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Freelance Java Back End Developer Jobs in Mundelein, IL

Senior Java (Back-End) Developer

Chicago, IL · On-site

$124K - $161K/yr

Qualifications: 8+ years of experience building java / golang backend applications. Bachelor of ... Rock-solid programming skills. Experience with MongoDB. Experience with JSON, and RESTful web ...

Proficiency in RESTful APIs and API * Healthcare domain Experience preffered Dont Submit Java/J2EE Developer or Java Full Stack Developer or Java Back End Developer. But Java Full Stack with NodeJS ...

Senior Java Developer

Chicago, IL · On-site

$59 - $75.25/hr

... Programming with Java 1.8, JUnit/Mockito, Spring Boot, MicroServices design, Maven, Tomcat ... Java back-end development and skills with Spring-boot framework. Real life experience with ...

Java Developer with AI

Chicago, IL · On-site

$45 - $48.27/hr

Java Developer - Notifications Platform & AI Engineering Location: Chicago, IL Duration: Temp - 9 ... Build cloud-native backend services using Java, Spring Boot, Apache Camel, microservices ...

New

Architect/Lead Java Engineer (Contract-to-Hire) * Experince : 8-12 years * Location: Chicago, IL ... Design and develop scalable backend services and data processing solutions using Java. * Build and ...

New

Java Developer

Chicago, IL · On-site +1

$52.50 - $68/hr

We are seeking a highly skilled Java Developer with strong expertise in modern backend development. The ideal candidate will have hands-on experience in Java (21+), Spring Boot, REST API development ...

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 ...

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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Freelance Java Back End Developer information

See Mundelein, IL salary details

$10

$55

$74

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

As of Jul 13, 2026, the average hourly pay for freelance java back end developer in Mundelein, IL is $55.77, according to ZipRecruiter salary data. Most workers in this role earn between $49.57 and $64.28 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Freelance Java Back End Developer, and why are they important?

To thrive as a Freelance Java Back End Developer, you need strong proficiency in Java, object-oriented programming, RESTful API design, and experience with frameworks like Spring or Hibernate, typically supported by a relevant degree or proven project portfolio. Familiarity with version control systems (such as Git), build tools (like Maven or Gradle), cloud platforms, and continuous integration/continuous deployment (CI/CD) pipelines is highly valued. Outstanding problem-solving abilities, self-motivation, and effective client communication set top freelancers apart. These skills ensure you can deliver robust, maintainable solutions independently and build lasting client relationships.

What are some common challenges faced by Freelance Java Back End Developers when working with multiple clients simultaneously?

Freelance Java Back End Developers often juggle several projects at once, which can present challenges in time management, prioritizing tasks, and aligning with different client expectations. Each client may use distinct tech stacks, communication tools, and development processes, requiring adaptability and strong organizational skills. Clear communication, setting realistic deadlines, and using project management tools can help freelancers maintain quality and meet deliverables across diverse projects.

What does a Freelance Java Back End Developer do?

A Freelance Java Back End Developer is a software professional who specializes in building and maintaining the server-side logic of web applications using the Java programming language. They work independently on a contract basis for various clients, handling tasks such as developing APIs, managing databases, and ensuring the performance and security of the application’s back end. Their responsibilities often include collaborating with front-end developers, integrating third-party services, and troubleshooting server-side issues. Freelancers in this role can work remotely or onsite, offering flexibility to both clients and developers.

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

AspectFreelance Java Back End DeveloperFreelance Java Software Engineer
CredentialsJava certifications, experience in backend frameworksJava certifications, broader software development skills
Work EnvironmentRemote, project-based, client-specificRemote or on-site, project or product-focused
Industry UsagePrimarily in backend development projectsInvolved in full software development lifecycle
Search & Comparison IntentFocus on backend Java skillsBroader software development expertise

While both roles involve Java skills, a Freelance Java Back End Developer specializes in server-side development, focusing on backend systems. A Freelance Java Software Engineer may have a broader scope, including full-stack or application development, often requiring additional skills beyond backend work.

Java BackEnd Developer

$51.25 - $66.50/hr

Full-time

Posted 24 days ago


Job description

Job Title: Java BackEnd Developer
Work Location: Deerfield, IL
Duration: 8+ Months
Job Description:
Looking for a Sr. Java Developer to join their IT digital and marketing development team. This person will help assist with a project that involves integrating marketplaces into the company.
Must-Haves:
  • 5+ years of experience as a Sr. Java Developer
  • Proficient in Spring Boot
  • Proficient in REST API's
  • Proficient in Eclipse or IntelliJ
  • Experience with BitBucket or another GIT repository