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On Call Java Back End Developer Jobs in Chicago, IL

Apexon

Java Developer

Chicago, IL

$52.50 - $68/hr

... or backend integrations. • Bachelor's degree in Computer Science, Software Engineering, or a ... or Java-related technologies. • Exposure to domain-specific applications in industries such as ...

Zortech Solutions

Java Developer III

Chicago, IL · Hybrid

$52.50 - $68/hr

Java Developer III Location: Chicago, IL-Hybrid Duration: 12+ Months Note: Top 3 skill sets ... backend with EC2, DynamoDB, Microservices, etc. for internal use. • Serve as a technical expert ...

Addison Group

Lead Java Developer

Addison, IL · On-site

Design and architect scalable solutions for our public- and consultant facing web sites, back-end ... Mentors other developers on the team or across other teams. Self motivated and directed, with the ...

Photon

Android Developer

Deerfield, IL

$56.75 - $74.50/hr

Evaluate compatibility of applications with existing APIs, backend systems, and mobile device ... Strong proficiency in Kotlin and/or Java. * Experience with Android SDK, Android Studio, and ...

Altruist

Staff Back End Engineer, Trading

Chicago, IL · On-site +1

... Back End Engineers to join our growing Trading team. This role will be remote for candidates ... speed on modern tech stacks (Java, Spring Boot, Microservices, AWS, Postgres, Kubernetes)

Addison Group

Lead Java Developer

Addison, IL · On-site

Design and architect scalable solutions for our public- and consultant facing web sites, back-end ... Mentors other developers on the team or across other teams. Self motivated and directed, with the ...

Kaav Inc.

Developer - Java with MERNSTACK

Chicago, IL

$54 - $69.75/hr

... Java Spring Boot with MERN Stack Developer to join our team. The ideal candidate should have strong ... the backend and MERN (MongoDB, Express.js, React.js, Node.js) stack for the frontend.

United Airlines

Java Developer

Chicago, IL · On-site

$86K - $127K/yr

Job Title : Sr Java Developer * Location : Chicago /Riverwoods IL * Type : FTE ( No Subcontractor ... Strong experience in Java development ( Java 17/21 Spring Boot, Microservices) and backend services

AceStack LLC

Java Angular with GCP

Chicago, IL

$52.50 - $68/hr

... Developer with hands-on experience in Google Cloud Platform (GCP) to build scalable, cloud-native applications. • The ideal candidate will have strong backend expertise in Java and frontend ...

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All JobsOn Call Java Back End Developer JobsOn Call Java Back End Developer Jobs in Chicago, IL

On Call Java Back End Developer information

See Chicago, IL salary details

$16

$58

$79

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

As of Jun 9, 2026, the average hourly pay for on call java back end developer in Chicago, IL is $58.41, according to ZipRecruiter salary data. Most workers in this role earn between $50.53 and $65.38 per hour, depending on experience, location, and employer.

What is the difference between On Call Java Back End Developer vs Java Software Engineer?

AspectOn Call Java Back End DeveloperJava Software Engineer
Primary RoleProvides on-demand backend support, troubleshooting, and quick fixes for Java applicationsDesigns, develops, and maintains Java-based software solutions
Work EnvironmentOften on-call, reactive, and support-focusedDevelopment-focused, project-oriented
Required SkillsJava, troubleshooting, problem-solving, quick responseJava, software design, coding, testing
CertificationsJava certifications beneficialJava certifications beneficial

While both roles require Java expertise and similar certifications, the On Call Java Back End Developer primarily handles urgent support and troubleshooting tasks, often working outside regular hours. In contrast, the Java Software Engineer focuses on designing and developing Java applications in a proactive manner. The roles differ mainly in their focus—reactive support versus proactive development—though they share core Java skills and certifications.

What are the most commonly searched types of Java Back End Developer jobs in Chicago, IL? The most popular types of Java Back End Developer jobs in Chicago, IL are:
On Call Java Back End Developer jobs near you
Java Developer

Java Developer

Apexon

Chicago, IL

$52.50 - $68/hr

Other

Medical, Dental, Vision

Posted yesterday

Job description

About Apexon
Apexon is a digital-first technology services firm specializing in accelerating business transformation and delivering human-centric digital experiences.
We bring together distinct core competencies in AI, analytics, app development, cloud, commerce, CX, data, DevOps, IoT, mobile, quality engineering and UX, with proprietary accelerators and platforms.
Backed by Goldman Sachs Asset Management and Everstone Capital, Apexon now has a global presence of 15 offices (and 10 delivery centers) across four continents.
We enable #HumanFirstDIGITAL
About the Role
As a Mid-Level Java Developer at Apexon, you will design, develop, and optimize scalable applications and services that leverage cutting-edge technologies like Java, SpringBoot, MongoDB, Kafka, and AWS. You will play a pivotal role in implementing microservices architectures and RESTful APIs to enhance system performance and reliability. This role is critical to delivering robust solutions that address complex business needs while ensuring seamless integration with enterprise systems.
Key Responsibilities
• Develop and maintain high-performing Java-based applications using SpringBoot and RESTful APIs.
• Implement microservices architectures to ensure modularity, scalability, and fault tolerance across distributed systems.
• Collaborate with cross-functional teams to integrate Python-based components and data processing pipelines.
• Optimize database operations using MongoDB, ensuring high availability and performance in large-scale systems.
• Design and implement event-driven systems using Kafka for real-time data streaming and processing.
• Leverage AWS cloud services for deployment, monitoring, and scaling of applications.
• Conduct unit testing and ensure code quality through rigorous CI/CD practices.
• Participate in architectural reviews and provide technical recommendations to enhance system design.
Required Qualifications
• 5-8 years of professional experience in Java development, including hands-on experience with SpringBoot.
• Proficiency in building and consuming RESTful APIs and implementing microservices architectures.
• Strong understanding of MongoDB, Kafka, and cloud services like AWS.
• Experience with Python for scripting or backend integrations.
• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Solid understanding of software development life cycle (SDLC) and Agile methodologies.
Preferred Qualifications
• Experience with containerization and orchestration tools like Docker and Kubernetes.
• Familiarity with DevOps practices, including CI/CD pipelines and infrastructure automation.
• Knowledge of distributed systems and event-driven architecture.
• Certification in AWS or Java-related technologies.
• Exposure to domain-specific applications in industries such as BFSI, healthcare, or e-commerce.
What We Offer
• Competitive compensation aligned with Not specified market standards
• Comprehensive benefits package
• Professional development and upskilling opportunities
• Learning and career growth programs
• Flexible work arrangements
• Collaborative and inclusive work environment
Work Environment
• Location: Richardson, TX
• Work Mode: On-site based on project requirements
Our Commitment to Diversity
We are an equal opportunity employer committed to building a diverse and inclusive team. We welcome candidates from all backgrounds and encourage individuals from underrepresented groups to apply.
Our Perks and Benefits:
Our benefits and rewards program has been thoughtfully designed to recognize your skills and contributions, elevate your learning/upskilling experience and provide care and support for you and your loved ones. As an Apexon Associate, you get continuous skill-based development, opportunities for career advancement, and access to comprehensive health and well-being benefits and assistance.
We also offer:
oHealth Insurance with Dental & Vision
o401K Plan
oLife Insurance, STD & LTD
oPaid Vacations & Holidays
oPaid Parental Leave
oFSA Dependent & Limited Purpose care

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