months Requirement: Performs standard systems analyst activities in an individual contributor role such as analyzing the systems requirements ...

CYNET SYSTEMS

Java Developer

Chicago, IL · On-site

$43 - $48/hr

Proficiency in java programming language and in-depth knowledge of spring boot framework. * Experience with amazon web services (aws) cloud services and deployment practices. * Familiarity with ...

1 point system

Java Developer

Riverwoods, IL · On-site

$53 - $68.50/hr

Required Qualifications * 5-7+ years professional experience as a Software Engineer or Backend Engineer. * Strong proficiency in Java 21, Spring Boot, RESTful APIs, and microservices. * Hands-on ...

GRMinc

Java Developer

Bloomington, IL · On-site

$49 - $63.25/hr

Java Developer Location : Bloomington, IL Duration : 7 Months Requirement: Performs standard systems analyst activities in an individual contributor role such as analyzing the systems requirements ...

Cognizant Technology Solutions

Java Developer

Riverwoods, IL · On-site

$53 - $68.50/hr

We are seeking a skilled Java Developer to join our engineering team and support the development, customization, and deployment of open-source software (OSS) components in a containerized cloud ...

Saige Partners

Java Developer

Champaign, IL

$100K - $140K/yr

Java Developer (Champaign, IL) Job Overview: We are seeking a highly motivated Java Software Developer to join our collaborative technology team In this role, you will design, develop, and support ...

1872 Consulting

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

Job Summary : 1872 Consulting is seeking a Java Developer to join their team in Chicago, IL. The role involves developing online services, specifying software architecture, and creating critical ...

Atria Group LLC

Strong Java Developer

Normal, IL

$49.75 - $64.50/hr

Strong Java developer who is available for a 3-6 month contract in IL They must be able to create interfaces between applications using ESB and XML. Strong ESB experience is a must Top Three Skills ...

SynergisticIT

Junior Java Developer

Chicago, IL · On-site

Entry-Level Java Developer SYNERGISTICIT wants every candidate to know that the job market is challenging and to stand out, you need to have exceptional skills and technologies and that's where we ...

Arete Technologies, Inc.

Java Developer

Chicago, IL · On-site

$52.50 - $68/hr

MUST HAVE: * Bachelor's degree or foreign equivalent in Computer Science, Computer Applications, Engineering, or related field * 5+ years of experience as a Java Developer including: * Java ...

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All JobsJava Developer JobsJava Developer Jobs in Illinois

Java Developer information

See Illinois salary details

$15

$54

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How much do java developer jobs pay per hour?

As of Sep 12, 2026, the average hourly pay for java developer in Illinois is $54.94, according to ZipRecruiter salary data. Most workers in this role earn between $47.50 and $61.49 per hour, depending on experience, location, and employer.

What is a Java developer?

Java Developers are software professionals who specialize in designing, developing, and maintaining applications using the Java programming language. They work on a variety of projects, including web, desktop, and mobile applications, as well as enterprise-level systems. Java Developers are responsible for writing clean and efficient code, testing and debugging programs, and collaborating with other team members to deliver robust software solutions. Their expertise in Java and related technologies is crucial for building scalable and secure applications.

What do Java developers do?

Java developers create dynamic computer applications and websites using the Java computer programming language. The Java language integrates with other programming languages and infrastructures to build robust business applications and software for a wide range of industries, from finance and healthcare to content management and social media. Java developers may be involved in all stages of application development, from conception and design to testing, production, and ongoing maintenance. The goal is to provide efficient solutions for business needs.

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

To thrive as a Java Developer, you need strong proficiency in Java programming, object-oriented design, and a solid understanding of software development principles, usually supported by a degree in computer science or related fields. Familiarity with frameworks such as Spring or Hibernate, experience with version control systems like Git, and sometimes certification like Oracle Certified Professional Java Programmer (OCPJP) are commonly required. Effective problem-solving, teamwork, and attention to detail are crucial soft skills in this role. These skills ensure robust, maintainable, and scalable software solutions that meet project requirements and business goals.

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

Java Developers working on large-scale enterprise applications often encounter challenges such as managing complex codebases, ensuring efficient performance, and integrating with legacy systems. Collaborating with cross-functional teams is crucial, as these projects typically involve multiple developers, QA engineers, and business analysts. Additionally, maintaining code quality and adhering to best practices while meeting tight deadlines can be demanding. Staying up-to-date with evolving frameworks and tools also plays a key role in overcoming these challenges.

What is the difference between Java Developer vs Software Engineer?

