C#/C++ Software Developer (Quoting)

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Sydney, AU Until 8/21/2026 First posted July 28, 2025 Last posted July 28, 2025
Job description

Overview

Susquehanna International Group is seeking a Software Engineer to join our Options Trading desk. In this role, you will primarily work on our market making strategies used by the Options trading desk. Susquehanna technologists are at the heart of where cutting-edge technology meets the fast-paced world of trading. Our growing teams build some of the most powerful trading systems in the financial industry and solve complex problems in a constantly changing environment. 

From large-scale computations, real-time systems, high-performance computing to petabytes of data, we integrate sophisticated coding techniques with innovative engineering ideas. We design and optimize systems that can process massive amounts of data while ensuring high performance and stability. Collaborating with traders and quantitative researchers, our systems engineers, network architects, technical analysts, and software developers create competitive edge through best-in-class technical solutions. 

 

What you can expect from us: 

  • Real Impact: By integrating sophisticated coding techniques with innovative engineering ideas, we design and optimize systems that can process massive amounts of data while ensuring high performance and stability. You’ll see how your contributions towards developing and supporting leading-edge hardware and software technologies make a firm-wide impact that makes us all smarter, faster, and better 
  • Collaboration: You will partner closely with our Trading, Quantitative Researchers, Infrastructure, and Strategy Developer Teams to develop and manage scalable and highly performant systems to support trading in the region 
  • Growth: We’re looking for people who are naturally curious, relentless problem solvers, and have the desire to continuously innovate, learn, and grow 
  • Benefits: Susquehanna offers a wide array of competitive employee perks & benefits. 

What we’re looking for

  • C++ development skills with extensive knowledge of design, profiling, OOP, multi-threading, and performance focused on back-end development 
  • Experience in quoting systems and market making strategies would be beneficial 
  • Knowledge of financial markets and derivatives products 
  • Willingness to work in C# and adapt to different programming languages as needed 
  • Strong verbal communication skills and the ability to deal effectively with both technical and non-technical teams. 
  • Experience in Python on Windows or Linux would be beneficial but not essential 
  • Minimum of a Bachelor’s degree in Computer Science, Engineering, Mathematics, or a related discipline 

 

If you're a recruiting agency and want to partner with us, please reach out to [email protected]. Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee.

 

About this role

Summary

Develop and optimize trading systems for the Options trading desk.

Job title

C#/C++ Software Developer (Quoting)

Experience level

entry level

Industry

finance

Location requirements

Located in Sydney, remote work not allowed

Salary

Not specified

Management role

No

Skills & keywords

Required skills

C++designprofilingOOPmulti-threadingperformancequoting systemsfinancial marketsBachelor’s degree

Preferred skills

C#PythonWindowsLinuxcommunication

Specializations

C++C#market makingfinancial marketsback-end
Locations

Structured locations inferred from the posting.

Sydney NSW, Australia

On-site City