Quantitative Systematic Trading Internship: Summer 2025

Overview
Our Quantitative Systematic Traders combine the skills of quantitative research with the knowledge of trading to develop new electronic strategies and monitor real-time performance. As a true hybrid of our core disciplines, Quantitative Systematic Traders are constantly communicating and connecting ideas between trading, technology, and quantitative research.

As a Quantitative Systematic Trading Intern at Susquehanna, you will work on projects that model the work of our full-time employees. You will also go through a comprehensive education programme and interact with mentors who are at the top of their field, allowing you to build foundational knowledge in quantitative finance. Education topics include an introduction to options pricing, exposure to our proprietary data sets, and opportunities to practice data analysis techniques. You will have the opportunity to practice making trading decisions in a simulated trading environment.

What we're looking for

Research Minded - You enjoy diving deep into a question and are interested in exploring the subtleties of the dynamic market conditions. You like building mathematical models to reveal patterns in the vast amount of data and love it when you discover a solution to a difficult problem.

Technically Proficient – You have experience writing code to process and analyse large sets of data. You’re an analytical problem solver and use logical reasoning to justify your decisions.

A communicator - You enjoy building relationships with those you work closely with. You enjoy sharing ideas, expressing your thoughts, and listening to the views of others. You’re not afraid to discuss ideas and work with others to find the optimal solution.

Ambitious. You’re someone that enjoys setting personal goals and giving your all to achieve them. Be it in Academics, Sports, the Arts, or another passion you have, you’re not afraid to put in the effort to reach your full potential.

Class of 2025 or 2026: You are a PhD or Research Masters student in the penultimate year of study, majoring in mathematics, physics, engineering, computer science, or econometrics, and available to join the internship in late June, 2025. Successful interns are invited back as graduates to join our full-time graduate programme.

What’s In It For You:

Education: Throughout the programme you’ll have classes covering a vast range of topics (game theory, finance, python, data analysis) from some of the most experienced employees at Susquehanna.

Development: You will get to work with a wide range of people in the classroom and through your project work. People who share a passion for mathematics, problem-solving, game theory and technology with you.

Decision Making: Learn how to make great decisions. Using strategy games, like poker and several in-house games we’ve developed, you’ll learn how we leverage game theory to make better decisions in the financial markets.

Culture: Our culture allows employees of every level to thrive. We buck the trend in the financial world – the environment is casual, collaborative and we focus on continuous development, no matter how long you’ve been in Susquehanna.

Perks: Based in Ireland’s Financial Services Centre, in the heart of Dublin’s city centre, our employees avail of free onsite catering, a games room, and a large in house gym, to name but a few of our favourite perks. We organise weekly social activities during the summer for our interns and we’ll also provide summer interns, who aren’t from Dublin, with accommodation for the duration of the internship.

Applicants must be legally eligible to work in Ireland

Our Summer Internship is 10 weeks, and runs from late June to late August.

** We hire for our QST internship on a rolling basis. There are limited places on our 2025 QST internship, therefore interested candidates are strongly encouraged to apply early.**

Susquehanna is an equal opportunity employer, and we are committed to diversity and inclusion throughout our recruitment process. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruitment process, please contact us.

Susquehanna does not accept unsolicited resumes from recruiters or search firms. Any resume or referral submitted in the absence of a signed agreement will become the property of Susquehanna and no fee will be paid.

Please note that applications for this job require an online assessment. This assessment is administered by a third party company, Induslynk Training Services Private Limited (doing business as Mercer | Mettl), registered in India. By clicking through to apply for this job you are giving Susquehanna your consent to have your email address transferred to Mercer | Mettl by the administrator of our careers platform. Mercer | Mettl will then contact you directly in order to administer the assessment. The results of your assessment will be shared with Susquehanna for the purposes set out and in accordance with Susquehanna‚Äôs Privacy Policy: https://sig.com/about/privacy-policy/.  Mercer |Mettl‚Äôs Privacy Policy can be found here: https://mettl.com/en/privacy-policy/.