C++ Developer | Options Market Making | Experienced Hire

Susquehanna International Group; Bala Cynwyd (PA); On-site; USD 90,000 - 120,000; Full time

Job summary

Susquehanna International Group in Bala Cynwyd is seeking an experienced C++ developer to enhance their Options Market Making technology team. You will design and develop performance-sensitive applications connecting trading platforms to exchanges, working closely with traders and quantitative researchers.

The ideal candidate has 2+ years of experience in modern C++, strong optimization skills, and a background in electronic trading or financial technology.

Qualifications

• Minimum 2+ years of experience programming in modern C++, focusing on performance-critical code.
• Comfortable in a fast-paced, collaborative environment.
• Knowledge of TCP/UDP networking and exchange-facing protocols is a plus.

Responsibilities

• Design and develop performance-sensitive C++ applications.
• Engineer resilient real-time systems for market data and order flow.
• Collaborate with traders and researchers to improve trading performance.

Skills

C++ programming

Performance optimization

TCP/UDP networking

Education

Bachelor's or Master's in Computer Science, Computer Engineering, Mathematics

Job description

Overview

Susquehanna is one of the world’s leading options market makers, providing liquidity across global financial markets through cutting‑edge technology, quantitative research, and deep trading expertise. We are looking for an experienced C++ developer to join our Options Market Making technology team and help build the performance‑critical infrastructure that sits at the core of our trading business.

How You’ll Make an Impact

• Design and develop performance‑sensitive C++ applications that connect our trading platforms to exchanges and liquidity venues.
• Engineer resilient real‑time systems capable of handling massive volumes of market data and order flow.
• Collaborate directly with traders, quantitative researchers, and infrastructure engineers to improve trading performance and execution quality.
• Analyze system behavior and optimize latency, throughput, and determinism across the software stack.
• Contribute to the architecture of next‑generation trading systems supporting one of the largest options market‑making businesses globally.

What We’re Looking For

• Minimum 2+ years of experience programming in modern C++, with a focus on writing performance‑critical code.
• Comfortable working in a fast‑paced, collaborative environment with traders, researchers, and other developers to iterate quickly on ideas.
• Knowledge of TCP/UDP networking and/or exchange‑facing protocols is a plus.
• Prior experience in electronic trading or financial technology is a plus but not a requirement to be successful.
• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Mathematics, or a related technical field.