C++ Developer | Options Market Making | Experienced Hire

Susquehanna International Group, LLP; Bala Cynwyd (PA); On-site; USD 90,000 - 130,000; Full time

Job summary

Susquehanna International Group, LLP in Bala Cynwyd is seeking an experienced C++ Developer to enhance their trading technology. You will create performance-critical applications and real-time systems, working closely with traders and engineers to optimize trading performance.

The ideal candidate has at least 2 years of experience with C++ programming and a degree in a relevant field. This role promises high impact in system design and architecture for one of the largest options market makers.

Qualifications

• 2+ years of experience programming in modern C++ focused on performance.
• Comfortable in a fast-paced, collaborative environment.
• Knowledge of exchange facing protocols is a plus.

Responsibilities

• Design and develop performance sensitive C++ applications.
• Engineer resilient real-time systems for market data.
• Collaborate to enhance trading performance.

Skills

C++ programming

TCP/UDP networking

Collaborative teamwork

Education

Bachelor’s or Master’s degree in Computer Science, Engineering, or related field

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.

In this role, you will be part of an early effort to build our next generation of gateways, critical exchange connectivity systems that enable us to quickly price, quote, and execute in highly competitive electronic markets.

This is an opportunity to work on high‑impact systems where performance, reliability, and engineering precision directly influence trading outcomes.

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 is required
• 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 related technical field