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Senior Java Software Engineer

ESB Technologies
Chicago, IL Contractor
POSTED ON 12/8/2025 CLOSED ON 1/4/2026

What are the responsibilities and job description for the Senior Java Software Engineer position at ESB Technologies?

Job Title : Java Developer

Job Location : Chicago, Illinois (Hybrid – 1 Day Onsite)

Job Type : Full-time Contract


Job Description:

We are looking for a Java Developer to analyse, design, code, and test Java/HTML/CSS/SQL code and web applications.

What You’ll Do

  • Analyse business requirements to determine appropriate technology solutions
  • Write code, complete programming, perform testing, and debugging of web applications
  • Design and implement web services
  • Create SQL queries and database objects
  • Work with non-technical end users as needed
  • Follow department standards and methodologies
  • Interact and communicate effectively with all levels of staff, senior management, and customers
  • Provide ad-hoc reporting and analysis as required

What You'll Need

React and Unit testing for this one is a must.


Required:

  • 9 years of experience with Java 8, 11, and higher versions
  • 5 years of experience with React and Unit Testing
  • 6 years of experience with SQL
  • 6 years of experience with JavaScript
  • 6 years of experience with CSS
  • 5 years of experience with Bootstrap
  • 5 years of experience with JPA (Java Persistence API)
  • 5 years of experience with JQuery
  • 5 years of experience with Spring Framework (including MVC)
  • Experience in agile development processes, especially Scrum
  • Excellent communication and interpersonal skills
  • Ability to work well individually and in a team environment


Preferred:

  • 6 years of experience with Eclipse IDE
  • 5 years of experience with AWS Cloud (CodeCommit, CodeBuild, CodePipeline, etc.)
  • 3 years of experience with Apache Tomcat/TomEE
  • 3 years of experience with JUnit & Selenium
  • 3 years of experience with Python
  • 3 years of experience with Jira & Confluence

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Hourly Wage Estimation for Senior Java Software Engineer in Chicago, IL
$49.00 to $64.00
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