Software Developer (C++) – DDT – Experienced Hire

Susquehanna International Group, LLP

Job Location:

Dublin - Ireland

Monthly Salary: Not Disclosed

Posted on: 13-10-2025

Vacancies: 1 Vacancy

Job Summary

Overview

Who We Are:

Technology is what makes SIGs systematic trading desk successful. Smarter faster code makes the difference between winning or losing on the most competitive markets in the world.

Every day our teams of traders and developers work together to push our proprietary trading systems to the edge of what is physically possible. You will learn from very smart experienced developers how to implement trading systems from scratch or hyper-optimise existing ones. Weve got heaps of exchange and performance data for you to chew on using our high-performance clusters.

Your success is our success and well be there to guide your development and make sure youll keep on learning. Over time well rely on you to help us build entirely new trading strategies for the existing markets and new markets were always looking to.

What youll be involved with:
Partnering with Quantitative researchers and traders working with a well establish codebase through iteration to enhance refine and evolve strategies. Tap into tens of petabytes of raw and well prepped full tick market data strategy decisions fundamentals and many other data sources to understand market dynamics and find new
signals.

Susquehanna Developers are:

Focussed on delivery - able to execute ideas quickly and challenge for edge cases.
Take ownership of build with a focus on stable scalable and optimised environment.
Able to take projects from initial design through to production.
Great communicators - able to interact with traders and quants sharing ideas and testing theories.
Analytical thinkers used to analysing data and building model simulations

What were looking for

Degree in a technical discipline or equivalent experience.
At least 3 years C experience
Strong problem solving and modelling experience.
Ability to absorb mathematical concepts and develop high-performance implementations.
Strong interpersonal and communication skills.
Experience or interest in areas such as capital markets probability and game theory is a plus.
Experience or interest in statistics is a plus.
Experience of grid and/or cloud computing a plus.
Experience of Python is a big plus also.

Susquehanna is an equal opportunity employer. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruitment process please contact us.

If youre a recruiting agency and want to partner with us please reach out to . Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee.

#LI-JM1

Required Experience:

Senior IC

OverviewWho We Are:Technology is what makes SIGs systematic trading desk successful. Smarter faster code makes the difference between winning or losing on the most competitive markets in the world.Every day our teams of traders and developers work together to push our proprietary trading systems to ...