Backend Web and App Developer At Smartz Inc, we rely on our dynamic team of engineers to solve the ... using Java / C++ , Bash * 1+ year of using these apps/tools under Linux: Nginx , Git , Mysql ...
Quick apply
Backend Web and App Developer At Smartz Inc, we rely on our dynamic team of engineers to solve the ... using Java / C++ , Bash * 1+ year of using these apps/tools under Linux: Nginx , Git , Mysql ...
Quick apply
Backend Web and App Developer At Smartz Inc, we rely on our dynamic team of engineers to solve the ... using Java / C++ , Bash * 1+ year of using these apps/tools under Linux: Nginx , Git , Mysql ...
Chicago, IL · Remote
$51.50 - $67/hr
Interface with Java backend APIs to provide the UI with proper data * Package and deploy applications via CI/CD pipelines into a cloud environment (Azure) * Collaborate with Backend Developers, HTML ...
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Chicago, IL · Remote
$51.50 - $67/hr
Interface with Java backend APIs to provide the UI with proper data * Package and deploy applications via CI/CD pipelines into a cloud environment (Azure) * Collaborate with Backend Developers, HTML ...
Principal Developer (Java/AWS) Location: Chicago, IL - Hybrid Duration: 3-Month Contract-to-Hire ... Design and develop RESTful APIs and backend services supporting mission-critical business functions.
Principal Developer (Java/AWS) Location: Chicago, IL - Hybrid Duration: 3-Month Contract-to-Hire ... Design and develop RESTful APIs and backend services supporting mission-critical business functions.
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
REQUIRED CREDENTIALS 10+ years of professional backend engineering experience with Java and Spring Boot Demonstrated technical leadership of a backend team or workstream - setting architecture ...
New
REQUIRED CREDENTIALS 10+ years of professional backend engineering experience with Java and Spring Boot Demonstrated technical leadership of a backend team or workstream - setting architecture ...
New
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 ...
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 ...
Chicago, IL · On-site
$150 - $200/hr
Java 21 and Spring Boot 3.x microservice development * Service and API design across a ... Own the backend architecture: service boundaries, data model, event contracts, and the integration ...
New
Chicago, IL · On-site
$150 - $200/hr
Java 21 and Spring Boot 3.x microservice development * Service and API design across a ... Own the backend architecture: service boundaries, data model, event contracts, and the integration ...
New
$120K - $190K/yr
Build internal tools and dashboards that improve operational visibility and developer workflows ... Strong experience with backend languages such as Node.js, Go, Python, Java, or similar.
Quick apply
$120K - $190K/yr
Build internal tools and dashboards that improve operational visibility and developer workflows ... Strong experience with backend languages such as Node.js, Go, Python, Java, or similar.
REQUIRED CREDENTIALS • 10+ years of professional backend engineering experience with Java and Spring Boot • Demonstrated technical leadership of a backend team or workstream - setting ...
New
REQUIRED CREDENTIALS • 10+ years of professional backend engineering experience with Java and Spring Boot • Demonstrated technical leadership of a backend team or workstream - setting ...
New
Chicago, IL · On-site
$59 - $75.25/hr
Write, review, debug, and optimize production code actively; lead through hands-on engineering contribution rather than delegation. * Build cloud-native backend services using Java, Spring Boot ...
Chicago, IL · On-site
$59 - $75.25/hr
Write, review, debug, and optimize production code actively; lead through hands-on engineering contribution rather than delegation. * Build cloud-native backend services using Java, Spring Boot ...
Chicago, IL · On-site
$50 - $55/hr
Java Developer Industry: Information Technology / Software Development Location (City, State ... Develop and maintain backend applications utilizing Java and Spring Boot. * Design, build, and ...
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Chicago, IL · On-site
$50 - $55/hr
Java Developer Industry: Information Technology / Software Development Location (City, State ... Develop and maintain backend applications utilizing Java and Spring Boot. * Design, build, and ...
Chicago, IL · On-site
$85 - $90/hr
We are seeking a skilled and experienced Back-End Engineer to join our team as a Lead in Application Development with expertise in Java. The ideal candidate will play a critical role in designing ...
New
Chicago, IL · On-site
$85 - $90/hr
We are seeking a skilled and experienced Back-End Engineer to join our team as a Lead in Application Development with expertise in Java. The ideal candidate will play a critical role in designing ...
New
Chicago, IL · On-site
$52.50 - $68/hr
Resource 1 is in need of a Java Developer for a long-term contract. This is hybrid/ remote, so ... and back-end (SQL). Individual should have experience with full life-cycle development, from ...
Chicago, IL · On-site
$52.50 - $68/hr
Resource 1 is in need of a Java Developer for a long-term contract. This is hybrid/ remote, so ... and back-end (SQL). Individual should have experience with full life-cycle development, from ...
