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Java Developer Volunteer Jobs in Chicago, IL (NOW HIRING)

Caterpillar

Software Engineer

Chicago, IL · On-site

$97K - $158K/yr

Develop, test, and maintain backend RESTful APIs using Java, Spring Boot, and AWS cloud services ... Voluntary Benefits and Employee Discounts* * Career Development* * Incentive bonus* * Disability ...

tastytrade

Senior Site Reliability Engineer

Chicago, IL · On-site

$180K - $200K/yr

Production-quality coding experience in Ruby and/or Java, plus Python for automation. * A track ... Two Paid Volunteer Days Off * Daily catered lunch when in the office * Full kitchen with snacks and ...

tastylive

Senior Site Reliability Engineer

Chicago, IL · On-site

$180K - $200K/yr

Production-quality coding experience in Ruby and/or Java, plus Python for automation. * A track ... Two Paid Volunteer Days Off * Daily catered lunch when in the office * Full kitchen with snacks and ...

tastylive

Senior Site Reliability Engineer

Chicago, IL · Hybrid

$180K - $200K/yr

Production-quality coding experience in Ruby and/or Java, plus Python for automation. * A track ... Two Paid Volunteer Days Off * Daily catered lunch when in the office * Full kitchen with snacks and ...

tastytrade

Senior Site Reliability Engineer

Chicago, IL · Hybrid

$180K - $200K/yr

Production-quality coding experience in Ruby and/or Java, plus Python for automation. * A track ... Two Paid Volunteer Days Off * Daily catered lunch when in the office * Full kitchen with snacks and ...

SEI Investments

Software Engineer II

Chicago, IL · Hybrid

$105K - $115K/yr

Demonstrated experience with the following: .Net or Java, JavaScript/TypeScript, SASS, HTML ... We offer our employees paid parental leave, back-up childcare arrangements, paid volunteer days ...

SEI Investments

Software Engineer II

Chicago, IL · On-site

$105K - $115K/yr

Demonstrated experience with the following: .Net or Java, JavaScript/TypeScript, SASS, HTML ... We offer our employees paid parental leave, back-up childcare arrangements, paid volunteer days ...

TransUnion

Directors, Software Engineering

Chicago, IL · On-site

$173K - $253K/yr

... in C and C++, Java, SOAP, JSON, Google Protocol Buffer, Shell Scripting, GIT, Mercurial ... Lean DevOps; algorithms, data structures. Job Requirements Master's degree in Computer Science ...

Supernova Technology

Senior Software Engineer

Chicago, IL · On-site

$140K - $160K/yr

... Java and Python. * Design, build, and maintain robust ETL/data integration pipelines to support ... Champion the use of modern DevOps tools, including Docker, to support efficient development and ...

Caterpillar

Lead Software Engineer

Chicago, IL · On-site

$128K - $208K/yr

Lead the design and development of enterprise-scale REST APIs and microservices using Java, Spring ... Hands-on experience building and maintaining CI/CD pipelines using Azure DevOps, Jenkins, GoCD, or ...

Pampered Chef LTD

Senior Software Engineer

Addison, IL · On-site

$125K - $135K/yr

Backend: Node.js, Java, REST APIs * Eventing: Kafka * Cloud: AWS (EC2, S3, CloudFormation, Lambda ... Additional voluntary benefits * 401k match * Flex PTO * Paid Parental Leave * 30%+ discount on ...

Supernova Technology

Junior Software Engineer

Chicago, IL · On-site

$80K - $100K/yr

This is the perfect opportunity for a passionate software developer to get his or her foot in the ... Java, C/C++, and JavaScript. Python is a plus * Hands-on practice on Java Spring Framework and ...

Morningstar, Inc.

Senior Software Engineer

Chicago, IL · On-site

$153K/yr

Object-oriented programming in Python/Java, including OOP design patterns and UML architecture ... Paid volunteering days * 15+ Employee Resource & Affinity Groups Morningstar's hybrid work ...

Morningstar

Senior Software Engineer

Chicago, IL · On-site +1

$153K/yr

Object-oriented programming in Python/Java, including OOP design patterns and UML architecture ... Paid volunteering days * 15+ Employee Resource & Affinity Groups Morningstar's hybrid work ...

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Java Developer Volunteer information

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How much do java developer volunteer jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for java developer volunteer in Chicago, IL is $58.41, according to ZipRecruiter salary data. Most workers in this role earn between $50.53 and $65.38 per hour, depending on experience, location, and employer.

What types of projects or tasks can I expect to work on as a Java Developer Volunteer?

As a Java Developer Volunteer, you might work on a range of projects, such as developing new software features, fixing bugs, writing unit tests, or helping maintain existing Java applications for nonprofits or community organizations. You could also assist in documentation, code reviews, or collaborating on open-source initiatives, depending on the organization's needs. These roles often provide exposure to agile development practices and teamwork with other engineers, designers, and project managers. Volunteering in this capacity not only helps worthwhile causes but also allows you to expand your portfolio and gain practical experience with real-world applications.

What are the key skills and qualifications needed to thrive as a Java Developer Volunteer?

