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Internship Java Developers Jobs in Illinois (NOW HIRING)

Serve as mentor for less experienced Software Engineers and interns at the firm, as opportunities ... NET framework focusing on C#, ASP.Net, LINQ, Lambda (expertise in equivalent frameworks in the Java ...

... want interns excited to be at the frontier of that work. We're looking for an AI Engineer Intern ... As an Java AI Engineer Intern, you'll work alongside experienced engineers to design and build ...

Our internship is designed for fast thinkers with a critical mindset and a drive to solve tough ... Proficient in coding languages such as C++, Python, or Java * A student with strong engineering ...

Our internship is designed for fast thinkers with a critical mindset and a drive to solve tough ... Proficient in coding languages such as C++, Python, or Java * A student with strong engineering ...

Lead Data Engineer

Chicago, IL · On-site

$105K - $139K/yr

Work with a team of developers with deep experience in machine learning, distributed microservices ... Utilize programming languages like Java, Scala, Python and Open Source RDBMS and NoSQL databases ...

Lead a portfolio of diverse technology projects and a team of developers with deep experience in ... Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go ...

Utilize programming languages like Java, Python, SQL, Node, Go, and Scala, Open Source RDBMS and ... At least 4 years of professional software engineering experience (Internship experience does not ...

Lead a portfolio of diverse technology projects and a team of developers with deep experience in ... Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go ...

Lead Data Engineer

Chicago, IL · On-site

$118K - $141K/yr

Work with a team of developers with deep experience in machine learning, distributed microservices ... Utilize programming languages like Java, Scala, Python and Open Source RDBMS and NoSQL databases ...

... want interns excited to be at the frontier of that work. We're looking for an AI Engineer Intern ... As an Java AI Engineer Intern, you'll work alongside experienced engineers to design and build ...

Lead a portfolio of diverse technology projects and a team of developers with deep experience in ... Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go ...

Lead a portfolio of diverse technology projects and a team of developers with deep experience in ... Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go ...

Lead a portfolio of diverse technology projects and a team of developers with deep experience in ... Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go ...

... want interns excited to be at the frontier of that work. We're looking for an AI Engineer Intern ... As an Java AI Engineer Intern, you'll work alongside experienced engineers to design and build ...

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Internship Java Developers information

What are the most commonly searched types of Java Developers jobs in Illinois? The most popular types of Java Developers jobs in Illinois are:
Software Engineering Internship (Backoffice Team) - Summer 2026

Software Engineering Internship (Backoffice Team) - Summer 2026

Gelber Group

Chicago, IL • On-site

$25/hr

Full-time, Temporary, Internship

Posted 19 days ago


Job description

Gelber Group -- Passion for Trading. Powered by Technology.

Headquartered in Chicago with offices across the United States and Europe, Gelber has set the bar as one of the industry's innovative and enduring proprietary trading firms for more than 40 years. Our collaborative and entrepreneurial culture empowers each member of our team to have a meaningful impact from the start. We pride ourselves on a flat organizational structure and focus on meritocracy. If you flourish in a fast-paced environment, have a strong work ethic, and enjoy solving real problems with real users, Gelber is right for you.

This internship will last 10–12 weeks and is flexible on start date. We are considering candidates graduating between December 2026 and August 2027, or recent graduates. This position requires in-person presence in our Chicago office located in River West, adjacent to the Merchandise Mart and convenient to public transportation.

Position Overview

We are seeking a highly motivated individual to participate in a summer program focused on designing and building a Custom Reporting Framework within our Backoffice system.

This project centers on developing a web-based interface that enables non-technical stakeholders to generate flexible financial statements without requiring custom engineering support. The goal is to provide a scalable, in-house reporting solution that improves usability, efficiency, and long-term maintainability.

We will provide the business context and technical guidance needed to succeed, while giving you meaningful ownership over a production-facing system used by Accounting and Settlement teams.

What You'll Do

  • Design and build a web-based UI for generating custom financial reports
  • Enable users to pull from flexible data sources, including trades, positions, pricing, and fees
  • Implement filtering, sorting, grouping, and transformation capabilities within reports
  • Allow users to save report configurations for future use, with potential scheduling capabilities
  • Partner directly with Accounting and Settlement stakeholders to gather requirements and validate outputs
  • Deliver a production-ready component integrated into our Backoffice infrastructure
  • Produce clear technical and user documentation and present your results at the end of the internship

Goals

  • Deliver a valuable internal tool used by Backoffice stakeholders
  • Reduce the burden of ad hoc report generation on the development team
  • Provide a controlled, customizable in-house reporting solution
  • Build strong habits around stakeholder collaboration, iterative development, and documentation
  • Gain exposure to financial systems, reporting workflows, and operational infrastructure in a trading environment

Qualifications

  • Progress toward a bachelor's or master's degree in Computer Science or related field (Junior standing or higher preferred)
  • Strong problem-solving ability and comfort working in an existing codebase
  • Familiarity with web fundamentals (HTTP methods, client-server architecture, HTML/CSS)
  • At least 1 year of experience using C# and/or Java
  • Exposure to TypeScript and React is beneficial
  • Curiosity, self-motivation, and strong communication skills—especially when working with non-technical stakeholders
  • Interest in financial markets is helpful, but not required

The approximate hourly rate for this position in Chicago, IL is $25/hr. This is a temporary role and is not eligible for employee benefits.

Why Intern at Gelber?

  • Brand new office in the heart of Chicago's River North neighborhood, attached to the Merchandise Mart and "EL" stop and a short walk from both Ogilvie and Union Train Stations
  • Comprehensive 10-week program, running from June to August 2026
  • Catered lunch provided Tuesday, Wednesday, & Thursdays and stocked pantry daily
  • Social events and work/life balance that will allow you time to enjoy the Chicago summer
  • Office amenities including a golf simulator, pool table, and company paid on-site gym
  • Casual, relaxed dress code
  • Comprehensive benefits package available for full-time employees

If you are based in California, we encourage you to read the Gelber Privacy Notice for California Employees and Applicants, linked here.