Quantitative Systematic Trading Internship: Summer 2026

<b>Overview</b> <br><p style="margin: 0px;"><span>Susquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting-edge technology, we excel in solving complex problems and pushing boundaries together.</span></p><p style="margin: 0px;"> </p><p style="margin: 0px;">At Susquehanna, quantitative systematic traders represent a true hybrid of our core disciplines: trading, technology, and quantitative research. Drawing on their technical proficiency, research experience, and understanding of trading, quantitative systematic traders’ work involves identifying trading signals, developing strategies, and collaborating extensively with members of the trading, quantitative research, and technology teams.</p><p style="margin: 0px;"> </p><p style="margin: 0px;">Our quantitative systematic trading summer internship runs for 10 weeks. Managed by a team of dedicated senior traders and quantitative researchers, our education programme is widely recognised as being the best in the industry. Don’t worry if you don’t come from a finance background – we will teach you everything you need to succeed. </p><p style="margin: 0px;"> </p><p style="margin: 0px;">A core strength of our internship is that we combine classroom-based education with hands-on project work and trading simulations. Interns are immersed in a real-world algorithmic trading problem, learning about our proprietary dataspaces, novel modelling approaches, and strategy implementation. Additionally, quantitative systematic trading interns develop a deep understanding of trading decision-making by participating in various types of trading simulations.  </p><p style="margin: 0px;"> </p><p style="margin: 0px;">Join us this summer to see why so many interns decide to return for a full-time career in quantitative trading.  </p><br><b>What we're looking for</b><br><p style="margin: 0px;"><strong>Research-minded: </strong>You enjoy diving deep into a question and building mathematical models to reveal patterns in vast amounts of data. </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Technically proficient: </strong>You have experience writing code to process and analyse large datasets.  </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Clear communicator: </strong>You enjoy building relationships with those you work closely with and are comfortable sharing ideas, expressing your thoughts, and listening to the views of others.</p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Ambitious: </strong>You’re someone that enjoys setting personal goals and giving your all to achieve them. Be it in Arts, Sports, Academics, or another passion, you’re not afraid to put in the effort to reach your full potential. </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Class of 2026 or 2027: </strong>You’re a PhD or research master’s student in the penultimate year of study, majoring in a quantitative discipline. Depending on availability, successful interns will be invited to join the programme either immediately after the completion of the internship, or in January or September 2027.  </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong><u>What’s in it for you:</u></strong> </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Education: </strong>You will attend classes covering a vast range of topics (Options Pricing, Machine Learning, Data Analysis Techniques, Game Theory, Trader Talks, In-house trading games… the list goes on!) from some of the most experienced employees in Susquehanna. </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Collaboration: </strong>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.  </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Culture: </strong>Our non-hierarchical, casual, and collaborative culture allows employees of every level to thrive. </p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Perks: </strong>We offer a highly competitive compensation package to our interns. Located in Ireland’s Financial Services Centre, in the heart of Dublin’s city centre, our office features free onsite catering, a games room, and a fully equipped in-house gym. Throughout the summer, interns enjoy weekly social events. For those joining us from outside Dublin, we also provide accommodation for the duration of the internship. </p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"> </span></p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"> </span></p><p style="margin-bottom: 0cm;"> </p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"> </span></p><p style="margin-bottom: 0cm;"><span style="font-family: verdana, geneva; font-size: 10pt;"><strong>Applicants must be legally eligible to work in Ireland</strong></span></p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"> </span></p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;">Our Summer Internship is 10 weeks, and runs from late June to late August.</span></p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"> </span></p><p style="margin: 0px;"><span style="font-size: 10pt; font-family: verdana, geneva;">** 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.**</span></p><p style="margin: 0px;"> </p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"><strong>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. </strong></span></p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"><strong> </strong></span></p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt; font-family: verdana, geneva;"><strong> </strong></span></p><p style="margin-bottom: 3.0pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><em>If you're a recruiting agency and want to partner with us, please reach out to <a href="mailto:recruiting@sig.com" target="_blank" rel="noopener">recruiting@sig.com</a>. Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee.</em></span></p><p style="margin-bottom: 3.0pt;"> </p><p style="margin-bottom: 0cm;"> </p><p style="margin-bottom: 0cm;"><span style="font-size: 10pt;"><strong><span style="font-family: 'Avenir Next LT Pro', sans-serif;"><span style="font-family: verdana, geneva; font-size: 10pt;">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’s Privacy Policy: <a href="https://sig.com/about/privacy-policy/" target="_blank" rel="noopener">https://sig.com/about/privacy-policy/</a>.  Mercer |Mettl’s Privacy Policy can be found here: <a href="https://mettl.com/en/privacy-policy/" target="_blank" rel="noopener">https://mettl.com/en/privacy-policy/</a>.</span></span></strong></span></p>