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Senior Java Backend Developer Jobs in Belleville, IL

Atria Group LLC

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Unigroup is in need of a senior Java developer. They will be part of a 10+ person team developing on a large rewrite of their enterprise system along with smaller projects as well. This individual ...

Netrist Solutions, LLC.

Java Developer (Remote)

Shiloh, IL · Remote

$52.25 - $67.50/hr

Java Developer We are seeking a Java Developer to support a command and control system for the ... This role focuses on designing and maintaining mission critical backend services in Java and .NET, ...

Leidos

Mid-Level Backend Software Engineer

Hartford, IL

$87K - $157K/yr

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... Design, develop, test, and maintain backend application components using Java or Python * REST API ...

Leidos

Mid-Level Backend Software Engineer

Roxana, IL

$87K - $157K/yr

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... Design, develop, test, and maintain backend application components using Java or Python * REST API ...

Leidos

Mid-Level Backend Software Engineer

Saint Louis, MO · On-site

$87K - $157K/yr

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... Design, develop, test, and maintain backend application components using Java or Python * REST API ...

Leidos

Mid-Level Backend Software Engineer

Caseyville, IL · On-site

$87K - $157K/yr

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... Design, develop, test, and maintain backend application components using Java or Python * REST API ...

Leidos

Mid-Level Backend Software Engineer

Venice, IL

$87K - $157K/yr

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... Design, develop, test, and maintain backend application components using Java or Python * REST API ...

Leidos

Mid-Level Backend Software Engineer

Fenton, MO · On-site

$87K - $157K/yr

... senior levels, you'll thrive here. We're hiring a Backend Software Engineer to support a ... Design, develop, test, and maintain backend application components using Java or Python * REST API ...

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All JobsSenior Java Backend Developer JobsSenior Java Backend Developer Jobs in Belleville, IL

Senior Java Backend Developer information

See Belleville, IL salary details

$62.2K

$135.8K

$185K

How much do senior java backend developer jobs pay per year?

As of Jun 19, 2026, the average yearly pay for senior java backend developer in Belleville, IL is $135,826.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,000.00 and $152,000.00 per year, depending on experience, location, and employer.

What is a Senior Java Backend Developer job?

A Senior Java Backend Developer is responsible for designing, implementing, and maintaining the server-side logic of applications using Java. They work with databases, APIs, and cloud services to ensure high performance and scalability. Additionally, they collaborate with front-end developers, DevOps teams, and business stakeholders to deliver robust and secure solutions. Seniors are expected to mentor junior developers and contribute to architectural decisions and best practices.

What are the typical daily responsibilities of a Senior Java Backend Developer?

Senior Java Backend Developers usually spend their days designing and implementing backend components, reviewing code, and optimizing system performance. You may take part in architecture discussions, mentor junior developers, and troubleshoot complex technical issues. Collaboration with front-end developers, QA testers, and project managers is frequent to ensure seamless integration and successful product delivery. Additionally, you might be responsible for maintaining system documentation and keeping up-to-date with new technologies relevant to backend development. Overall, the role combines hands-on coding with leadership and cross-functional teamwork.

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

To thrive as a Senior Java Backend Developer, you need deep knowledge of Java, object-oriented design, RESTful APIs, and database systems, typically backed by a degree in computer science or related field and several years of relevant experience. Expertise in frameworks like Spring, ORM tools such as Hibernate, version control systems like Git, and, often, certifications such as Oracle Certified Professional Java Programmer are valued. Strong problem-solving, leadership, and clear communication skills help in mentoring junior developers and collaborating across teams. These competencies ensure robust, scalable backend solutions and effective team coordination in complex software projects.

What are the most commonly searched types of Java Backend Developer jobs in Belleville, IL? The most popular types of Java Backend Developer jobs in Belleville, IL are:
What are popular job titles related to Senior Java Backend Developer jobs in Belleville, IL? For Senior Java Backend Developer jobs in Belleville, IL, the most frequently searched job titles are:
What job categories do people searching Senior Java Backend Developer jobs in Belleville, IL look for? The top searched job categories for Senior Java Backend Developer jobs in Belleville, IL are:
What cities near Belleville, IL are hiring for Senior Java Backend Developer jobs? Cities near Belleville, IL with the most Senior Java Backend Developer job openings:
Senior Java Backend Developer jobs near you
Java/Spring boot Developer

Java/Spring boot Developer

Avani Technology Solutions, Inc.

Saint Louis, MO • On-site

$49.25 - $63.75/hr

Full-time

Posted 13 days ago

Job description

Job Description:
  • Senior Java/Spring boot Developer Senior developer with following skills (no hard and fast expectation for years of experience but 5+ is good with them)
  • Hands on experience in implementing Micro services and Architecture using Apache open source projects like Mesos, Kafka,Cassandra, Hadoop.
  • Apache Tomcat, Spring Webservices, Spring Boot framework
  • Java and Web Services (RESTFul APIs)
  • Experience in implementing Docker containers for elastic scalability
  • Well versed with various exception handling techniques
  • Experience in developing, monitoring and logging framework
  • Experience in working in Telcos, especially DTV, Voice and HSD over DOCSIS type work.
  • Be able to create and interpret design documents based on specific design patterns Above all candidate should be Self-motivated and self-starter, be able to pick up and share knowledge swiftly, with "can do attitude" with good oral and written communication skills More specifically:
  • Use of Log4J or Logback (successor to Log4J) for generation of standardized disk log messages within services and applications
  • Experience creating test clients with SOAPUI
  • Experience performing performance testing of web services with JMeter and scripting input parameters from external input files
  • Experience with creating new web service and GUI app project trees using standard Maven 3.x directory tree layout
  • Experience using JUnit to create automated unit tests of all methods with web services using mock data

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