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Junior Java Backend Developer Jobs in Illinois (NOW HIRING)

Scigon Solutions

Java Developer

Oak Brook, IL · On-site

$86K - $115K/yr

Build scalable, high-performance backend services and APIs. * Translate business and technical ... Provide technical guidance and mentor junior developers as needed. * Maintain clear and ...

1 point system

Java Developer

Riverwoods, IL · On-site

$53 - $68.50/hr

This role centers on building and optimizing high‑performance backend services and cloud‑based ... Engineer or Backend Engineer. * Strong proficiency in Java 21, Spring Boot, RESTful APIs, and ...

Appex Innovation

Senior Java Developer

Chicago, IL · Hybrid

$70 - $75/hr

... native backend services using Java, Spring Boot, Apache Camel, microservices, container ... engineering best practices; however, the primary expectation remains hands-on delivery.

New

Appex Innovation

Senior Java Developer

Chicago, IL · Hybrid

$59 - $75.25/hr

Java Developer (Senior) Location: Chicago, IL - hybrid Key Areas: AI-DLC Senior Developer ... Build cloud-native backend services using Java, Spring Boot, Apache Camel, microservices, container ...

New

Appex Innovation

Senior Java Developer

Chicago, IL · On-site

$59 - $75.25/hr

... native backend services using Java, Spring Boot, Apache Camel, microservices, container ... engineering best practices; however, the primary expectation remains hands-on delivery.

New

SYSTEGRATION INC

Sr. Backend Java Developer

Chicago, IL · On-site

$124K - $161K/yr

We are helping our Direct Client (Fortune 100 company) to look for Top Notch/Expert Sr. Backend Java Developer for 100% Onsite Multi-Year Contract role in Chicago Downtown, Immediate Start! Client ...

SYSTEGRATION INC

Sr. Backend Java Developer

Chicago, IL · On-site

$124K - $161K/yr

We are helping our Direct Client (Fortune 100 company) to look for Top Notch/Expert Sr. Backend Java Developer for 100% Onsite Multi-Year Contract role in Chicago Downtown, Immediate Start! Client ...

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Showing results 1-20

All JobsJava Backend Developer JobsJunior Java Backend Developer JobsJunior Java Backend Developer Jobs in Illinois

Junior Java Backend Developer information

See Illinois salary details

$59.1K

$103.5K

$156K

How much do junior java backend developer jobs pay per year?

As of Jul 24, 2026, the average yearly pay for junior java backend developer in Illinois is $103,516.00, according to ZipRecruiter salary data. Most workers in this role earn between $73,200.00 and $103,200.00 per year, depending on experience, location, and employer.

What are Junior Java Backend Developers?

Junior Java Backend Developers are entry-level software engineers who specialize in building and maintaining the server-side logic of web applications using the Java programming language. They work closely with senior developers to implement APIs, manage databases, and ensure smooth data flow between servers and users. Their responsibilities often include writing clean, efficient code, debugging applications, and learning new technologies as needed. Junior Java Backend Developers typically have a foundational knowledge of Java, SQL, and frameworks like Spring Boot.

What are some common challenges faced by Junior Java Backend Developers when joining a new team?

As a Junior Java Backend Developer, one common challenge is adapting to existing codebases and understanding the team's preferred coding standards and practices. You may also find it challenging to grasp complex system architectures or integrate your code with various APIs and databases. However, most teams provide onboarding support, code reviews, and mentorship to help you ramp up. Collaborating closely with senior developers and asking questions can significantly ease your transition and foster your growth in the role.

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

To thrive as a Junior Java Backend Developer, you need solid knowledge of Java programming, understanding of object-oriented design, and familiarity with backend frameworks like Spring, often supported by a degree in computer science or related field. Experience with relational databases (e.g., MySQL), version control systems (like Git), and exposure to RESTful APIs and build tools (such as Maven) are typically required. Strong problem-solving skills, attention to detail, and effective communication make someone stand out in this role. These skills and qualities are crucial for building reliable, scalable server-side applications and collaborating effectively within a software development team.
What are the most commonly searched types of Java Backend Developer jobs in Illinois? The most popular types of Java Backend Developer jobs in Illinois are:
What are popular job titles related to Junior Java Backend Developer jobs in Illinois? For Junior Java Backend Developer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Junior Java Backend Developer jobs in Illinois look for? The top searched job categories for Junior Java Backend Developer jobs in Illinois are:
What cities in Illinois are hiring for Junior Java Backend Developer jobs? Cities in Illinois with the most Junior Java Backend Developer job openings:
Junior Java Backend Developer jobs near you
Infographic showing various Junior Java Backend Developer job openings in Illinois as of July 2026, with employment types broken down into 89% Full Time, 6% Part Time, and 5% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $103,516 per year, or $49.8 per hour.
Backend / Frontend Developer Intern

