Susquehanna International Group

C++ Developer | Trading Infrastructure | Experienced Hire

Susquehanna International Group • $110K — $130K *
Philadelphia, PA 19120In-Person
Finance & Insurance
Less than 5 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science, Engineering, Mathematics, or related discipline.
  • 3+ years of experience in software application or trading infrastructure development.
  • Strong background in system design balancing performance, reliability, and simplicity.
  • Proven experience or aptitude in high-performance or low-latency system development.
  • Expertise in object-oriented programming and sound engineering practices.
  • Ability to collaborate with non-engineering stakeholders like traders and quants.
  • Demonstrated curiosity and initiative in exploring new technologies.

Responsibilities

  • Design and build high-performance, low-latency trading systems.
  • Own the entire technical stack from design to implementation.
  • Focus on stability, scalability, and minimizing operational risk.
  • Evaluate and prototype new technologies and tools.
  • Apply strong software engineering fundamentals for maintainable systems.

Benefits

  • Innovative work environment with short development cycles.
  • Immediate and visible impact of your contributions.
  • Opportunities for continuous learning with emerging technologies.
  • Collaborative atmosphere encouraging ideas from diverse stakeholders.
Full Job Description
Overview

Susquehanna is seeking an experienced Software Developer to join a front office team responsible for designing and building low-latency trading systems that power our trading strategies. Our short development cycles mean your work reaches production quickly, and your impact is immediate and visible.

In this role, you will:
  • Design and build high-performance, low-latency systems where architecture choices directly affect trading outcomes
  • Own the full technical stack - from system design through implementation - with a focus on stability, scalability, and minimizing operational risk
  • Evaluate and prototype new technologies, tools, and approaches to keep our systems and infrastructure ahead of the curve
  • Apply strong software engineering fundamentals, including object-oriented design, to build systems that are both fast and maintainable

What we're looking for

  • Bachelor's degree in Computer Science, Engineering, Mathematics or related discipline or its foreign equivalent
  • 3+ years of progressive experience developing software applications or trading infrastructure
  • Strong foundation in system design, with the judgment to balance performance, reliability, and simplicity
  • Experience with (or strong aptitude for) high-performance or low-latency system development
  • Solid object-oriented programming skills and sound engineering practices
  • Comfort working directly with non-engineering stakeholders (traders, quants) to shape technical solutions around real trading needs
  • Curiosity and initiative, with a track record of investigating new technologies and proposing improvements


About Susquehanna International Group

Susquehanna International Group is a global quantitative trading firm that was founded in 1987. The company specializes in trading options, futures, equities, and other securities. It has offices in North America, Europe, and Asia and employs over 2,500 people. The company is known for its innovative trading strategies and advanced technology. It is also involved in venture capital and private equity investments.
Learn more about Susquehanna International Group
Size
2,500 employees
Industry
Finance & Insurance
Founded
1987
* Ladders Estimates

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