Susquehanna International Group

Software Engineer| Tactical Python Developer | Experienced Hire

Susquehanna International Group$110K — $130K *
Finance & Insurance
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 3+ years building Python applications or data systems
  • Strong skills in Python, including Pandas and NumPy
  • Experience with backend frameworks like Flask or FastAPI
  • Knowledge of data pipelines and structured/unstructured datasets
  • Proficient in SQL and database systems
  • Familiar with APIs and real-time data feeds
  • Exposure to AI tools for code optimization and productivity

Responsibilities

  • Research, design, and develop systems for backtesting and data analysis
  • Build Python applications that provide tactical analytics for trading
  • Monitor and diagnose trading strategies
  • Develop ad-hoc tools and systematic data solutions
  • Enhance trading workflows and optimize performance
  • Design and maintain data pipelines for research and trading
  • Refine systems based on user feedback and evolving strategies

Benefits

  • Collaborative environment with access to experienced traders and analysts
  • Opportunity to directly impact trading decisions through your work
  • Engagement with cutting-edge technologies in finance
  • Focus on continuous improvement and personal development
  • Flexible work hours to suit diverse lifestyles
Full Job Description
Overview

Front Office Python Engineer - Trading Applications

We are hiring Python Engineers to build and evolve trader-facing applications that power data analysis, visualization, and decision-making across trading and development desks.

 

This role combines data engineering, application development, and quantitative tooling, with a focus on delivering systems used in backtesting, analytics, and real-time trading workflows. You will work closely with traders, quantitative analysts, and technologists to turn data into actionable insights and scalable tools.

 

What you’ll work on:

  • Research, design, and develop systems used in backtesting and data analysis
  • Build Python-based applications and tools that deliver tactical analytics for trading decisions
  • Strategy monitoring and diagnostics
  • Develop both ad-hoc tools and systematic data solutions
  • Improve trading workflows and optimize performance
  • Design and maintain data pipelines and datasets supporting research and trading
  • Continuously refine systems based on desk feedback and evolving trading strategies

 

What we’re looking for
  • 3+ years of professional experience building Python applications or data systems
  • Strong Python skills, including experience with:
    • Pandas, NumPy, and data processing libraries
    • Backend frameworks (Flask, FastAPI, or similar)
  • Experience working with:
    • Data pipelines and structured/unstructured datasets
    • APIs and real-time data feeds
    • SQL and database systems
    • AI tools to improve code quality, performance, and developer productivity
  • Familiarity with:
    • Data visualization tools
    • Exposure to real-time systems or event-driven architecture

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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
Founded
1987

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