Trading Systems Performance Engineer | EMO | Experienced Hire

Susquehanna International Group, LLP

Job Location:

Dublin - Ireland

Monthly Salary: Not Disclosed

Posted on: 30-08-2025

Vacancies: 1 Vacancy

Job Summary

Overview

What you will do:

Work with the very latest innovative and cutting edge technologies used in financial trading.
Recreate complex low latency trading topologies and scenarios in our dedicated lab environment.
Provide critical thinking to challenging problems and work as part of a team to help solve them.
Work with stakeholders to identify and formulate lab testing scenarios.
Use the dedicated lab and tools you develop to explore and test innovative trading scenarios to prove/disprove hypothesis.
Identify recommend implement and drive optimizations in the production trading environment from the results of the testing.
In depth analysis of production trading and lab network data from many sources and formats.
Become an expert on all aspects of the low latency trading environment.
Drive testing automation efforts.
Work with external vendors and companies on new products features and technologies to keep Susquehanna at the forefront of Ultra Low Latency Trading.

What were looking for

Highly motivated meticulous articulate and deeply curious about all aspects of technologies used in a trading environment.
Excellent software development testing trouble shooting and analysis skills using C/C and C#.
Extensive knowledge of computer internals operating systems and networking.
Data analysis experience in Python using Jupyter Notebooks.
Python and Powershell scripting experience.

Great if you also have:

Experience in a low latency trading environment.
Practical knowledge of the following network protocols BGP IGMP PIM Ethernet IP UDP TCP LLDP etc
Experience using FPGAs and technologies used in a Low latency networking environment. (Solarflare Kernel bypass etc)
Knowledge or experience of DC operations.

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.

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Required Experience:

Senior IC

OverviewWhat you will do:Work with the very latest innovative and cutting edge technologies used in financial trading.Recreate complex low latency trading topologies and scenarios in our dedicated lab environment.Provide critical thinking to challenging problems and work as part of a team to help so...