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Java Developer Co Op Jobs in Illinois (NOW HIRING)

We are seeking an enthusiastic and forward-thinking co-op student to drive hands-on projects that ... Analyze and structure existing engineering data (requirements, designs, BOMs, test results) for use ...

We are seeking an enthusiastic and forward-thinking co-op student to drive hands-on projects that ... Analyze and structure existing engineering data (requirements, designs, BOMs, test results) for use ...

Job Type Internship Description 2026 Summer Internship/ Co-Op Opportunity Grow your expertise, skills, and experience through the KDM Engineering 2026 Internship/ Co-Op Opportunity. KDM is a growing ...

S. degree in Environmental Engineering, Chemical Engineering, or Civil Engineering * 2+ years' experience of environmental management in an industrial setting, preferred (will consider co-op ...

Java Engineer

Chicago, IL · On-site

$100K - $120K/yr

Java Engineer Location: Chicago, IL Duration: Fulltime Skills: Java Salary: $100,000-$120,000 /Year ... Co-ordinating with offshore and onshore and delivering the solution to customer * Taking End to End ...

Internship or co-op experience in construction engineering or a related field. * Familiarity with state or municipal transportation agencies. * Knowledge of construction inspection, quantity tracking ...

Internship or co-op experience in construction engineering or a related field. * Familiarity with state or municipal transportation agencies. * Knowledge of construction inspection, quantity tracking ...

Data exploration and feature engineering * Model prototyping, training, and evaluation * Iteration based on quantitative results * Develop and evaluate ML models using enterprise datasets for use ...

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Java Developer Co Op information

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How much do java developer co op jobs pay per hour?

As of May 28, 2026, the average hourly pay for java developer co op in Illinois is $54.94, according to ZipRecruiter salary data. Most workers in this role earn between $47.50 and $61.49 per hour, depending on experience, location, and employer.

What is a Java Developer Co Op job?

A Java Developer Co-Op job is a temporary, paid position for students or recent graduates who want hands-on experience in Java development. Co-op students work with a team of developers to design, test, and maintain Java-based applications. They gain practical knowledge in coding, debugging, and software development best practices while contributing to real-world projects. This role helps bridge the gap between academic learning and professional work, preparing candidates for full-time software development roles.

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

To thrive as a Java Developer Co Op, you need a solid understanding of Java programming, object-oriented design principles, and foundational knowledge in software development, often supported by coursework or relevant project experience. Familiarity with version control systems like Git, IDEs such as IntelliJ or Eclipse, and basic knowledge of databases or web development frameworks are common requirements. Effective communication, eagerness to learn, and strong problem-solving skills help you adapt quickly and work well within a team environment. These competencies ensure you can contribute to real-world projects, collaborate with experienced developers, and gain valuable hands-on experience during your co-op term.

What types of projects or tasks will I typically work on as a Java Developer Co Op?

As a Java Developer Co Op, you can expect to support ongoing software development projects by writing and testing code, fixing bugs, and assisting in the design or implementation of new features. You may work on both backend and frontend components, collaborate with senior developers during code reviews, and contribute to team meetings or agile sprints. Your work might include developing internal tools, creating automation scripts, or participating in the documentation process. This hands-on experience is designed to give you exposure to industry best practices and the full software development lifecycle while building your professional skills.
What are the most commonly searched types of Java Developer jobs in Illinois? The most popular types of Java Developer jobs in Illinois are:
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Intern/Co-op - Refining Electrical Engineering (Fall 2026)

Intern/Co-op - Refining Electrical Engineering (Fall 2026)

Marathon Petroleum Corporation

Robinson, IL

$32.31/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 7 days ago


Marathon Petroleum rating

6.3

Company rating: 6.3 out of 10

Based on 199 frontline employees who took The Breakroom Quiz

50th of 74 rated oil and gas companies


Job description

An exciting career awaits you

At MPC, we're committed to being a great place to work - one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment.

