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Salary
≈ HK$17k – HK$51k per month (Estimated)
Location
In office (Hong Kong)
Seniority
Junior · 2+ years exp

Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Oct 1, 2026.

Overview
Company
Impact
Profile match
Susquehanna International Group is a privately held quantitative trading firm headquartered in Bala Cynwyd near Philadelphia, Pennsylvania, that makes markets and trades across essentially all listed financial products with a focus on derivatives. It was founded in 1987 by a group of college friends who had traded on the floor of the Philadelphia Stock Exchange, and it also runs institutional sales, growth equity and venture capital arms, with offices in New York, Chicago, Dublin, London, Sydney, Hong Kong and Mumbai. It hires software developers in C++ and C#, quantitative researchers and traders, network and systems engineers, business operations analysts and interns and graduates.

Overview

Susquehanna is looking for an Application Support Engineer to join our team in Hong Kong. Primarily you will support, monitor and deploy various proprietary systems related to the company’s electronic trading throughout the Asia Pacific region.

  • You will perform and automate daily morning system health check and perform continuous real-time monitoring of production systems
  • As a support analyst, you will act as a link between developers, project managers, operations, traders and external brokers/exchanges, ensuring appropriate information flow when implementing business requests and investigating problems relating to the production environment.
  • You will maintain technical/user documentation/confluence for new/existing systems.
  • You'll gain a thorough understanding of the entire company’s trading, Order Management Systems (OMS), market data, static data and settlement/clearing systems and workflows.
  • As a part of our support team, you will identify opportunities for improving reliability and usability through the use of technology.

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 still 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 Infrastructure, Trading Desks, Project Management and Strategy Developer Teams to deliver and manage scalable and highly performant systems to support trading in the region and globally.

Growth: For many of our roles, we don’t expect you to have prior industry experience in proprietary trading or financial services to succeed at Susquehanna International Group. 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

  • Preferably degree qualified professional with a major in Computer Science, or related technical discipline.
  • Must have experience in the Financial Industry particularly around trading, market data, OMS, FIX protocol and other related systems - minimum two years.
  • Preferably have an understanding of financial market, instruments, and market data across equities and derivatives.
  • Must have the ability to communicate clearly and effectively with a range of technical and non-technical stakeholders.
  • Must be able to work under pressure with changing priorities in a trading room environment.
  • Demonstrate high level of attention to detail, desire to identify and drive operational and technical improvements within the Susquehanna environment.

Desirable Skills

  • Experience supporting a trading room environment and working with closely with traders.
  • Experience working with market data.
  • Experience working on the Linux or Windows operating systems
  • Technical skills in bash and python scripting. Optional - PowerShell, VBA, C# and/or other programming languages.
  • Knowledge of Network fundamentals is a good to have.
  • A working knowledge of messaging middleware.
  • Demonstrated desire for continuous problem solving and process improvement.

Equal Opportunity Statement

We encourage applications from candidates from all backgrounds, and we welcome requests for reasonable adjustments during the recruitment process to ensure that you can best demonstrate your abilities.

About Susquehanna

Susquehanna is a global quantitative trading firm founded by a group of friends who share a passion for game theory and probabilistic thinking. We have incorporated this approach into our culture, where you will find relentless problem solvers within each of our core disciplines: Trading, Technology, and Quantitative Research. From offices around the world, our employees collaborate to make optimal decisions and are driven by the desire to achieve winning results together.

What we do

We are experts in trading essentially all listed financial products and asset classes, with a focus on derivatives trading. Through market making and market taking, we handle millions of trading transactions around the world every day, providing liquidity and ensuring competitive prices for buyers and sellers. While our presence in the market is broad, our trading desks are highly specialised, allowing for a deep understanding of unique drivers of each asset class.

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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