Software Engineer Intern

Trillium is a leading proprietary trading firm active in US Equities, US Options, Canadian Equities, and OTC Equities. With trading technology built, tested, and optimized in-house, our engineers and technologists collaborate with our traders to deliver tools and functionality designed to support their needs. Our passion for the markets and our drive to succeed have propelled our track record of growth and profitability for over 20 years. At Trillium, we are a team of problem solvers and independent thinkers dedicated to seizing market opportunities.

We are headquartered in New York City, with additional trading floors in Chicago and Miami. To learn more about Trillium, visit

The Role

Trillium Labs is seeking a Software Engineer Intern to support our team in creating high-performance solutions for complex financial trading and data analysis applications. Reporting to the Lead Software Architect, this intern will gain hands-on experience with software design and development in a fast-paced, fintech environment. Ideal candidates have a passion for coding, problem-solving, and learning new programming concepts.

Responsibilities

• Collaborate with the software engineering team on the development and maintenance of trading systems and applications.
• Assist in designing, coding, and debugging applications using best practices in software development.
• Support the integration and testing of software solutions across multiple systems.
• Conduct research on relevant technologies and methodologies to improve existing systems.
• Participate in code reviews and contribute to the overall improvement of code quality.
• Document work processes and code modifications

Requirements

• Preference: Recently completed a degree in Computer Science, Computer Information Systems (CIS), Mathematics, or a related field.
  • *Will consider candidates pursuing the above
• Proficiency in programming languages such as Python, C++, and C#.
• Familiarity with software development methodologies, tools, and version control systems.
• Strong analytical skills and a solid understanding of algorithms and data structures.
• Ability to work collaboratively in a dynamic, fast-paced environment.

Location: This is an in-person role based in NYC.

Compensation and Perks

• $25/Hour (Summer 2026, 12-13 Week Internship)
• Complimentary breakfast on Tuesdays and lunch on Wednesdays and Thursdays
• Join us for exciting outings such as mentor dinners, and field trips to Bloomberg HQ and the NYSE
• Engage with senior management and gain insights from leaders across the firm

Trillium is an Equal Opportunity Employer.  In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Trillium are based on merit, qualifications, and the needs of the company.  Trillium does not discriminate on the basis of race, creed, color, religion, sex, national origin, age, disability, predisposing genetic characteristics, ancestry, military status, family care status, marital status, sexual orientation, domestic violence victim status, gender identity or any other legally protected basis protected by applicable law. Applicants who are interested in applying for a position and require special assistance or a reasonable accommodation due to a disability should contact