Responsibilities:

As an Electrical Engineer at a Marathon refinery, you can expect to become familiar with industry codes and best practices, build critical thinking skills, and gain an understanding of how all engineering disciplines work together as a cohesive team. You will also gain knowledge of various aspects of a refinery by working with a team of professionals who run a specific portion of the refining process. Most often, Electrical Engineers will have an opportunity to work on more than one area of the refinery, leading to a broad understanding of how the plant operates. Finally, you will have the opportunity to expand your written and verbal presentation skills in a professional work environment.

The majority of Electrical Engineering co-ops and interns enter into the following positions:

Electrical & Instrumentation (E&I) Project Engineerswork on a variety of real-world electrical and instrumentation projects in a refinery setting. During your time at MPC, you will develop and utilize project management skills including scope alignment, cost and schedule development, and teamwork through multiple engineering phases. You will also support the area teams. We are committed to developing engineers into professional project managers who successfully manage projects of all sizes.

Reliability Electrical & Instrumentation (E&I) Engineerstroubleshoot Electrical & Instrumentation issues at the refinery. As a reliability intern, you will help analyze failures of equipment, develop solutions for recurring equipment difficulties, submit Project Request Forms (PRF's) to implement solutions, and understand equipment maintenance strategies. There will be opportunities to use electrical analysis software to solve coordination issues and run Arc Flash studies for the power system, as well as learning and understanding about how our critical Refinery Safety Instrumented Systems (SIS) are applied.

Process Control / Technical Service Engineerscan work on a wide array of projects in support of the process control systems installed throughout the refinery and products movements areas. The process control systems in the refinery provide real-time control and data acquisition functions in support of operating the refinery process and electrical equipment. Typical college co-op assignments include the following: troubleshooting system power supply problems, control system programming, hardware and software lifecycle replacement projects, installing and troubleshooting communication networks and monitoring control system performance metrics.

Qualifications:

  • Candidates must be majoring in Electrical Engineering
  • Strong academic performance
  • Candidates must be authorized to work in the US on a full-time indefinite basis without the need for employment visa sponsorship now or in the future.
  • Positions are available spring, summer, and fall semesters
  • Availability for multiple work terms is preferred
  • A valid driver's license is required
  • Concurrent enrollment in a degree seeking program
  • Military experience a plus
  • MIN - $32.31 per hour / MAX - $40.89 per hour

Learn more about Marathon Petroleum's benefits at www.mympcbenefits.com

As an energy industry leader, our career opportunities fuel personal and professional growth.

Location:

Findlay, Ohio

Job Requisition ID:

00018188

Pay Min/Max:

$0.00 - $999.99 Hourly

Grade:

HRLY1

Location Address:

539 S Main St

Additional locations:

Anacortes, Washington, Canton, Ohio, Catlettsburg, Kentucky, Detroit, Michigan, El Paso, Texas, Garyville, Louisiana, Kenai, Alaska, Mandan, North Dakota, Martinez, California, Robinson, Illinois, Salt Lake City, Utah, St Paul Park, Minnesota, Texas City, Texas, Wilmington, California

Education:

High School (Required)

Employee Group:

Part time

Employee Subgroup:

Intern

Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision-making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship or any other status protected by applicable federal, state, or local laws. If you would like more information about your EEO rights as an applicant, click here.
If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at talentacquisition@marathonpetroleum.com. Please specify the reasonable accommodation you are requesting, along with the job posting number in which you may be interested. A Human Resources representative will review your request and contact you to discuss a reasonable accommodation. Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401k matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available atmympcbenefits.com. The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program.
Equal Opportunity Employer: Veteran / Disability

We will consider all qualified Applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role.


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About Marathon Petroleum

Sourced by ZipRecruiter

Marathon Petroleum Corporation, headquartered in Findlay, Ohio, US, is a leading independent petroleum refining, marketing, and transportation company. Their official website can be found at marathonpetroleum.com. The company, part of the energy sector, was established in 1887, making it one of the oldest petroleum companies in the US. It operates an integrated refining, marketing and transportation system concentrated primarily in the Midwest, Northeast, East Coast, Southeast and Gulf Coast of the United States. This includes refineries, pipelines, and terminals that process and transport crude oil and refined products.

Industry

Oil and gas extraction

Company size

10,000+ Employees

Headquarters location

Findlay, OH, US

Year founded

1887