Trading Systems Developer - C# Backend for Quant Trading

Susquehanna International Group; Hong Kong; On-site; HKD 1,176,000 - 1,490,000; Full time

Benefits offered by this job

Private healthcare

Lunch allowance

Education assistance

Matched donations

Corporate discounts

Job summary

Susquehanna International Group seeks a Trading Systems Developer to join our Options Technology team. You will analyze, design, and develop business-critical trading systems, taking projects through the full software development lifecycle—from requirements gathering to production release.

Day to day, you’ll collaborate with technologists, traders, and quantitative analysts to deliver optimal outcomes. This role can be based in Hong Kong or Sydney, offering a greenfield opportunity as we scale

Qualifications

• Bachelor’s degree in a technical or related field.
• Interest in options, trading, risk, or quantitative systems development.
• Strong C# backend development skills with performance focus.

Responsibilities

• Analyze, design and develop trading systems across full SDLC.
• Collaborate with technologists, traders and quantitative analysts.
• Deliver production-ready systems for high-pressure trading environments.

Skills

C# development

Back-end development

Multithreading

OO design

Performance optimization

Education

Bachelor's degree in a technical or related discipline

Tools

Azure Service Fabric

Envoy Proxy

gRPC

Protobuf

React JS

Docker

Kubernetes

Octopus Deploy

ELK Stack

Job description

Susquehanna International Group seeks a Trading Systems Developer to join our Options Technology team. You will analyze, design, and develop business-critical trading systems, taking projects through the full software development lifecycle—from requirements gathering to production release.

Day to day, you’ll collaborate with technologists, traders, and quantitative analysts to deliver optimal outcomes. This role can be based in Hong Kong or Sydney, offering a greenfield opportunity as we scale