Backend / Frontend Developer Intern

Prospect Equities

Chicago, IL • On-site

$19.75 - $26/hr

Internship

Posted 28 days ago

Job description

1. Frontend Developer Intern:
We are seeking a motivated and detail-oriented Frontend Developer Intern to join our technology team in building responsive, user-friendly public websites and web applications. In this role, you will focus on crafting intuitive and performant user interfaces using JavaScript / TypeScript and React, while collaborating closely with backend engineers to integrate APIs and deliver seamless user experiences. This internship offers hands-on exposure to modern frontend development practices and an opportunity to contribute to real-world, production-level applications. Key responsibilities include:
  • Build, enhance, and optimize frontend components using JavaScript / TypeScript and React to deliver smooth and responsive user experiences.
  • Collaborate with backend engineers to integrate RESTful APIs, ensuring reliable data flow between frontend and backend systems.
  • Participate in the design and refinement of user interfaces with an emphasis on performance, accessibility, and usability.
  • Identify, debug, and resolve frontend issues to continuously improve application quality and user experience.
  • Write and maintain frontend unit tests to ensure code reliability and stability across modern browsers.
  • Assist with the deployment and maintenance of frontend applications on AWS, supporting smooth releases and updates.

2. Backend Developer Intern:
We are seeking a motivated and detail-oriented Backend Developer Intern to join our technology team in building and maintaining robust, scalable software systems. In this role, you will collaborate closely with data and frontend engineers and contribute to the development of backend services that power real-world applications. Our technology stack includes Java and Spring Boot for backend services, PostgreSQL, MongoDB, and Elasticsearch for data storage and search, React with JavaScript for frontend applications, and AWS for cloud deployment. This internship is ideal for candidates who are passionate about software engineering and eager to gain hands-on experience working on production systems. Key Responsibilities include:
  • Assist in the development, enhancement, and maintenance of backend services using Java and Spring Boot.
  • Design, implement, and optimize database queries using PostgreSQL, MongoDB, and Elasticsearch.
  • Write and maintain unit tests using JUnit to ensure code quality, reliability, and maintainability.
  • Collaborate with the engineering team to deploy, monitor, and maintain backend systems on AWS.
  • Debug, troubleshoot, and optimize backend code to improve system performance and stability.
  • Participate in code reviews and contribute to discussions around system design and architecture.

3. Mobile Developer Intern:
We are seeking a motivated and detail-oriented Mobile Developer Intern to join our technology team and help build high-quality, cross-platform mobile applications using React Native and Expo. In this role, you will focus on developing intuitive, performant, and user-friendly mobile experiences for both iOS and Android platforms. You will collaborate closely with frontend and backend engineers to integrate RESTful APIs, implement new features, and ensure a seamless mobile user experience. Key responsibilities include:
  • Design, build, and maintain mobile application features using TypeScript and React Native.
  • Collaborate with backend engineers to integrate RESTful APIs, ensuring reliable and efficient data flow between mobile apps and backend systems.
  • Implement responsive and adaptive mobile UI components that provide a consistent experience across iOS and Android devices.
  • Identify, debug, and resolve mobile-specific issues related to performance, usability, and device compatibility.
  • Contribute to mobile unit testing and debugging to ensure code quality and application stability.
  • Assist in building and maintaining mobile deployment workflows, including app builds and environment configurations.
4. Data Analyst Intern:
We are seeking a motivated and analytical Data Analyst Intern who is passionate about data-driven problem solving and eager to transform data insights into meaningful business impact. In this role, you will work closely with our technology and business teams to analyze datasets, build analytical pipelines, and apply statistical and machine learning techniques to support real-world decision-making. Key responsibilities include:
  • Perform data cleaning, transformation, and validation using Python and SQL to ensure data accuracy and reliability.
  • Assist in building and maintaining data pipelines to support analytics, reporting, and modeling workflows.
  • Conduct exploratory data analysis (EDA) to identify trends, patterns, and actionable insights.
  • Support the develop, evaluate, and improve statistical and machine learning models to use in business decision-making.
  • Contribute to feature engineering and model performance tuning.
  • Create clear and concise reports, dashboards, and visualizations to communicate findings to technical and non-technical stakeholders.

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