Chicago, IL · On-site
$150 - $200/hr
Write, review, debug, and optimize production code actively; lead through hands-on engineering contribution rather than delegation. * Build cloud-native backend services using Java, Spring Boot ...
New
Chicago, IL · On-site
$150 - $200/hr
Write, review, debug, and optimize production code actively; lead through hands-on engineering contribution rather than delegation. * Build cloud-native backend services using Java, Spring Boot ...
New
Roxana, IL · On-site
$87K - $157K/yr
Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...
Roxana, IL · On-site
$87K - $157K/yr
Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...
East Saint Louis, IL · On-site
$87K - $157K/yr
Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...
East Saint Louis, IL · On-site
$87K - $157K/yr
Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...
Chicago, IL · On-site
$52.50 - $68/hr
Core Java Developer Work Location: Chicago, IL (Hybrid Role) Must have skills: AWS, Microservices ... Identify and address performance bottlenecks in both front-end and back-end components, ensuring ...
Chicago, IL · On-site
$52.50 - $68/hr
Core Java Developer Work Location: Chicago, IL (Hybrid Role) Must have skills: AWS, Microservices ... Identify and address performance bottlenecks in both front-end and back-end components, ensuring ...
Principal Developer AWS/JAVA Location: Chicago, IL (Hybrid) Local only Duration: 6+ Months Contract ... Design and develop RESTful APIs and backend services supporting mission-critical business functions.
Principal Developer AWS/JAVA Location: Chicago, IL (Hybrid) Local only Duration: 6+ Months Contract ... Design and develop RESTful APIs and backend services supporting mission-critical business functions.
$9.78 - $15.35
4% of jobs
$15.35 - $20.92
0% of jobs
$20.92 - $26.49
0% of jobs
$26.49 - $32.06
0% of jobs
$32.06 - $37.63
2% of jobs
$37.63 - $43.20
7% of jobs
$47.03 is the 25th percentile. Wages below this are outliers.
$43.20 - $48.77
17% of jobs
The median wage is $53.81 / hr.
$48.77 - $54.34
22% of jobs
$59.91 is the 75th percentile. Wages above this are outliers.
$54.34 - $59.91
23% of jobs
$59.91 - $65.48
17% of jobs
$65.48 - $71.05
8% of jobs
$9
$52
$71
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.
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.
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.
For Java Back End Developer jobs in Illinois, the most frequently searched job titles are:
The top searched job categories for Java Back End Developer jobs in Illinois are:
For Java Back End Developer jobs in IL, the most frequently searched job titles are:

Full-time
Medical, Dental, Vision, Life, Retirement, PTO
Re-posted 8 days ago
Integrate user-facing elements developed by front-end developers with server-side logic.
Implement, integrate, and document software platforms through the REST API framework.
Develop new features, infrastructure, and assume leadership of projects from conceptualization to deployment.
Backend Web and App Developer
At Smartz Inc, we rely on our dynamic team of engineers to solve the many challenges and puzzles that come with our rapidly evolving technical stack. We’re seeking a full stack engineer who is ready to work with new technologies and architectures in a forward-thinking organization that’s always pushing boundaries. Here, you will take complete, end-to-end ownership of projects across the entire stack. Our ideal candidate has experience building products across the stack and a firm understanding of web frameworks, APIs, databases, and multiple back-end languages. You’ll be joining a small team working at the forefront of new technology, solving the challenges that impact both the front end and back-end architecture, and ultimately, delivering amazing global user experiences.
About Us
Smartz was founded in June of 2021 by Dr. Kevin Wan who has been a successful entrepreneur in the smart home industry for more than 10 years. Our team at Smartz wants to disrupt the PropTech Industry by providing advanced AI software that is compatible with industry leading smart home devices and will provide property owners and tenants with an all-in-one solution to all of their property management needs.
Our team uses the latest mobile technologies for all features of Smartz apps, which include live video streaming/recording, motion/sound alerts, AI powered object detection, video access sharing functions, etc. We always strive to develop innovative features to create secure and smart device management experiences for our users and business partners.
Benefits and Compensation
Job Type
Job Responsibilities
Experience & Qualifications
Smartz’s commitment of diversity and inclusion is one we strive to continuously cultivate. We aim to provide everyone regardless of identity a space where they can grow and feel seen as a person first. These are more than just words to us; they are guidelines for how we build and foster our team, our leaders, and the core culture of our company. We are also an equal opportunity employer that does not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. In accordance with the law, we make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as any mental health or physical disability needs.
As a part of our commitment to health and safety, we have implemented various COVID-related health and safety requirements for our workforce. These requirements may include sharing information in the company's HRM system, regular testing, mask wearing, social distancing and daily health checks. Requirements may change in the future with the evolving public health landscape.