Real-Time C# Strategy Engineer for Trading Systems

Susquehanna International Group; Hong Kong; On-site; HKD 900,000 - 1,400,000; Full time

Benefits offered by this job

Competitive compensation package

Job summary

Susquehanna International Group is seeking a highly skilled C# Strategy Developer to join the Trading Technology team in Hong Kong. You will design, build, and optimize real-time trading systems and strategy tooling, partnering with traders and quantitative researchers to implement high-performance logic for live markets.

You will deliver scalable solutions that process large market data volumes, tune latency, and contribute across the full software lifecycle, shaping the architecture and

Qualifications

• Bachelor's degree or higher in Computer Science, Engineering, or a related technical discipline.
• 5+ years of professional experience designing and developing applications using C# in a heterogeneous technical environment.
• Strong command of object-oriented design, multi-threading, profiling, performance tuning, network/socket programming, and interprocess communication.
• Experience building high-performance, real-time, or distributed systems with demanding reliability and scalability requirements.
• Proven ability to deliver complex software systems that meet challenging business and technical goals.
• Prior experience developing automated trading, market making, or other algorithmic trading systems is highly regarded.
• Experience writing trading system logic that manages orders and interacts with live markets is strongly preferred.
• Knowledge of options, pricing concepts, and Greeks would be a plus.
• Strong attention to detail, sound judgment, and a collaborative approach to problem-solving.

Responsibilities

• Design, develop, and enhance trading applications and strategy tools using C# in a real-time environment.
• Partner closely with traders, quantitative researchers, and technologists to implement and refine trading logic and supporting systems.
• Build scalable, reliable, and high-performance solutions that process large volumes of market and trading data.
• Tune and optimize systems for latency, throughput, stability, and operational resilience.
• Contribute across the full software development lifecycle, from requirements gathering and design through deployment and production support.
• Help evolve the architecture, tooling, and engineering practices that support our trading systems over the long term.

Skills

C#

Multithreading

Performance tuning

Network programming

Real-time systems

Distributed systems

Education

Bachelor's degree in CS/Engineering

Job description

Susquehanna International Group is seeking a highly skilled C# Strategy Developer to join the Trading Technology team in Hong Kong. You will design, build, and optimize real-time trading systems and strategy tooling, partnering with traders and quantitative researchers to implement high-performance logic for live markets.

You will deliver scalable solutions that process large market data volumes, tune latency, and contribute across the full software lifecycle, shaping the architecture and