ZipRecruiter

Log In

1

Backend Engineer Java Jobs in Illinois (NOW HIRING)

Leidos

Mid-Level Backend Software Engineer

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 ...

Leidos

Mid-Level Backend Software Engineer

Wood River, 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 ...

Leidos

Mid-Level Backend Software Engineer

Venice, 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 ...

Leidos

Mid-Level Backend Software Engineer

Belleville, 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 ...

Leidos

Mid-Level Backend Software Engineer

Maryville, 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 ...

Leidos

Mid-Level Backend Software Engineer

Dupo, 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 ...

Leidos

Mid-Level Backend Software Engineer

Hartford, 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 ...

Leidos

Mid-Level Backend Software Engineer

Caseyville, 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 ...

Leidos

Mid-Level Backend Software Engineer

Madison, 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 ...

previous pagenext page

Showing results 21-40

All JobsBackend Engineer Java JobsBackend Engineer Java Jobs in Illinois

Backend Engineer Java information

What does a backend engineer Java do?

A Backend Engineer Java is responsible for developing and maintaining the server-side logic, databases, and application programming interfaces (APIs) using the Java programming language. They ensure that the backend of web applications or software systems is efficient, secure, and scalable. Their work often involves collaborating with frontend developers, designing system architecture, and optimizing performance to handle large volumes of user requests. Backend Java engineers often use frameworks such as Spring or Hibernate and work with databases like MySQL or PostgreSQL.

What are the key skills and qualifications needed to thrive as a backend engineer Java?

To thrive as a Backend Engineer Java, you need a solid understanding of Java programming, data structures, algorithms, and experience with backend frameworks, typically supported by a relevant degree or industry experience. Familiarity with tools and technologies such as Spring Boot, RESTful APIs, relational databases, and build systems like Maven or Gradle is commonly required. Problem-solving ability, teamwork, and effective communication are crucial soft skills for excelling in collaborative and fast-paced development environments. These combined skills ensure robust, scalable backend systems that meet business needs and integrate smoothly within larger software architectures.

How does a backend engineer Java typically collaborate with frontend developers and other stakeholders in a project?

As a Backend Engineer Java, you will regularly collaborate with frontend developers to ensure seamless integration between server-side logic and user interfaces. This often involves participating in design discussions, clarifying API requirements, and troubleshooting integration issues. You’ll also engage with product managers, QA engineers, and sometimes DevOps teams to align on project goals, timelines, and deployment strategies. Effective communication is key to translating business requirements into reliable backend solutions and maintaining smooth workflows across the team.

What is the difference between Backend Engineer Java vs Backend Developer Java?

AspectBackend Engineer JavaBackend Developer Java
Primary FocusDesigning, developing, and maintaining server-side applications and systemsImplementing and coding backend functionalities based on specifications
ResponsibilitiesSystem architecture, performance optimization, API developmentWriting code, debugging, integrating databases
Skills & CertificationsJava, Spring, REST APIs, SQL, cloud platformsJava, Spring, SQL, version control, testing tools
Work EnvironmentCollaborative teams, project planning, architecture designCode implementation, debugging, feature development

Both roles require Java expertise and similar certifications, but Backend Engineer Java typically involves higher-level system design and architecture responsibilities, while Backend Developer Java focuses more on coding and implementing features. Employers often see these roles as complementary within software development teams.

What are popular job titles related to Backend Engineer Java jobs in Illinois?

For Backend Engineer Java jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Backend Engineer Java jobs in Illinois look for?

The top searched job categories for Backend Engineer Java jobs in Illinois are:

What cities in Illinois are hiring for Backend Engineer Java jobs?

Cities in Illinois with the most Backend Engineer Java job openings:

Backend Engineer Java jobs near you
Infographic showing various Backend Engineer Java job openings in Illinois as of August 2026, with employment types broken down into 90% Full Time, 5% Part Time, and 5% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution.

Backend API Developer

PROLIM Global Corporation

Peoria, IL • On-site

Full-time

Re-posted 27 days ago

Job description

Backend API Developer (Java/Spring Boot/Microservices)
Job Description
We are seeking a highly motivated Backend API Developer with strong experience in Java, Spring Boot, Microservices, and REST APIs to join our engineering team. The ideal candidate will design and develop scalable backend services that support telecom platforms and cloud-native applications.
You will work with cross-functional teams to build secure, high-performance APIs and distributed backend systems while following Agile development practices.
Required Skills
  • 5+ years of Backend Development experience - (Telecome Experience madnatory)
  • Strong experience with Java 11/17
  • Hands-on experience with Spring Boot
  • Experience developing RESTful APIs
  • Strong knowledge of Microservices Architecture
  • Experience with Spring Security, OAuth2, and JWT
  • Database experience with PostgreSQL, MySQL, Oracle, or MongoDB
  • Experience with Apache Kafka or other messaging platforms
  • Experience using Docker and Kubernetes
  • Git version control
  • CI/CD using Jenkins, GitHub Actions, or Azure DevOps
  • Strong SQL skills
  • Experience working in Agile/Scrum environments

Preferred Skills
  • Telecom industry experience (OSS/BSS, Network Management, Provisioning)
  • Cloud platforms (AWS, Azure, or GCP)
  • Spring Cloud
  • OpenAPI/Swagger
  • Redis
  • Cassandra
  • Elasticsearch
  • Monitoring tools (Grafana, Prometheus, ELK)
  • Linux environment
  • Unit testing using JUnit and Mockito

Responsibilities
  • Design and develop scalable backend APIs using Java and Spring Boot.
  • Build RESTful services and microservices.
  • Develop secure, reusable, and maintainable backend components.
  • Integrate APIs with databases and external systems.
  • Optimize application performance and scalability.
  • Implement authentication and authorization mechanisms.
  • Participate in code reviews and Agile ceremonies.
  • Troubleshoot production issues and improve system reliability.
  • Collaborate with architects, QA engineers, DevOps teams, and product stakeholders.

Qualifications
  • Bachelor's degree in Computer Science, Engineering, or a related field.
  • 5+ years of Java Backend Development experience.
  • Strong analytical and problem-solving skills.
  • Excellent communication and teamwork skills.

Nice to Have
  • Telecom domain experience
  • OSS/BSS platforms
  • 5G or Network Management exposure
  • Cloud-native application development
  • Event-driven architecture using Kafka

Apply