Susquehanna International Group

About the Company

At Susquehanna, we approach quantitative finance with a deep commitment to scientific rigor and innovation. Our research leverages vast and diverse datasets, applying cutting-edge machine learning to uncover actionable insights and driving data-informed decisions from predictive modeling to strategic execution. Today, Susquehanna has over 3,000 employees in 17+ global locations. While we have grown in size and expanded our reach, our collaborative culture and love for gaming remains.

Listed Jobs

Company Name

Susquehanna International Group

Job Title

Software Developer Graduate: 2026 (London Office)

Job Description

**Job Title:** Software Developer Graduate **Role Summary:** Graduate software developer embedded in a global quantitative trading firm, mentored by senior technologists and tasked with building, optimizing, and maintaining scalable, high‑performance systems for market data processing and strategy execution. **Expectations:** - Complete a structured graduate programme with industry‑leading training. - Deliver production‑ready code that meets performance, reliability, and risk standards. - Collaborate closely with research, trading, infrastructure, and support teams. - Demonstrate continuous learning and proactive contribution to technical roadmaps. **Key Responsibilities:** - Design, develop, test, and maintain software components using C#, C++ or Python. - Implement efficient algorithms and data structures for high‑throughput data pipelines. - Apply object‑oriented design patterns and best practices in coding, testing, and documentation. - Integrate solutions with large‑scale data ingestion and real‑time trading systems. - Participate in code reviews, performance tuning, and reliability assessments. - Work with analysts, traders, and support specialists to diagnose and resolve technical issues. - Contribute to product evolution by researching new technologies and proposing improvements. **Required Skills:** - Proficient programming in an object‑oriented language (C#, C++ or Python). - Strong grasp of algorithms, data structures, and OOP design principles. - Analytical problem‑solving mindset; ability to reason through complex challenges. - Effective communicator, comfortable building collaborative relationships. - Self‑motivated, goal‑driven, and eager to learn new technologies. - Comfortable working in a non‑hierarchical, collaborative environment. **Required Education & Certifications:** - Final year or graduate of a STEM bachelor’s or master’s degree (Computer Science, Software Engineering, Electrical Engineering, Mathematics, Physics, etc.). - No mandatory certifications; coursework in algorithms, data structures, and software development is preferred.

London, United kingdom

Hybrid

Junior

04-11-2025

Company Name

Susquehanna International Group

Job Title

Quantitative Research Internship – Master's: Summer 2026

Job Description

**Job Title** Quantitative Research Internship – Summer 2026 **Role Summary** A full‑time summer internship focused on quantitative research for systematic trading. Interns develop models, design and backtest trading strategies, and work closely with mentors to apply advanced analytics to real market data. **Expectations** - Complete a structured education program and mentoring sessions. - Produce quantifiable alpha ideas through model building, strategy design, and backtesting. - Collaborate across research, engineering, and trading teams. - Demonstrate clear communication and a proactive learning mindset. **Key Responsibilities** - Apply probability, statistical analysis, and machine learning to forecast market behavior. - Construct and execute trading strategies in a simulated competitive environment. - Backtest strategies on historical data and refine models accordingly. - Engage with multiple teams to broaden understanding of all quant domains. **Required Skills** - Strong analytical and logical reasoning abilities. - Proficiency in Python for large‑scale data processing and analysis. - Familiarity with low‑level languages (e.g., C++) is a plus. - Experience with machine learning and statistical modeling techniques. - Excellent written and verbal communication in a fast‑paced, collaborative setting. - Strategic thinking demonstrated through competitive or game‑involvement. **Required Education & Certifications** - Current enrolment in the penultimate or final year of a Master’s program in Mathematics, Physics, Statistics, Electrical Engineering, Computer Science, Operations Research, or Economics. ---

Philadelphia, United states

On site

18-11-2025

Company Name

Susquehanna International Group

Job Title

Associate Linux/Windows Engineer | Platform Services | Experienced Hire

Job Description

**Job Title:** Associate Linux/Windows Engineer (Platform Services) **Role Summary** A rotational engineering position supporting a high‑performance, 15,000+ server platform that processes large trading data streams. The role spans Linux, Windows, virtualization, storage, and container orchestration, enabling hands‑on experience with cutting‑edge infrastructure while collaborating with senior engineers and mentors. **Expectations** - Rotate through technical domains (Windows, Linux, virtualization, storage, Kubernetes, Service Fabric). - Partner with mentors to drive technical growth and project delivery. - Contribute to design, performance tuning, automation, and configuration management. - Test and deploy new hardware and software in scale labs. - Adhere to a shift schedule: 7 am‑4 pm, 9 am‑6 pm, or 11 am‑8 pm. **Key Responsibilities** - Troubleshoot application, network, and hardware issues across the platform. - Build, configure, and optimize new server and storage environments. - Develop and maintain automation scripts (Python, PowerShell, Bash). - Participate in design, white‑board, and project update sessions. - Evaluate and implement emerging technologies (e.g., container orchestration, high‑performance clustering). - Support performance tuning and capacity planning. - Document solutions and best practices for knowledge sharing. **Required Skills** - Strong foundation in computer architecture, operating systems, and networking concepts. - Proficiency in scripting/automation with Python, PowerShell, or Bash. - Experience administering Windows and/or Linux servers. - Familiarity with virtualization (VMware, Hyper‑V), storage solutions, and container platforms (Kubernetes, Service Fabric). - Excellent problem‑solving, initiative, and communication skills. **Required Education & Certifications** - Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related technical field. - Relevant certifications (e.g., Microsoft Certified: Azure Administrator, Red Hat Certified System Administrator, Kubernetes Administrator) are a plus.

Philadelphia, United states

Hybrid

26-12-2025

Company Name

Susquehanna International Group

Job Title

Quantitative Systematic Trading Internship - PhD: Summer 2026

Job Description

Job Title: Quantitative Systematic Trading Internship – PhD (Summer 2026) Role Summary: Summer internship focused on developing and back‑testing alpha‑generating models for systematic trading. Interns collaborate across teams, receive mentorship, and engage in a rigorous education program to build a deep foundation in quantitative finance. Expectations: - PhD candidates (penultimate/final year) in quantitative disciplines (Mathematics, Physics, Statistics, EE, CS, OR, Economics). - Strong analytical, logical reasoning, and data‑driven decision making. - Clear communication in fast‑paced, collaborative settings. - Self‑motivated, quick learner, thrives in dynamic environment. Key Responsibilities: - Apply probability, statistics, and machine learning to model market behavior and generate alphas. - Design and implement execution strategies for modeled ideas within simulated competitions. - Backtest and refine strategies using historical market data. - Collaborate across Quant, Engineering, and Trading teams to integrate models into production. - Participate in comprehensive training modules and mentorship sessions. Required Skills: - Proficient in Python for large‑scale data processing and analysis. - Experience with low‑level languages (C++ or equivalent) is a plus. - Familiarity with statistical computing, machine learning frameworks, and simulation tools. - Strong problem‑solving and strategic thinking capabilities; interest in competitive games or similar activities. Required Education & Certifications: - PhD in a quantitative field, currently in the penultimate or final year of study. - No additional professional certifications required.

Philadelphia, United states

On site

31-12-2025