Software Engineering Internship (Backoffice Team) - Summer 2026

Gelber Group • Chicago, IL

19h • Onsite

About The Position

Gelber Group is seeking a motivated individual for a summer internship program focused on designing and building a Custom Reporting Framework within their Backoffice system. This project involves developing a web-based interface that allows non-technical stakeholders to generate flexible financial statements without needing custom engineering support. The aim is to create a scalable, in-house reporting solution to enhance usability, efficiency, and long-term maintainability. Interns will receive business context and technical guidance, with meaningful ownership over a production-facing system used by Accounting and Settlement teams. The internship is 10-12 weeks long and flexible on start date, with a preference for candidates graduating between December 2026 and August 2027, or recent graduates. This position requires in-person presence in the Chicago office.

Requirements

• 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
• Curiosity, self-motivation, and strong communication skills—especially when working with non-technical stakeholders

Nice To Haves

• Exposure to TypeScript and React is beneficial
• Interest in financial markets is helpful, but not required

Responsibilities

• 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
• Present results at the end of the internship

Benefits

• Catered lunch provided Tuesday, Wednesday, & Thursdays and stocked pantry daily
• Social events
• 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

What This Job Offers

• Career Level: Intern
• Number of Employees: 101-250 employees