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Junior Java Software Engineer Jobs in Naperville, IL

Mojo Trek

Lead Java Software Engineer

Chicago, IL · On-site

$70 - $80/hr

Mentors junior developers. Communicates with end users and internal customers to help direct ... Eight years or more of experience in designing and developing software applications in Java or at ...

Cccis

Java Software Engineer

Chicago, IL

$53.25 - $73.25/hr

Bachelor's degree in computer science, Software Engineering, Computer Information Systems, Mathematics * 5+years of experience in Java/J2EEsoftware development with hands-on experience with Agile ...

1 point system

Lead Java Software Engineer

Chicago, IL · On-site

... enterprise software as a senior or lead engineer with ownership of complex systems and ... Deep expertise in Java and Spring frameworks, including Spring Boot and Spring Cloud, for building ...

United Airlines

Junior Java Developer

Chicago, IL

$60K - $70K/yr

As a Java Developer, you will work with senior developers to design, develop, and maintain Java-based applications for the cloud platform. This is an excellent opportunity to kickstart your career in ...

Capgemini

Junior Java Developer

Chicago, IL · On-site

$60K - $70K/yr

As a Java Developer, you will work with senior developers to design, develop, and maintain Java-based applications for the cloud platform. This is an excellent opportunity to kickstart your career in ...

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All JobsJunior Java Software Engineer JobsJunior Java Software Engineer Jobs in Naperville, IL

Junior Java Software Engineer information

See Naperville, IL salary details

$60.9K

$106.7K

$160.8K

How much do junior java software engineer jobs pay per year?

As of Jun 18, 2026, the average yearly pay for junior java software engineer in Naperville, IL is $106,665.00, according to ZipRecruiter salary data. Most workers in this role earn between $75,400.00 and $106,300.00 per year, depending on experience, location, and employer.

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

To thrive as a Junior Java Software Engineer, you need a solid understanding of Java programming, object-oriented principles, data structures, and typically a bachelor’s degree in computer science or a related field. Familiarity with version control systems like Git, build tools such as Maven or Gradle, and experience with IDEs like IntelliJ IDEA or Eclipse are common technical requirements. Strong problem-solving, eagerness to learn, and effective teamwork are standout soft skills in this role. These skills ensure you can write reliable code, collaborate efficiently, and adapt to evolving technical challenges in software development projects.

What is the difference between Junior Java Software Engineer vs Java Developer?

AspectJunior Java Software EngineerJava Developer
Required CredentialsTypically a bachelor's degree in Computer Science or related field; some certifications like Oracle Java CertificationSimilar credentials; often holds Java certifications and a degree in a related field
Work EnvironmentEntry-level position in development teams, often under supervision, focusing on coding and testingCan be entry to mid-level, involved in designing, coding, and maintaining Java applications
Employer & Industry UsageUsed across tech companies, startups, and corporate IT departmentsCommonly used in software development firms, tech companies, and enterprise environments

While both roles involve Java programming, a Junior Java Software Engineer typically focuses on learning and supporting development tasks under supervision, whereas a Java Developer may have more responsibility in designing and implementing Java applications. The roles often overlap, but the engineer role emphasizes entry-level growth, while the developer role can involve more independent work.

What does a Junior Java Software Engineer do?

A Junior Java Software Engineer is typically responsible for assisting in the development, testing, and maintenance of software applications using the Java programming language. They work under the guidance of more experienced engineers to write code, fix bugs, and contribute to team projects. Junior engineers also learn best practices in software development, participate in code reviews, and continuously improve their technical skills. Their role often includes collaborating with other developers, designers, and quality assurance teams to deliver high-quality software solutions.

What kinds of projects or tasks can a Junior Java Software Engineer expect to work on during their first year?

As a Junior Java Software Engineer, you can expect to work on tasks such as fixing bugs, writing unit tests, and developing small features under the guidance of more experienced team members. You'll likely contribute to code reviews, participate in daily stand-ups, and collaborate closely with QA engineers and front-end developers. Over time, you may gradually take on more complex assignments, such as designing modules or integrating third-party APIs. This hands-on experience helps build your technical skills and deepen your understanding of the software development lifecycle.
What are the most commonly searched types of Java Software Engineer jobs in Naperville, IL? The most popular types of Java Software Engineer jobs in Naperville, IL are:
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Junior Java Software Engineer jobs near you
Lead Java Software Engineer

Lead Java Software Engineer

Mojo Trek

Chicago, IL • On-site

$70 - $80/hr

Other

Posted 21 hours ago

Job description

Job Description COMPANY DESCRIPTION Mojo Trek, an Inc. 5000 company, delivers an unparalleled recruitment experience, grounded in transparency and integrity. From midsize technology innovators to Fortune 50 powerhouse corporations, we help our clients build technology teams that make a difference, push the change forward, and develop software critical to their success.

Our Client is building a world-class platform to host a wide range of applications. It's a state-of-the-art digital platform that encompasses mobile, web, cloud, and distributed computing systems. Their solutions are designed to improve productivity, profitability, and safety, and help communities and economies grow in an environmentally sustainable way.

RESPONSIBILITIES: Competent to perform all programming and development assignments without close supervision; normally assigned the more complex aspects of systems work. Acts as team leader for development and support groups; provides programming and application/technical leadership, guidance, and assistance to other team members. Works directly on complex application/technical problem identification and resolution, including responding to off-shift and weekend support calls.

Works independently on complex systems or infrastructure components that may be used by one or more applications or systems. Drives application development focused around delivering business valuable features Maintains high standards of software quality within the team by establishing good practices and habits. Identifies and encourages areas for growth and improvement within the team.

Mentors junior developers. Communicates with end users and internal customers to help direct development, debugging, and testing of application software for accuracy, integrity, interoperability, and completeness. Leads development of new functionality and applications on cross-functional teams Performs integration testing and customer acceptance testing of components that requires careful planning and execution to ensure timely, quality results Participates in technology evaluation and recommendations.

Applies an enterprise-wide view to solutions to support the adoption of standards and practices and promote reuse. Employee is also responsible for performing other job duties as assigned by management from time to time. QUALIFICATIONS: Bachelor's degree in Computer science or Electrical engineering or related field is required 10+ years experience of designing and developing software applications in Java or at least 5years experience in Java with Master's degree.

Eight years or more of experience in designing and developing software applications in Java or at least five years of experience in Java with Master's degree in Computer Science or related field. Developing software applications using relational and Nosql databases. Knowledge of application architectural patterns, such as MVC, Microservices, Event-driven, etc.

Experience designing well-defined Restful APIs Knowledge of datastores such as AWS Aurora, AWS RDS, AWS DynamoDB, MongoDB, ElasticSearch, Cassandra, Redis, MySQL, Oracle. Knowledge of other AWS technologies, such as API Gateway, ALB, NLB, Fargate, Lambda, S3, CloudWatch, KMS, etc. Ability to work under pressure and within time constraints Passion for technology and an eagerness to contribute to a team-oriented environment Technical Skills: Strong Java 17+ Backend development is a MUST SpringBoot framework Message streaming solutions, such as AWS Kinesis, AWS SQS, AWS SNS, Apache Kafka, RabbitMQ, ApacheActiveMQ RESTful web services AWS knowledge - IAM, Kinesis, DynamoDB, API stack, SQS, SNS, KMS API tools such as Swagger, Postman and Assertible Slick - SQL queries DevOps, CI/CD, Jenkins High Availability and Reliable Solutions Some architecture experience.

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