Quant jobs / Susquehanna International Group (SIG)

Trading System Engineering Internship Summer 2027

A ten-week internship building low-latency C++ trading systems for strategy development teams. It pairs market education with projects next to senior developers.

What you’d work on

Our reading of the posting: what a new hire in this role would most likely spend their first months on.

Learn how markets and the firm's trading approach work through a taught deep dive
Build a feature or tool for a low-latency C++ trading system
Profile and speed up performance-critical code
Review designs with senior developers

What they ask for

Required

Strong C++, C, Rust, C# or Java
Some Python
Logical reasoning
Enrolled in a bachelor's or master's in CS, computer engineering, maths or similar
Graduating by 2028

Education: Bachelor's or master's student in computer science, computer engineering, maths or a closely related STEM subject
Experience: Current students planning to start full time by August 2028
Languages and tools: C++
C
Rust
C#
Java
Python

How to prepare

Write a small limit order book in modern C++ and measure its latency
Learn cache behaviour, memory layout and lock-free queues
Study how exchanges and order matching work
Practise algorithm and data-structure problems under time pressure

What to study

The HFT Quant Developer roadmap sets out the stages for this kind of role, with free resources for each.

Open the roadmap

Apply

Read the full posting on Susquehanna International Group (SIG)’s site before applying: requirements, location and pay can change after we check them.

View the posting on Susquehanna International Group (SIG)’s site ↗

SelfMadeQuant wrote this summary from the employer’s public posting, last checked 6 November 2026. SelfMadeQuant isn’t affiliated with Susquehanna International Group (SIG) and doesn’t handle applications.