To excel as a Java Developer Volunteer, you should have a solid grasp of Java programming, object-oriented design, and version control systems, often demonstrated through coursework, certifications, or hands-on project experience. Familiarity with tools like Eclipse or IntelliJ IDEA, build systems (Maven or Gradle), and collaborative platforms such as GitHub is commonly expected. Strong communication, teamwork, and a willingness to learn set exceptional volunteers apart. These skills and qualities ensure you can contribute effectively to projects, adapt to dynamic team needs, and make the most meaningful impact in volunteer settings.

What is a Java Developer Volunteer?

A Java Developer Volunteer role involves contributing to software development projects without financial compensation. Volunteers typically assist in coding, debugging, testing, and maintaining Java-based applications for nonprofits, open-source projects, or startups. This role helps developers gain experience, build portfolios, and support meaningful initiatives while collaborating with teams.

What are the most commonly searched types of Java Developer jobs in Chicago, IL?

The most popular types of Java Developer jobs in Chicago, IL are:

What are popular job titles related to Java Developer Volunteer jobs in Chicago, IL?

For Java Developer Volunteer jobs in Chicago, IL, the most frequently searched job titles are:

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The top searched job categories for Java Developer Volunteer jobs in Chicago, IL are:

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Java Developer Volunteer jobs near you
Infographic showing various Java Developer Volunteer job openings in Chicago, IL as of August 2026, with employment types broken down into 95% Full Time, and 5% Contract. Highlights an 73% In-person, 21% Hybrid, and 6% Remote job distribution, with an average salary of $121,486 per year, or $58.4 per hour.

Software Engineer

Caterpillar

Chicago, IL • On-site

$97K - $158K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 13 days ago

Caterpillar Inc. rating

7.4

Company rating: 7.4 out of 10

Based on 480 frontline employees who took The Breakroom Quiz

288th of 490 rated machine equipment manufacturers

Job description

Career Area:
Technology, Digital and Data
Job Description:
Your Work Shapes the World at Caterpillar Inc.
When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.
JOB PURPOSE:
Join Cat Digital Platform and help build the technology that powers Caterpillar's digital future. Our platform fuels the secure flow of data, insights, and services connecting customers, dealers, machines, and applications worldwide. As a Software Engineer, you will develop, test, and deliver scalable, secure, and customer-focused cloud solutions while contributing to the team's technical excellence and delivery success.
JOB DUTIES:
  • Develop, test, and maintain backend RESTful APIs using Java, Spring Boot, and AWS cloud services.
  • Develop and maintain API contracts, payload schemas, and OpenAPI/Swagger specifications.
  • Implement integrations using established authentication and authorization standards, including OAuth 2.0.
  • Develop automated unit and integration tests and participate in performance, load, and quality testing activities.
  • Participate in peer code reviews and contribute to engineering best practices and continuous improvement initiatives.
  • Troubleshoot and resolve application, integration, and production support issues.
  • Contribute to CI/CD pipeline automation, deployment processes, and operational support activities.
  • Create and maintain technical documentation, deployment guides, and operational runbooks.

What you will have:
  • Software Development: Knowledge of software development tools and activities; ability to produce software products or systems in line with product requirements.
  • Software Product Design/Architecture: Knowledge of software product design; ability to convert market requirements into the software product design.
  • Decision Making and Critical Thinking: Knowledge of the decision-making process and associated tools and techniques; ability to accurately analyze situations and reach productive decisions based on informed judgment.
  • Effective Communications: Understanding of effective communication concepts, tools and techniques; ability to effectively transmit, receive, and accurately interpret ideas, information, and needs through the application of appropriate communication behaviors.

Top candidates will also have:
  • Experience developing RESTful APIs and microservices using Java 21+, Spring Boot, API gateway technologies such as Apigee, and cloud platforms such as AWS, Azure, or GCP.
  • Understanding of API security concepts, including OAuth 2.0, JWT, and service-to-service communication patterns.
  • Strong understanding of data structures and object-oriented design principles.
  • Experience with event-driven architectures and messaging technologies such as Kafka, AWS SQS, AWS SNS, AWS Kinesis, or RabbitMQ.
  • Experience with relational and NoSQL databases such as Aurora, DynamoDB, PostgreSQL, MySQL, Oracle, MongoDB, Redis, or Elasticsearch.
  • Experience developing automated unit and integration tests and deploying applications using CI/CD tools such as Azure DevOps, Jenkins, GitHub Actions, or similar platforms.
  • Experience working in Agile/Scrum teams and collaborating effectively across engineering, product, and business stakeholders.

Additional Details:
  • This position requires the candidate to be based in Chicago, IL
  • Relocation assistance is not available for this position
  • Visa sponsorship is not available for this position

Summary Pay Range:
$97,530.00 - $158,480.00
Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.
Benefits:
Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.
  • Medical, dental, and vision benefits*
  • Paid time off plan (Vacation, Holidays, Volunteer, etc.)*
  • 401(k) savings plans*
  • Health Savings Account (HSA)*
  • Flexible Spending Accounts (FSAs)*
  • Health Lifestyle Programs*
  • Employee Assistance Program*
  • Voluntary Benefits and Employee Discounts*
  • Career Development*
  • Incentive bonus*
  • Disability benefits
  • Life Insurance
  • Parental leave
  • Adoption benefits
  • Tuition Reimbursement

* These benefits also apply to part-time employees
Visa Sponsorship is not available for this position.
Posting Dates:
August 12, 2026 - August 23, 2026
Any offer of employment is conditioned upon the successful completion of a drug screen.
Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.
Not ready to apply? Join our Talent Community.

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