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Java Back End Developer Jobs in Illinois (NOW HIRING)

PTR Global

Java AI Platform Engineer

Chicago, IL · On-site

$53.25 - $73.25/hr

We are seeking a highly skilled and experienced Java Developer IV to join our team in Chicago ... Build cloud-native backend services using Java, Spring Boot, Apache Camel, microservices, container ...

New

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.

Posted today

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 ...

Scigon Solutions

Java Developer

Oak Brook, IL · On-site

$86K - $115K/yr

Java Developer (Enterprise Applications) Salary: $86,250-$115,000 Position Summary We are seeking ... Build scalable, high-performance backend services and APIs. * Translate business and technical ...

Worldpay, Inc.

Senior Backend Engineer

Chicago, IL · Hybrid

As a Lead Software Engineer with strong back-end expertise, you'll start your day aligning with ... Your focus will be on driving Java and Spring Boot-based services, APIs, and integrations that ...

FIS

Senior Backend Engineer

Chicago, IL · Hybrid

As a Lead Software Engineer with strong back-end expertise, you'll start your day aligning with ... Your focus will be on driving Java and Spring Boot-based services, APIs, and integrations that ...

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All JobsJava Back End Developer JobsJava Back End Developer Jobs in Illinois

Java Back End Developer information

See Illinois salary details

$9

$52

$71

How much do java back end developer jobs pay per hour?

As of Jul 22, 2026, the average hourly pay for java back end developer in Illinois is $52.94, according to ZipRecruiter salary data. Most workers in this role earn between $47.07 and $61.01 per hour, depending on experience, location, and employer.

What does a typical day look like for a Java Back End Developer?

A typical day for a Java Back End Developer often involves writing and reviewing code, designing and implementing APIs, and collaborating with front-end developers, QA testers, and other team members to ensure seamless integration and functionality. Developers participate in daily stand-up meetings, work with version control systems, troubleshoot technical issues, and continually optimize application performance. You may also engage in code reviews, work on database design, or implement new features based on customer or business needs. This dynamic environment emphasizes both independent problem-solving and teamwork, offering continuous learning opportunities and a fast-paced, innovative workflow.

What is a Java Back End Developer job?

A Java Back End Developer is responsible for building and maintaining the server-side logic of web applications using Java. They work with databases, APIs, and server architecture to ensure smooth data processing and application functionality. Their tasks include writing efficient code, optimizing performance, and integrating front-end components. They often use frameworks like Spring Boot and Hibernate to develop scalable and secure applications.

What are the key skills and qualifications needed to thrive in the Java Back End Developer position, and why are they important?

To thrive as a Java Back End Developer, you need solid proficiency in Java programming, knowledge of frameworks like Spring or Hibernate, and experience with database management, often supported by a degree in computer science or related fields. Familiarity with tools such as Git, RESTful APIs, build automation systems (e.g., Maven/Gradle), and sometimes certifications like Oracle Certified Professional, Java SE, are highly valued. Strong problem-solving skills, attention to detail, effective communication, and a collaborative mindset help professionals excel in this role. These combined technical and soft skills are crucial for developing robust, scalable back-end systems and ensuring smooth teamwork in dynamic software development environments.

What are popular job titles related to Java Back End Developer jobs in Illinois? For Java Back End Developer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Java Back End Developer jobs in Illinois look for? The top searched job categories for Java Back End Developer jobs in Illinois are:
What are popular job titles related to Java Back End Developer jobs in IL? For Java Back End Developer jobs in IL, the most frequently searched job titles are:
Java Back End Developer jobs near you
Infographic showing various Java Back End Developer job openings in Illinois as of July 2026, with employment types broken down into 1% As Needed, 75% Full Time, 20% Part Time, and 4% Contract. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution, with an average salary of $110,112 per year, or $52.9 per hour.
Backend / Frontend Developer Intern

Backend / Frontend Developer Intern

Prospect Equities

Chicago, IL • On-site

$19.75 - $26/hr

Internship

Re-posted 26 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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