Senior C++ Developer | Trading Infrastructure | Experienced Hire

SIG Susquehanna; Bala Cynwyd (PA); On-site; USD 110,000 - 150,000; Full time

Job summary

SIG Susquehanna in Bala Cynwyd, PA, is seeking a Senior Software Developer for its Front Office team. The role focuses on designing and developing low-latency trading systems, requiring strong C++ skills and a minimum of 10 years' experience in software applications or HFT infrastructure. Responsibilities include building a stable, optimized environment and exploring new technologies. Susquehanna is a global trading firm that excels in market making across all asset classes, utilizing cutting-edge technology and data analysis.

Qualifications

• 10+ years of progressive experience developing software applications or HFT infrastructure.
• Strong understanding of high-performance computing using C++ is required.
• Excellent attention to detail and accuracy with performance optimization.

Responsibilities

• Focus on the entire technical stack for stable, scalable, optimized environment.
• Explore new technologies to find the optimal solution.
• Exercise strong object-oriented programming skills.

Skills

C++

High-performance computing

Object-oriented programming

Performance optimization

Education

Bachelor’s degree in Computer Science, Engineering, Mathematics or related discipline

Job description

Overview

Susquehanna International Group is seeking an experienced Software Developer to join a Front Office team responsible for designing and developing low-latency trading systems.

As a developer on this team, you will work closely with technologists and traders to enhance our trading capabilities by providing innovative, scalable and stable systems. You will have direct impact and work on proposing new ideas or gathering requirements for additional functionality, both of which are brought into production quickly through our short development cycles.

Beyond development, you will have the opportunity to propose and investigate new technologies to help us stay ahead. We are looking for a senior level C++ Developer with experience in performance and optimization.

In this role, you will:

• Focus on the entire technical stack with an eye for building a stable, scalable, optimized environment with minimized risk
• Explore new technologies to find the optimal solution
• Exercise strong object oriented programming skills

What we’re looking for

• Bachelor’s degree in Computer Science, Engineering, Mathematics or related discipline or its foreign equivalent
• 10+ years of progressive experience developing software applications or HFT infrastructure
• Strong understanding of high-performance computing using C++ is required
• Excellent attention to detail and accuracy and a thorough understanding of performance optimization / latency reduction methodologies
• Ability to work closely with other software developers, traders, quants, and infrastructure teams

About Susquehanna

Susquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting‑edge technology, we excel in solving complex problems and pushing boundaries 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 specialized, allowing for a deep understanding of unique drivers of each asset class.