# Trading Systems Engineering Internship: Summer 2027 (London) [Susquehanna](https://www.jorb.ai/firms/susquehanna.md) · London · United Kingdom · [Backend](https://www.jorb.ai/jobs/backend.md) Susquehanna is hiring a Trading Systems Engineering Internship: Summer 2027 (London) in London. Posted 2026-08-21; applications close 2026-10-20. **Apply**: https://careers-sig.icims.com/jobs/11334/trading-systems-engineering-internship%3A-summer-2027-%28london%29/job Posted 4d ago. ## Role details ## Trading Systems Engineering Internship: Summer 2027 (London) ## Overview Susquehanna is looking for highly motivated full-time students for our 10-week trading system engineering summer internship program, based between our EU Headquarters in Dublin, Ireland, and our London office. This is a computationally intensive role that allows you to use your technical skills to solve problems at the intersection of trading, data, and technology. Throughout the summer, you will receive education about how markets work through a deep dive into financial markets and Susquehanna’s approach to trading. You will work on challenging projects for our trading strategy development teams in low-latency C++ trading system development. You will also collaborate side by side with senior developers who understand the nuances of building complex trading strategies. ## What We’re Looking For ### Class of 2028 - You are a bachelor’s or master’s student in your penultimate year of study. - You major in a quantitative and/or STEM discipline such as computer science, computer engineering, mathematics, or data science. - You intend to graduate and begin full-time employment by August 2028. ### Clear Communicator - You enjoy building relationships with the people you work closely with. - You are comfortable sharing ideas, expressing your thoughts, and listening to the views of others. ### Ambitious - You enjoy setting personal goals and giving your best to achieve them. - You are willing to put in the effort to reach your full potential (in academics, sports, arts, or other interests). ### Technically Proficient - Strong software development skills in C++, C, or Rust. - Some experience with Python. - Experience and comfort working with data using libraries such as Pandas, Polars, or NumPy. - Exceptional quantitative, logical reasoning, and analytical skills. ### Problem Solver - You use clear, sound reasoning to solve problems. - You are rational and like to use numbers and data to develop sensible solutions. ## What’s in It for You ### Education - Market-leading education and training programs. - Classes covering a wide range of topics, including Options Pricing, Machine Learning, Data Analysis Techniques, Game Theory, Trader Talks, and in-house trading games (and more). - Instruction from some of the most experienced employees at Susquehanna. ### Collaboration - Work with a wide range of people in the classroom and through project work. - Connect with individuals who share a passion for mathematics, problem-solving, game theory, and technology. ### Culture - A non-hierarchical, casual, and collaborative culture where employees at every level can thrive. - Focus on continuous development regardless of how long you have been at Susquehanna. ### Perks - A highly competitive compensation package. - Location in Ireland’s Financial Services Centre in central Dublin, with free onsite catering, a games room, and a fully equipped in-house gym. - Weekly social events throughout the summer. - Accommodation provided for candidates joining from outside Dublin for the duration of the internship. ## Additional Details - Rolling hiring for the TSE internship; there are limited places for the 2027 internship, so candidates are encouraged to apply early. - Interview process includes interviews with coding, mathematics, system design, and behavioural components. - The summer internship is 10 weeks and runs from late June to late August. - Applicants must be legally eligible to work in Ireland and the UK. - Susquehanna is an equal opportunity employer and is committed to diversity and inclusion throughout the recruitment process. - If you need assistance and/or a reasonable accommodation due to a disability during the application or recruitment process, contact the team. ## Applying to this role This Trading Systems Engineering Internship: Summer 2027 (London) role at Susquehanna runs through the firm's own careers portal and expects a CV and cover letter written specifically for the posting, not a portable submission carried across firms. Jorb AI's application agent tailors a CV and cover letter from your background to this posting and tracks the role alongside the rest of your applications. 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