AspectJava DeveloperSoftware Engineer
Required CredentialsBachelor's in Computer Science or related, Java certificationsBachelor's in Computer Science or related, various certifications
Work EnvironmentDevelops Java-based applications, often in teamsDesigns and develops software solutions, may include Java projects
Employer & Industry UsageTech companies, finance, e-commerceBroad industry, including tech, finance, healthcare

Java Developers focus specifically on Java programming, while Software Engineers have a broader role in designing and developing software solutions across multiple languages. Both roles often require similar educational backgrounds and certifications, but Java Developers typically work more directly with Java-based projects, whereas Software Engineers may handle diverse technologies.

Is a Java developer still in demand?

Java developers remain in high demand due to the language's widespread use in enterprise applications, Android development, and backend systems. Skills in frameworks like Spring and knowledge of cloud platforms can enhance job prospects in this field.
More about Java Developer jobs

What are the most commonly searched types of Java Developer jobs in Illinois?

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For Java Developer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Java Developer jobs in Illinois look for?

The top searched job categories for Java Developer jobs in Illinois are:

What cities in Illinois are hiring for Java Developer jobs?

Cities in Illinois with the most Java Developer job openings:

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For Java Developer jobs in IL, the most frequently searched job titles are:

Java Developer jobs near you
Infographic showing various Java Developer job openings in Illinois as of August 2026, with employment types broken down into 80% Full Time, 9% Part Time, and 11% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $114,278 per year, or $54.9 per hour.

Java Developer

Chicago, IL

Contact Government Services, LLC
Public Administration • 11 - 50 employees
Learn more about Contact Government Services, LLCexternal

$140K - $220K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 13 days ago

Key responsibilities

  • Aggregate data from multiple sources and prepare plans for data collection, processing, storage, and reporting.

  • Transform software designs and specifications into high functioning Java code and integrate solutions into higher level systems.

  • Test, debug, and perform upgrades on software to ensure security and efficiency.

Job description

Java Developer
Employment Type: Full-Time 
Department: Information Technology

CGS is seeking a Java developer/programmer to join a team working on the enhancement of data utilization for a large, state-run project. The developer will be asked to aggregate data from several different existing sources and prepare plans for how this data can be collected, processed, stored, and reported on.   The candidate for this position should have a strong understanding of large-scale enterprise systems and have a demonstrated expert knowledge of Java coding and web applications including Java Server Faces Framework.

CGS brings motivated, highly skilled, and creative people together to solve the government’s most dynamic problems with cutting edge technology. To carry out our mission, we are seeking candidates that are excited to contribute to government innovation, appreciate collaboration, and can anticipate the needs of others. Here at CGS, we offer an environment in which our employees feel supported, and we encourage professional growth through various learning opportunities.

Skills and attributes for success:
- Collaborate with business analyst and developers to produce software designs
- Provide work estimates to project manager, provide frequent status updates and track progress against the project work plan
- Formulate program specifications and basic prototypes
- Transform software designs and specifications into high functioning code in the appropriate language
- Integrate individual software solutions to higher level systems
- Use web-based tools to create and advance applications
- Test code periodically to ensure it produces the desirable results and perform debugging when necessary
- Collaborate with business, development, and QA teams to develop testing and acceptance procedures
- Perform upgrades to make software and systems more secure and efficient
- Collaborate with business analyst to provide training, knowledge transfer, and documentation for user support

Qualifications:
- Three (3) Years of experience developing Java web applications using the Java Server Faces Framework
- Five (5) Years of experience in Java web application user interface design and implementation including HTML, CSS, and Javascript
- Three (3) Years of experience integrating Java web applications with SQL databases using Hibernate
- Three (3) Years of SQL relational database design and coding experience
- Five (5) Years of experience developing software both independently and in a team environment
- Ability to demonstrate superior organizational skills with an acute attention to detail
- Ability to work effectively under pressure in time-sensitive situations and prioritize multiple projects with similar deadlines

Our commitment:
Contact Government Services (CGS) strives to simplify and enhance government bureaucracy through the optimization of human, technical, and financial resources. We combine cutting edge technology with world-class personnel to deliver customized solutions that fit our clients’ specific needs. We are committed to solving the most challenging and dynamic problems.

For the past seven years we’ve been growing our government-contracting portfolio, and along the way we’ve created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.

Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come.

We care about our employees. Therefore, we offer a comprehensive benefits package:
- Health, Dental, and Vision
- Life Insurance
- 401k
- Flexible Spending Account (Health, Dependent Care, and Commuter)
- Paid Time Off and Observance of State/Federal Holidays

Contact Government Services, LLC is an Equal Opportunity Employer. Applicants will be considered without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran

Join our team and become part of meaningful government innovation!

Explore additional job opportunities with CGS on our Job Board:
https://cgsfederal.com/join-our-team/

For more information about CGS please visit: https://www.cgsfederal.com or contact:
Email: info@cgsfederal.com

#CJ

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.