C# Developer - Reference Data
Susquehanna International Group Sydney, Australia
Susquehanna International Group Sydney, Australia
Overview
Susquehanna is a global proprietary trading firm founded with a growth mindset and a rigorous analytical approach to decision making.
We bring together the brightest minds, the best technology, and an expansive library of data to design and implement proprietary trading strategies that make us leaders in the financial markets.
Our ability to think together (but not always alike) propels our success.
Technology is at the core of our winning strategy.
As a C# Developer on our Market Data team, you'll help ensure our trading desks have access to high-quality, reliable market data.
You'll work closely with traders and fellow technologists to develop systems that manage the collection, validation, and distribution of critical financial data.
From refining database design to building scalable C# applications, your work will have a direct impact on S usquehanna 's trading performance globally.
What You'll Do
Collaborate with traders and quants to understand data needs and implement solutions that ensure high data integrity and low latency
Design and optimize relational databases, applying strong
SQL and schema design principles
Write clean, maintainable code in
C#
as part of a fast-paced development team.
Contribute to
system architecture discussions
, help drive technical decisions, and mentor other developers
Investigate and troubleshoot issues related to data quality, access, and processing performance.
What we're looking for
3+ years of experience with C#
in a professional setting
Strong knowledge of
SQL
and
relational database design
Solid foundation in
object-oriented programming
and software design principles
Strong
attention to detail
, especially around data validation and integrity
Effective communicator who can explain complex technical concepts clearly
Proven ability to thrive in a fast-paced, collaborative environment.
Preferred Qualifications
Interest or experience in
financial instruments
(ETFs, equities, futures, options).
Exposure to
Python
development
Familiarity with
Linux
,
shell scripting
, and
DBT (data build tool)
Experience working with
market data vendors
(e.g. Bloomberg, Refinitiv/Reuters).
What Sets SIG Apart
At SIG, we bring a game-theory mindset to every challenge.
Our teams work side-by-side, using rapid feedback and tight feedback loops to optimize performance in real time.
Whether you're solving a technical bottleneck or building a tool to analyze market trends, your work will directly support our trading edge.
Susquehanna does not accept unsolicited resumes from recruiters or search firms.
Any resume or referral submitted in the absence of a signed agreement will become the property of Susquehanna and no fee will be paid.
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